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: Fri Jul 29 23:29:00 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1044382
======================================================================
Trigger: 01044382 Segment: 000
BAT Trigger Time: 640636504 [s; MET]
Trigger Stop: 640636568 [s; MET]
UTC: 2021-04-20T18:34:37.120380 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 254.360983528566 Dec: 42.5571753858575 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.66
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.66
Analysis Position: [ source = BAT ]
RA: 254.360983528566 Dec: 42.5571753858575 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 254.319248237532 Dec: 42.5675160368958 [deg; J2000]
{ 16h 57m 16.6s , +42d 34' 03.1" }
+/- 2.13658210707974 [arcmin] (estimated 90% radius based on SNR)
+/- 1.09994493449598 [arcmin] (formal 1-sigma fit error)
SNR: 10.2823030220112
Angular difference between the analysis and refined position is 1.945947 arcmin
Partial Coding Fraction: 0.7734375 [ including projection effects ]
Duration
T90: 158.160000085831 +/- 29.6897030356576
Measured from: -12.8400000333786
to: 145.320000052452 [s; relative to TRIGTIME]
T50: 74.0640000104904 +/- 19.7721242218422
Measured from: 14.8880000114441
to: 88.9520000219345 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 21.0199999809265
to: 22.0199999809265 [s; relative to TRIGTIME]
Total Fluence
Measured from: -21.3040000200272
to: 160.136000037193 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.627133 0.872941 0.742785 0.193734
0.089420 0.091601 0.080209 0.069551 [error]
Peak 0.024451 0.018113 0.010655 0.002775
0.007125 0.007115 0.006145 0.005552 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 181.440 -21.304 160.136
T90 158.160 -12.840 145.320
T50 74.064 14.888 88.952
Peak 1.000 21.020 22.020
====== 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 -1.471 -0.191 0.189 - - - 8.73e-04 -9.81e-05 9.75e-05 48.100 57
CPL -0.963 -0.638 0.924 101.999 -37.881 -101.999 1.58e-03 -7.72e-04 2.74e-03 46.790 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 -2.119 -0.934 0.679 - - - 3.16e-03 -1.71e-03 1.51e-03 61.870 57
CPL -2.219 -1.008 3.113 95.098 N/A N/A 2.67e-03 N/A N/A 61.810 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 1.97e-07 3.68e-07 5.31e-07 1.63e-06 1.51e-06 2.72e-06 erg/cm2
90%_error_low -3.55e-08 -4.21e-08 -7.74e-08 -4.53e-07 -1.86e-07 -5.23e-07 erg/cm2
90%_error_hi 3.72e-08 4.18e-08 7.69e-08 5.59e-07 1.89e-07 6.10e-07 erg/cm2
Peak flux PL 2.37e-01 1.66e-01 7.62e-02 4.90e-02 5.02e-01 5.28e-01 ph/cm2/s
90%_error_low -1.08e-01 -6.09e-02 -4.90e-02 -4.90e-02 -1.70e-01 -1.82e-01 ph/cm2/s
90%_error_hi 1.15e-01 5.74e-02 5.23e-02 9.07e-02 1.70e-01 1.84e-01 ph/cm2/s
Fluence CPL 1.81e-07 3.88e-07 5.48e-07 7.86e-07 1.45e-06 1.90e-06 erg/cm2
90%_error_low -4.30e-08 -5.11e-08 -8.38e-08 -4.86e-07 -2.05e-07 -5.30e-07 erg/cm2
90%_error_hi 4.37e-08 5.32e-08 8.58e-08 9.99e-07 2.07e-07 1.04e-06 erg/cm2
Peak flux CPL 2.27e-01 1.12e-01 3.14e-02 1.41e-02 3.84e-01 4.02e-01 ph/cm2/s
90%_error_low -1.21e-01 -1.12e-01 -3.14e-02 -1.41e-02 -2.08e-01 -2.96e-01 ph/cm2/s
90%_error_hi 1.21e-01 1.23e-01 8.26e-02 7.93e-02 2.82e-01 3.08e-01 ph/cm2/s
======================================================================
Special notes of this burst