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: Wed Oct 19 23:33:05 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger999948
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Trigger: 00999948 Segment: 000
BAT Trigger Time: 624253616.448 [s; MET]
Trigger Stop: 624253616.576 [s; MET]
UTC: 2020-10-13T03:46:30.651960 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 107.387835387955 Dec: 57.0358898588483 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 13.37
Image Trigger?: NO
Rate S/N Ratio: 116.858889263932 [ if not an image trigger ]
Image S/N Ratio: 13.37
Analysis Position: [ source = BAT ]
RA: 107.387835387955 Dec: 57.0358898588483 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 107.391724441058 Dec: 57.03116466483 [deg; J2000]
{ 07h 09m 34.0s , +57d 01' 52.2" }
+/- 0.624191607961191 [arcmin] (estimated 90% radius based on SNR)
+/- 0.175463504557986 [arcmin] (formal 1-sigma fit error)
SNR: 59.6377628442747
Angular difference between the analysis and refined position is 0.310646 arcmin
Partial Coding Fraction: 0.640625 [ including projection effects ]
Duration
T90: 7.31599986553192 +/- 0.178392941915236
Measured from: -0.0519999265670776
to: 7.26399993896484 [s; relative to TRIGTIME]
T50: 5.3879998922348 +/- 0.0572712379609395
Measured from: 0.552000045776367
to: 5.93999993801117 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.0479999780654907
to: 0.952000021934509 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.847999930381775
to: 9.29200005531311 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.031375 3.424386 3.265379 0.877752
0.042013 0.050667 0.049670 0.034195 [error]
Peak 0.529774 1.026705 1.219173 0.388663
0.018931 0.025343 0.028406 0.019962 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 10.140 -0.848 9.292
T90 7.316 -0.052 7.264
T50 5.388 0.552 5.940
Peak 1.000 -0.048 0.952
====== 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 -1.221 -0.035 0.035 - - - 6.49e-02 -1.28e-03 1.28e-03 42.820 57
CPL -0.847 -0.149 0.154 184.572 -36.357 79.018 9.34e-02 -1.23e-02 1.46e-02 23.550 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 -0.920 -0.048 0.048 - - - 2.14e-01 -5.94e-03 5.93e-03 57.600 57
CPL -0.529 -0.197 0.206 227.237 -57.635 161.617 3.14e-01 -5.37e-02 6.76e-02 45.740 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 6.48e-07 1.41e-06 2.42e-06 9.60e-06 6.64e-06 1.41e-05 erg/cm2
90%_error_low -2.66e-08 -3.45e-08 -5.23e-08 -4.75e-07 -1.34e-07 -4.97e-07 erg/cm2
90%_error_hi 2.71e-08 3.44e-08 5.21e-08 4.91e-07 1.34e-07 5.11e-07 erg/cm2
Peak flux PL 5.07e+00 7.22e+00 7.63e+00 1.49e+01 2.46e+01 3.48e+01 ph/cm2/s
90%_error_low -2.90e-01 -2.53e-01 -2.25e-01 -9.43e-01 -6.86e-01 -1.09e+00 ph/cm2/s
90%_error_hi 2.96e-01 2.52e-01 2.25e-01 9.83e-01 6.86e-01 1.10e+00 ph/cm2/s
Fluence CPL 5.02e-07 6.58e-07 6.62e-07 1.52e-06 2.23e-06 3.32e-06 erg/cm2
90%_error_low N/A N/A N/A N/A N/A N/A erg/cm2
90%_error_hi N/A N/A N/A N/A N/A N/A erg/cm2
Peak flux CPL 4.52e+00 7.32e+00 8.02e+00 1.05e+01 2.42e+01 3.03e+01 ph/cm2/s
90%_error_low -3.80e-01 -2.67e-01 -2.95e-01 -1.64e+00 -7.07e-01 -1.80e+00 ph/cm2/s
90%_error_hi 3.89e-01 2.67e-01 2.97e-01 2.03e+00 7.07e-01 2.13e+00 ph/cm2/s
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