/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). /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). number of points = 7126 number of fields = 31 RA_SUN column already exists. File will not be modified. Done. Performing analysis on: 4FGL_J1855.8-2028_daily_bin2118 RA = 283.975, Dec = -20.4694 tmin = 788313601, tmax = 788572801 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='18067689', job_status='RUN', time_executed='2025-12-28 01:22:32.973865', time_epoch_executed='1766913752.97' WHERE source_name='4FGL J1855.8-2028' and cadence='daily' and bin_id='2118' Database successfully updated. Done. Creating custom output directory: /lscratch/kocevski/18067689 Creating custom pfile directory: /lscratch/kocevski/18067689/pfiles/ Retrieving the FT1 file... Issuing command: datacat find --group FT1 --filter 'nMetStop>=788313601.0 && nMetStart<788572801.0' /Data/Flight/Reprocess/P305 Issuing command: datacat find --group FT1 --filter 'nMetStart>564945418 && nMetStop>=788313601.0 && nMetStart<788572801.0' /Data/Flight/Level1/LPA Retrieving 44 files... Done. Merging files... Checksum keywords updated successfully. Merged file saved to: /lscratch/kocevski/18067689/ft1_4FGL_J1855.8-2028_daily_bin2118.fits Retrieving the FT1 file... Issuing command: datacat find --group FT2 --filter 'nMetStop>=788313601.0 && nMetStart<788572801.0' /Data/Flight/Level1/LPA Retrieving 44 files... Done. Merging files... Merged file saved to: /lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits Selecting the photons: time -p gtselect infile=/lscratch/kocevski/18067689/ft1_4FGL_J1855.8-2028_daily_bin2118.fits outfile=/lscratch/kocevski/18067689/ft1_filteredMKT_4FGL_J1855.8-2028_daily_bin2118.fits ra=283.975 dec=-20.4694 rad=12.0 tmin=788313601.0 tmax=788572801.0 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 2.30 user 1.75 sys 0.14 Adding sun position to ft2 file: /sdf/group/fermi/g/LCRepository/Repository/bin/sunpos /lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits Selecting the good time intervals: time -p gtmktime scfile=/lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.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/18067689/ft1_filteredMKT_4FGL_J1855.8-2028_daily_bin2118.fits evtable="EVENTS" outfile="/lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.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 0.61 user 0.18 sys 0.12 Number of photons that the gtmktime cut: 3797 Generating the livetime cube: time -p gtltcube evfile="/lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits" evtable="EVENTS" scfile=/lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits sctable="SC_DATA" outfile=/lscratch/kocevski/18067689/ltcube_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.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/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits .....................! real 7.57 user 6.96 sys 0.23 Generating the exposure map: time -p gtexpmap evfile=/lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits evtable="EVENTS" scfile=/lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits sctable="SC_DATA" expcube=/lscratch/kocevski/18067689/ltcube_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.fits outfile=/lscratch/kocevski/18067689/expmap_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.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/18067689/ltcube_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.fits .....................! real 67.51 user 63.04 sys 3.85 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 Extended source W 28 in ROI with RadialDisk spatial model. Extended source HESS J1804-216 in ROI with RadialDisk spatial model. Extended source W 30 in ROI with RadialDisk spatial model. Extended source HESS J1808-204 in ROI with RadialDisk spatial model. Extended source HESS J1809-193 in ROI with RadialDisk spatial model. Extended source HESS J1813-178 in ROI with RadialDisk spatial model. Extended source HESS J1825-137 in ROI with RadialGaussian spatial model. Extended source W 41 in ROI with RadialGaussian spatial model. Extended source G24.7+0.6 in ROI with RadialDisk spatial model. Extended source FGES J1836.5-0651 in ROI with RadialDisk spatial model. Extended source FGES J1838.9-0704 in ROI with RadialDisk spatial model. Extended source Kes 73 in ROI with RadialDisk spatial model. Extended source HESS J1841-055 in ROI, make sure /sdf/group/fermi/g/LCRepository/Likelihood/ExtendedSources/Extended_8years/Templates/HESSJ1841-055.fits is the correct path to the extended template. Extended source FGES J1745.8-3028 in ROI with RadialDisk spatial model. Extended source Kes 79 in ROI with RadialDisk spatial model. Extended source W 44 in ROI, make sure /sdf/group/fermi/g/LCRepository/Likelihood/ExtendedSources/Extended_8years/Templates/W44.fits is the correct path to the extended template. Added 489 point sources and 16 extended sources If using unbinned likelihood you will need to rerun gtdiffrsp for the extended sources or rerun the makeModel function with optional argument psForce=True Setting source of interest to: 4FGL J1855.8-2028 @ 283.975 -20.4694 Creating the counts map: time -p gtbin evfile=/lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits scfile=/lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits outfile=/lscratch/kocevski/18067689/cmap_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.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=283.975 yref=-20.4694 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 0.46 user 0.22 sys 0.13 Creating the high resolution counts map: time -p gtbin evfile=/lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits scfile=/lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits outfile=/lscratch/kocevski/18067689/cmap_HighResolution_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.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=283.975 yref=-20.4694 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 0.49 user 0.24 sys 0.12 Computing the diffuse response: time -p gtdiffrsp evfile=/lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits evtable="EVENTS" scfile=/lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits sctable="SC_DATA" srcmdl=/lscratch/kocevski/18067689/Model_4FGL_J1855.8-2028_daily_bin2118.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 FGES J1745.8-3028 adding source FGES J1836.5-0651 adding source FGES J1838.9-0704 adding source G24.7+0.6 adding source GAL_V02 adding source HESS J1804-216 adding source HESS J1808-204 adding source HESS J1809-193 adding source HESS J1813-178 adding source HESS J1825-137 adding source HESS J1841-055 adding source Kes 73 adding source Kes 79 adding source W 28 adding source W 30 adding source W 41 adding source W 44 Working on... /lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits.....................! real 416.73 user 412.45 sys 1.35 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits', '/lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits', expMap='/lscratch/kocevski/18067689/expmap_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.fits', expCube='/lscratch/kocevski/18067689/ltcube_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/18067689/Model_4FGL_J1855.8-2028_daily_bin2118.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1855.8-2028' 4FGL J1855.8-2028 Spectrum: PowerLaw 1414 Prefactor: 3.407e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-14) 1415 Index: 2.154e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 1416 Scale: 2.454e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/18067689/ft1_filtered_4FGL_J1855.8-2028_daily_bin2118.fits Spacecraft file(s): /lscratch/kocevski/18067689/ft2_4FGL_J1855.8-2028_daily_bin2118.fits Exposure map: /lscratch/kocevski/18067689/expmap_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.fits Exposure cube: /lscratch/kocevski/18067689/ltcube_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/18067689/Model_4FGL_J1855.8-2028_daily_bin2118.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) = 34155.5240886 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 34155.5145994 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'norm ' 25.631 1.0000 .0000 .10000E+07 2 'norm ' 20.588 1.0000 .0000 .10000E+07 3 'Prefactor ' .47018E-07 1.0000 .0000 .10000E+07 4 'norm ' .21649E-08 1.0000 .0000 .10000E+07 5 'norm ' 1.0746 1.0000 .0000 .10000E+07 6 'Prefactor ' .10800E-05 1.0000 .0000 .10000E+07 7 'norm ' .59341E-07 1.0000 .0000 .10000E+07 8 'Prefactor ' 56.943 1.0000 .0000 .10000E+07 9 'Prefactor ' .62728E-08 1.0000 .0000 .10000E+07 10 'norm ' 6.8244 1.0000 .0000 .10000E+07 11 'norm ' .61562E-07 1.0000 .0000 .10000E+07 12 'Prefactor ' .17986E-07 1.0000 .0000 .10000E+07 13 'Prefactor ' .55511E-09 1.0000 .0000 .10000E+07 14 'Prefactor ' 62.974 1.0000 .0000 .10000E+07 15 'Normalizat' .55230 1.0000 .10000E-01 10.000 16 'Prefactor ' 1.1092 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .1839E+06 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. FCN= 34155.51 FROM MIGRAD STATUS=CONVERGED 118 CALLS 1349 TOTAL EDM= .31E-10 STRATEGY=1 ERROR MATRIX UNCERTAINTY= 2.3% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 norm 25.629 3.8487 -.25808E-07 .12029E-02 2 norm 20.583 1.0356 .15057E-08 -.17641E-02 3 Prefactor .27756E-09 69.987 -.88272E-06** at limit ** 4 norm .0000 2.1249 .39052E-08** at limit ** 5 norm 1.0746 .93414 -.25057E-06 .56021E-02 6 Prefactor .44409E-09 62.357 .28476E-06** at limit ** 7 norm .0000 10.831 -.13498E-07** at limit ** 8 Prefactor 56.896 1.3475 -.47200E-08 .45738E-02 9 Prefactor .0000 5.6341 -.94431E-07** at limit ** 10 norm 6.8245 6.9341 .25531E-07 .45748E-04 11 norm .0000 4.0623 -.25285E-06** at limit ** 12 Prefactor .0000 5.6915 -.20982E-06** at limit ** 13 Prefactor .11102E-09 40.223 .11233E-05** at limit ** 14 Prefactor 62.964 2.3092 -.13873E-07 .42219E-02 15 Normalizat .55297 .31686 .15511E-04 -.16100E-05 16 Prefactor 1.1092 .28689E-01 -.88163E-06 .22727E-03 ERR DEF= .500 Final values: norm = 25.6293 norm = 20.5831 Prefactor = 2.77556e-10 norm = 0 norm = 1.07462 Prefactor = 4.44089e-10 norm = 0 Prefactor = 56.8959 Prefactor = 0 norm = 6.82448 norm = 0 Prefactor = 0 Prefactor = 1.11022e-10 Prefactor = 62.9645 Normalizat = 0.552971 Prefactor = 1.10916 ********** ** 18 **HESSE ********** FCN= 34155.51 FROM HESSE STATUS=OK 231 CALLS 1580 TOTAL EDM= .31E-08 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 norm 25.629 3.8753 .19756E-03 -1.5607 2 norm 20.583 24.392 .22046E-03 -1.5617 3 Prefactor .27756E-09 70.046 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 4 norm .0000 2.1243 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 5 norm 1.0746 .97891 .11672E-02 -1.5687 6 Prefactor .44409E-09 62.348 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm .0000 10.827 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 8 Prefactor 56.896 50.938 .13253E-03 -1.5557 9 Prefactor .0000 5.6244 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 10 norm 6.8245 7.0412 .38384E-03 -1.5656 11 norm .0000 4.0691 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 12 Prefactor .0000 5.6660 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 13 Prefactor .11102E-09 40.483 .42118E-03 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 14 Prefactor 62.964 42.025 .12602E-03 -1.5549 15 Normalizat .55297 .38323 .40283 -1.1002 16 Prefactor 1.1092 .32083E-01 .37247E-01 -.89174 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 3.11885e-09 Minuit parameter uncertainties: 1 3.8753 2 24.3924 3 0.000286888 4 1.26431e-06 5 0.978908 6 0.000335909 7 5.24684e-07 8 50.938 9 5.03394e-06 10 7.04122 11 2.03696e-05 12 8.02626e-06 13 0.000128041 14 42.0256 15 0.38508 16 0.0320832 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 34155.5145969 Extracting fit parameters... 4FGL J1855.8-2028 Spectrum: PowerLaw 1414 Prefactor: 2.776e-10 2.869e-04 0.000e+00 1.000e+06 ( 1.000e-14) 1415 Index: 2.154e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 1416 Scale: 2.454e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 1792 Prefactor: 1.109e+00 3.208e-02 0.000e+00 1.000e+01 ( 1.000e+00) 1793 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 1794 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 1778 Normalization: 5.530e-01 3.851e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): 0.00 Ra Dec: 283.975 -20.469 Photon Flux Upper Limit: 1.42305722697e-07 ph cm-2 s-1 Energy Flux Upper Limit: 0.0108045814677 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/18067689/likelihoodResults_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.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): 0 logL (Free Index) = 34155.5214546 delta logL = -0.00685775149032 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 34155.5145977 delta logL = -8.41093424242e-07 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' .29569E-04 1.0000 .0000 .10000E+07 2 'Index ' 1.4978 1.0000 .0000 10.000 3 'Normalizat' .55321 1.0000 .10000E-01 10.000 4 'Prefactor ' 1.1092 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .1839E+06 .2000E-04 ********** MACHINE ACCURACY LIMITS FURTHER IMPROVEMENT. MIGRAD MINIMIZATION HAS CONVERGED. FCN= 34155.28 FROM MIGRAD STATUS=CONVERGED 279 CALLS 436 TOTAL EDM= .41E-04 STRATEGY=1 ERROR MATRIX UNCERTAINTY= 2.6% EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor .96034E-08 .61545E-06 .0000 ** at limit ** 2 Index 10.0000 9.4959 .0000 ** at limit ** 3 Normalizat .50479 .26785 .0000 .21883E-02 4 Prefactor 1.1103 .25502E-01 .0000 .29114E-01 ERR DEF= .500 Final values: Prefactor = 9.60343e-09 Index = 10 Normalizat = 0.504785 Prefactor = 1.11032 ********** ** 18 **HESSE ********** FCN= 34155.28 FROM HESSE STATUS=NOT POSDEF 41 CALLS 477 TOTAL EDM= .21E+03 STRATEGY= 1 ERR MATRIX NOT POS-DEF EXT PARAMETER APPROXIMATE INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor .96034E-08 .55791E-06 .74901E-06 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 2 Index 10.0000 6.6591 .50000 1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 3 Normalizat .50479 .36814 .40295 -1.1219 4 Prefactor 1.1103 .19478E-01 .37249E-01 -.89138 ERR DEF= .500 Minuit fit quality: 2 estimated distance: 211.341 Minuit parameter uncertainties: 1 1.46192e-07 2 0.00104286 3 0.369935 4 0.0194784 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) = 34155.2810169 delta logL = 0.233579995111 Extracting fit parameters... 4FGL J1855.8-2028 Spectrum: PowerLaw 1414 Prefactor: 9.603e-09 1.462e-07 0.000e+00 1.000e+06 ( 1.000e-14) 1415 Index: 1.000e+01 1.043e-03 0.000e+00 1.000e+01 (-1.000e+00) 1416 Scale: 2.454e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 1792 Prefactor: 1.110e+00 1.948e-02 0.000e+00 1.000e+01 ( 1.000e+00) 1793 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 1794 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 1778 Normalization: 5.048e-01 3.699e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): 0.00 Ra Dec: 283.975 -20.469 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/18067689/cmap_HighResolution_788313601_788572801_4FGL_J1855.8-2028_daily_bin2118.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='1.08e-02', job_status='DONE', photon_flux_upper_limit='1.42e-07', time_completed='2025-12-28 02:06:53.127521', job_id='18067689', GAL2='1.11', fit_tolerance='1e-08', EG2='0.50', EG='0.55', time_epoch_completed='1766916413.13', return_code2='102', ts='0.00', comment='SUCCESS', return_code='0', GAL='1.11', dlogl='2.34e-01', ts2='0.50', photon_index_error='0.00', photon_index='2.15' WHERE bin_id='2118' AND source_name='4FGL J1855.8-2028' AND cadence='daily'; Database successfully updated. Analysis Complete. Sun Dec 28 02:06:53 PST 2025