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: Mon Jan 13 19:54:10 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger505646
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Trigger: 00505646 Segment: 000
BAT Trigger Time: 340483032 [s; MET]
Trigger Stop: 340483136 [s; MET]
UTC: 2011-10-16T18:37:04.526260 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 153.806002279747 Dec: 27.4756888348294 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.49
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.49
Analysis Position: [ source = BAT ]
RA: 153.806002279747 Dec: 27.4756888348294 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 153.83095171451 Dec: 27.4721872524119 [deg; J2000]
{ 10h 15m 19.4s , +27d 28' 19.9" }
+/- 2.14356334333729 [arcmin] (estimated 90% radius based on SNR)
+/- 0.798548999640606 [arcmin] (formal 1-sigma fit error)
SNR: 10.2344967380459
Angular difference between the analysis and refined position is 1.344654 arcmin
Partial Coding Fraction: 0.640625 [ including projection effects ]
Duration
T90: 548.995999932289 +/- 107.373835482129
Measured from: 46.5080000162125
to: 595.503999948502 [s; relative to TRIGTIME]
T50: 106.419999957085 +/- 18.8295125644743
Measured from: 118.407999992371
to: 224.827999949455 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 115.227999985218
to: 116.227999985218 [s; relative to TRIGTIME]
Total Fluence
Measured from: 35.444000005722
to: 618.579999983311 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.808913 2.627221 1.626453 0.595114
0.130893 0.136005 0.122629 0.112626 [error]
Peak 0.031467 0.031904 0.038284 0.008484
0.006906 0.007401 0.006592 0.005733 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 583.136 35.444 618.580
T90 548.996 46.508 595.504
T50 106.420 118.408 224.828
Peak 1.000 115.228 116.228
====== 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 -1.909 -0.121 0.118 - - - 7.28e-04 -5.13e-05 5.05e-05 43.500 57
CPL -1.915 -0.230 0.219 9999.360 N/A N/A 7.25e-04 N/A N/A 43.510 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 -1.497 -0.346 0.332 - - - 7.21e-03 -1.46e-03 1.44e-03 47.880 57
CPL -1.028 -1.375 1.654 109.903 -109.903 -109.903 1.22e-02 N/A N/A 47.490 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 7.97e-07 1.14e-06 1.22e-06 2.40e-06 3.90e-06 5.56e-06 erg/cm2
90%_error_low -7.41e-08 -6.62e-08 -1.20e-07 -4.61e-07 -2.68e-07 -5.79e-07 erg/cm2
90%_error_hi 7.60e-08 6.62e-08 1.21e-07 5.33e-07 2.71e-07 6.35e-07 erg/cm2
Peak flux PL 2.96e-01 2.98e-01 2.11e-01 2.38e-01 8.99e-01 1.04e+00 ph/cm2/s
90%_error_low -9.20e-02 -6.14e-02 -5.40e-02 -1.04e-01 -1.76e-01 -2.06e-01 ph/cm2/s
90%_error_hi 1.01e-01 6.05e-02 5.28e-02 1.41e-01 1.76e-01 2.08e-01 ph/cm2/s
Fluence CPL 8.01e-07 1.12e-06 1.20e-06 2.88e-06 3.91e-06 5.89e-06 erg/cm2
90%_error_low -1.10e-07 -1.50e-07 -7.02e-07 -1.29e-06 -4.05e-07 -1.20e-06 erg/cm2
90%_error_hi 2.03e-07 9.64e-08 6.23e-08 -2.00e-07 1.83e-07 3.37e-07 erg/cm2
Peak flux CPL 2.68e-01 3.10e-01 2.23e-01 1.51e-01 8.83e-01 9.52e-01 ph/cm2/s
90%_error_low N/A -6.86e-02 -6.07e-02 -1.51e-01 -1.83e-01 -2.28e-01 ph/cm2/s
90%_error_hi N/A 7.24e-02 6.53e-02 1.06e-01 1.81e-01 2.75e-01 ph/cm2/s
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