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 Jun 14 11:59:54 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1144698
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Trigger: 01144698 Segment: 000
BAT Trigger Time: 692882511.36 [s; MET]
Trigger Stop: 692882512.384 [s; MET]
UTC: 2022-12-16T11:21:20.956420 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 326.020902229861 Dec: -34.4050890625163 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.84
Image Trigger?: NO
Rate S/N Ratio: 17.832554500127 [ if not an image trigger ]
Image S/N Ratio: 9.84
Analysis Position: [ source = BAT ]
RA: 326.020902229861 Dec: -34.4050890625163 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 326.053443704494 Dec: -34.4140391251465 [deg; J2000]
{ 21h 44m 12.8s , -34d 24' 50.5" }
+/- 1.22589283398037 [arcmin] (estimated 90% radius based on SNR)
+/- 0.379434483945555 [arcmin] (formal 1-sigma fit error)
SNR: 22.7382824354101
Angular difference between the analysis and refined position is 1.697993 arcmin
Partial Coding Fraction: 1 [ including projection effects ]
Duration
T90: 228.531999945641 +/- 44.2294997864093
Measured from: -11.9960000514984
to: 216.535999894142 [s; relative to TRIGTIME]
T50: 155.999999880791 +/- 4.53429804868911
Measured from: 6.12800002098083
to: 162.127999901772 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.228000044822693
to: 1.22800004482269 [s; relative to TRIGTIME]
Total Fluence
Measured from: -38.2960000038147
to: 267.907999992371 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.933583 3.799049 2.365710 0.391913
0.142327 0.147923 0.129169 0.113459 [error]
Peak 0.042749 0.091382 0.070834 0.020001
0.009399 0.010133 0.009269 0.007382 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 306.204 -38.296 267.908
T90 228.532 -11.996 216.536
T50 156.000 6.128 162.128
Peak 1.000 0.228 1.228
====== 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: CPL)
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 -1.677 -0.089 0.088 - - - 1.93e-03 -9.82e-05 9.77e-05 57.400 57
CPL -1.118 -0.372 0.407 76.248 -14.511 54.588 3.73e-03 -1.30e-03 2.24e-03 50.570 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 -1.158 -0.209 0.212 - - - 1.51e-02 -1.89e-03 1.89e-03 43.950 57
CPL -0.535 -0.740 1.060 131.194 -51.502 -131.194 2.92e-02 -1.36e-02 5.64e-02 42.450 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 8.89e-07 1.47e-06 1.84e-06 4.57e-06 5.47e-06 8.76e-06 erg/cm2
90%_error_low -7.13e-08 -7.19e-08 -1.26e-07 -6.38e-07 -2.95e-07 -7.46e-07 erg/cm2
90%_error_hi 7.30e-08 7.19e-08 1.27e-07 7.04e-07 2.97e-07 8.00e-07 erg/cm2
Peak flux PL 4.47e-01 5.52e-01 4.95e-01 7.67e-01 1.76e+00 2.26e+00 ph/cm2/s
90%_error_low -1.03e-01 -8.21e-02 -7.09e-02 -2.07e-01 -2.26e-01 -2.99e-01 ph/cm2/s
90%_error_hi 1.10e-01 8.08e-02 7.00e-02 2.48e-01 2.27e-01 3.06e-01 ph/cm2/s
Fluence CPL 8.10e-07 1.54e-06 1.87e-06 2.04e-06 5.20e-06 6.26e-06 erg/cm2
90%_error_low -8.72e-08 -8.80e-08 -1.36e-07 -7.72e-07 -3.41e-07 -8.48e-07 erg/cm2
90%_error_hi 8.86e-08 8.95e-08 1.37e-07 1.36e-06 3.44e-07 1.39e-06 erg/cm2
Peak flux CPL 3.86e-01 5.76e-01 5.32e-01 4.32e-01 1.72e+00 1.93e+00 ph/cm2/s
90%_error_low -1.29e-01 -9.12e-02 -8.78e-02 -2.30e-01 -2.34e-01 -3.43e-01 ph/cm2/s
90%_error_hi 1.37e-01 9.39e-02 9.07e-02 4.20e-01 2.33e-01 5.00e-01 ph/cm2/s
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