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 Aug 28 18:12:34 EDT 2017
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger766194
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Trigger: 00766194 Segment: 000
BAT Trigger Time: 523540916.864 [s; MET]
Trigger Stop: 523540929.024 [s; MET]
UTC: 2017-08-04T12:01:37.389340 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 6.43307870586649 Dec: -64.7481285423807 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.82
Image Trigger?: NO
Rate S/N Ratio: 10 [ if not an image trigger ]
Image S/N Ratio: 8.82
Analysis Position: [ source = BAT ]
RA: 6.43307870586649 Dec: -64.7481285423807 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 6.40451321446312 Dec: -64.7787913676821 [deg; J2000]
{ 00h 25m 37.1s , -64d 46' 43.6" }
+/- 1.3449336188282 [arcmin] (estimated 90% radius based on SNR)
+/- 0.490708702159481 [arcmin] (formal 1-sigma fit error)
SNR: 19.9186556365311
Angular difference between the analysis and refined position is 1.979581 arcmin
Partial Coding Fraction: 0.7578125 [ including projection effects ]
Duration
T90: 56.4799998998642 +/- 18.6804381880922
Measured from: 3.85600000619888
to: 60.3359999060631 [s; relative to TRIGTIME]
T50: 17.9719999432564 +/- 4.81683216431091
Measured from: 13.3959999680519
to: 31.3679999113083 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 25.0999999642372
to: 26.0999999642372 [s; relative to TRIGTIME]
Total Fluence
Measured from: 1.97999995946884
to: 78.9319999814034 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.682647 0.783560 0.600960 0.089731
0.057039 0.059947 0.053174 0.048740 [error]
Peak 0.038386 0.037302 0.013952 0.015227
0.006837 0.007390 0.006550 0.005594 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 76.952 1.980 78.932
T90 56.480 3.856 60.336
T50 17.972 13.396 31.368
Peak 1.000 25.100 26.100
====== 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 -1.682 -0.147 0.144 - - - 1.86e-03 -1.64e-04 1.62e-04 45.580 57
CPL -1.218 -0.522 0.629 79.584 -23.431 -79.584 3.26e-03 -1.48e-03 3.63e-03 43.510 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 -2.070 -0.425 0.376 - - - 5.77e-03 -1.68e-03 1.61e-03 77.150 57
CPL -1.972 N/A N/A 13.072 N/A N/A 6.54e-03 N/A N/A 77.210 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 2.16e-07 3.56e-07 4.43e-07 1.10e-06 1.32e-06 2.11e-06 erg/cm2
90%_error_low -2.76e-08 -2.91e-08 -5.26e-08 -2.48e-07 -1.23e-07 -2.99e-07 erg/cm2
90%_error_hi 2.85e-08 2.91e-08 5.26e-08 2.93e-07 1.25e-07 3.35e-07 erg/cm2
Peak flux PL 4.12e-01 2.97e-01 1.41e-01 9.49e-02 8.95e-01 9.45e-01 ph/cm2/s
90%_error_low -1.08e-01 -6.17e-02 -5.15e-02 -5.23e-02 -1.79e-01 -1.94e-01 ph/cm2/s
90%_error_hi 1.11e-01 6.09e-02 5.46e-02 8.22e-02 1.79e-01 1.97e-01 ph/cm2/s
Fluence CPL 2.03e-07 3.74e-07 4.50e-07 5.39e-07 1.27e-06 1.57e-06 erg/cm2
90%_error_low -3.24e-08 -3.63e-08 -5.63e-08 -2.91e-07 -1.37e-07 -3.25e-07 erg/cm2
90%_error_hi 3.27e-08 1.91e-08 5.67e-08 6.46e-07 1.39e-07 6.70e-07 erg/cm2
Peak flux CPL 4.07e-01 2.88e-01 1.31e-01 1.11e-01 8.60e-01 9.47e-01 ph/cm2/s
90%_error_low -1.29e-01 -1.57e-01 N/A -6.78e-02 -3.49e-01 N/A ph/cm2/s
90%_error_hi 1.15e-01 1.38e-01 N/A 4.04e-02 2.10e-01 N/A ph/cm2/s
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