/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 = 17429 number of fields = 31 RA_SUN column already exists. File will not be modified. Done. Performing analysis on: 4FGL_J1518.0-2731_weekly_bin942 RA = 229.512, Dec = -27.5313 tmin = 808704001, tmax = 809308801 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='35815863', job_status='RUN', time_executed='2026-08-25 11:59:10.835792', time_epoch_executed='1787684350.84' WHERE source_name='4FGL J1518.0-2731' and cadence='weekly' and bin_id='942' Database successfully updated. Done. Creating custom output directory: /lscratch/kocevski/35815863 Creating custom pfile directory: /lscratch/kocevski/35815863/pfiles/ Retrieving the FT1 file... Issuing command: datacat find --group FT1 --filter 'nMetStop>=808704001.0 && nMetStart<809308801.0' /Data/Flight/Reprocess/P305 Issuing command: datacat find --group FT1 --filter 'nMetStart>564945418 && nMetStop>=808704001.0 && nMetStart<809308801.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Checksum keywords updated successfully. Merged file saved to: /lscratch/kocevski/35815863/ft1_4FGL_J1518.0-2731_weekly_bin942.fits Retrieving the FT1 file... Issuing command: datacat find --group FT2 --filter 'nMetStop>=808704001.0 && nMetStart<809308801.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Merged file saved to: /lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits Selecting the photons: time -p gtselect infile=/lscratch/kocevski/35815863/ft1_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815863/ft1_filteredMKT_4FGL_J1518.0-2731_weekly_bin942.fits ra=229.512 dec=-27.5313 rad=12.0 tmin=808704001.0 tmax=809308801.0 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 7.82 user 4.86 sys 0.23 Adding sun position to ft2 file: /sdf/group/fermi/g/LCRepository/Repository/bin/sunpos /lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits Selecting the good time intervals: time -p gtmktime scfile=/lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.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/35815863/ft1_filteredMKT_4FGL_J1518.0-2731_weekly_bin942.fits evtable="EVENTS" outfile="/lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.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 0.71 user 0.23 sys 0.13 Number of photons that the gtmktime cut: 3947 Generating the livetime cube: time -p gtltcube evfile="/lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits" evtable="EVENTS" scfile=/lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits sctable="SC_DATnumber of points = 17429 number of fields = 31 RA_SUN column already exists. File will not be modified. Done. Performing analysis on: 4FGL_J1518.0-2731_weekly_bin942 RA = 229.512, Dec = -27.5313 tmin = 808704001, tmax = 809308801 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='35815959', job_status='RUN', time_executed='2026-08-25 12:00:13.059629', time_epoch_executed='1787684413.06' WHERE source_name='4FGL J1518.0-2731' and cadence='weekly' and bin_id='942' Database successfully updated. Done. Creating custom output directory: /lscratch/kocevski/35815959 Creating custom pfile directory: /lscratch/kocevski/35815959/pfiles/ Retrieving the FT1 file... Issuing command: datacat find --group FT1 --filter 'nMetStop>=808704001.0 && nMetStart<809308801.0' /Data/Flight/Reprocess/P305 Issuing command: datacat find --group FT1 --filter 'nMetStart>564945418 && nMetStop>=808704001.0 && nMetStart<809308801.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Checksum keywords updated successfully. Merged file saved to: /lscratch/kocevski/35815959/ft1_4FGL_J1518.0-2731_weekly_bin942.fits Retrieving the FT1 file... Issuing command: datacat find --group FT2 --filter 'nMetStop>=808704001.0 && nMetStart<809308801.0' /Data/Flight/Level1/LPA Retrieving 108 files... Done. Merging files... Merged file saved to: /lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits Selecting the photons: time -p gtselect infile=/lscratch/kocevski/35815959/ft1_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815959/ft1_filteredMKT_4FGL_J1518.0-2731_weekly_bin942.fits ra=229.512 dec=-27.5313 rad=12.0 tmin=808704001.0 tmax=809308801.0 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 6.03 user 5.35 sys 0.25 Adding sun position to ft2 file: /sdf/group/fermi/g/LCRepository/Repository/bin/sunpos /lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits Selecting the good time intervals: time -p gtmktime scfile=/lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.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/35815959/ft1_filteredMKT_4FGL_J1518.0-2731_weekly_bin942.fits evtable="EVENTS" outfile="/lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.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 0.85 user 0.24 sys 0.12 Number of photons that the gtmktime cut: 3947 Generating the livetime cube: time -p gtltcube evfile="/lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits" evtable="EVENTS" scfile=/lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits sctable="SC_DATA" outfile=/lscratch/kocevski/35815863/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits .....................! real 19.96 user 19.26 sys 0.24 Generating the exposure map: time -p gtexpmap evfile=/lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits evtable="EVENTS" scfile=/lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits sctable="SC_DATA" expcube=/lscratch/kocevski/35815863/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815863/expmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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/35815863/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits .....................! real 77.47 user 72.23 sys 4.62 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 FHES J1626.9-2431 in ROI with RadialGaussian spatial model. Added 222 point sources and 1 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 J1518.0-2731 @ 229.512 -27.5313 Creating the counts map: time -p gtbin evfile=/lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits scfile=/lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815863/cmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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=229.512 yref=-27.5313 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 0.25 sys 0.14 Creating the high resolution counts map: time -p gtbin evfile=/lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits scfile=/lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815863/cmap_HighResolution_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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=229.512 yref=-27.5313 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 0.85 user 0.25 sys 0.15 Computing the diffuse response: time -p gtdiffrsp evfile=/lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits evtable="EVENTS" scfile=/lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits sctable="SC_DATA" srcmdl=/lscratch/kocevski/35815863/Model_4FGL_J1518.0-2731_weekly_bin942.xml irfs="P8A" outfile=/lscratch/kocevski/35815959/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits .....................! real 21.89 user 20.82 sys 0.24 Generating the exposure map: time -p gtexpmap evfile=/lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits evtable="EVENTS" scfile=/lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits sctable="SC_DATA" expcube=/lscratch/kocevski/35815959/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815959/expmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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/35815959/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits .....................! real 81.27 user 75.48 sys 4.84 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 FHES J1626.9-2431 in ROI with RadialGaussian spatial model. Added 222 point sources and 1 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 J1518.0-2731 @ 229.512 -27.5313 Creating the counts map: time -p gtbin evfile=/lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits scfile=/lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815959/cmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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=229.512 yref=-27.5313 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 0.76 user 0.27 sys 0.10 Creating the high resolution counts map: time -p gtbin evfile=/lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits scfile=/lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits outfile=/lscratch/kocevski/35815959/cmap_HighResolution_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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=229.512 yref=-27.5313 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 0.75 user 0.27 sys 0.12 Computing the diffuse response: time -p gtdiffrsp evfile=/lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits evtable="EVENTS" scfile=/lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits sctable="SC_DATA" srcmdl=/lscratch/kocevski/35815959/Model_4FGL_J1518.0-2731_weekly_bin942.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 FHES J1626.9-2431 adding source GAL_V02 Working on... /lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits.....................! real 161.87 user 159.35 sys 1.12 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits', '/lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits', expMap='/lscratch/kocevski/35815863/expmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits', expCube='/lscratch/kocevski/35815863/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/35815863/Model_4FGL_J1518.0-2731_weekly_bin942.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1518.0-2731' 4FGL J1518.0-2731 Spectrum: PowerLaw 351 Prefactor: 2.846e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-13) 352 Index: 2.052e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 353 Scale: 2.284e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/35815863/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits Spacecraft file(s): /lscratch/kocevski/35815863/ft2_4FGL_J1518.0-2731_weekly_bin942.fits Exposure map: /lscratch/kocevski/35815863/expmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits Exposure cube: /lscratch/kocevski/35815863/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/35815863/Model_4FGL_J1518.0-2731_weekly_bin942.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) = 39712.7198959 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 39712.6644343 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' 12.850 1.0000 .0000 .10000E+07 2 'Prefactor ' .13507E-04 1.0000 .0000 .10000E+07 3 'Prefactor ' 19.391 1.0000 .0000 .10000E+07 4 'Prefactor ' .26546E-02 1.0000 .0000 .10000E+07 5 'Prefactor ' .86793E-04 1.0000 .0000 .10000E+07 6 'Prefactor ' .16084E-05 1.0000 .0000 .10000E+07 7 'norm ' .82945 1.0000 .0000 .10000E+07 8 'Prefactor ' 1.2207 1.0000 .0000 .10000E+07 9 'Prefactor ' .21515E-04 1.0000 .0000 .10000E+07 10 'norm ' 1.4022 1.0000 .0000 .10000E+07 11 'norm ' 8.1064 1.0000 .0000 .10000E+07 12 'norm ' 1.2038 1.0000 .0000 .10000E+07 13 'Prefactor ' 1.6633 1.0000 .0000 .10000E+07 14 'norm ' 2.4227 1.0000 .0000 .10000E+07 15 'Prefactor ' 10.600 1.0000 .0000 .10000E+07 16 'norm ' .14396E-03 1.0000 .0000 .10000E+07 17 'Prefactor ' .70890E-02 1.0000 .0000 .10000E+07 18 'Normalizat' 1.4243 1.0000 .10000E-01 10.000 19 'Prefactor ' .90607 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .7590E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. MACHINE ACCURACY LIMITS FURTHER IMPROVEMENT. MIGRAD MINIMIZATION HAS CONVERGED. FCN= 39712.66 FROM MIGRAD STATUS=CONVERGED 519 CALLS 1577 TOTAL EDM= .46E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor 12.515 15.836 .0000 .17803E-01 2 Prefactor .12768E-08 9.4479 .0000 ** at limit ** 3 Prefactor 19.407 9.2545 .0000 -.36887E-01 4 Prefactor .14988E-08 21.244 .0000 ** at limit ** 5 Prefactor .49960E-09 3.5811 .0000 ** at limit ** 6 Prefactor .12212E-08 6.0084 .0000 ** at limit ** 7 norm .82975 .36150 .0000 .24741E-01 8 Prefactor 1.2194 2.8766 .0000 .36393E-01 9 Prefactor .0000 2.5877 .0000 ** at limit ** 10 norm 1.4040 2.5725 .0000 1.1539 11 norm 8.1012 8.7796 .0000 .12436E-01 12 norm 1.2038 .35194 .0000 .18355E-01 13 Prefactor 1.6640 2.6422 .0000 .83729 14 norm 2.4224 1.1920 .0000 -.13962E-01 15 Prefactor 10.643 11.093 .0000 .29793E-01 16 norm .12157E-07 1.5016 .0000 ** at limit ** 17 Prefactor .10028E-05 .45075 .0000 ** at limit ** 18 Normalizat 1.4244 .13827 .0000 .55728E-04 19 Prefactor .90601 .35996E-01 .0000 -.27443E-03 ERR DEF= .500 Final values: Prefactor = 12.5152 Prefactor = 1.27676e-09 Prefactor = 19.4067 Prefactor = 1.4988e-09 Prefactor = 4.996e-10 Prefactor = 1.22125e-09 norm = 0.829752 Prefactor = 1.21943 Prefactor = 0 norm = 1.40403 norm = 8.10124 norm = 1.20384 Prefactor = 1.66405 norm = 2.42236 Prefactor = 10.6427 norm = 1.21569e-08 Prefactor = 1.00281e-06 Normalizat = 1.42444 Prefactor = 0.90601 ********** ** 18 **HESSE ********** FCN= 39712.66 FROM HESSE STATUS=OK 284 CALLS 1861 TOTAL EDM= .40E-07 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor 12.515 15.831 .11167E-04 -1.5637 2 Prefactor .12768E-08 9.4683 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 3 Prefactor 19.407 9.2656 .90869E-05 -1.5620 4 Prefactor .14988E-08 21.250 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 5 Prefactor .49960E-09 3.5969 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 6 Prefactor .12212E-08 6.0176 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm .82975 .35876 .75988E-05 -1.5690 8 Prefactor 1.2194 2.8152 .40818E-04 -1.5686 9 Prefactor .0000 2.5998 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 10 norm 1.4040 2.5566 .18314E-03 -1.5684 11 norm 8.1012 8.7784 .14076E-04 -1.5651 12 norm 1.2038 .35011 .61073E-05 -1.5686 13 Prefactor 1.6640 2.6144 .16350E-03 -1.5682 14 norm 2.4224 1.1897 .14570E-04 -1.5677 15 Prefactor 10.643 11.095 .12300E-04 -1.5643 16 norm .12157E-07 1.4807 .91624E-02 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor .10028E-05 .57926 .35882E-02 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 18 Normalizat 1.4244 .15759 .44867E-03 -.79924 19 Prefactor .90601 .41367E-01 .14314E-03 -.95931 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 3.98743e-08 Minuit parameter uncertainties: 1 15.8312 2 0.000221724 3 9.26559 4 0.000359468 5 8.60318e-05 6 0.000171451 7 0.358757 8 2.81519 9 6.29764e-06 10 2.55663 11 8.77846 12 0.350107 13 2.61443 14 1.18971 15 11.0948 16 0.000268239 17 0.00152431 18 0.157641 19 0.0413685 R3_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 FHES J1626.9-2431 adding source GAL_V02 Working on... /lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits.....................! real 172.37 user 169.69 sys 0.82 Creating the likelihood object... obs = UnbinnedObs('/lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits', '/lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits', expMap='/lscratch/kocevski/35815959/expmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits', expCube='/lscratch/kocevski/35815959/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits', irfs='P8R3_SOURCE_V2') like = UnbinnedAnalysis(obs, '/lscratch/kocevski/35815959/Model_4FGL_J1518.0-2731_weekly_bin942.xml', optimizer='MINUIT') Using source of interest name: '4FGL J1518.0-2731' 4FGL J1518.0-2731 Spectrum: PowerLaw 351 Prefactor: 2.846e+00 0.000e+00 0.000e+00 1.000e+06 ( 1.000e-13) 352 Index: 2.052e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 353 Scale: 2.284e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed Likelihood Fit Parameters: Event file(s): /lscratch/kocevski/35815959/ft1_filtered_4FGL_J1518.0-2731_weekly_bin942.fits Spacecraft file(s): /lscratch/kocevski/35815959/ft2_4FGL_J1518.0-2731_weekly_bin942.fits Exposure map: /lscratch/kocevski/35815959/expmap_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits Exposure cube: /lscratch/kocevski/35815959/ltcube_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.fits IRFs: P8R3_SOURCE_V2 Source model file: /lscratch/kocevski/35815959/Model_4FGL_J1518.0-2731_weekly_bin942.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) = 39712.7198959 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 39712.6644343 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' 12.850 1.0000 .0000 .10000E+07 2 'Prefactor ' .13507E-04 1.0000 .0000 .10000E+07 3 'Prefactor ' 19.391 1.0000 .0000 .10000E+07 4 'Prefactor ' .26546E-02 1.0000 .0000 .10000E+07 5 'Prefactor ' .86793E-04 1.0000 .0000 .10000E+07 6 'Prefactor ' .16084E-05 1.0000 .0000 .10000E+07 7 'norm ' .82945 1.0000 .0000 .10000E+07 8 'Prefactor ' 1.2207 1.0000 .0000 .10000E+07 9 'Prefactor ' .21515E-04 1.0000 .0000 .10000E+07 10 'norm ' 1.4022 1.0000 .0000 .10000E+07 11 'norm ' 8.1064 1.0000 .0000 .10000E+07 12 'norm ' 1.2038 1.0000 .0000 .10000E+07 13 'Prefactor ' 1.6633 1.0000 .0000 .10000E+07 14 'norm ' 2.4227 1.0000 .0000 .10000E+07 15 'Prefactor ' 10.600 1.0000 .0000 .10000E+07 16 'norm ' .14396E-03 1.0000 .0000 .10000E+07 17 'Prefactor ' .70890E-02 1.0000 .0000 .10000E+07 18 'Normalizat' 1.4243 1.0000 .10000E-01 10.000 19 'Prefactor ' .90607 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .7590E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. MACHINE ACCURACY LIMITS FURTHER IMPROVEMENT. MIGRAD MINIMIZATION HAS CONVERGED. FCN= 39712.66 FROM MIGRAD STATUS=CONVERGED 519 CALLS 1577 TOTAL EDM= .46E-05 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor 12.515 15.836 .0000 .17803E-01 2 Prefactor .12768E-08 9.4479 .0000 ** at limit ** 3 Prefactor 19.407 9.2545 .0000 -.36887E-01 4 Prefactor .14988E-08 21.244 .0000 ** at limit ** 5 Prefactor .49960E-09 3.5811 .0000 ** at limit ** 6 Prefactor .12212E-08 6.0084 .0000 ** at limit ** 7 norm .82975 .36150 .0000 .24741E-01 8 Prefactor 1.2194 2.8766 .0000 .36393E-01 9 Prefactor .0000 2.5877 .0000 ** at limit ** 10 norm 1.4040 2.5725 .0000 1.1539 11 norm 8.1012 8.7796 .0000 .12436E-01 12 norm 1.2038 .35194 .0000 .18355E-01 13 Prefactor 1.6640 2.6422 .0000 .83729 14 norm 2.4224 1.1920 .0000 -.13962E-01 15 Prefactor 10.643 11.093 .0000 .29793E-01 16 norm .12157E-07 1.5016 .0000 ** at limit ** 17 Prefactor .10028E-05 .45075 .0000 ** at limit ** 18 Normalizat 1.4244 .13827 .0000 .55728E-04 19 Prefactor .90601 .35996E-01 .0000 -.27443E-03 ERR DEF= .500 Final values: Prefactor = 12.5152 Prefactor = 1.27676e-09 Prefactor = 19.4067 Prefactor = 1.4988e-09 Prefactor = 4.996e-10 Prefactor = 1.22125e-09 norm = 0.829752 Prefactor = 1.21943 Prefactor = 0 norm = 1.40403 norm = 8.10124 norm = 1.20384 Prefactor = 1.66405 norm = 2.42236 Prefactor = 10.6427 norm = 1.21569e-08 Prefactor = 1.00281e-06 Normalizat = 1.42444 Prefactor = 0.90601 ********** ** 18 **HESSE ********** FCN= 39712.66 FROM HESSE STATUS=OK 284 CALLS 1861 TOTAL EDM= .40E-07 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor 12.515 15.831 .11167E-04 -1.5637 2 Prefactor .12768E-08 9.4683 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 3 Prefactor 19.407 9.2656 .90869E-05 -1.5620 4 Prefactor .14988E-08 21.250 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 5 Prefactor .49960E-09 3.5969 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 6 Prefactor .12212E-08 6.0176 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 7 norm .82975 .35876 .75988E-05 -1.5690 8 Prefactor 1.2194 2.8152 .40818E-04 -1.5686 9 Prefactor .0000 2.5998 .84235E-04 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 10 norm 1.4040 2.5566 .18314E-03 -1.5684 11 norm 8.1012 8.7784 .14076E-04 -1.5651 12 norm 1.2038 .35011 .61073E-05 -1.5686 13 Prefactor 1.6640 2.6144 .16350E-03 -1.5682 14 norm 2.4224 1.1897 .14570E-04 -1.5677 15 Prefactor 10.643 11.095 .12300E-04 -1.5643 16 norm .12157E-07 1.4807 .91624E-02 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 17 Prefactor .10028E-05 .57926 .35882E-02 -1.5708 WARNING - - ABOVE PARAMETER IS AT LIMIT. 18 Normalizat 1.4244 .15759 .44867E-03 -.79924 19 Prefactor .90601 .41367E-01 .14314E-03 -.95931 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 3.98743e-08 Minuit parameter uncertainties: 1 15.8312 2 0.000221724 3 9.26559 4 0.000359468 5 8.60318e-05 6 0.000171451 7 0.358757 8 2.81519 9 6.29764e-06 10 2.55663 11 8.77846 12 0.350107 13 2.61443 14 1.18971 15 11.0948 16 0.000268239 17 0.00152431 18 0.157641 19 0.0413685 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 39712.6640972 Extracting fit parameters... 4FGL J1518.0-2731 Spectrum: PowerLaw 351 Prefactor: 1.664e+00 2.614e+00 0.000e+00 1.000e+06 ( 1.000e-13) 352 Index: 2.052e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 353 Scale: 2.284e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 756 Prefactor: 9.060e-01 4.137e-02 0.000e+00 1.000e+01 ( 1.000e+00) 757 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 758 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 751 Normalization: 1.424e+00 1.576e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): 0.53 Ra Dec: 229.512 -27.531 Photon Flux Upper Limit: 4.52129455592e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00340537190121 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/35815863/likelihoodResults_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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) = 39712.6622052 delta logL = 0.00189197427972 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 39712.6606163 delta logL = 0.00348095648951 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' 1.4475 1.0000 .0000 .10000E+07 2 'Index ' 2.2168 1.0000 .0000 10.000 3 'Normalizat' 1.4218 1.0000 .10000E-01 10.000 4 'Prefactor ' .90629 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .7590E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. MACHINE ACCURACY LIMITS FURTHER IMPROVEMENT. MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 39712.66 FROM MIGRAD STATUS=CONVERGED 102 CALLS 268 TOTAL EDM= .11E-09 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor 1.4443 5.6846 .35244E-04 .21011E-02 2 Index 2.2208 2.9882 .24147E-02 -.79095E-06 3 Normalizat 1.4217 .16572 .44903E-03 -.81019E-05 4 Prefactor .90630 .41435E-01 .14312E-03 -.10168E-04 ERR DEF= .500 Final values: Prefactor = 1.44429 Index = 2.22078 Normalizat = 1.4217 Prefactor = 0.906301 ********** ** 18 **HESSE ********** FCN= 39712.66 FROM HESSE STATUS=OK 25 CALLS 293 TOTAL EDM= .28E-12 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor 1.4443 4.5248 .70489E-05 -1.5684 2 Index 2.2208 2.4754 .96589E-04 -.58938 3 Normalizat 1.4217 .16200 .17961E-04 -.80003 4 Prefactor .90630 .41213E-01 .57248E-05 -.95921 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 2.81467e-13 Minuit parameter uncertainties: 1 4.52478 2 2.65161 3 0.162054 4 0.0412143 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 0 logL (Free Index) = 39712.6606142 delta logL = 0.0034829856304 Extracting fit parameters... 4FGL J1518.0-2731 Spectrum: PowerLaw 351 Prefactor: 1.444e+00 4.525e+00 0.000e+00 1.000e+06 ( 1.000e-13) 352 Index: 2.221e+00 2.652e+00 0.000e+00 1.000e+01 (-1.000e+00) 353 Scale: 2.284e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 756 Prefactor: 9.063e-01 4.121e-02 0.000e+00 1.000e+01 ( 1.000e+00) 757 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 758 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 751 Normalization: 1.422e+00 1.621e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): 0.53 Ra Dec: 229.512 -27.531 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/35815863/cmap_HighResolution_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='3.41e-03', job_status='DONE', photon_flux_upper_limit='4.52e-08', time_completed='2026-08-25 12:18:51.663707', job_id='35815863', GAL2='0.91', fit_tolerance='1e-08', EG2='1.42', EG='1.42', time_epoch_completed='1787685531.66', return_code2='0', ts='0.53', comment='SUCCESS', return_code='0', GAL='0.91', dlogl='3.48e-03', ts2='0.53', photon_index_error='0.00', photon_index='2.05' WHERE bin_id='942' AND source_name='4FGL J1518.0-2731' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Aug 25 12:18:51 PDT 2026 Done. MINUIT Return Code (Fixed Index): 0 logL (Fixed Index) = 39712.6640972 Extracting fit parameters... 4FGL J1518.0-2731 Spectrum: PowerLaw 351 Prefactor: 1.664e+00 2.614e+00 0.000e+00 1.000e+06 ( 1.000e-13) 352 Index: 2.052e+00 0.000e+00 0.000e+00 1.000e+01 (-1.000e+00) fixed 353 Scale: 2.284e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 756 Prefactor: 9.060e-01 4.137e-02 0.000e+00 1.000e+01 ( 1.000e+00) 757 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 758 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 751 Normalization: 1.424e+00 1.576e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Fixed Index): 0.53 Ra Dec: 229.512 -27.531 Photon Flux Upper Limit: 4.52129455592e-08 ph cm-2 s-1 Energy Flux Upper Limit: 0.00340537190121 MeV cm-2 s-1 Saving results to: /lscratch/kocevski/35815959/likelihoodResults_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.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) = 39712.6622052 delta logL = 0.00189197427972 Fit tolerance = 0.0001 Performing likelihood fit... Done. MINUIT Return Code (Free Index): 102 logL (Free Index) = 39712.6606163 delta logL = 0.00348095648951 Fit tolerance = 1e-08 Performing likelihood fit... ********** ** 14 **SET NOWARN ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 'Prefactor ' 1.4475 1.0000 .0000 .10000E+07 2 'Index ' 2.2168 1.0000 .0000 10.000 3 'Normalizat' 1.4218 1.0000 .10000E-01 10.000 4 'Prefactor ' .90629 1.0000 .0000 10.000 ********** ** 15 **SET ERR .5000 ********** ********** ** 16 **SET GRAD 1.000 ********** ********** ** 17 **MINIMIZE .7590E+05 .2000E-04 ********** MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. MACHINE ACCURACY LIMITS FURTHER IMPROVEMENT. MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. FCN= 39712.66 FROM MIGRAD STATUS=CONVERGED 102 CALLS 268 TOTAL EDM= .11E-09 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Prefactor 1.4443 5.6846 .35244E-04 .21011E-02 2 Index 2.2208 2.9882 .24147E-02 -.79095E-06 3 Normalizat 1.4217 .16572 .44903E-03 -.81019E-05 4 Prefactor .90630 .41435E-01 .14312E-03 -.10168E-04 ERR DEF= .500 Final values: Prefactor = 1.44429 Index = 2.22078 Normalizat = 1.4217 Prefactor = 0.906301 ********** ** 18 **HESSE ********** FCN= 39712.66 FROM HESSE STATUS=OK 25 CALLS 293 TOTAL EDM= .28E-12 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 Prefactor 1.4443 4.5248 .70489E-05 -1.5684 2 Index 2.2208 2.4754 .96589E-04 -.58938 3 Normalizat 1.4217 .16200 .17961E-04 -.80003 4 Prefactor .90630 .41213E-01 .57248E-05 -.95921 ERR DEF= .500 Minuit fit quality: 3 estimated distance: 2.81467e-13 Minuit parameter uncertainties: 1 4.52478 2 2.65161 3 0.162054 4 0.0412143 shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Done. MINUIT Return Code (Free Index): 0 logL (Free Index) = 39712.6606142 delta logL = 0.0034829856304 Extracting fit parameters... 4FGL J1518.0-2731 Spectrum: PowerLaw 351 Prefactor: 1.444e+00 4.525e+00 0.000e+00 1.000e+06 ( 1.000e-13) 352 Index: 2.221e+00 2.652e+00 0.000e+00 1.000e+01 (-1.000e+00) 353 Scale: 2.284e+03 0.000e+00 3.000e+01 5.000e+05 ( 1.000e+00) fixed GAL_V02 Spectrum: PowerLaw 756 Prefactor: 9.063e-01 4.121e-02 0.000e+00 1.000e+01 ( 1.000e+00) 757 Index: 0.000e+00 0.000e+00 -1.000e+00 1.000e+00 ( 1.000e+00) fixed 758 Scale: 1.000e+02 0.000e+00 5.000e+01 2.000e+02 ( 1.000e+00) fixed EG_v02 Spectrum: FileFunction 751 Normalization: 1.422e+00 1.621e-01 1.000e-02 1.000e+01 ( 1.000e+00) TS (Free Index): 0.53 Ra Dec: 229.512 -27.531 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/35815959/cmap_HighResolution_808704001_809308801_4FGL_J1518.0-2731_weekly_bin942.png Cleaning up... ** Nuclear option initiated! ** Updating database... UPDATE lightcurve_data_v2 SET energy_flux_upper_limit='3.41e-03', job_status='DONE', photon_flux_upper_limit='4.52e-08', time_completed='2026-08-25 12:21:25.197730', job_id='35815959', GAL2='0.91', fit_tolerance='1e-08', EG2='1.42', EG='1.42', time_epoch_completed='1787685685.2', return_code2='0', ts='0.53', comment='SUCCESS', return_code='0', GAL='0.91', dlogl='3.48e-03', ts2='0.53', photon_index_error='0.00', photon_index='2.05' WHERE bin_id='942' AND source_name='4FGL J1518.0-2731' AND cadence='weekly'; Database successfully updated. Analysis Complete. Tue Aug 25 12:21:25 PDT 2026