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: Sun Aug 30 18:11:46 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger650977
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Trigger: 00650977 Segment: 000
BAT Trigger Time: 460161723.584 [s; MET]
Trigger Stop: 460161723.84 [s; MET]
UTC: 2015-08-01T22:41:48.648820 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 82.9589982137698 Dec: -5.38743125075409 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.7
Image Trigger?: NO
Rate S/N Ratio: 13 [ if not an image trigger ]
Image S/N Ratio: 7.7
Analysis Position: [ source = BAT ]
RA: 82.9589982137698 Dec: -5.38743125075409 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 82.9607296632042 Dec: -5.37529810147569 [deg; J2000]
{ 05h 31m 50.6s , -05d 22' 31.1" }
+/- 1.3429923556643 [arcmin] (estimated 90% radius based on SNR)
+/- 0.414382360656706 [arcmin] (formal 1-sigma fit error)
SNR: 19.9597997130576
Angular difference between the analysis and refined position is 0.735300 arcmin
Partial Coding Fraction: 0.625 [ including projection effects ]
Duration
T90: 408.707999944687 +/- 29.6191441817222
Measured from: 0.244000017642975
to: 408.95199996233 [s; relative to TRIGTIME]
T50: 364.887999951839 +/- 6.82123977976951
Measured from: 6.18800002336502
to: 371.075999975204 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 9.32400000095367
to: 10.3240000009537 [s; relative to TRIGTIME]
Total Fluence
Measured from: -30.1599999666214
to: 433.944000005722 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.800035 1.907614 1.258471 0.267568
0.120211 0.123025 0.105050 0.088122 [error]
Peak 0.093393 0.109836 0.072101 0.012204
0.008300 0.008932 0.007570 0.005542 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 464.104 -30.160 433.944
T90 408.708 0.244 408.952
T50 364.888 6.188 371.076
Peak 1.000 9.324 10.324
====== 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 -1.796 -0.139 0.136 - - - 6.90e-04 -5.53e-05 5.45e-05 50.270 57
CPL -1.798 -0.137 0.311 9999.340 -9999.330 -9999.340 6.90e-04 -3.56e-04 4.01e-04 50.280 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 -1.819 -0.157 0.152 - - - 1.84e-02 -1.84e-03 1.81e-03 63.320 57
CPL -1.331 -0.574 0.727 61.886 -17.213 -61.886 3.41e-02 -1.66e-02 5.14e-02 61.490 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 5.40e-07 8.29e-07 9.54e-07 2.11e-06 2.95e-06 4.43e-06 erg/cm2
90%_error_low -6.19e-08 -5.91e-08 -1.05e-07 -4.51e-07 -2.40e-07 -5.51e-07 erg/cm2
90%_error_hi 6.39e-08 5.91e-08 1.06e-07 5.28e-07 2.43e-07 6.11e-07 erg/cm2
Peak flux PL 1.03e+00 8.56e-01 4.85e-01 4.08e-01 2.55e+00 2.78e+00 ph/cm2/s
90%_error_low -1.37e-01 -7.63e-02 -6.27e-02 -9.42e-02 -2.28e-01 -2.46e-01 ph/cm2/s
90%_error_hi 1.41e-01 7.62e-02 6.26e-02 1.10e-01 2.28e-01 2.46e-01 ph/cm2/s
Fluence CPL 5.43e-07 8.24e-07 9.54e-07 2.10e-06 2.98e-06 4.42e-06 erg/cm2
90%_error_low N/A N/A N/A N/A -2.79e-07 -1.03e-06 erg/cm2
90%_error_hi N/A N/A N/A N/A 2.08e-07 5.87e-07 erg/cm2
Peak flux CPL 9.68e-01 9.06e-01 4.95e-01 2.23e-01 2.51e+00 2.59e+00 ph/cm2/s
90%_error_low -1.58e-01 -9.80e-02 -6.81e-02 -1.22e-01 -2.35e-01 -2.72e-01 ph/cm2/s
90%_error_hi 1.59e-01 1.02e-01 6.85e-02 2.23e-01 2.34e-01 3.25e-01 ph/cm2/s
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