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 20 01:24:57 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger313116
======================================================================
Trigger: 00313116 Segment: 000
BAT Trigger Time: 234257224 [s; MET]
Trigger Stop: 234257288 [s; MET]
UTC: 2008-06-04T07:27:01.159600 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 236.969995263586 Dec: 20.5553515503071 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.68
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 11.68
Analysis Position: [ source = BAT ]
RA: 236.969995263586 Dec: 20.5553515503071 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 236.957556880434 Dec: 20.5593469152126 [deg; J2000]
{ 15h 47m 49.8s , +20d 33' 33.6" }
+/- 1.99284906511066 [arcmin] (estimated 90% radius based on SNR)
+/- 0.756041427085413 [arcmin] (formal 1-sigma fit error)
SNR: 11.3578936597447
Angular difference between the analysis and refined position is 0.738755 arcmin
Partial Coding Fraction: 1.03125 [ including projection effects ]
Duration
T90: 77.608000010252 +/- 13.2472380709174
Measured from: -24.33599999547
to: 53.272000014782 [s; relative to TRIGTIME]
T50: 33.3560000061989 +/- 7.94457599923189
Measured from: -3.42800000309944
to: 29.9280000030994 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -3.03600001335144
to: -2.03600001335144 [s; relative to TRIGTIME]
Total Fluence
Measured from: -28.2639999985695
to: 58.608000010252 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.449206 0.559082 0.322661 0.032594
0.046664 0.045382 0.040086 0.034979 [error]
Peak 0.013254 0.016385 0.014667 0.009566
0.005082 0.004836 0.004291 0.003756 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 86.872 -28.264 58.608
T90 77.608 -24.336 53.272
T50 33.356 -3.428 29.928
Peak 1.000 -3.036 -2.036
====== 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 -1.678 -0.174 0.171 - - - 9.79e-04 -1.05e-04 1.04e-04 65.350 57
CPL -1.194 -0.599 0.835 72.327 -22.363 -72.327 1.83e-03 -9.26e-04 3.60e-03 63.920 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 -1.293 -0.531 0.540 - - - 3.18e-03 -9.11e-04 9.10e-04 35.890 57
CPL -0.931 -1.653 2.482 155.283 -155.283 -155.283 4.76e-03 -4.76e-03 5.64e-02 35.910 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 1.28e-07 2.12e-07 2.65e-07 6.57e-07 7.89e-07 1.26e-06 erg/cm2
90%_error_low -1.88e-08 -2.03e-08 -3.82e-08 -1.76e-07 -8.93e-08 -2.15e-07 erg/cm2
90%_error_hi 1.94e-08 2.03e-08 3.85e-08 2.16e-07 9.09e-08 2.48e-07 erg/cm2
Peak flux PL 1.07e-01 1.22e-01 9.98e-02 1.36e-01 3.79e-01 4.66e-01 ph/cm2/s
90%_error_low -5.30e-02 -4.10e-02 -3.52e-02 -7.89e-02 -1.11e-01 -1.37e-01 ph/cm2/s
90%_error_hi 6.29e-02 3.93e-02 3.40e-02 1.30e-01 1.12e-01 1.43e-01 ph/cm2/s
Fluence CPL 1.22e-07 2.25e-07 2.62e-07 2.81e-07 7.44e-07 8.89e-07 erg/cm2
90%_error_low -2.10e-08 -2.70e-08 -4.42e-08 -1.91e-07 -1.09e-07 -2.24e-07 erg/cm2
90%_error_hi 2.12e-08 2.83e-08 4.16e-08 4.40e-07 1.10e-07 4.66e-07 erg/cm2
Peak flux CPL 1.04e-01 1.24e-01 1.01e-01 1.14e-01 3.77e-01 4.43e-01 ph/cm2/s
90%_error_low -6.70e-02 -4.01e-02 -3.55e-02 -1.14e-01 -1.17e-01 -1.74e-01 ph/cm2/s
90%_error_hi 6.56e-02 4.60e-02 4.13e-02 1.70e-01 1.12e-01 1.61e-01 ph/cm2/s
======================================================================