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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Thu Mar 17 18:00:38 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger676595
======================================================================
Trigger: 00676595 Segment: 000
BAT Trigger Time: 478373688.384 [s; MET]
Trigger Stop: 478373689.408 [s; MET]
UTC: 2016-02-28T17:34:32.475720 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 107.322435346999 Dec: 26.9564510226191 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.09
Image Trigger?: NO
Rate S/N Ratio: 29.9165506033032 [ if not an image trigger ]
Image S/N Ratio: 10.09
Analysis Position: [ source = BAT ]
RA: 107.322435346999 Dec: 26.9564510226191 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 107.315275107078 Dec: 26.9511857867491 [deg; J2000]
{ 07h 09m 15.7s , +26d 57' 04.3" }
+/- 1.35075461417458 [arcmin] (estimated 90% radius based on SNR)
+/- 0.608133391071857 [arcmin] (formal 1-sigma fit error)
SNR: 19.7961429085091
Angular difference between the analysis and refined position is 0.496437 arcmin
Partial Coding Fraction: 0.8125 [ including projection effects ]
Duration
T90: 98.9079999923706 +/- 23.8907387298692
Measured from: 2.07599997520447
to: 100.983999967575 [s; relative to TRIGTIME]
T50: 47.595999956131 +/- 4.79087295793669
Measured from: 11.972000002861
to: 59.567999958992 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.00800001621246338
to: 0.991999983787537 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.00800001621246338
to: 119.579999983311 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.766920 1.042985 0.898947 0.278507
0.056938 0.059391 0.051974 0.045300 [error]
Peak 0.025637 0.036924 0.067979 0.028048
0.006034 0.006409 0.006376 0.005479 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 119.588 -0.008 119.580
T90 98.908 2.076 100.984
T50 47.596 11.972 59.568
Peak 1.000 -0.008 0.992
====== 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 -1.301 -0.108 0.109 - - - 1.64e-03 -9.60e-05 9.60e-05 41.180 57
CPL -1.219 -0.183 0.378 509.538 -509.538 -509.538 1.79e-03 -2.43e-04 8.63e-04 41.220 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 -0.383 -0.250 0.273 - - - 9.63e-03 -1.55e-03 1.48e-03 42.190 57
CPL -0.374 -0.249 0.386 9999.360 -9999.360 -9999.360 9.73e-03 -1.57e-03 7.85e-03 42.220 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 2.07e-07 4.31e-07 6.99e-07 2.55e-06 1.93e-06 3.89e-06 erg/cm2
90%_error_low -2.33e-08 -2.88e-08 -5.11e-08 -4.00e-07 -1.26e-07 -4.34e-07 erg/cm2
90%_error_hi 2.42e-08 2.86e-08 5.09e-08 4.51e-07 1.27e-07 4.77e-07 erg/cm2
Peak flux PL 1.38e-01 2.72e-01 4.16e-01 1.40e+00 1.17e+00 2.22e+00 ph/cm2/s
90%_error_low -4.59e-02 -5.98e-02 -4.84e-02 -3.52e-01 -1.47e-01 -3.37e-01 ph/cm2/s
90%_error_hi 5.51e-02 6.06e-02 4.82e-02 4.43e-01 1.48e-01 3.94e-01 ph/cm2/s
Fluence CPL 2.07e-07 4.35e-07 7.01e-07 2.45e-06 1.93e-06 3.57e-06 erg/cm2
90%_error_low -3.17e-08 -3.29e-08 -5.42e-08 -1.11e-06 -1.42e-07 -8.78e-07 erg/cm2
90%_error_hi 2.05e-08 2.93e-08 5.74e-08 3.47e-07 1.32e-07 4.48e-07 erg/cm2
Peak flux CPL 1.37e-01 2.72e-01 4.15e-01 1.40e+00 1.17e+00 2.04e+00 ph/cm2/s
90%_error_low N/A -6.01e-02 -4.65e-02 -6.31e-01 -1.38e-01 -5.00e-01 ph/cm2/s
90%_error_hi N/A 4.50e-02 5.00e-02 4.37e-01 1.46e-01 5.58e-01 ph/cm2/s
======================================================================
Special notes of this burst