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: Mon Oct 24 00:10:41 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1088376
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Trigger: 01088376 Segment: 000
BAT Trigger Time: 660603204.992 [s; MET]
Trigger Stop: 660603206.016 [s; MET]
UTC: 2021-12-07T20:52:56.775700 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 149.625262667391 Dec: -24.3518427204482 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.77
Image Trigger?: NO
Rate S/N Ratio: 11.4455231422596 [ if not an image trigger ]
Image S/N Ratio: 7.77
Analysis Position: [ source = BAT ]
RA: 149.625262667391 Dec: -24.3518427204482 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 149.60097305815 Dec: -24.3607187048821 [deg; J2000]
{ 09h 58m 24.2s , -24d 21' 38.6" }
+/- 2.27666502515794 [arcmin] (estimated 90% radius based on SNR)
+/- 1.03095611508269 [arcmin] (formal 1-sigma fit error)
SNR: 9.39055029531038
Angular difference between the analysis and refined position is 1.430497 arcmin
Partial Coding Fraction: 0.625 [ including projection effects ]
Duration
T90: 3.7279999256134 +/- 0.871394276910417
Measured from: -0.935999989509583
to: 2.79199993610382 [s; relative to TRIGTIME]
T50: 1.68799996376038 +/- 0.709985879650207
Measured from: 0.0199999809265137
to: 1.70799994468689 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.151999950408936
to: 0.848000049591064 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.30400002002716
to: 2.97200000286102 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.094267 0.133822 0.071108 0.002686
0.016902 0.017988 0.015773 0.013725 [error]
Peak 0.028238 0.046829 0.033656 0.005259
0.008531 0.008911 0.008115 0.006863 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 4.276 -1.304 2.972
T90 3.728 -0.936 2.792
T50 1.688 0.020 1.708
Peak 1.000 -0.152 0.848
====== 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: N/A)
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 -1.715 -0.315 0.295 - - - 4.68e-03 -8.81e-04 8.51e-04 67.350 57
CPL -1.698 -1.975 1.260 840.849 -840.839 -840.849 4.78e-03 -9.77e-04 1.72e-02 67.350 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
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 -1.560 -0.397 0.373 - - - 7.33e-03 -1.79e-03 1.76e-03 66.040 57
CPL 0.012 -1.813 3.144 62.868 -14.772 -62.868 4.62e-02 -4.62e-02 1.62e+00 63.920 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 3.13e-08 5.04e-08 6.14e-08 1.47e-07 1.85e-07 2.90e-07 erg/cm2
90%_error_low -7.71e-09 -8.21e-09 -1.55e-08 -6.45e-08 -3.58e-08 -8.15e-08 erg/cm2
90%_error_hi 8.12e-09 8.20e-09 1.55e-08 9.04e-08 3.65e-08 1.02e-07 erg/cm2
Peak flux PL 3.20e-01 3.10e-01 2.11e-01 2.24e-01 9.31e-01 1.06e+00 ph/cm2/s
90%_error_low -1.10e-01 -7.35e-02 -6.42e-02 -1.11e-01 -2.14e-01 -2.48e-01 ph/cm2/s
90%_error_hi 1.21e-01 7.29e-02 6.36e-02 1.58e-01 2.14e-01 2.51e-01 ph/cm2/s
Fluence CPL 3.12e-08 5.05e-08 6.15e-08 1.43e-07 1.85e-07 2.86e-07 erg/cm2
90%_error_low -8.94e-09 -8.28e-09 -1.55e-08 -8.93e-08 -3.91e-08 -1.28e-07 erg/cm2
90%_error_hi 8.24e-09 1.08e-08 1.63e-08 5.53e-08 3.61e-08 6.00e-08 erg/cm2
Peak flux CPL 2.41e-01 3.56e-01 2.34e-01 5.90e-02 8.78e-01 8.90e-01 ph/cm2/s
90%_error_low -2.41e-01 -9.23e-02 -7.84e-02 -5.90e-02 -2.26e-01 -2.36e-01 ph/cm2/s
90%_error_hi 1.50e-01 9.95e-02 8.04e-02 2.15e-01 2.24e-01 2.91e-01 ph/cm2/s
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