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 01:30:07 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger313087
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Trigger: 00313087 Segment: 000
BAT Trigger Time: 234214696.128 [s; MET]
Trigger Stop: 234214696.64 [s; MET]
UTC: 2008-06-03T19:38:13.288800 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 176.527531635607 Dec: 68.0759595189382 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.63
Image Trigger?: NO
Rate S/N Ratio: 19.3649167310371 [ if not an image trigger ]
Image S/N Ratio: 10.63
Analysis Position: [ source = BAT ]
RA: 176.527531635607 Dec: 68.0759595189382 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 176.551369790955 Dec: 68.0619708322101 [deg; J2000]
{ 11h 46m 12.3s , +68d 03' 43.1" }
+/- 0.748871992018109 [arcmin] (estimated 90% radius based on SNR)
+/- 0.193980388128199 [arcmin] (formal 1-sigma fit error)
SNR: 45.9765215968534
Angular difference between the analysis and refined position is 0.994901 arcmin
Partial Coding Fraction: 1 [ including projection effects ]
Duration
T90: 59.1240000128746 +/- 1.63096534638045
Measured from: 0.944000005722046
to: 60.0680000185966 [s; relative to TRIGTIME]
T50: 45.3440000116825 +/- 1.07059610465852
Measured from: 3.6240000128746
to: 48.9680000245571 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.96000000834465
to: 1.96000000834465 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.11599999666214
to: 68.2560000121593 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.392891 1.776075 1.143370 0.180465
0.039984 0.042232 0.037520 0.032468 [error]
Peak 0.095298 0.152767 0.158416 0.057586
0.005950 0.006854 0.006924 0.005661 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 68.372 -0.116 68.256
T90 59.124 0.944 60.068
T50 45.344 3.624 48.968
Peak 1.000 0.960 1.960
====== 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: CPL)
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 -1.731 -0.061 0.061 - - - 4.09e-03 -1.35e-04 1.35e-04 68.740 57
CPL -1.210 -0.256 0.272 74.941 -10.857 25.782 7.44e-03 -1.86e-03 2.67e-03 56.010 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 -1.098 -0.087 0.087 - - - 3.04e-02 -1.43e-03 1.43e-03 51.930 57
CPL -1.094 -0.086 0.092 9999.210 -9999.210 -9999.210 3.06e-02 -1.38e-03 9.83e-03 51.950 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 4.44e-07 7.09e-07 8.54e-07 2.01e-06 2.58e-06 4.02e-06 erg/cm2
90%_error_low -2.50e-08 -2.35e-08 -3.81e-08 -1.90e-07 -8.86e-08 -2.18e-07 erg/cm2
90%_error_hi 2.55e-08 2.34e-08 3.81e-08 2.03e-07 8.90e-08 2.29e-07 erg/cm2
Peak flux PL 8.54e-01 1.09e+00 1.02e+00 1.68e+00 3.53e+00 4.64e+00 ph/cm2/s
90%_error_low -8.08e-02 -6.22e-02 -5.61e-02 -1.95e-01 -1.69e-01 -2.42e-01 ph/cm2/s
90%_error_hi 8.35e-02 6.17e-02 5.57e-02 2.12e-01 1.69e-01 2.46e-01 ph/cm2/s
Fluence CPL 4.02e-07 7.37e-07 8.68e-07 9.75e-07 2.46e-06 2.98e-06 erg/cm2
90%_error_low -3.12e-08 -2.74e-08 -4.09e-08 -2.65e-07 -1.05e-07 -2.88e-07 erg/cm2
90%_error_hi 3.18e-08 2.77e-08 4.11e-08 3.87e-07 1.05e-07 4.00e-07 erg/cm2
Peak flux CPL 8.52e-01 1.09e+00 1.02e+00 1.67e+00 3.54e+00 4.72e+00 ph/cm2/s
90%_error_low N/A -6.96e-02 -6.10e-02 N/A -2.04e-01 -5.73e-01 ph/cm2/s
90%_error_hi N/A 7.42e-02 7.77e-02 N/A 1.87e-01 1.48e-01 ph/cm2/s
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