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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.48
Process Start Time: Fri Jul 29 23:22:13 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1046782
======================================================================
Trigger: 01046782 Segment: 000
BAT Trigger Time: 641829320 [s; MET]
Trigger Stop: 641829384 [s; MET]
UTC: 2021-05-04T13:54:53.041040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 222.376049651147 Dec: -30.5412476439381 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.45
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.45
Analysis Position: [ source = BAT ]
RA: 222.376049651147 Dec: -30.5412476439381 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 222.380218907227 Dec: -30.5566372634199 [deg; J2000]
{ 14h 49m 31.3s , -30d 33' 23.9" }
+/- 2.07561322345956 [arcmin] (estimated 90% radius based on SNR)
+/- 1.10311421513985 [arcmin] (formal 1-sigma fit error)
SNR: 10.7164774153803
Angular difference between the analysis and refined position is 0.948175 arcmin
Partial Coding Fraction: 0.53125 [ including projection effects ]
Duration
T90: 142.983999967575 +/- 9.32908560628313
Measured from: -14.1959999799728
to: 128.787999987602 [s; relative to TRIGTIME]
T50: 66.62399995327 +/- 18.2639536124136
Measured from: 28.7039999961853
to: 95.3279999494553 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 87.6840000152588
to: 88.6840000152588 [s; relative to TRIGTIME]
Total Fluence
Measured from: -22.5720000267029
to: 134.756000041962 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.437511 1.672824 1.280894 0.179709
0.112079 0.110843 0.097835 0.086969 [error]
Peak 0.030737 0.042601 0.027673 0.004077
0.009221 0.009380 0.008290 0.007446 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 157.328 -22.572 134.756
T90 142.984 -14.196 128.788
T50 66.624 28.704 95.328
Peak 1.000 87.684 88.684
====== 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 -1.626 -0.129 0.127 - - - 1.87e-03 -1.43e-04 1.42e-04 61.750 57
CPL -0.991 -0.503 0.568 75.620 -17.077 96.529 4.02e-03 -1.79e-03 3.82e-03 56.940 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 -1.633 -0.502 0.469 - - - 6.83e-03 -1.94e-03 1.83e-03 43.800 57
CPL -1.643 -1.476 1.019 9999.350 N/A N/A 6.79e-03 N/A N/A 43.810 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 4.23e-07 7.20e-07 9.32e-07 2.44e-06 2.74e-06 4.52e-06 erg/cm2
90%_error_low -4.85e-08 -5.24e-08 -9.52e-08 -4.85e-07 -2.24e-07 -5.74e-07 erg/cm2
90%_error_hi 5.01e-08 5.23e-08 9.53e-08 5.61e-07 2.27e-07 6.35e-07 erg/cm2
Peak flux PL 3.19e-01 2.97e-01 1.92e-01 1.91e-01 8.87e-01 9.99e-01 ph/cm2/s
90%_error_low -1.24e-01 -7.48e-02 -7.03e-02 -1.11e-01 -2.18e-01 -2.50e-01 ph/cm2/s
90%_error_hi 1.35e-01 7.38e-02 6.92e-02 1.80e-01 2.18e-01 2.55e-01 ph/cm2/s
Fluence CPL 3.84e-07 7.68e-07 9.50e-07 9.73e-07 2.59e-06 3.08e-06 erg/cm2
90%_error_low -5.73e-08 -6.49e-08 -1.04e-07 -4.66e-07 -2.50e-07 -5.31e-07 erg/cm2
90%_error_hi 5.82e-08 6.66e-08 1.05e-07 9.96e-07 2.54e-07 1.01e-06 erg/cm2
Peak flux CPL 3.25e-01 2.96e-01 1.89e-01 2.12e-01 8.89e-01 1.00e+00 ph/cm2/s
90%_error_low N/A -7.41e-02 -1.45e-01 N/A -2.19e-01 -2.88e-01 ph/cm2/s
90%_error_hi N/A 7.52e-02 -4.19e-02 N/A 2.17e-01 2.48e-01 ph/cm2/s
======================================================================
Special notes of this burst