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 22:56:29 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1058804
======================================================================
Trigger: 01058804 Segment: 000
BAT Trigger Time: 646945660.992 [s; MET]
Trigger Stop: 646945662.016 [s; MET]
UTC: 2021-07-02T19:07:13.691440 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 168.569805415435 Dec: -36.741422872714 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.99
Image Trigger?: NO
Rate S/N Ratio: 95.0683964312011 [ if not an image trigger ]
Image S/N Ratio: 6.99
Analysis Position: [ source = BAT ]
RA: 168.569805415435 Dec: -36.741422872714 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: Dec: [deg; J2000]
{ 00h 00m 00.0s , +00d 00' 00.0" }
+/- -inf [arcmin] (estimated 90% radius based on SNR)
+/- 0 [arcmin] (formal 1-sigma fit error)
SNR:
Angular difference between the analysis and refined position is -2294.259716 arcmin
Partial Coding Fraction: 0 [ including projection effects ]
Duration
T90: 219.472000002861 +/- 107.885813586686
Measured from: 21.3040000200272
to: 240.776000022888 [s; relative to TRIGTIME]
T50: 75.0240000486374 +/- 10.417965992171
Measured from: 32.0080000162125
to: 107.03200006485 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 18.8600000143051
to: 19.8600000143051 [s; relative to TRIGTIME]
Total Fluence
Measured from: -172.664000034332
to: 369.223999977112 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 4.242075 5.370142 4.576352 0.937078
0.206592 0.223140 0.212829 0.226641 [error]
Peak 0.140575 0.257883 0.109094 0.092551
0.057177 0.065435 0.058659 0.063745 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 373.380 -3.648 369.732
T90 163.952 -2.452 161.500
T50 35.916 1.060 36.976
Peak 1.000 0.644 1.644
====== 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 -1.534 -0.090 0.089 - - - 2.97e-03 -1.42e-04 1.42e-04 60.690 57
CPL -1.436 -0.178 0.350 300.137 -300.137 -300.137 3.31e-03 -4.69e-04 1.52e-03 60.430 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 N/A N/A N/A - - - N/A N/A N/A N/A N/A
CPL N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
=== 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 1.38e-06 2.48e-06 3.42e-06 9.82e-06 9.85e-06 1.71e-05 erg/cm2
90%_error_low -1.17e-07 -1.24e-07 -2.18e-07 -1.33e-06 -5.15e-07 -1.49e-06 erg/cm2
90%_error_hi 1.21e-07 1.23e-07 2.17e-07 1.46e-06 5.18e-07 1.60e-06 erg/cm2
Peak flux PL N/A N/A N/A N/A N/A N/A ph/cm2/s
Special notes of this burst