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 07:30:42 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger290624
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Trigger: 00290624 Segment: 000
BAT Trigger Time: 211183066.304 [s; MET]
Trigger Stop: 211183067.328 [s; MET]
UTC: 2007-09-11T05:57:44.087900 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 25.7991691907814 Dec: -33.4728088428944 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.5
Image Trigger?: NO
Rate S/N Ratio: 17.4928556845359 [ if not an image trigger ]
Image S/N Ratio: 10.5
Analysis Position: [ source = BAT ]
RA: 25.7991691907814 Dec: -33.4728088428944 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 25.8079287869266 Dec: -33.47960099546 [deg; J2000]
{ 01h 43m 13.9s , -33d 28' 46.6" }
+/- 0.511717040489844 [arcmin] (estimated 90% radius based on SNR)
+/- 0.134682943946186 [arcmin] (formal 1-sigma fit error)
SNR: 79.2118179587907
Angular difference between the analysis and refined position is 0.598554 arcmin
Partial Coding Fraction: 0.8828125 [ including projection effects ]
Duration
T90: 161.724000006914 +/- 5.9724691640679
Measured from: -31.311999976635
to: 130.412000030279 [s; relative to TRIGTIME]
T50: 66.2120000123978 +/- 1.40253058074924
Measured from: 21.3400000035763
to: 87.552000015974 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 36.1280000209808
to: 37.1280000209808 [s; relative to TRIGTIME]
Total Fluence
Measured from: -72.2679999768734
to: 158.800000011921 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 6.801907 8.237469 5.395422 1.096555
0.084948 0.089661 0.078911 0.067938 [error]
Peak 0.107748 0.182408 0.158121 0.045885
0.006150 0.007129 0.006862 0.005091 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 231.068 -72.268 158.800
T90 161.724 -31.312 130.412
T50 66.212 21.340 87.552
Peak 1.000 36.128 37.128
====== 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 -1.708 -0.037 0.037 - - - 5.94e-03 -1.06e-04 1.06e-04 35.650 57
CPL -1.673 -0.051 0.131 481.655 -323.688 -481.655 6.15e-03 -3.04e-04 8.25e-04 35.760 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 -1.231 -0.077 0.077 - - - 3.33e-02 -1.46e-03 1.46e-03 53.310 57
CPL -0.920 -0.291 0.313 186.053 -67.576 1277.987 4.69e-02 -1.24e-02 1.86e-02 49.970 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 2.13e-06 3.45e-06 4.22e-06 1.02e-05 1.27e-05 2.00e-05 erg/cm2
90%_error_low -8.27e-08 -7.54e-08 -9.35e-08 -5.29e-07 -2.29e-07 -5.64e-07 erg/cm2
90%_error_hi 8.43e-08 7.51e-08 9.33e-08 5.49e-07 2.29e-07 5.77e-07 erg/cm2
Peak flux PL 1.06e+00 1.25e+00 1.07e+00 1.54e+00 3.93e+00 4.92e+00 ph/cm2/s
90%_error_low -8.73e-02 -6.35e-02 -5.57e-02 -1.64e-01 -1.76e-01 -2.29e-01 ph/cm2/s
90%_error_hi 8.97e-02 6.31e-02 5.54e-02 1.76e-01 1.77e-01 2.31e-01 ph/cm2/s
Fluence CPL 2.12e-06 3.45e-06 4.23e-06 9.95e-06 1.27e-05 1.97e-05 erg/cm2
90%_error_low -1.15e-07 -7.14e-08 -5.12e-08 -1.68e-06 -2.67e-07 -1.72e-06 erg/cm2
90%_error_hi 4.63e-08 7.70e-08 1.03e-07 3.48e-07 2.42e-07 7.61e-07 erg/cm2
Peak flux CPL 9.91e-01 1.28e+00 1.10e+00 1.10e+00 3.88e+00 4.47e+00 ph/cm2/s
90%_error_low -1.07e-01 -7.03e-02 -6.46e-02 -2.92e-01 -1.83e-01 -3.68e-01 ph/cm2/s
90%_error_hi 1.09e-01 7.11e-02 6.55e-02 4.20e-01 1.83e-01 4.47e-01 ph/cm2/s
======================================================================