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 23:28:04 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1185673
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Trigger: 01185673 Segment: 000
BAT Trigger Time: 713894960.128 [s; MET]
Trigger Stop: 713894961.152 [s; MET]
UTC: 2023-08-16T16:08:48.290780 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 328.37496109811 Dec: 37.828503929981 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.42
Image Trigger?: NO
Rate S/N Ratio: 15.0332963783729 [ if not an image trigger ]
Image S/N Ratio: 7.42
Analysis Position: [ source = BAT ]
RA: 328.37496109811 Dec: 37.828503929981 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 328.453175208218 Dec: 37.8577755359379 [deg; J2000]
{ 21h 53m 48.8s , +37d 51' 28.0" }
+/- 1.20623606222768 [arcmin] (estimated 90% radius based on SNR)
+/- 0.379462930520351 [arcmin] (formal 1-sigma fit error)
SNR: 23.2694710435944
Angular difference between the analysis and refined position is 4.101017 arcmin
Partial Coding Fraction: 0.984375 [ including projection effects ]
Duration
T90: 19.4479999542236 +/- 3.21816099943384
Measured from: -4.24800002574921
to: 15.1999999284744 [s; relative to TRIGTIME]
T50: 7.25599992275238 +/- 1.54746240251562
Measured from: -0.723999977111816
to: 6.53199994564056 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.595999956130981
to: 1.59599995613098 [s; relative to TRIGTIME]
Total Fluence
Measured from: -5.56400001049042
to: 16.4839999675751 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.359209 0.433432 0.346847 0.106696
0.028446 0.029565 0.025859 0.022254 [error]
Peak 0.038055 0.046159 0.038396 0.012128
0.006296 0.006567 0.005782 0.004864 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 22.048 -5.564 16.484
T90 19.448 -4.248 15.200
T50 7.256 -0.724 6.532
Peak 1.000 0.596 1.596
====== 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 -1.426 -0.132 0.132 - - - 3.50e-03 -2.56e-04 2.55e-04 67.400 57
CPL -1.398 -0.159 0.369 998.553 -998.553 -998.553 3.63e-03 -3.70e-04 1.38e-04 67.510 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 -1.463 -0.268 0.263 - - - 8.05e-03 -1.24e-03 1.22e-03 43.950 57
CPL -1.456 -0.274 0.315 9999.320 -9999.320 -9999.320 8.08e-03 -1.25e-03 1.28e-02 43.960 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 9.21e-08 1.77e-07 2.64e-07 8.45e-07 7.43e-07 1.38e-06 erg/cm2
90%_error_low -1.16e-08 -1.35e-08 -2.53e-08 -1.65e-07 -6.07e-08 -1.86e-07 erg/cm2
90%_error_hi 1.20e-08 1.34e-08 2.52e-08 1.92e-07 6.13e-08 2.08e-07 erg/cm2
Peak flux PL 3.20e-01 3.29e-01 2.39e-01 2.78e-01 9.95e-01 1.16e+00 ph/cm2/s
90%_error_low -7.78e-02 -5.10e-02 -4.73e-02 -9.86e-02 -1.46e-01 -1.76e-01 ph/cm2/s
90%_error_hi 8.27e-02 5.03e-02 4.65e-02 1.28e-01 1.46e-01 1.79e-01 ph/cm2/s
Fluence CPL 9.25e-08 1.75e-07 2.62e-07 8.72e-07 7.49e-07 1.37e-06 erg/cm2
90%_error_low -1.34e-08 -1.57e-08 -2.40e-08 -4.26e-07 -7.30e-08 -3.90e-07 erg/cm2
90%_error_hi 1.23e-08 1.89e-08 2.66e-08 7.21e-08 5.82e-08 1.01e-07 erg/cm2
Peak flux CPL 3.24e-01 3.29e-01 2.38e-01 2.93e-01 9.98e-01 1.17e+00 ph/cm2/s
90%_error_low -8.35e-02 -5.07e-02 -4.61e-02 -5.17e-02 -1.58e-01 -1.74e-01 ph/cm2/s
90%_error_hi 7.89e-02 5.55e-02 4.88e-02 1.11e-01 1.50e-01 1.65e-01 ph/cm2/s
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