Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.48
Process Start Time: Fri Sep 29 23:31:36 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1183217
======================================================================
Trigger: 01183217 Segment: 000
BAT Trigger Time: 712927462.848 [s; MET]
Trigger Stop: 712927471.04 [s; MET]
UTC: 2023-08-05T11:23:51.076980 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 207.746617283295 Dec: 31.1848044696489 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.49
Image Trigger?: NO
Rate S/N Ratio: 10.6301458127346 [ if not an image trigger ]
Image S/N Ratio: 8.49
Analysis Position: [ source = BAT ]
RA: 207.746617283295 Dec: 31.1848044696489 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 207.749701523998 Dec: 31.1945940784244 [deg; J2000]
{ 13h 50m 59.9s , +31d 11' 40.5" }
+/- 1.90434194074106 [arcmin] (estimated 90% radius based on SNR)
+/- 0.802160103944459 [arcmin] (formal 1-sigma fit error)
SNR: 12.1194458449411
Angular difference between the analysis and refined position is 0.608335 arcmin
Partial Coding Fraction: 0.4179688 [ including projection effects ]
Duration
T90: 114.519999980927 +/- 23.3490886469143
Measured from: -11.7520000934601
to: 102.767999887466 [s; relative to TRIGTIME]
T50: 38.5359998941422 +/- 18.5921291415388
Measured from: 6.74000000953674
to: 45.2759999036789 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -17.6640000343323
to: -16.6640000343323 [s; relative to TRIGTIME]
Total Fluence
Measured from: -17.6560000181198
to: 109.307999968529 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.707860 1.023557 0.854629 0.291424
0.104043 0.109474 0.097939 0.085297 [error]
Peak 0.008860 0.046508 0.069512 0.023300
0.010280 0.011072 0.010953 0.008762 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 126.964 -17.656 109.308
T90 114.520 -11.752 102.768
T50 38.536 6.740 45.276
Peak 1.000 -17.664 -16.664
====== Spectral Analysis Summary =====================================
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^{Ph_index}
Ph_90err : 90% error of the photon index
Epeak : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedo
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.409 -0.195 0.197 - - - 1.55e-03 -1.75e-04 1.74e-04 53.780 57
CPL -1.355 -0.406 0.656 612.785 -612.785 -612.785 1.65e-03 -2.69e-04 8.07e-05 53.820 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -0.762 -0.337 0.379 - - - 1.03e-02 -2.49e-03 2.40e-03 52.720 57
CPL 0.473 -1.369 2.431 129.388 -46.711 -129.388 3.12e-02 -3.12e-02 1.85e-01 50.950 56
=== Fluence/Peak Flux Summary ===
Model Band1 Band2 Band3 Band4 Band5 Total
15-25 25-50 50-100 100-350 15-150 15-350 keV
Fluence PL 2.31e-07 4.48e-07 6.75e-07 2.20e-06 1.90e-06 3.56e-06 erg/cm2
90%_error_low -4.65e-08 -5.66e-08 -9.37e-08 -6.00e-07 -2.30e-07 -6.74e-07 erg/cm2
90%_error_hi 4.91e-08 5.57e-08 9.25e-08 7.38e-07 2.32e-07 7.84e-07 erg/cm2
Peak flux PL 2.10e-01 3.29e-01 3.89e-01 8.88e-01 1.19e+00 1.82e+00 ph/cm2/s
90%_error_low -9.25e-02 -1.02e-01 -7.91e-02 -3.17e-01 -2.67e-01 -3.88e-01 ph/cm2/s
90%_error_hi 1.14e-01 1.03e-01 7.91e-02 4.19e-01 2.72e-01 4.08e-01 ph/cm2/s
Fluence CPL 2.31e-07 4.48e-07 6.75e-07 2.21e-06 1.90e-06 3.35e-06 erg/cm2
90%_error_low -4.78e-08 -5.57e-08 -9.27e-08 -1.39e-06 -2.48e-07 -1.18e-06 erg/cm2
90%_error_hi 3.97e-08 6.58e-08 1.02e-07 3.87e-07 2.08e-07 1.49e-06 erg/cm2
Peak flux CPL 1.37e-01 3.30e-01 4.54e-01 3.99e-01 1.15e+00 1.32e+00 ph/cm2/s
90%_error_low -9.80e-02 -1.22e-01 -1.13e-01 -2.44e-01 -2.66e-01 -3.76e-01 ph/cm2/s
90%_error_hi 1.41e-01 1.17e-01 1.18e-01 6.41e-01 2.75e-01 7.04e-01 ph/cm2/s
======================================================================