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 Sep 29 23:23:01 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1189514
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Trigger: 01189514 Segment: 000
BAT Trigger Time: 715454608.192 [s; MET]
Trigger Stop: 715454610.24 [s; MET]
UTC: 2023-09-03T17:22:56.248260 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 9.92619753724725 Dec: -40.9238279211701 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.63
Image Trigger?: NO
Rate S/N Ratio: 11.6619037896906 [ if not an image trigger ]
Image S/N Ratio: 7.63
Analysis Position: [ source = BAT ]
RA: 9.92619753724725 Dec: -40.9238279211701 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 9.897540336889 Dec: -40.9088789038754 [deg; J2000]
{ 00h 39m 35.4s , -40d 54' 32.0" }
+/- 1.85317230060731 [arcmin] (estimated 90% radius based on SNR)
+/- 0.624442800687011 [arcmin] (formal 1-sigma fit error)
SNR: 12.6003184888947
Angular difference between the analysis and refined position is 1.578838 arcmin
Partial Coding Fraction: 0.40625 [ including projection effects ]
Duration
T90: 2.53599989414215 +/- 0.269429022393487
Measured from: 0.276000022888184
to: 2.81199991703033 [s; relative to TRIGTIME]
T50: 1.57999992370605 +/- 0.544249932404332
Measured from: 0.679999947547913
to: 2.25999987125397 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.495999932289124
to: 1.49599993228912 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.195999979972839
to: 2.93199992179871 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.080541 0.160312 0.111503 0.027623
0.016930 0.017991 0.016133 0.013339 [error]
Peak 0.039378 0.068104 0.051960 0.015583
0.010591 0.010974 0.010193 0.008028 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 2.736 0.196 2.932
T90 2.536 0.276 2.812
T50 1.580 0.680 2.260
Peak 1.000 0.496 1.496
====== 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 -1.401 -0.210 0.209 - - - 9.21e-03 -1.27e-03 1.26e-03 54.650 57
CPL 0.678 -1.221 1.772 63.179 -10.648 24.407 1.05e-01 -1.05e-01 6.93e-01 44.260 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 -1.444 -0.291 0.287 - - - 1.07e-02 -2.11e-03 2.10e-03 63.400 57
CPL 0.611 -1.507 2.466 61.212 -13.450 42.017 1.24e-01 -1.24e-01 2.14e+00 57.220 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 2.93e-08 5.73e-08 8.67e-08 2.85e-07 2.43e-07 4.58e-07 erg/cm2
90%_error_low -6.23e-09 -8.19e-09 -1.46e-08 -8.73e-08 -3.64e-08 -1.02e-07 erg/cm2
90%_error_hi 6.56e-09 8.13e-09 1.46e-08 1.09e-07 3.68e-08 1.19e-07 erg/cm2
Peak flux PL 4.17e-01 4.34e-01 3.19e-01 3.78e-01 1.32e+00 1.55e+00 ph/cm2/s
90%_error_low -1.22e-01 -8.91e-02 -7.45e-02 -1.46e-01 -2.57e-01 -3.04e-01 ph/cm2/s
90%_error_hi 1.32e-01 8.84e-02 7.41e-02 1.89e-01 2.58e-01 3.07e-01 ph/cm2/s
Fluence CPL 2.09e-08 7.00e-08 9.50e-08 3.64e-08 2.15e-07 2.22e-07 erg/cm2
90%_error_low -7.67e-09 -1.13e-08 -1.92e-08 -2.57e-08 -3.79e-08 -4.43e-08 erg/cm2
90%_error_hi 8.03e-09 1.20e-08 1.85e-08 6.56e-08 4.01e-08 7.03e-08 erg/cm2
Peak flux CPL 3.01e-01 5.31e-01 3.62e-01 7.05e-02 1.25e+00 1.26e+00 ph/cm2/s
90%_error_low -1.43e-01 -1.19e-01 -1.02e-01 -7.05e-02 -2.63e-01 -2.71e-01 ph/cm2/s
90%_error_hi 1.55e-01 1.28e-01 9.77e-02 1.60e-01 2.64e-01 2.85e-01 ph/cm2/s
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