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: Sat Jul 30 00:02:39 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1033328
======================================================================
Trigger: 01033328 Segment: 000
BAT Trigger Time: 635348146.176 [s; MET]
Trigger Stop: 635348147.2 [s; MET]
UTC: 2021-02-18T13:35:19.647260 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 47.2910601557218 Dec: 35.287132551004 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.16
Image Trigger?: NO
Rate S/N Ratio: 7.07106781186548 [ if not an image trigger ]
Image S/N Ratio: 7.16
Analysis Position: [ source = BAT ]
RA: 47.2910601557218 Dec: 35.287132551004 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 47.3203263045052 Dec: 35.3228320461168 [deg; J2000]
{ 03h 09m 16.9s , +35d 19' 22.2" }
+/- 1.41716551781561 [arcmin] (estimated 90% radius based on SNR)
+/- 0.548509073953229 [arcmin] (formal 1-sigma fit error)
SNR: 18.4843111522042
Angular difference between the analysis and refined position is 2.577129 arcmin
Partial Coding Fraction: 0.578125 [ including projection effects ]
Duration
T90: 215.927999973297 +/- 30.2537176723276
Measured from: -3.86000001430511
to: 212.067999958992 [s; relative to TRIGTIME]
T50: 96.3799999952316 +/- 13.7069168189479
Measured from: 13.9639999866486
to: 110.34399998188 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.0920000076293945
to: 1.09200000762939 [s; relative to TRIGTIME]
Total Fluence
Measured from: -13.4759999513626
to: 246.583999991417 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.609231 2.474646 1.912669 0.371546
0.138677 0.142622 0.122790 0.101988 [error]
Peak 0.015597 0.058769 0.041593 0.018091
0.009040 0.009840 0.008691 0.006907 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 260.060 -13.476 246.584
T90 215.928 -3.860 212.068
T50 96.380 13.964 110.344
Peak 1.000 0.092 1.092
====== 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 -1.475 -0.109 0.109 - - - 1.72e-03 -1.11e-04 1.11e-04 54.860 57
CPL -0.816 -0.454 0.508 91.589 -20.330 85.175 3.65e-03 -1.45e-03 2.76e-03 48.420 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 -1.131 -0.351 0.379 - - - 9.18e-03 -1.94e-03 1.91e-03 43.940 57
CPL -1.070 -6.295 1.001 859.215 N/A N/A 9.81e-03 N/A N/A 43.970 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 5.57e-07 1.04e-06 1.49e-06 4.56e-06 4.25e-06 7.65e-06 erg/cm2
90%_error_low -6.19e-08 -7.23e-08 -1.20e-07 -7.40e-07 -2.96e-07 -8.37e-07 erg/cm2
90%_error_hi 6.39e-08 7.20e-08 1.20e-07 8.30e-07 2.97e-07 9.08e-07 erg/cm2
Peak flux PL 2.66e-01 3.33e-01 3.04e-01 4.84e-01 1.07e+00 1.39e+00 ph/cm2/s
90%_error_low -1.07e-01 -9.07e-02 -6.69e-02 -1.94e-01 -2.36e-01 -2.89e-01 ph/cm2/s
90%_error_hi 1.23e-01 8.72e-02 6.58e-02 2.64e-01 2.37e-01 2.93e-01 ph/cm2/s
Fluence CPL 4.94e-07 1.11e-06 1.56e-06 1.92e-06 4.07e-06 5.08e-06 erg/cm2
90%_error_low -7.43e-08 -8.72e-08 -1.35e-07 -7.84e-07 -3.23e-07 -8.36e-07 erg/cm2
90%_error_hi 7.58e-08 8.92e-08 1.37e-07 1.47e-06 3.24e-07 1.46e-06 erg/cm2
Peak flux CPL 2.74e-01 3.33e-01 3.03e-01 5.01e-01 1.07e+00 1.40e+00 ph/cm2/s
90%_error_low -1.31e-01 -4.61e-02 -6.60e-02 N/A -2.40e-01 -3.09e-01 ph/cm2/s
90%_error_hi 1.14e-01 9.32e-02 7.61e-02 N/A 2.38e-01 2.56e-01 ph/cm2/s
======================================================================
Special notes of this burst