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.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.48
Process Start Time: Tue Dec 26 22:32:29 EST 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1195887
======================================================================
Trigger: 01195887 Segment: 000
BAT Trigger Time: 721405072.064 [s; MET]
Trigger Stop: 721405073.088 [s; MET]
UTC: 2023-11-11T14:17:19.712860 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 290.233898035718 Dec: 52.4469715812306 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 12.51
Image Trigger?: NO
Rate S/N Ratio: 23.6643191323985 [ if not an image trigger ]
Image S/N Ratio: 12.51
Analysis Position: [ source = BAT ]
RA: 290.233898035718 Dec: 52.4469715812306 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 290.198774660372 Dec: 52.4400635289037 [deg; J2000]
{ 19h 20m 47.7s , +52d 26' 24.2" }
+/- 0.772963180958617 [arcmin] (estimated 90% radius based on SNR)
+/- 0.2401173660246 [arcmin] (formal 1-sigma fit error)
SNR: 43.9431830693587
Angular difference between the analysis and refined position is 1.349768 arcmin
Partial Coding Fraction: 0.6171875 [ including projection effects ]
Duration
T90: 34.0759998559952 +/- 4.8503395055933
Measured from: -3.74399995803833
to: 30.3319998979568 [s; relative to TRIGTIME]
T50: 11.6119998693466 +/- 0.860306927820265
Measured from: 0.0160000324249268
to: 11.6279999017715 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.0679999589920044
to: 1.067999958992 [s; relative to TRIGTIME]
Total Fluence
Measured from: -5.32000005245209
to: 40.3400000333786 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.439329 1.961802 1.467724 0.377686
0.061812 0.065682 0.057305 0.048656 [error]
Peak 0.079637 0.125354 0.090236 0.029252
0.010127 0.011642 0.010181 0.007737 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 45.660 -5.320 40.340
T90 34.076 -3.744 30.332
T50 11.612 0.016 11.628
Peak 1.000 0.068 1.068
====== 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 -1.580 -0.070 0.070 - - - 7.87e-03 -3.10e-04 3.09e-04 53.710 57
CPL -1.183 -0.282 0.301 106.394 -25.422 123.170 1.23e-02 -3.25e-03 4.80e-03 47.770 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 -1.556 -0.172 0.169 - - - 2.15e-02 -2.32e-03 2.30e-03 66.850 57
CPL -1.009 -0.619 0.789 88.060 -27.755 -88.060 4.15e-02 -2.12e-02 6.39e-02 64.910 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 4.94e-07 8.65e-07 1.16e-06 3.18e-06 3.37e-06 5.69e-06 erg/cm2
90%_error_low -3.47e-08 -3.66e-08 -5.83e-08 -3.37e-07 -1.41e-07 -3.79e-07 erg/cm2
90%_error_hi 3.55e-08 3.65e-08 5.82e-08 3.63e-07 1.41e-07 3.99e-07 erg/cm2
Peak flux PL 9.32e-01 9.07e-01 6.17e-01 6.58e-01 2.72e+00 3.11e+00 ph/cm2/s
90%_error_low -1.52e-01 -9.76e-02 -8.33e-02 -1.61e-01 -2.83e-01 -3.25e-01 ph/cm2/s
90%_error_hi 1.58e-01 9.71e-02 8.26e-02 1.88e-01 2.84e-01 3.27e-01 ph/cm2/s
Fluence CPL 4.66e-07 6.48e-07 6.95e-07 1.69e-06 2.27e-06 3.51e-06 erg/cm2
90%_error_low -4.46e-08 -5.52e-08 -4.02e-08 -1.41e-07 -1.52e-07 -1.25e-07 erg/cm2
90%_error_hi 3.07e-08 5.74e-08 4.62e-08 1.50e-07 1.60e-07 1.56e-07 erg/cm2
Peak flux CPL 8.58e-01 9.64e-01 6.45e-01 3.58e-01 2.68e+00 2.82e+00 ph/cm2/s
90%_error_low -1.79e-01 -1.20e-01 -9.26e-02 -1.88e-01 -2.90e-01 -3.55e-01 ph/cm2/s
90%_error_hi 1.82e-01 1.25e-01 9.49e-02 3.65e-01 2.89e-01 4.62e-01 ph/cm2/s
======================================================================
Special notes of this burst