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: Tue Dec 26 15:37:22 EST 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1197027
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Trigger: 01197027 Segment: 000
BAT Trigger Time: 721883032.064 [s; MET]
Trigger Stop: 721883032.192 [s; MET]
UTC: 2023-11-17T03:03:19.680140 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 332.409522560922 Dec: 13.5136059442377 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 24.19
Image Trigger?: NO
Rate S/N Ratio: 255.998046867549 [ if not an image trigger ]
Image S/N Ratio: 24.19
Analysis Position: [ source = BAT ]
RA: 332.409522560922 Dec: 13.5136059442377 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 332.404189217709 Dec: 13.5172795169078 [deg; J2000]
{ 22h 09m 37.0s , +13d 31' 02.2" }
+/- 0.603261094350448 [arcmin] (estimated 90% radius based on SNR)
+/- 0.186191084959103 [arcmin] (formal 1-sigma fit error)
SNR: 62.6155517748003
Angular difference between the analysis and refined position is 0.381300 arcmin
Partial Coding Fraction: 0.8359375 [ including projection effects ]
Duration
T90: 0.667999863624573 +/- 0.0729931905000922
Measured from: -0.0199999809265137
to: 0.647999882698059 [s; relative to TRIGTIME]
T50: 0.199999928474426 +/- 0.00894431669225064
Measured from: 0.0479999780654907
to: 0.247999906539917 [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: -0.455999970436096
to: 1.30400002002716 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.962306 1.343971 1.036657 0.290423
0.020515 0.023899 0.022056 0.014677 [error]
Peak 0.878971 1.279303 1.000736 0.285306
0.018761 0.022530 0.021103 0.013808 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 1.760 -0.456 1.304
T90 0.668 -0.020 0.648
T50 0.200 0.048 0.248
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: PL)
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 -1.550 -0.044 0.044 - - - 1.36e-01 -3.19e-03 3.19e-03 62.420 57
CPL -1.323 -0.175 0.182 165.656 -49.533 326.339 1.73e-01 -2.83e-02 3.53e-02 57.490 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
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 -1.510 -0.043 0.043 - - - 2.28e-01 -5.32e-03 5.32e-03 60.720 57
CPL -1.261 -0.175 0.181 165.533 -46.787 235.611 2.96e-01 -4.84e-02 6.03e-02 54.740 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 3.20e-07 5.71e-07 7.80e-07 2.20e-06 2.25e-06 3.87e-06 erg/cm2
90%_error_low -1.48e-08 -1.55e-08 -2.25e-08 -1.41e-07 -5.52e-08 -1.54e-07 erg/cm2
90%_error_hi 1.50e-08 1.54e-08 2.24e-08 1.47e-07 5.52e-08 1.58e-07 erg/cm2
Peak flux PL 9.49e+00 9.50e+00 6.67e+00 7.42e+00 2.86e+01 3.31e+01 ph/cm2/s
90%_error_low -4.40e-01 -2.65e-01 -1.83e-01 -4.29e-01 -7.39e-01 -7.71e-01 ph/cm2/s
90%_error_hi 4.49e-01 2.64e-01 1.82e-01 4.44e-01 7.41e-01 7.71e-01 ph/cm2/s
Fluence CPL 3.03e-07 5.79e-07 7.96e-07 1.65e-06 2.22e-06 3.33e-06 erg/cm2
90%_error_low -1.93e-08 -1.67e-08 -2.59e-08 -3.18e-07 -5.98e-08 -3.21e-07 erg/cm2
90%_error_hi 1.97e-08 1.68e-08 2.60e-08 4.10e-07 5.96e-08 4.10e-07 erg/cm2
Peak flux CPL 8.90e+00 9.61e+00 6.85e+00 5.85e+00 2.81e+01 3.12e+01 ph/cm2/s
90%_error_low -5.84e-01 -2.79e-01 -2.20e-01 -8.81e-01 -8.05e-01 -1.28e+00 ph/cm2/s
90%_error_hi 5.97e-01 2.80e-01 2.22e-01 1.08e+00 8.08e-01 1.42e+00 ph/cm2/s
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