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 00:31:11 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1015919
======================================================================
Trigger: 01015919 Segment: 000
BAT Trigger Time: 631487437.12 [s; MET]
Trigger Stop: 631487438.144 [s; MET]
UTC: 2021-01-04T21:10:10.846460 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 53.6011737701449 Dec: 37.9308387655033 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.88
Image Trigger?: NO
Rate S/N Ratio: 11.5325625946708 [ if not an image trigger ]
Image S/N Ratio: 7.88
Analysis Position: [ source = BAT ]
RA: 53.6011737701449 Dec: 37.9308387655033 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 53.5615447871282 Dec: 37.9486321886368 [deg; J2000]
{ 03h 34m 14.8s , +37d 56' 55.1" }
+/- 1.57761719479648 [arcmin] (estimated 90% radius based on SNR)
+/- 0.545469646542714 [arcmin] (formal 1-sigma fit error)
SNR: 15.8583831676958
Angular difference between the analysis and refined position is 2.157832 arcmin
Partial Coding Fraction: 0.59375 [ including projection effects ]
Duration
T90: 19.944000005722 +/- 2.39839021478798
Measured from: 0.371999979019165
to: 20.3159999847412 [s; relative to TRIGTIME]
T50: 7.63199996948242 +/- 3.4077329369124
Measured from: 6.42799997329712
to: 14.0599999427795 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 10.8320000171661
to: 11.8320000171661 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.148000001907349
to: 22.7639999389648 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.744909 0.781686 0.503680 0.084162
0.047175 0.049069 0.043959 0.042007 [error]
Peak 0.069112 0.082681 0.061705 0.008709
0.010705 0.011577 0.009718 0.008867 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 22.912 -0.148 22.764
T90 19.944 0.372 20.316
T50 7.632 6.428 14.060
Peak 1.000 10.832 11.832
====== 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 -1.834 -0.141 0.137 - - - 5.60e-03 -4.66e-04 4.59e-04 55.120 57
CPL -1.778 -0.497 0.531 179.309 -129.779 -179.309 6.01e-03 -2.28e-03 5.51e-03 55.080 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 -1.740 -0.255 0.244 - - - 1.39e-02 -2.29e-03 2.24e-03 34.770 57
CPL -1.238 -0.883 1.132 67.252 -54.732 -67.252 2.66e-02 -2.66e-02 8.73e-02 33.950 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 2.24e-07 3.36e-07 3.77e-07 8.03e-07 1.18e-06 1.74e-06 erg/cm2
90%_error_low -2.48e-08 -2.36e-08 -4.36e-08 -1.77e-07 -9.84e-08 -2.21e-07 erg/cm2
90%_error_hi 2.55e-08 2.36e-08 4.39e-08 2.09e-07 9.98e-08 2.46e-07 erg/cm2
Peak flux PL 7.21e-01 6.29e-01 3.77e-01 3.40e-01 1.87e+00 2.07e+00 ph/cm2/s
90%_error_low -1.50e-01 -9.00e-02 -7.96e-02 -1.22e-01 -2.67e-01 -3.00e-01 ph/cm2/s
90%_error_hi 1.56e-01 8.98e-02 7.98e-02 1.57e-01 2.67e-01 3.02e-01 ph/cm2/s
Fluence CPL 2.23e-07 3.38e-07 3.78e-07 7.23e-07 1.17e-06 1.66e-06 erg/cm2
90%_error_low -2.85e-08 -2.55e-08 -4.42e-08 -4.19e-07 -1.16e-07 -4.41e-07 erg/cm2
90%_error_hi 2.79e-08 2.99e-08 4.40e-08 1.15e-07 1.05e-07 4.60e-07 erg/cm2
Peak flux CPL 6.83e-01 6.70e-01 3.83e-01 1.77e-01 1.85e+00 1.91e+00 ph/cm2/s
90%_error_low -1.70e-01 -1.13e-01 -8.73e-02 -1.77e-01 -2.72e-01 -3.11e-01 ph/cm2/s
90%_error_hi 1.71e-01 1.22e-01 8.71e-02 2.08e-01 2.72e-01 3.68e-01 ph/cm2/s
======================================================================