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 v2.46
Process Start Time: Thu May 31 13:15:07 EDT 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger832368
======================================================================
Trigger: 00832368 Segment: 000
BAT Trigger Time: 547997154.432 [s; MET]
Trigger Stop: 547997156.48 [s; MET]
UTC: 2018-05-14T13:25:33.490260 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 197.400829211167 Dec: 36.9695482478951 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.83
Image Trigger?: NO
Rate S/N Ratio: 10.3923048454133 [ if not an image trigger ]
Image S/N Ratio: 7.83
Analysis Position: [ source = BAT ]
RA: 197.400829211167 Dec: 36.9695482478951 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 197.384564570651 Dec: 36.9706469279382 [deg; J2000]
{ 13h 09m 32.3s , +36d 58' 14.3" }
+/- 1.29094113469072 [arcmin] (estimated 90% radius based on SNR)
+/- 0.448750463360856 [arcmin] (formal 1-sigma fit error)
SNR: 21.1193530046473
Angular difference between the analysis and refined position is 0.782459 arcmin
Partial Coding Fraction: 0.9140625 [ including projection effects ]
Duration
T90: 31.1599999666214 +/- 4.10507831355118
Measured from: -6.5440000295639
to: 24.6159999370575 [s; relative to TRIGTIME]
T50: 15.6480000019073 +/- 2.21677241539886
Measured from: 0.867999911308289
to: 16.5159999132156 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.291999936103821
to: 1.29199993610382 [s; relative to TRIGTIME]
Total Fluence
Measured from: -8.36000001430511
to: 28.5999999046326 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.557049 0.623724 0.372586 0.045441
0.037852 0.039297 0.033726 0.028243 [error]
Peak 0.035659 0.028810 0.025377 0.007223
0.006463 0.006628 0.005829 0.004872 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 36.960 -8.360 28.600
T90 31.160 -6.544 24.616
T50 15.648 0.868 16.516
Peak 1.000 0.292 1.292
====== 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 -1.746 -0.131 0.128 - - - 2.64e-03 -2.13e-04 2.11e-04 57.470 57
CPL -1.268 -0.516 0.597 68.379 -17.858 -68.379 4.84e-03 -2.26e-03 5.38e-03 55.020 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 -1.754 -0.393 0.363 - - - 5.43e-03 -1.35e-03 1.29e-03 49.440 57
CPL -1.741 -1.050 1.428 801.898 -801.888 -801.898 5.52e-03 -1.45e-03 3.20e-02 49.440 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 1.57e-07 2.49e-07 2.96e-07 6.88e-07 9.01e-07 1.39e-06 erg/cm2
90%_error_low -1.72e-08 -1.77e-08 -3.23e-08 -1.43e-07 -7.51e-08 -1.76e-07 erg/cm2
90%_error_hi 1.76e-08 1.77e-08 3.25e-08 1.66e-07 7.61e-08 1.94e-07 erg/cm2
Peak flux PL 2.85e-01 2.47e-01 1.46e-01 1.30e-01 7.35e-01 8.09e-01 ph/cm2/s
90%_error_low -8.32e-02 -5.00e-02 -4.67e-02 -6.62e-02 -1.49e-01 -1.70e-01 ph/cm2/s
90%_error_hi 8.72e-02 5.00e-02 4.73e-02 9.80e-02 1.49e-01 1.72e-01 ph/cm2/s
Fluence CPL 1.49e-07 2.63e-07 2.96e-07 3.11e-07 8.57e-07 1.02e-06 erg/cm2
90%_error_low -1.98e-08 -2.33e-08 -3.55e-08 -1.70e-07 -8.77e-08 -1.93e-07 erg/cm2
90%_error_hi 1.98e-08 2.40e-08 3.49e-08 4.18e-07 8.92e-08 4.28e-07 erg/cm2
Peak flux CPL 2.85e-01 2.47e-01 1.46e-01 1.28e-01 7.34e-01 8.06e-01 ph/cm2/s
90%_error_low N/A -5.03e-02 -4.59e-02 -1.28e-01 -1.51e-01 -2.04e-01 ph/cm2/s
90%_error_hi N/A 6.55e-02 4.85e-02 5.70e-02 1.49e-01 1.68e-01 ph/cm2/s
======================================================================
Special notes of this burst