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 Nov 1 01:26:32 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger657564
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Trigger: 00657564 Segment: 000
BAT Trigger Time: 465674960 [s; MET]
Trigger Stop: 465675032 [s; MET]
UTC: 2015-10-04T18:09:04.774100 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 213.584663525959 Dec: -64.9473172592527 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.34
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.34
Analysis Position: [ source = BAT ]
RA: 213.584663525959 Dec: -64.9473172592527 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 213.612422909715 Dec: -64.9553838360062 [deg; J2000]
{ 14h 14m 27.0s , -64d 57' 19.4" }
+/- 2.32132264971755 [arcmin] (estimated 90% radius based on SNR)
+/- 1.38499924215337 [arcmin] (formal 1-sigma fit error)
SNR: 9.13353887294024
Angular difference between the analysis and refined position is 0.855294 arcmin
Partial Coding Fraction: 1.03125 [ including projection effects ]
Duration
T90: 137.271999955177 +/- 17.0245339786588
Measured from: -9.36000001430511
to: 127.911999940872 [s; relative to TRIGTIME]
T50: 69.1959999799728 +/- 20.6551922084551
Measured from: 22.0199999809265
to: 91.2159999608994 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 50.8600000143051
to: 51.8600000143051 [s; relative to TRIGTIME]
Total Fluence
Measured from: -13.6320000290871
to: 134.367999970913 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.733502 0.696735 0.398822 0.174855
0.079864 0.075049 0.062808 0.053940 [error]
Peak 0.028063 0.014240 0.007713 0.009344
0.006751 0.006192 0.005121 0.004326 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 148.000 -13.632 134.368
T90 137.272 -9.360 127.912
T50 69.196 22.020 91.216
Peak 1.000 50.860 51.860
====== 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 -1.953 -0.231 0.219 - - - 7.44e-04 -1.07e-04 1.04e-04 37.000 57
CPL -1.947 -0.728 0.913 356.408 N/A N/A 7.49e-04 N/A N/A 37.010 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
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 -2.437 -1.081 0.813 - - - 2.18e-03 -2.18e-03 1.39e-03 77.120 57
CPL -1.849 N/A N/A 21.369 N/A N/A 3.77e-03 N/A N/A 77.930 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 2.15e-07 3.01e-07 3.11e-07 5.88e-07 1.01e-06 1.41e-06 erg/cm2
90%_error_low -3.60e-08 -3.41e-08 -6.09e-08 -2.04e-07 -1.37e-07 -2.74e-07 erg/cm2
90%_error_hi 3.71e-08 3.41e-08 6.21e-08 2.68e-07 1.41e-07 3.23e-07 erg/cm2
Peak flux PL 2.23e-01 1.30e-01 4.79e-02 2.34e-02 4.13e-01 4.24e-01 ph/cm2/s
90%_error_low -1.01e-01 -5.77e-02 -3.46e-02 -2.34e-02 -1.46e-01 -1.52e-01 ph/cm2/s
90%_error_hi 1.01e-01 5.11e-02 4.58e-02 6.39e-02 1.46e-01 1.54e-01 ph/cm2/s
Fluence CPL 2.16e-07 2.99e-07 3.13e-07 6.65e-07 1.02e-06 1.41e-06 erg/cm2
90%_error_low -3.82e-08 -4.62e-08 -6.29e-08 -4.82e-07 -1.71e-07 -5.02e-07 erg/cm2
90%_error_hi 3.32e-08 3.35e-08 3.71e-08 1.50e-07 1.19e-07 1.69e-07 erg/cm2
Peak flux CPL 2.09e-01 8.47e-02 2.12e-02 7.75e-03 3.20e-01 3.22e-01 ph/cm2/s
90%_error_low -1.04e-01 -8.47e-02 N/A -7.75e-03 N/A -1.81e-01 ph/cm2/s
90%_error_hi 1.04e-01 8.86e-02 N/A 5.83e-02 N/A 2.41e-01 ph/cm2/s
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