******* ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 188 CALLS 2314 TOTAL EDM= .83E-09 STRATEGY=1 ERROR MATRIX UNCERTAINTY= .9% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .22427E-07 5.4582 -.18107E-07** at limit ** 2 Prefactor 16.168 1.0480 .10676E-08 .63112E-03 3 norm .11102E-09 3.9726 .88204E-08** at limit ** 4 Prefactor 104.77 5.8887 -.91620E-08 .16383 5 norm 2.9698 3.9009 .37216E-07 -.49270E-03 6 Prefactor .17802E-06 3.9058 -.13720E-07** at limit ** 7 norm 7.9890 5.2310 -.68056E-08 .18899E-01 8 Prefactor .33307E-09 18.162 -.12528E-06** at limit ** 9 norm 1.4975 .70646 .11663E-07 .48553E-02 10 Prefactor .18452E-06 4.8320 -.19739E-07** at limit ** 11 Prefactor .0000 1.0279 -.36095E-07** at limit ** 12 norm .41796E-01 3.8380 -.16092E-06** at limit ** 13 norm 3.4587 1.9095 .85512E-08 -.88404E-03 14 Prefactor .55511E-10 1.5541 -.50482E-07** at limit ** 15 Prefactor .0000 16.702 .22922E-06** at limit ** 16 Prefactor .49405E-08 4.1419 -.71100E-07** at limit ** 17 Prefactor 6.9098 6.1136 -.98602E-07 -.36574E-02 18 norm 2.5434 .82992 .41805E-08 .34986E-02 19 Prefactor 8.8277 4.5960 .16645E-07 -.46496E-01 20 norm 3.8900 4.1170 .13743E-07 .38244E-01 21 Prefactor 8.8426 2.3682 -.11858E-07 -.79996E-02 22 Prefactor .22204E-09 17.778 .96850E-07** at limit ** 23 Prefactor 1.0608 2.6332 .27530E-07 -.18004E-03 24 Prefactor 14.893 2.3012 .46191E-08 .18557E-01 25 Normalizat 1.1453 .12442 -.37571E-07 -.49928E-03 26 Prefactor .85187 .12656 -.89596E-06 -.44381E-03 ERR DEF= .500 Final values: Prefactor = 2.24265e-08 Prefactor = 16.1682 norm = 1.11022e-10 Prefactor = 104.767 norm = 2.96984 Prefactor = 1.78024e-07 norm = 7.98898 Prefactor = 3.33067e-10 norm = 1.49753 Prefactor = 1.84519e-07 Prefactor = 0 norm = 0.0417963 norm = 3.45868 Prefactor = 5.55112e-11 Prefactor = 0 Prefactor = 4.94049e-09 Prefactor = 6.90984 norm = 2.5434 Prefactor = 8.8277 norm = 3.88996 Prefactor = 8.8426 Prefactor = 2.22045e-10 Prefactor = 1.0608 Prefactor = 14.8934 Normalizat = 1.14535 Prefactor = 0.851874 /sdf/group/fermi/u/kocevski/software/conda/envs/fermitools_v1.0.5/lib/python2.7/site-packages/pyfits/__init__.py:22: PyFITSDeprecationWarning: PyFITS is deprecated, please use astropy.io.fits PyFITSDeprecationWarning) # noqa Likelihood Analysis Tool Support Contact: Daniel Kocevski (daniel.kocevski@nasa.gov) Importing modules... This is make3FGLxml version 01r0. The default diffuse model files and names are for pass 8 and assume you have v10r00p05 of the Fermi Science Tools or higher. This is make4FGLDR3xml version 01r09. The default diffuse model files and names are for P8R3, 4FGL DRs, and the default fermitools directory locations. WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 /sdf/group/fermi/u/kocevski/software/conda/envs/fermitools_v1.0.5/lib/python2.7/site-packages/matplotlib/cbook/deprecation.py:106: MatplotlibDeprecationWarning: The mpl_toolkits.axes_grid module was deprecated in version 2.1. Use mpl_toolkits.axes_grid1 and mpl_toolkits.axisartist provies the same functionality instead. warnings.warn(message, mplDeprecation, stacklevel=1) WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 number of points = 17371 number of fields = 31 RA_SUN column already exists. File will not be modified. Done. Performing analysis on: 4FGL_J1520.5+4209_weekly_bin946 RA = 230.135, Dec = 42.16 tmin = 811123201, tmax = 811728001 emin = 100.0, emax = 100000.0 irfs = P8R3_SOURCE_V2 ROI = 12 zmax = 90 Fitting strategies: Fix sources to their catalog values = True Leave variable source normalizations free = True Perform pre-fit where ALL sources are frozen to catalog values = False Perform secondary fit with a free spectral index = True Remove all catalog sources = False Remove weak (TS < 2) catalog sources = False Freeze Galactic component = False Likelihood fit parameters: Statistic: UNBINNED Optimizer: MINUIT Catalog: 4FGL Repository job = True LAT data source: Data catalog Updating database... UPDATE lightcurve_data_v2 SET job_id='38807034', job_status='RUN', time_executed='2026-09-22 12:44:06.746698', time_epoch_executed='1790106246.75' WHERE source_name='4FGL J1520.5+4209' and cadence='weekly' and bin_id='946' Database successfully updated. Done. Creating custom output directory: /lscratch/kocevski/38807034 Creating custom pfile directory: /lscratch/kocevski/38807034/pfiles/ Retrieving the FT1 file... Issuing command: datacat find --group FT1 --filter 'nMetStop>=811123201.0 && nMetStart<811728001.0' /Data/Flight/Reprocess/P305 Issuing command: datacat find --group FT1 --filter 'nMetStart>564945418 && nMetStop>=811123201.0 && nMetStart<811728001.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Checksum keywords updated successfully. Merged file saved to: /lscratch/kocevski/38807034/ft1_4FGL_J1520.5+4209_weekly_bin946.fits Retrieving the FT1 file... Issuing command: datacat find --group FT2 --filter 'nMetStop>=811123201.0 && nMetStart<811728001.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Merged file saved to: /lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Selecting the photons: time -p gtselect infile=/lscratch/kocevski/38807034/ft1_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807034/ft1_filteredMKT_4FGL_J1520.5+4209_weekly_bin946.fits ra=230.135 dec=42.16 rad=12.0 tmin=811123201.0 tmax=811728001.0 emin=100.0 emax=100000.0 zmin=0.0 zmax=90.0 evclass=128 evtype="INDEF" convtype=-1 phasemin=0.0 phasemax=1.0 evtable="EVENTS" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). Done. real 5.09 user 4.34 sys 0.23 Adding sun position to ft2 file: /sdf/group/fermi/g/LCRepository/Repository/bin/sunpos /lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Selecting the good time intervals: time -p gtmktime scfile=/lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" filter="IN_SAA!=T && LIVETIME>0 && gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nogrb.gti',(START+STOP)/2) && (angsep(RA_SUN,DEC_SUN,RA_ZENITH,DEC_ZENITH)>115 || gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nosolarflares.gti',(START+STOP)/2))" roicut=no evfile=/lscratch/kocevski/38807034/ft1_filteredMKT_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" outfile="/lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits" apply_filter=yes overwrite=yes header_obstimes=yes tstart=0.0 tstop=0.0 gtifile="default" chatter=3 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtmktime version HEAD Applying GTI filter: IN_SAA!=T && LIVETIME>0 && gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nogrb.gti',(START+STOP)/2) && (angsep(RA_SUN,DEC_SUN,RA_ZENITH,DEC_ZENITH)>115 || gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nosolarflares.gti',(START+STOP)/2)) real 0.86 user 0.25 sys 0.13 Number of photons that the gtmktime cut: 1542 Generating the livetime cube: time -p gtltcube evfile="/lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits" evtable="EVENTS" scfile=/lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" outWorking on... /lscratch/kocevski/38806524/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits.....................! real 46.39 user 44.53 sys 1.09 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/38806524/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits', '/lscratch/kocevski/38806524/ft2_4FGL_J1520.5+4209_weekly_bin946.fits', expMap='/lscratch/kocevski/38806524/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', expCube='/lscratch/kocevski/38806524/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/38806524/Model_4FGL_J1520.5+4209_weekly_bin946.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1520.5+4209' 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 3.393e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/38806524/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits Spacecraft file(s): /lscratch/kocevski/38806524/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Exposure map: /lscratch/kocevski/38806524/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits Exposure cube: /lscratch/kocevski/38806524/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/38806524/Model_4FGL_J1520.5+4209_weekly_bin946.xml Optimizer: MINUIT Statistic: UNBINNED Performing an iterative likelihood fit... Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.4117599 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3854998 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .11752E-02 1.0000 .0000 .10000E+07 2 'Prefactor ' 16.176 1.0000 .0000 .10000E+07 3 'norm ' .59751E-03 1.0000 .0000 .10000E+07 4 'Prefactor ' 104.87 1.0000 .0000 .10000E+07 5 'norm ' 2.9615 1.0000 .0000 .10000E+07 6 'Prefactor ' .14057E-02 1.0000 .0000 .10000E+07 7 'norm ' 7.9638 1.0000 .0000 .10000E+07 8 'Prefactor ' .23123E-01 1.0000 .0000 .10000E+07 9 'norm ' 1.4981 1.0000 .0000 .10000E+07 10 'Prefactor ' .60643E-03 1.0000 .0000 .10000E+07 11 'Prefactor ' .16465E-05 1.0000 .0000 .10000E+07 12 'norm ' .40946E-01 1.0000 .0000 .10000E+07 13 'norm ' 3.4503 1.0000 .0000 .10000E+07 14 'Prefactor ' .16242E-05 1.0000 .0000 .10000E+07 15 'Prefactor ' .86718E-03 1.0000 .0000 .10000E+07 16 'Prefactor ' .26424E-03 1.0000 .0000 .10000E+07 17 'Prefactor ' 6.9954 1.0000 .0000 .10000E+07 18 'norm ' 2.5441 1.0000 .0000 .10000E+07 19 'Prefactor ' 8.8259 1.0000 .0000 .10000E+07 20 'norm ' 3.8596 1.0000 .0000 .10000E+07 21 'Prefactor ' 8.8136 1.0000 .0000 .10000E+07 22 'Prefactor ' .13397E-02 1.0000 .0000 .10000E+07 23 'Prefactor ' 1.0621 1.0000 .0000 .10000E+07 24 'Prefactor ' 14.895 1.0000 .0000 .10000E+07 25 'Normalizat' 1.1452 1.0000 .10000E-01 10.000 26 'Prefactor ' .85198 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 188 CALLS 2314 TOTAL EDM= .83E-09 STRATEGY=1 ERROR MATRIX UNCERTAINTY= .9% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .22427E-07 5.4582 -.18107E-07** at limit ** 2 Prefactor 16.168 1.0480 .10676E-08 .63112E-03 3 norm .11102E-09 3.9726 .88204E-08** at limit ** 4 Prefactor 104.77 5.8887 -.91620E-08 .16383 5 norm 2.9698 3.9009 .37216E-07 -.49270E-03 6 Prefactor .17802E-06 3.9058 -.13720E-07** at limit ** 7 norm 7.9890 5.2310 -.68056E-08 .18899E-01 8 Prefactor .33307E-09 18.162 -.12528E-06** at limit ** 9 norm 1.4975 .70646 .11663E-07 .48553E-02 10 Prefactor .18452E-06 4.8320 -.19739E-07** at limit ** 11 Prefactor .0000 1.0279 -.36095E-07** at limit ** 12 norm .41796E-01 3.8380 -.16092E-06** at limit ** 13 norm 3.4587 1.9095 .85512E-08 -.88404E-03 14 Prefactor .55511E-10 1.5541 -.50482E-07** at limit ** 15 Prefactor .0000 16.702 .22922E-06** at limit ** 16 Prefactor .49405E-08 4.1419 -.71100E-07** at limit ** 17 Prefactor 6.9098 6.1136 -.98602E-07 -.36574E-02 18 norm 2.5434 .82992 .41805E-08 .34986E-02 19 Prefactor 8.8277 4.5960 .16645E-07 -.46496E-01 20 norm 3.8900 4.1170 .13743E-07 .38244E-01 21 Prefactor 8.8426 2.3682 -.11858E-07 -.79996E-02 22 Prefactor .22204E-09 17.778 .96850E-07** at limit ** 23 Prefactor 1.0608 2.6332 .27530E-07 -.18004E-03 24 Prefactor 14.893 2.3012 .46191E-08 .18557E-01 25 Normalizat 1.1453 .12442 -.37571E-07 -.49928E-03 26 Prefactor .85187 .12656 -.89596E-06 -.44381E-03 ERR DEF= .500 Final values: Prefactor = 2.24265e-08 Prefactor = 16.1682 norm = 1.11022e-10 Prefactor = 104.767 norm = 2.96984 Prefactor = 1.78024e-07 norm = 7.98898 Prefactor = 3.33067e-10 norm = 1.49753 Prefactor = 1.84519e-07 Prefactor = 0 norm = 0.0417963 norm = 3.45868 Prefactor = 5.55112e-11 Prefactor = 0 Prefactor = 4.94049e-09 Prefactor = 6.90984 norm = 2.5434 Prefactor = 8.8277 norm = 3.88996 Prefactor = 8.8426 Prefactor = 2.22045e-10 Prefactor = 1.0608 Prefactor = 14.8934 Normalizat = 1.14535 Prefactor = 0.851874 file=/lscratch/kocevski/38806818/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits dcostheta=0.025 binsz=1.0 phibins=0 tmin=0.0 tmax=0.0 file_version="1" zmin=0.0 zmax=90.0 chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). Working on file /lscratch/kocevski/38806818/ft2_4FGL_J1520.5+4209_weekly_bin946.fits .....................! real 22.66 user 21.24 sys 0.28 Generating the exposure map: time -p gtexpmap evfile=/lscratch/kocevski/38806818/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" scfile=/lscratch/kocevski/38806818/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" expcube=/lscratch/kocevski/38806818/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38806818/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits irfs="P8R3_SOURCE_V2" evtype="INDEF" srcrad=30.0 nlong=88 nlat=88 nenergies=10 submap=no nlongmin=0 nlongmax=0 nlatmin=0 nlatmax=0 chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). The exposure maps generated by this tool are meant to be used for *unbinned* likelihood analysis only. Do not use them for binned analyses. Computing the ExposureMap using /lscratch/kocevski/38806818/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits .....................! real 79.26 user 73.32 sys 4.49 Generating the xml model: radLim = 0.001 maxRad = 12 normsOnly = True freeVariableSources = True Fixing all sources to their catalog values, except variable sources Creating file and adding sources from 4FGL Added 195 point sources and 0 extended sources Setting source of interest to: 4FGL J1520.5+4209 @ 230.135 42.16 Creating the counts map: time -p gtbin evfile=/lscratch/kocevski/38806818/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits scfile=/lscratch/kocevski/38806818/ft2_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38806818/cmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits algorithm="CMAP" ebinalg="LOG" emin=30.0 emax=200000.0 ebinfile=NONE tbinalg="LIN" tbinfile=NONE nxpix=160 nypix=160 binsz=0.25 coordsys="CEL" xref=230.135 yref=42.16 axisrot=0.0 rafield="RA" decfield="DEC" proj="AIT" hpx_ordering_scheme="RING" hpx_order=3 hpx_ebin=yes hpx_region="" evtable="EVENTS" sctable="SC_DATA" efield="ENERGY" tfield="TIME" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtbin version HEAD real 0.98 user 0.24 sys 0.11 Creating the high resolution counts map: time -p gtbin evfile=/lscratch/kocevski/38806818/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits scfile=/lscratch/kocevski/38806818/ft2_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38806818/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits algorithm="CMAP" ebinalg="LOG" emin=30.0 emax=200000.0 ebinfile=NONE tbinalg="LIN" tbinfile=NONE nxpix=500 nypix=500 binsz=0.1 coordsys="CEL" xref=230.135 yref=42.16 axisrot=0.0 rafield="RA" decfield="DEC" proj="AIT" hpx_ordering_scheme="RING" hpx_order=3 hpx_ebin=yes hpx_region="" evtable="EVENTS" sctable="SC_DATA" efield="ENERGY" tfield="TIME" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtbin version HEAD real 0.78 user 0.25 sys 0.11 Computing the diffuse response: time -p gtdiffrsp evfile=/lscratch/kocevski/38806818/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" scfile=/lscratch/kocevski/38806818/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" srcmdl=/lscratch/kocevski/38806818/Model_4FGL_J1520.5+4209_weekly_bin946.xml irfs="P8R3_SOURCE_V2" evclsmin=0 evclass="INDEF" evtype="INDEF" convert=yes chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). adding source EG_v02 adding source GAL_V02 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806425/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38806425/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:47:14.762641', job_id='38806425', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106434.76', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:47:14 PDT 2026 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806458/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38806458/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:47:20.326993', job_id='38806458', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106440.33', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:47:20 PDT 2026 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806455/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806463/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38806455/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:47:28.474010', job_id='38806455', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106448.47', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:47:28 PDT 2026 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38806463/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:47:33.130701', job_id='38806463', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106453.13', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:47:33 PDT 2026 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806453/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38806453/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:47:49.724186', job_id='38806453', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106469.72', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:47:49 PDT 2026 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 Working on... /lscratch/kocevski/38806690/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits.....................! real 45.03 user 43.17 sys 1.11 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/38806690/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits', '/lscratch/kocevski/38806690/ft2_4FGL_J1520.5+4209_weekly_bin946.fits', expMap='/lscratch/kocevski/38806690/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', expCube='/lscratch/kocevski/38806690/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/38806690/Model_4FGL_J1520.5+4209_weekly_bin946.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1520.5+4209' 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 3.393e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/38806690/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits Spacecraft file(s): /lscratch/kocevski/38806690/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Exposure map: /lscratch/kocevski/38806690/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits Exposure cube: /lscratch/kocevski/38806690/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/38806690/Model_4FGL_J1520.5+4209_weekly_bin946.xml Optimizer: MINUIT Statistic: UNBINNED Performing an iterative likelihood fit... Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.4117599 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3854998 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .11752E-02 1.0000 .0000 .10000E+07 2 'Prefactor ' 16.176 1.0000 .0000 .10000E+07 3 'norm ' .59751E-03 1.0000 .0000 .10000E+07 4 'Prefactor ' 104.87 1.0000 .0000 .10000E+07 5 'norm ' 2.9615 1.0000 .0000 .10000E+07 6 'Prefactor ' .14057E-02 1.0000 .0000 .10000E+07 7 'norm ' 7.9638 1.0000 .0000 .10000E+07 8 'Prefactor ' .23123E-01 1.0000 .0000 .10000E+07 9 'norm ' 1.4981 1.0000 .0000 .10000E+07 10 'Prefactor ' .60643E-03 1.0000 .0000 .10000E+07 11 'Prefactor ' .16465E-05 1.0000 .0000 .10000E+07 12 'norm ' .40946E-01 1.0000 .0000 .10000E+07 13 'norm ' 3.4503 1.0000 .0000 .10000E+07 14 'Prefactor ' .16242E-05 1.0000 .0000 .10000E+07 15 'Prefactor ' .86718E-03 1.0000 .0000 .10000E+07 16 'Prefactor ' .26424E-03 1.0000 .0000 .10000E+07 17 'Prefactor ' 6.9954 1.0000 .0000 .10000E+07 18 'norm ' 2.5441 1.0000 .0000 .10000E+07 19 'Prefactor ' 8.8259 1.0000 .0000 .10000E+07 20 'norm ' 3.8596 1.0000 .0000 .10000E+07 21 'Prefactor ' 8.8136 1.0000 .0000 .10000E+07 22 'Prefactor ' .13397E-02 1.0000 .0000 .10000E+07 23 'Prefactor ' 1.0621 1.0000 .0000 .10000E+07 24 'Prefactor ' 14.895 1.0000 .0000 .10000E+07 25 'Normalizat' 1.1452 1.0000 .10000E-01 10.000 26 'Prefactor ' .85198 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 188 CALLS 2314 TOTAL EDM= .83E-09 STRATEGY=1 ERROR MATRIX UNCERTAINTY= .9% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .22427E-07 5.4582 -.18107E-07** at limit ** 2 Prefactor 16.168 1.0480 .10676E-08 .63112E-03 3 norm .11102E-09 3.9726 .88204E-08** at limit ** 4 Prefactor 104.77 5.8887 -.91620E-08 .16383 5 norm 2.9698 3.9009 .37216E-07 -.49270E-03 6 Prefactor .17802E-06 3.9058 -.13720E-07** at limit ** 7 norm 7.9890 5.2310 -.68056E-08 .18899E-01 8 Prefactor .33307E-09 18.162 -.12528E-06** at limit ** 9 norm 1.4975 .70646 .11663E-07 .48553E-02 10 Prefactor .18452E-06 4.8320 -.19739E-07** at limit ** 11 Prefactor .0000 1.0279 -.36095E-07** at limit ** 12 norm .41796E-01 3.8380 -.16092E-06** at limit ** 13 norm 3.4587 1.9095 .85512E-08 -.88404E-03 14 Prefactor .55511E-10 1.5541 -.50482E-07** at limit ** 15 Prefactor .0000 16.702 .22922E-06** at limit ** 16 Prefactor .49405E-08 4.1419 -.71100E-07** at limit ** 17 Prefactor 6.9098 6.1136 -.98602E-07 -.36574E-02 18 norm 2.5434 .82992 .41805E-08 .34986E-02 19 Prefactor 8.8277 4.5960 .16645E-07 -.46496E-01 20 norm 3.8900 4.1170 .13743E-07 .38244E-01 21 Prefactor 8.8426 2.3682 -.11858E-07 -.79996E-02 22 Prefactor .22204E-09 17.778 .96850E-07** at limit ** 23 Prefactor 1.0608 2.6332 .27530E-07 -.18004E-03 24 Prefactor 14.893 2.3012 .46191E-08 .18557E-01 25 Normalizat 1.1453 .12442 -.37571E-07 -.49928E-03 26 Prefactor .85187 .12656 -.89596E-06 -.44381E-03 ERR DEF= .500 Final values: Prefactor = 2.24265e-08 Prefactor = 16.1682 norm = 1.11022e-10 Prefactor = 104.767 norm = 2.96984 Prefactor = 1.78024e-07 norm = 7.98898 Prefactor = 3.33067e-10 norm = 1.49753 Prefactor = 1.84519e-07 Prefactor = 0 norm = 0.0417963 norm = 3.45868 Prefactor = 5.55112e-11 Prefactor = 0 Prefactor = 4.94049e-09 Prefactor = 6.90984 norm = 2.5434 Prefactor = 8.8277 norm = 3.88996 Prefactor = 8.8426 Prefactor = 2.22045e-10 Prefactor = 1.0608 Prefactor = 14.8934 Normalizat = 1.14535 Prefactor = 0.851874 file=/lscratch/kocevski/38807034/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits dcostheta=0.025 binsz=1.0 phibins=0 tmin=0.0 tmax=0.0 file_version="1" zmin=0.0 zmax=90.0 chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). Working on file /lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits .....................! real 21.78 user 20.10 sys 0.25 Generating the exposure map: time -p gtexpmap evfile=/lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" scfile=/lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" expcube=/lscratch/kocevski/38807034/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807034/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits irfs="P8R3_SOURCE_V2" evtype="INDEF" srcrad=30.0 nlong=88 nlat=88 nenergies=10 submap=no nlongmin=0 nlongmax=0 nlatmin=0 nlatmax=0 chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). The exposure maps generated by this tool are meant to be used for *unbinned* likelihood analysis only. Do not use them for binned analyses. Computing the ExposureMap using /lscratch/kocevski/38807034/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits .....................! real 79.29 user 71.04 sys 4.38 Generating the xml model: radLim = 0.001 maxRad = 12 normsOnly = True freeVariableSources = True Fixing all sources to their catalog values, except variable sources Creating file and adding sources from 4FGL Added 195 point sources and 0 extended sources Setting source of interest to: 4FGL J1520.5+4209 @ 230.135 42.16 Creating the counts map: time -p gtbin evfile=/lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits scfile=/lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807034/cmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits algorithm="CMAP" ebinalg="LOG" emin=30.0 emax=200000.0 ebinfile=NONE tbinalg="LIN" tbinfile=NONE nxpix=160 nypix=160 binsz=0.25 coordsys="CEL" xref=230.135 yref=42.16 axisrot=0.0 rafield="RA" decfield="DEC" proj="AIT" hpx_ordering_scheme="RING" hpx_order=3 hpx_ebin=yes hpx_region="" evtable="EVENTS" sctable="SC_DATA" efield="ENERGY" tfield="TIME" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtbin version HEAD real 1.25 user 0.27 sys 0.11 Creating the high resolution counts map: time -p gtbin evfile=/lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits scfile=/lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807034/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits algorithm="CMAP" ebinalg="LOG" emin=30.0 emax=200000.0 ebinfile=NONE tbinalg="LIN" tbinfile=NONE nxpix=500 nypix=500 binsz=0.1 coordsys="CEL" xref=230.135 yref=42.16 axisrot=0.0 rafield="RA" decfield="DEC" proj="AIT" hpx_ordering_scheme="RING" hpx_order=3 hpx_ebin=yes hpx_region="" evtable="EVENTS" sctable="SC_DATA" efield="ENERGY" tfield="TIME" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtbin version HEAD real 0.82 user 0.25 sys 0.14 Computing the diffuse response: time -p gtdiffrsp evfile=/lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" scfile=/lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" srcmdl=/lscratch/kocevski/38807034/Model_4FGL_J1520.5+4209_weekly_bin946.xml irfs="P8R3_SOURCE_V2" evclsmin=0 evclass="INDEF" evtype="INDEF" convert=yes chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). adding source EG_v02 adding source GAL_V02 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806524/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 number of points = 17371 number of fields = 31 RA_SUN column already exists. File will not be modified. shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. Performing analysis on: 4FGL_J1520.5+4209_weekly_bin946 RA = 230.135, Dec = 42.16 tmin = 811123201, tmax = 811728001 emin = 100.0, emax = 100000.0 irfs = P8R3_SOURCE_V2 ROI = 12 zmax = 90 Fitting strategies: Fix sources to their catalog values = True Leave variable source normalizations free = True Perform pre-fit where ALL sources are frozen to catalog values = False Perform secondary fit with a free spectral index = True Remove all catalog sources = False Remove weak (TS < 2) catalog sources = False Freeze Galactic component = False Likelihood fit parameters: Statistic: UNBINNED Optimizer: MINUIT Catalog: 4FGL Repository job = True LAT data source: Data catalog Updating database... UPDATE lightcurve_data_v2 SET job_id='38807258', job_status='RUN', time_executed='2026-09-22 12:45:46.068562', time_epoch_executed='1790106346.07' WHERE source_name='4FGL J1520.5+4209' and cadence='weekly' and bin_id='946' Database successfully updated. Done. Creating custom output directory: /lscratch/kocevski/38807258 Creating custom pfile directory: /lscratch/kocevski/38807258/pfiles/ Retrieving the FT1 file... Issuing command: datacat find --group FT1 --filter 'nMetStop>=811123201.0 && nMetStart<811728001.0' /Data/Flight/Reprocess/P305 Issuing command: datacat find --group FT1 --filter 'nMetStart>564945418 && nMetStop>=811123201.0 && nMetStart<811728001.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Checksum keywords updated successfully. Merged file saved to: /lscratch/kocevski/38807258/ft1_4FGL_J1520.5+4209_weekly_bin946.fits Retrieving the FT1 file... Issuing command: datacat find --group FT2 --filter 'nMetStop>=811123201.0 && nMetStart<811728001.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Merged file saved to: /lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Selecting the photons: time -p gtselect infile=/lscratch/kocevski/38807258/ft1_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807258/ft1_filteredMKT_4FGL_J1520.5+4209_weekly_bin946.fits ra=230.135 dec=42.16 rad=12.0 tmin=811123201.0 tmax=811728001.0 emin=100.0 emax=100000.0 zmin=0.0 zmax=90.0 evclass=128 evtype="INDEF" convtype=-1 phasemin=0.0 phasemax=1.0 evtable="EVENTS" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). Done. real 5.53 user 4.16 sys 0.23 Adding sun position to ft2 file: /sdf/group/fermi/g/LCRepository/Repository/bin/sunpos /lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Selecting the good time intervals: time -p gtmktime scfile=/lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" filter="IN_SAA!=T && LIVETIME>0 && gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nogrb.gti',(START+STOP)/2) && (angsep(RA_SUN,DEC_SUN,RA_ZENITH,DEC_ZENITH)>115 || gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nosolarflares.gti',(START+STOP)/2))" roicut=no evfile=/lscratch/kocevski/38807258/ft1_filteredMKT_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" outfile="/lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits" apply_filter=yes overwrite=yes header_obstimes=yes tstart=0.0 tstop=0.0 gtifile="default" chatter=3 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtmktime version HEAD Applying GTI filter: IN_SAA!=T && LIVETIME>0 && gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nogrb.gti',(START+STOP)/2) && (angsep(RA_SUN,DEC_SUN,RA_ZENITH,DEC_ZENITH)>115 || gtifilter('/sdf/group/fermi/g/LCRepository/Likelihood/GTIs/nosolarflares.gti',(START+STOP)/2)) real 0.74 user 0.23 sys 0.14 Number of photons that the gtmktime cut: 1542 Generating the livetime cube: time -p gtltcube evfile="/lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits" evtable="EVENTS" scfile=/lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" outDone. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806690/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38806690/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:50:46.327129', job_id='38806690', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106646.33', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:50:46 PDT 2026 Working on... /lscratch/kocevski/38806818/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits.....................! real 51.74 user 49.34 sys 1.02 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/38806818/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits', '/lscratch/kocevski/38806818/ft2_4FGL_J1520.5+4209_weekly_bin946.fits', expMap='/lscratch/kocevski/38806818/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', expCube='/lscratch/kocevski/38806818/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/38806818/Model_4FGL_J1520.5+4209_weekly_bin946.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1520.5+4209' 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 3.393e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/38806818/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits Spacecraft file(s): /lscratch/kocevski/38806818/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Exposure map: /lscratch/kocevski/38806818/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits Exposure cube: /lscratch/kocevski/38806818/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/38806818/Model_4FGL_J1520.5+4209_weekly_bin946.xml Optimizer: MINUIT Statistic: UNBINNED Performing an iterative likelihood fit... Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.4117599 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3854998 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .11752E-02 1.0000 .0000 .10000E+07 2 'Prefactor ' 16.176 1.0000 .0000 .10000E+07 3 'norm ' .59751E-03 1.0000 .0000 .10000E+07 4 'Prefactor ' 104.87 1.0000 .0000 .10000E+07 5 'norm ' 2.9615 1.0000 .0000 .10000E+07 6 'Prefactor ' .14057E-02 1.0000 .0000 .10000E+07 7 'norm ' 7.9638 1.0000 .0000 .10000E+07 8 'Prefactor ' .23123E-01 1.0000 .0000 .10000E+07 9 'norm ' 1.4981 1.0000 .0000 .10000E+07 10 'Prefactor ' .60643E-03 1.0000 .0000 .10000E+07 11 'Prefactor ' .16465E-05 1.0000 .0000 .10000E+07 12 'norm ' .40946E-01 1.0000 .0000 .10000E+07 13 'norm ' 3.4503 1.0000 .0000 .10000E+07 14 'Prefactor ' .16242E-05 1.0000 .0000 .10000E+07 15 'Prefactor ' .86718E-03 1.0000 .0000 .10000E+07 16 'Prefactor ' .26424E-03 1.0000 .0000 .10000E+07 17 'Prefactor ' 6.9954 1.0000 .0000 .10000E+07 18 'norm ' 2.5441 1.0000 .0000 .10000E+07 19 'Prefactor ' 8.8259 1.0000 .0000 .10000E+07 20 'norm ' 3.8596 1.0000 .0000 .10000E+07 21 'Prefactor ' 8.8136 1.0000 .0000 .10000E+07 22 'Prefactor ' .13397E-02 1.0000 .0000 .10000E+07 23 'Prefactor ' 1.0621 1.0000 .0000 .10000E+07 24 'Prefactor ' 14.895 1.0000 .0000 .10000E+07 25 'Normalizat' 1.1452 1.0000 .10000E-01 10.000 26 'Prefactor ' .85198 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 188 CALLS 2314 TOTAL EDM= .83E-09 STRATEGY=1 ERROR MATRIX UNCERTAINTY= .9% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .22427E-07 5.4582 -.18107E-07** at limit ** 2 Prefactor 16.168 1.0480 .10676E-08 .63112E-03 3 norm .11102E-09 3.9726 .88204E-08** at limit ** 4 Prefactor 104.77 5.8887 -.91620E-08 .16383 5 norm 2.9698 3.9009 .37216E-07 -.49270E-03 6 Prefactor .17802E-06 3.9058 -.13720E-07** at limit ** 7 norm 7.9890 5.2310 -.68056E-08 .18899E-01 8 Prefactor .33307E-09 18.162 -.12528E-06** at limit ** 9 norm 1.4975 .70646 .11663E-07 .48553E-02 10 Prefactor .18452E-06 4.8320 -.19739E-07** at limit ** 11 Prefactor .0000 1.0279 -.36095E-07** at limit ** 12 norm .41796E-01 3.8380 -.16092E-06** at limit ** 13 norm 3.4587 1.9095 .85512E-08 -.88404E-03 14 Prefactor .55511E-10 1.5541 -.50482E-07** at limit ** 15 Prefactor .0000 16.702 .22922E-06** at limit ** 16 Prefactor .49405E-08 4.1419 -.71100E-07** at limit ** 17 Prefactor 6.9098 6.1136 -.98602E-07 -.36574E-02 18 norm 2.5434 .82992 .41805E-08 .34986E-02 19 Prefactor 8.8277 4.5960 .16645E-07 -.46496E-01 20 norm 3.8900 4.1170 .13743E-07 .38244E-01 21 Prefactor 8.8426 2.3682 -.11858E-07 -.79996E-02 22 Prefactor .22204E-09 17.778 .96850E-07** at limit ** 23 Prefactor 1.0608 2.6332 .27530E-07 -.18004E-03 24 Prefactor 14.893 2.3012 .46191E-08 .18557E-01 25 Normalizat 1.1453 .12442 -.37571E-07 -.49928E-03 26 Prefactor .85187 .12656 -.89596E-06 -.44381E-03 ERR DEF= .500 Final values: Prefactor = 2.24265e-08 Prefactor = 16.1682 norm = 1.11022e-10 Prefactor = 104.767 norm = 2.96984 Prefactor = 1.78024e-07 norm = 7.98898 Prefactor = 3.33067e-10 norm = 1.49753 Prefactor = 1.84519e-07 Prefactor = 0 norm = 0.0417963 norm = 3.45868 Prefactor = 5.55112e-11 Prefactor = 0 Prefactor = 4.94049e-09 Prefactor = 6.90984 norm = 2.5434 Prefactor = 8.8277 norm = 3.88996 Prefactor = 8.8426 Prefactor = 2.22045e-10 Prefactor = 1.0608 Prefactor = 14.8934 Normalizat = 1.14535 Prefactor = 0.851874 file=/lscratch/kocevski/38807258/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits dcostheta=0.025 binsz=1.0 phibins=0 tmin=0.0 tmax=0.0 file_version="1" zmin=0.0 zmax=90.0 chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). Working on file /lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits .....................! real 22.52 user 21.43 sys 0.26 Generating the exposure map: time -p gtexpmap evfile=/lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" scfile=/lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" expcube=/lscratch/kocevski/38807258/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807258/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits irfs="P8R3_SOURCE_V2" evtype="INDEF" srcrad=30.0 nlong=88 nlat=88 nenergies=10 submap=no nlongmin=0 nlongmax=0 nlatmin=0 nlatmax=0 chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). The exposure maps generated by this tool are meant to be used for *unbinned* likelihood analysis only. Do not use them for binned analyses. Computing the ExposureMap using /lscratch/kocevski/38807258/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits .....................! real 79.75 user 72.81 sys 4.67 Generating the xml model: radLim = 0.001 maxRad = 12 normsOnly = True freeVariableSources = True Fixing all sources to their catalog values, except variable sources Creating file and adding sources from 4FGL Added 195 point sources and 0 extended sources Setting source of interest to: 4FGL J1520.5+4209 @ 230.135 42.16 Creating the counts map: time -p gtbin evfile=/lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits scfile=/lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807258/cmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits algorithm="CMAP" ebinalg="LOG" emin=30.0 emax=200000.0 ebinfile=NONE tbinalg="LIN" tbinfile=NONE nxpix=160 nypix=160 binsz=0.25 coordsys="CEL" xref=230.135 yref=42.16 axisrot=0.0 rafield="RA" decfield="DEC" proj="AIT" hpx_ordering_scheme="RING" hpx_order=3 hpx_ebin=yes hpx_region="" evtable="EVENTS" sctable="SC_DATA" efield="ENERGY" tfield="TIME" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtbin version HEAD real 0.81 user 0.24 sys 0.20 Creating the high resolution counts map: time -p gtbin evfile=/lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits scfile=/lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits outfile=/lscratch/kocevski/38807258/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits algorithm="CMAP" ebinalg="LOG" emin=30.0 emax=200000.0 ebinfile=NONE tbinalg="LIN" tbinfile=NONE nxpix=500 nypix=500 binsz=0.1 coordsys="CEL" xref=230.135 yref=42.16 axisrot=0.0 rafield="RA" decfield="DEC" proj="AIT" hpx_ordering_scheme="RING" hpx_order=3 hpx_ebin=yes hpx_region="" evtable="EVENTS" sctable="SC_DATA" efield="ENERGY" tfield="TIME" chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). This is gtbin version HEAD real 0.82 user 0.25 sys 0.14 Computing the diffuse response: time -p gtdiffrsp evfile=/lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits evtable="EVENTS" scfile=/lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits sctable="SC_DATA" srcmdl=/lscratch/kocevski/38807258/Model_4FGL_J1520.5+4209_weekly_bin946.xml irfs="P8R3_SOURCE_V2" evclsmin=0 evclass="INDEF" evtype="INDEF" convert=yes chatter=2 clobber=yes debug=no gui=no mode="ql" WARNING: version mismatch between CFITSIO header (v3.43) and linked library (v3.41). adding source EG_v02 adding source GAL_V02 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 Working on... /lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits.....................! real 52.09 user 47.97 sys 1.09 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits', '/lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits', expMap='/lscratch/kocevski/38807034/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', expCube='/lscratch/kocevski/38807034/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/38807034/Model_4FGL_J1520.5+4209_weekly_bin946.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1520.5+4209' 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 3.393e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/38807034/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits Spacecraft file(s): /lscratch/kocevski/38807034/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Exposure map: /lscratch/kocevski/38807034/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits Exposure cube: /lscratch/kocevski/38807034/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/38807034/Model_4FGL_J1520.5+4209_weekly_bin946.xml Optimizer: MINUIT Statistic: UNBINNED Performing an iterative likelihood fit... Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.4117599 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3854998 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .11752E-02 1.0000 .0000 .10000E+07 2 'Prefactor ' 16.176 1.0000 .0000 .10000E+07 3 'norm ' .59751E-03 1.0000 .0000 .10000E+07 4 'Prefactor ' 104.87 1.0000 .0000 .10000E+07 5 'norm ' 2.9615 1.0000 .0000 .10000E+07 6 'Prefactor ' .14057E-02 1.0000 .0000 .10000E+07 7 'norm ' 7.9638 1.0000 .0000 .10000E+07 8 'Prefactor ' .23123E-01 1.0000 .0000 .10000E+07 9 'norm ' 1.4981 1.0000 .0000 .10000E+07 10 'Prefactor ' .60643E-03 1.0000 .0000 .10000E+07 11 'Prefactor ' .16465E-05 1.0000 .0000 .10000E+07 12 'norm ' .40946E-01 1.0000 .0000 .10000E+07 13 'norm ' 3.4503 1.0000 .0000 .10000E+07 14 'Prefactor ' .16242E-05 1.0000 .0000 .10000E+07 15 'Prefactor ' .86718E-03 1.0000 .0000 .10000E+07 16 'Prefactor ' .26424E-03 1.0000 .0000 .10000E+07 17 'Prefactor ' 6.9954 1.0000 .0000 .10000E+07 18 'norm ' 2.5441 1.0000 .0000 .10000E+07 19 'Prefactor ' 8.8259 1.0000 .0000 .10000E+07 20 'norm ' 3.8596 1.0000 .0000 .10000E+07 21 'Prefactor ' 8.8136 1.0000 .0000 .10000E+07 22 'Prefactor ' .13397E-02 1.0000 .0000 .10000E+07 23 'Prefactor ' 1.0621 1.0000 .0000 .10000E+07 24 'Prefactor ' 14.895 1.0000 .0000 .10000E+07 25 'Normalizat' 1.1452 1.0000 .10000E-01 10.000 26 'Prefactor ' .85198 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 188 CALLS 2314 TOTAL EDM= .83E-09 STRATEGY=1 ERROR MATRIX UNCERTAINTY= .9% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .22427E-07 5.4582 -.18107E-07** at limit ** 2 Prefactor 16.168 1.0480 .10676E-08 .63112E-03 3 norm .11102E-09 3.9726 .88204E-08** at limit ** 4 Prefactor 104.77 5.8887 -.91620E-08 .16383 5 norm 2.9698 3.9009 .37216E-07 -.49270E-03 6 Prefactor .17802E-06 3.9058 -.13720E-07** at limit ** 7 norm 7.9890 5.2310 -.68056E-08 .18899E-01 8 Prefactor .33307E-09 18.162 -.12528E-06** at limit ** 9 norm 1.4975 .70646 .11663E-07 .48553E-02 10 Prefactor .18452E-06 4.8320 -.19739E-07** at limit ** 11 Prefactor .0000 1.0279 -.36095E-07** at limit ** 12 norm .41796E-01 3.8380 -.16092E-06** at limit ** 13 norm 3.4587 1.9095 .85512E-08 -.88404E-03 14 Prefactor .55511E-10 1.5541 -.50482E-07** at limit ** 15 Prefactor .0000 16.702 .22922E-06** at limit ** 16 Prefactor .49405E-08 4.1419 -.71100E-07** at limit ** 17 Prefactor 6.9098 6.1136 -.98602E-07 -.36574E-02 18 norm 2.5434 .82992 .41805E-08 .34986E-02 19 Prefactor 8.8277 4.5960 .16645E-07 -.46496E-01 20 norm 3.8900 4.1170 .13743E-07 .38244E-01 21 Prefactor 8.8426 2.3682 -.11858E-07 -.79996E-02 22 Prefactor .22204E-09 17.778 .96850E-07** at limit ** 23 Prefactor 1.0608 2.6332 .27530E-07 -.18004E-03 24 Prefactor 14.893 2.3012 .46191E-08 .18557E-01 25 Normalizat 1.1453 .12442 -.37571E-07 -.49928E-03 26 Prefactor .85187 .12656 -.89596E-06 -.44381E-03 ERR DEF= .500 Final values: Prefactor = 2.24265e-08 Prefactor = 16.1682 norm = 1.11022e-10 Prefactor = 104.767 norm = 2.96984 Prefactor = 1.78024e-07 norm = 7.98898 Prefactor = 3.33067e-10 norm = 1.49753 Prefactor = 1.84519e-07 Prefactor = 0 norm = 0.0417963 norm = 3.45868 Prefactor = 5.55112e-11 Prefactor = 0 Prefactor = 4.94049e-09 Prefactor = 6.90984 norm = 2.5434 Prefactor = 8.8277 norm = 3.88996 Prefactor = 8.8426 Prefactor = 2.22045e-10 Prefactor = 1.0608 Prefactor = 14.8934 Normalizat = 1.14535 Prefactor = 0.851874 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38806818/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38806818/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:54:27.551260', job_id='38806818', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106867.55', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:54:27 PDT 2026 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38807034/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38807034/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:56:20.395969', job_id='38807034', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790106980.4', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:56:20 PDT 2026 Working on... /lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits.....................! real 51.18 user 48.69 sys 1.27 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits', '/lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits', expMap='/lscratch/kocevski/38807258/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', expCube='/lscratch/kocevski/38807258/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/38807258/Model_4FGL_J1520.5+4209_weekly_bin946.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1520.5+4209' 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 3.393e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/38807258/ft1_filtered_4FGL_J1520.5+4209_weekly_bin946.fits Spacecraft file(s): /lscratch/kocevski/38807258/ft2_4FGL_J1520.5+4209_weekly_bin946.fits Exposure map: /lscratch/kocevski/38807258/expmap_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits Exposure cube: /lscratch/kocevski/38807258/ltcube_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/38807258/Model_4FGL_J1520.5+4209_weekly_bin946.xml Optimizer: MINUIT Statistic: UNBINNED Performing an iterative likelihood fit... Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.4117599 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3854998 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .11752E-02 1.0000 .0000 .10000E+07 2 'Prefactor ' 16.176 1.0000 .0000 .10000E+07 3 'norm ' .59751E-03 1.0000 .0000 .10000E+07 4 'Prefactor ' 104.87 1.0000 .0000 .10000E+07 5 'norm ' 2.9615 1.0000 .0000 .10000E+07 6 'Prefactor ' .14057E-02 1.0000 .0000 .10000E+07 7 'norm ' 7.9638 1.0000 .0000 .10000E+07 8 'Prefactor ' .23123E-01 1.0000 .0000 .10000E+07 9 'norm ' 1.4981 1.0000 .0000 .10000E+07 10 'Prefactor ' .60643E-03 1.0000 .0000 .10000E+07 11 'Prefactor ' .16465E-05 1.0000 .0000 .10000E+07 12 'norm ' .40946E-01 1.0000 .0000 .10000E+07 13 'norm ' 3.4503 1.0000 .0000 .10000E+07 14 'Prefactor ' .16242E-05 1.0000 .0000 .10000E+07 15 'Prefactor ' .86718E-03 1.0000 .0000 .10000E+07 16 'Prefactor ' .26424E-03 1.0000 .0000 .10000E+07 17 'Prefactor ' 6.9954 1.0000 .0000 .10000E+07 18 'norm ' 2.5441 1.0000 .0000 .10000E+07 19 'Prefactor ' 8.8259 1.0000 .0000 .10000E+07 20 'norm ' 3.8596 1.0000 .0000 .10000E+07 21 'Prefactor ' 8.8136 1.0000 .0000 .10000E+07 22 'Prefactor ' .13397E-02 1.0000 .0000 .10000E+07 23 'Prefactor ' 1.0621 1.0000 .0000 .10000E+07 24 'Prefactor ' 14.895 1.0000 .0000 .10000E+07 25 'Normalizat' 1.1452 1.0000 .10000E-01 10.000 26 'Prefactor ' .85198 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 188 CALLS 2314 TOTAL EDM= .83E-09 STRATEGY=1 ERROR MATRIX UNCERTAINTY= .9% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .22427E-07 5.4582 -.18107E-07** at limit ** 2 Prefactor 16.168 1.0480 .10676E-08 .63112E-03 3 norm .11102E-09 3.9726 .88204E-08** at limit ** 4 Prefactor 104.77 5.8887 -.91620E-08 .16383 5 norm 2.9698 3.9009 .37216E-07 -.49270E-03 6 Prefactor .17802E-06 3.9058 -.13720E-07** at limit ** 7 norm 7.9890 5.2310 -.68056E-08 .18899E-01 8 Prefactor .33307E-09 18.162 -.12528E-06** at limit ** 9 norm 1.4975 .70646 .11663E-07 .48553E-02 10 Prefactor .18452E-06 4.8320 -.19739E-07** at limit ** 11 Prefactor .0000 1.0279 -.36095E-07** at limit ** 12 norm .41796E-01 3.8380 -.16092E-06** at limit ** 13 norm 3.4587 1.9095 .85512E-08 -.88404E-03 14 Prefactor .55511E-10 1.5541 -.50482E-07** at limit ** 15 Prefactor .0000 16.702 .22922E-06** at limit ** 16 Prefactor .49405E-08 4.1419 -.71100E-07** at limit ** 17 Prefactor 6.9098 6.1136 -.98602E-07 -.36574E-02 18 norm 2.5434 .82992 .41805E-08 .34986E-02 19 Prefactor 8.8277 4.5960 .16645E-07 -.46496E-01 20 norm 3.8900 4.1170 .13743E-07 .38244E-01 21 Prefactor 8.8426 2.3682 -.11858E-07 -.79996E-02 22 Prefactor .22204E-09 17.778 .96850E-07** at limit ** 23 Prefactor 1.0608 2.6332 .27530E-07 -.18004E-03 24 Prefactor 14.893 2.3012 .46191E-08 .18557E-01 25 Normalizat 1.1453 .12442 -.37571E-07 -.49928E-03 26 Prefactor .85187 .12656 -.89596E-06 -.44381E-03 ERR DEF= .500 Final values: Prefactor = 2.24265e-08 Prefactor = 16.1682 norm = 1.11022e-10 Prefactor = 104.767 norm = 2.96984 Prefactor = 1.78024e-07 norm = 7.98898 Prefactor = 3.33067e-10 norm = 1.49753 Prefactor = 1.84519e-07 Prefactor = 0 norm = 0.0417963 norm = 3.45868 Prefactor = 5.55112e-11 Prefactor = 0 Prefactor = 4.94049e-09 Prefactor = 6.90984 norm = 2.5434 Prefactor = 8.8277 norm = 3.88996 Prefactor = 8.8426 Prefactor = 2.22045e-10 Prefactor = 1.0608 Prefactor = 14.8934 Normalizat = 1.14535 Prefactor = 0.851874 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=OK 524 CALLS 2838 TOTAL EDM= .12E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .22427E-07 5.8354 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Prefactor 16.168 12.643 .24875E-03 -1.5628 3 norm .11102E-09 4.1148 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 Prefactor 104.77 58.315 .97657E-04 -1.5503 5 norm 2.9698 3.9614 .58981E-03 -1.5673 6 Prefactor .17802E-06 6.7305 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm 7.9890 5.3795 .35506E-03 -1.5651 8 Prefactor .33307E-09 3.4641 .12700E-01 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 9 norm 1.4975 .71271 .87479E-03 -1.5683 10 Prefactor .18452E-06 8.2160 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 11 Prefactor .0000 1.0282 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 norm .41796E-01 .30164 .40429E-02 -1.5704 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 norm 3.4587 1.9224 .54423E-03 -1.5671 14 Prefactor .55511E-10 1.5743 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 15 Prefactor .0000 17.695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 16 Prefactor .49405E-08 4.3695 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor 6.9098 6.1468 .37906E-03 -1.5655 18 norm 2.5434 .87032 .63996E-03 -1.5676 19 Prefactor 8.8277 5.9136 .33715E-03 -1.5649 20 norm 3.8900 5.7961 .51342E-03 -1.5669 21 Prefactor 8.8426 9.6257 .33739E-03 -1.5648 22 Prefactor .22204E-09 18.943 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 23 Prefactor 1.0608 3.7167 .11867E-02 -1.5687 24 Prefactor 14.893 15.694 .25925E-03 -1.5631 25 Normalizat 1.1453 .10853 .36402E-01 -.88309 26 Prefactor .85187 .10915 .44390E-01 -.97844 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 1.24199e-06 Minuit parameter uncertainties: 1 0.000723488 2 12.6426 3 4.09983e-05 4 58.3149 5 3.96139 6 0.00218918 7 5.37945 8 6.62799e-05 9 0.712708 10 0.0024624 11 7.05341e-06 12 0.224567 13 1.92236 14 1.92682e-05 15 1.43703e-05 16 0.000293289 17 6.14678 18 0.870319 19 5.91365 20 5.79615 21 9.62573 22 0.000127022 23 3.71674 24 15.6944 25 0.108551 26 0.10918 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 16681.3843246 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 4.940e-09 2.933e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 2.505e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 1.092e-01 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 1.086e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): -0.00 Ra Dec: 230.135 42.160 Photon Flux Upper Limit: 2.86062074311e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00222560459527 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/38807258/likelihoodResults_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.txt Performing a free index iterative likelihood fit... Freezing all point sources, except source of interest... Done. Freeing candidate source... Done. Fit tolerance = 1 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3890117 delta logL = -0.00468709923371 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843254 delta logL = -8.61789885676e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .37534E-05 1.0000 .0000 .10000E+07 2 'Index ' 2.7280 1.0000 .0000 10.000 3 'Normalizat' 1.1454 1.0000 .10000E-01 10.000 4 'Prefactor ' .85192 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .6280E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 16681.38 FROM MIGRAD STATUS=CONVERGED 69 CALLS 243 TOTAL EDM= .21E-09 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .72164E-09 1.0884 .42118E-03** at limit ** 2 Index 1.3495 7.2653 .50000 -.81855E-09 3 Normalizat 1.1453 .15684E-02 .36396E-01 .80633E-03 4 Prefactor .85188 .16352E-02 .44389E-01 .82572E-03 ERR DEF= .500 Final values: Prefactor = 7.21645e-10 Index = 1.34946 Normalizat = 1.14535 Prefactor = 0.851875 ********** ** 18 **HESSE ********** FCN= 16681.38 FROM HESSE STATUS=NOT POSDEF 31 CALLS 274 TOTAL EDM= .10E-08 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .72164E-09 5.4775 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 1.3495 5.6286 .50000 -.81848 3 Normalizat 1.1453 .35223E-02 .22188E-03 -.88309 4 Prefactor .85188 .36711E-02 .26275E-03 -.97844 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 1.03239e-09 Minuit parameter uncertainties: 1 0.000125191 2 39072.8 3 0.00352233 4 0.00367109 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 16681.3843246 delta logL = 3.41970007867e-10 Extracting fit parameters... 4FGL J1520.5+4209 Spectrum: PowerLaw 308 Prefactor: 7.216e-10 1.252e-04 0.000e+00 1.000e+06 ( 1.000e-13) 309 Index: 1.349e+00 3.907e+04 0.000e+00 1.000e+01 (-1.000e+00) 310 Scale: 9.357e+02 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 625 Prefactor: 8.519e-01 3.671e-03 0.000e+00 1.000e+01 ( 1.000e+00) 626 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 627 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 624 Normalization: 1.145e+00 3.522e-03 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): -0.00 Ra Dec: 230.135 42.160 Creating a high resolution counts map... INFO: Auto-setting vmin to -1.000e-01 [aplpy.core] INFO: Auto-setting vmax to 1.110e+00 [aplpy.core] Saving /lscratch/kocevski/38807258/cmap_HighResolution_811123201_811728001_4FGL_J1520.5+4209_weekly_bin946.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='2.23e-03', job_status='DONE', photon_flux_upper_limit='2.86e-08', time_completed='2026-09-22 12:59:26.512523', job_id='38807258', GAL2='0.85', fit_tolerance='1e-08', EG2='1.15', EG='1.15', time_epoch_completed='1790107166.51', return_code2='102', ts='-0.00', comment='SUCCESS', return_code='0', GAL='0.85', dlogl='3.42e-10', ts2='-0.00', photon_index_error='0.00', photon_index='2.50' WHERE bin_id='946' AND source_name='4FGL J1520.5+4209' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Sep 22 12:59:27 PDT 2026