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.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.48
Process Start Time: Sat Oct 19 15:16:03 EDT 2024
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1230423
======================================================================
Trigger: 01230423 Segment: 000
BAT Trigger Time: 738168225.408 [s; MET]
Trigger Stop: 738168229.504 [s; MET]
UTC: 2024-05-23T14:43:11.908720 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 33.5671478971774 Dec: -22.0204592880628 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.5
Image Trigger?: NO
Rate S/N Ratio: 8.54400374531753 [ if not an image trigger ]
Image S/N Ratio: 8.5
Analysis Position: [ source = BAT ]
RA: 33.5671478971774 Dec: -22.0204592880628 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 33.5367072741935 Dec: -22.0515412262457 [deg; J2000]
{ 02h 14m 08.8s , -22d 03' 05.5" }
+/- 1.62362450435195 [arcmin] (estimated 90% radius based on SNR)
+/- 0.772795992880624 [arcmin] (formal 1-sigma fit error)
SNR: 15.2203510610822
Angular difference between the analysis and refined position is 2.518771 arcmin
Partial Coding Fraction: 0.4726562 [ including projection effects ]
Duration
T90: 41.9319999217987 +/- 8.65178382544062
Measured from: -3.92799997329712
to: 38.0039999485016 [s; relative to TRIGTIME]
T50: 23.1159999370575 +/- 5.50600587724988
Measured from: 3.35600006580353
to: 26.472000002861 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.184000015258789
to: 1.18400001525879 [s; relative to TRIGTIME]
Total Fluence
Measured from: -6.36800003051758
to: 46.2999999523163 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.754100 0.740629 0.432950 0.000600
0.067872 0.070286 0.059797 0.050944 [error]
Peak 0.034018 0.045506 0.026948 0.004316
0.009673 0.010416 0.008529 0.006949 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 52.668 -6.368 46.300
T90 41.932 -3.928 38.004
T50 23.116 3.356 26.472
Peak 1.000 0.184 1.184
====== 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 -2.072 -0.204 0.191 - - - 2.29e-03 -2.97e-04 2.90e-04 63.840 57
CPL -1.580 -0.505 0.896 38.558 -20.129 -38.558 4.26e-03 -2.28e-03 8.69e-03 62.650 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 -1.847 -0.525 0.463 - - - 7.11e-03 -2.17e-03 2.01e-03 37.410 57
CPL -1.846 -1.170 0.939 9999.230 N/A N/A 7.12e-03 N/A N/A 37.410 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 2.64e-07 3.43e-07 3.27e-07 5.51e-07 1.12e-06 1.49e-06 erg/cm2
90%_error_low -3.89e-08 -3.52e-08 -5.75e-08 -1.72e-07 -1.32e-07 -2.41e-07 erg/cm2
90%_error_hi 4.02e-08 3.52e-08 5.80e-08 2.15e-07 1.34e-07 2.71e-07 erg/cm2
Peak flux PL 4.09e-01 3.35e-01 1.86e-01 1.52e-01 9.98e-01 1.08e+00 ph/cm2/s
90%_error_low -1.59e-01 -8.69e-02 -7.26e-02 -9.20e-02 -2.59e-01 -2.76e-01 ph/cm2/s
90%_error_hi 1.72e-01 8.62e-02 6.95e-02 1.41e-01 2.59e-01 2.76e-01 ph/cm2/s
Fluence CPL 2.49e-07 3.63e-07 3.29e-07 2.64e-07 1.08e-06 1.21e-06 erg/cm2
90%_error_low -4.66e-08 -4.41e-08 -6.21e-08 -1.73e-07 -1.41e-07 -2.32e-07 erg/cm2
90%_error_hi 4.55e-08 4.77e-08 6.23e-08 4.84e-07 1.45e-07 5.27e-07 erg/cm2
Peak flux CPL 3.90e-01 2.74e-01 1.33e-01 1.05e-01 8.40e-01 9.04e-01 ph/cm2/s
90%_error_low -1.94e-01 -1.37e-01 -1.33e-01 -1.05e-01 -4.19e-01 -4.57e-01 ph/cm2/s
90%_error_hi 1.82e-01 1.39e-01 8.34e-02 6.64e-02 4.08e-01 4.47e-01 ph/cm2/s
======================================================================