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 Jul 30 00:35:10 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1015728
======================================================================
Trigger: 01015728 Segment: 000
BAT Trigger Time: 631312717.632 [s; MET]
Trigger Stop: 631312718.656 [s; MET]
UTC: 2021-01-02T20:38:11.370000 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 235.736638732015 Dec: -37.2221994622346 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.14
Image Trigger?: NO
Rate S/N Ratio: 12.9614813968157 [ if not an image trigger ]
Image S/N Ratio: 8.14
Analysis Position: [ source = BAT ]
RA: 235.736638732015 Dec: -37.2221994622346 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 235.74574873691 Dec: -37.2326440404327 [deg; J2000]
{ 15h 42m 59.0s , -37d 13' 57.5" }
+/- 0.908689608399914 [arcmin] (estimated 90% radius based on SNR)
+/- 0.33243278740122 [arcmin] (formal 1-sigma fit error)
SNR: 34.8758435346421
Angular difference between the analysis and refined position is 0.762982 arcmin
Partial Coding Fraction: 0.765625 [ including projection effects ]
Duration
T90: 87.231999874115 +/- 5.08893396504204
Measured from: 1.50400006771088
to: 88.7359999418259 [s; relative to TRIGTIME]
T50: 10.6480000019073 +/- 1.45398753137765
Measured from: 63.7879999876022
to: 74.4359999895096 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 66.7120000123978
to: 67.7120000123978 [s; relative to TRIGTIME]
Total Fluence
Measured from: -2.067999958992
to: 97.364000082016 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.276403 2.682071 1.480108 0.353182
0.083889 0.085417 0.075149 0.068212 [error]
Peak 0.142896 0.203470 0.144546 0.024066
0.010720 0.011748 0.010260 0.007879 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 99.432 -2.068 97.364
T90 87.232 1.504 88.736
T50 10.648 63.788 74.436
Peak 1.000 66.712 67.712
====== 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 -1.878 -0.082 0.081 - - - 4.27e-03 -1.94e-04 1.92e-04 47.020 57
CPL -1.727 -0.311 0.324 84.789 -26.064 -84.789 5.12e-03 -1.53e-03 2.39e-03 46.310 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 -1.595 -0.113 0.111 - - - 3.45e-02 -2.39e-03 2.38e-03 42.820 57
CPL -0.939 -0.460 0.516 77.578 -16.360 67.754 7.60e-02 -3.18e-02 6.41e-02 36.650 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 7.73e-07 1.13e-06 1.23e-06 2.50e-06 3.90e-06 5.63e-06 erg/cm2
90%_error_low -5.42e-08 -4.72e-08 -7.73e-08 -3.21e-07 -1.76e-07 -3.87e-07 erg/cm2
90%_error_hi 5.54e-08 4.72e-08 7.75e-08 3.53e-07 1.77e-07 4.11e-07 erg/cm2
Peak flux PL 1.55e+00 1.48e+00 9.79e-01 1.01e+00 4.42e+00 5.02e+00 ph/cm2/s
90%_error_low -1.66e-01 -1.02e-01 -8.57e-02 -1.66e-01 -2.96e-01 -3.34e-01 ph/cm2/s
90%_error_hi 1.70e-01 1.01e-01 8.53e-02 1.84e-01 2.96e-01 3.34e-01 ph/cm2/s
Fluence CPL 7.55e-07 1.14e-06 1.23e-06 1.94e-06 3.84e-06 5.07e-06 erg/cm2
90%_error_low -6.46e-08 -5.62e-08 -7.91e-08 -7.52e-07 -2.12e-07 -7.90e-07 erg/cm2
90%_error_hi 6.53e-08 5.72e-08 7.94e-08 6.54e-07 2.10e-07 7.25e-07 erg/cm2
Peak flux CPL 1.40e+00 1.58e+00 1.02e+00 4.89e-01 4.31e+00 4.49e+00 ph/cm2/s
90%_error_low -1.95e-01 -1.25e-01 -9.54e-02 -1.90e-01 -3.06e-01 -3.68e-01 ph/cm2/s
90%_error_hi 1.98e-01 1.28e-01 9.65e-02 3.15e-01 3.06e-01 4.19e-01 ph/cm2/s
======================================================================