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: Mon Aug 6 18:41:55 EDT 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger846088
======================================================================
Trigger: 00846088 Segment: 000
BAT Trigger Time: 552375424.064 [s; MET]
Trigger Stop: 552375425.088 [s; MET]
UTC: 2018-07-04T05:36:42.855940 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 32.6378994196206 Dec: 69.9477861437904 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.74
Image Trigger?: NO
Rate S/N Ratio: 34.8711915483254 [ if not an image trigger ]
Image S/N Ratio: 7.74
Analysis Position: [ source = BAT ]
RA: 32.6378994196206 Dec: 69.9477861437904 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 32.6044440870851 Dec: 69.9653443591817 [deg; J2000]
{ 02h 10m 25.1s , +69d 57' 55.2" }
+/- 1.32640477295966 [arcmin] (estimated 90% radius based on SNR)
+/- 0.446230097852468 [arcmin] (formal 1-sigma fit error)
SNR: 20.3173397436301
Angular difference between the analysis and refined position is 1.258235 arcmin
Partial Coding Fraction: 0.07421875 [ including projection effects ]
Duration
T90: 19.6560000181198 +/- 1.40470642375823
Measured from: -17.1360000371933
to: 2.51999998092651 [s; relative to TRIGTIME]
T50: 14.5839999914169 +/- 0.815580766685976
Measured from: -14.1759999990463
to: 0.407999992370605 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.0440000295639038
to: 1.0440000295639 [s; relative to TRIGTIME]
Total Fluence
Measured from: -17.8960000276566
to: 4.23599994182587 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.272130 2.399375 2.915270 1.373437
0.132981 0.151889 0.147129 0.121904 [error]
Peak 0.125741 0.340966 0.460087 0.155557
0.031556 0.039442 0.044610 0.036333 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 22.132 -17.896 4.236
T90 19.656 -17.136 2.520
T50 14.584 -14.176 0.408
Peak 1.000 0.044 1.044
====== 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 -1.224 -0.100 0.102 - - - 2.76e-02 -1.67e-03 1.66e-03 76.370 57
CPL -0.868 -0.391 0.459 194.054 -75.868 -194.054 3.90e-02 -1.20e-02 2.08e-02 74.260 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 -1.108 -0.182 0.183 - - - 8.24e-02 -9.70e-03 9.67e-03 68.970 57
CPL 0.379 -0.934 1.201 100.552 -19.784 63.635 3.31e-01 -1.90e-01 6.12e-01 60.760 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 6.03e-07 1.31e-06 2.24e-06 8.86e-06 6.15e-06 1.30e-05 erg/cm2
90%_error_low -7.27e-08 -9.84e-08 -1.41e-07 -1.19e-06 -3.67e-07 -1.26e-06 erg/cm2
90%_error_hi 7.61e-08 9.77e-08 1.41e-07 1.31e-06 3.67e-07 1.35e-06 erg/cm2
Peak flux PL 3.12e-04 3.82e-03 8.81e-03 4.13e+00 3.36e-02 4.13e+00 ph/cm2/s
90%_error_low -1.11e-05 -9.81e-05 N/A -4.67e-01 N/A -4.23e-01 ph/cm2/s
90%_error_hi 3.11e-04 3.41e-03 N/A 1.67e+00 N/A 1.79e+00 ph/cm2/s
Fluence CPL 5.44e-07 1.33e-06 2.35e-06 6.03e-06 6.11e-06 1.03e-05 erg/cm2
90%_error_low -9.59e-08 -1.04e-07 -1.87e-07 -2.08e-06 -3.74e-07 -2.07e-06 erg/cm2
90%_error_hi 1.00e-07 1.05e-07 1.90e-07 3.22e-06 3.73e-07 3.23e-06 erg/cm2
Peak flux CPL 1.45e+00 3.05e+00 3.37e+00 1.93e+00 9.14e+00 9.80e+00 ph/cm2/s
90%_error_low -5.99e-01 -5.04e-01 -5.05e-01 -7.67e-01 -1.18e+00 -1.46e+00 ph/cm2/s
90%_error_hi 7.04e-01 4.92e-01 5.23e-01 1.26e+00 1.19e+00 1.70e+00 ph/cm2/s
======================================================================