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 23:47:42 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1037339
======================================================================
Trigger: 01037339 Segment: 000
BAT Trigger Time: 637732498.368 [s; MET]
Trigger Stop: 637732501.44 [s; MET]
UTC: 2021-03-18T03:54:31.681240 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 33.9302682502313 Dec: -37.7895119002422 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.72
Image Trigger?: NO
Rate S/N Ratio: 11.2694276695846 [ if not an image trigger ]
Image S/N Ratio: 7.72
Analysis Position: [ source = BAT ]
RA: 33.9302682502313 Dec: -37.7895119002422 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 33.9037670566305 Dec: -37.7724157060411 [deg; J2000]
{ 02h 15m 36.9s , -37d 46' 20.7" }
+/- 2.51594833469396 [arcmin] (estimated 90% radius based on SNR)
+/- 0.990562315218269 [arcmin] (formal 1-sigma fit error)
SNR: 8.14117993309832
Angular difference between the analysis and refined position is 1.622211 arcmin
Partial Coding Fraction: 0.7578125 [ including projection effects ]
Duration
T90: 80 +/- 50.5964425626941
Measured from: 0.631999969482422
to: 80.6319999694824 [s; relative to TRIGTIME]
T50: 16 +/- 48
Measured from: 0.631999969482422
to: 16.6319999694824 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 8.13199996948242
to: 9.13199996948242 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.631999969482422
to: 96.6319999694824 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.187743 0.492939 0.398730 0.139290
0.073311 0.076115 0.068829 0.065786 [error]
Peak 0.005030 0.028501 -0.000319 0.013767
0.008531 0.008490 0.007735 0.007178 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 96.000 0.632 96.632
T90 80.000 0.632 80.632
T50 16.000 0.632 16.632
Peak 1.000 8.132 9.132
====== 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 -1.280 -0.335 0.342 - - - 8.40e-04 -1.57e-04 1.57e-04 59.760 57
CPL -1.043 -1.808 1.237 212.681 -212.681 -212.681 1.09e-03 -4.05e-04 2.88e-03 59.740 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 -1.678 -1.350 1.394 - - - 2.41e-03 -1.77e-03 1.71e-03 57.900 57
CPL 5.550 N/A N/A 35.250 N/A N/A 1.20e+02 N/A N/A 54.350 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 8.38e-08 1.76e-07 2.90e-07 1.08e-06 8.01e-07 1.63e-06 erg/cm2
90%_error_low -2.76e-08 -3.70e-08 -6.83e-08 -4.69e-07 -1.67e-07 -5.28e-07 erg/cm2
90%_error_hi 3.04e-08 3.60e-08 6.70e-08 6.81e-07 1.70e-07 7.08e-07 erg/cm2
Peak flux PL 1.18e-01 1.07e-01 6.65e-02 6.34e-02 3.17e-01 3.54e-01 ph/cm2/s
90%_error_low -1.18e-01 -1.07e-01 -5.41e-02 -6.34e-02 -2.07e-01 -2.33e-01 ph/cm2/s
90%_error_hi 1.19e-01 7.00e-02 6.19e-02 2.27e-01 2.08e-01 6.29e-01 ph/cm2/s
Fluence CPL 8.16e-08 1.78e-07 2.94e-07 8.79e-07 7.93e-07 1.43e-06 erg/cm2
90%_error_low -3.32e-08 -3.88e-08 -7.10e-08 -6.91e-07 -1.80e-07 -7.23e-07 erg/cm2
90%_error_hi 2.80e-08 4.21e-08 7.56e-08 5.72e-07 1.76e-07 3.89e-07 erg/cm2
Peak flux CPL 6.38e-02 2.18e-01 1.43e-02 3.72e-07 2.92e-01 2.90e-01 ph/cm2/s
90%_error_low -6.38e-02 -2.18e-01 -1.43e-02 -3.72e-07 -1.46e-01 -1.44e-01 ph/cm2/s
90%_error_hi 1.30e-01 1.02e-01 4.77e-02 1.92e-03 1.79e-01 1.82e-01 ph/cm2/s
======================================================================
Special notes of this burst