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: Sat Jan 20 04:53:30 EST 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger791201
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Trigger: 00791201 Segment: 000
BAT Trigger Time: 532876822.528 [s; MET]
Trigger Stop: 532876822.784 [s; MET]
UTC: 2017-11-20T13:20:02.497620 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 163.78729657664 Dec: 22.4495879527507 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 15.59
Image Trigger?: NO
Rate S/N Ratio: 121.482509029078 [ if not an image trigger ]
Image S/N Ratio: 15.59
Analysis Position: [ source = BAT ]
RA: 163.78729657664 Dec: 22.4495879527507 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 163.774638463656 Dec: 22.4607281461912 [deg; J2000]
{ 10h 55m 05.9s , +22d 27' 38.6" }
+/- 1.2241508470428 [arcmin] (estimated 90% radius based on SNR)
+/- 0.559257194323208 [arcmin] (formal 1-sigma fit error)
SNR: 22.7845207449016
Angular difference between the analysis and refined position is 0.969247 arcmin
Partial Coding Fraction: 0.1484375 [ including projection effects ]
Duration
T90: 64 +/- 16
Measured from: -15.527999997139
to: 48.472000002861 [s; relative to TRIGTIME]
T50: 32 +/- 16
Measured from: 0.472000002861023
to: 32.472000002861 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 39.972000002861
to: 40.972000002861 [s; relative to TRIGTIME]
Total Fluence
Measured from: -15.527999997139
to: 64.472000002861 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.998048 4.580810 3.714740 1.071555
0.129457 0.141077 0.127265 0.109066 [error]
Peak 0.285227 0.438616 0.293792 0.066468
0.012097 0.014240 0.012332 0.007959 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 80.000 -15.528 64.472
T90 64.000 -15.528 48.472
T50 32.000 0.472 32.472
Peak 1.000 39.972 40.972
====== 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 -1.528 -0.064 0.064 - - - 1.10e-02 -3.93e-04 3.93e-04 62.800 57
CPL -1.075 -0.260 0.276 111.630 -23.075 73.996 1.78e-02 -4.22e-03 5.92e-03 53.600 56
=== 1-s peak 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 -1.652 -0.068 0.068 - - - 7.15e-02 -2.92e-03 2.92e-03 58.060 57
CPL -0.945 -0.301 0.324 75.372 -9.964 20.024 1.61e-01 -4.64e-02 7.17e-02 40.380 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 1.15e-06 2.08e-06 2.89e-06 8.35e-06 8.31e-06 1.45e-05 erg/cm2
90%_error_low -7.68e-08 -8.37e-08 -1.27e-07 -7.88e-07 -3.13e-07 -8.72e-07 erg/cm2
90%_error_hi 7.87e-08 8.34e-08 1.27e-07 8.39e-07 3.13e-07 9.12e-07 erg/cm2
Peak flux PL 3.41e+00 3.13e+00 1.99e+00 1.95e+00 9.34e+00 1.05e+01 ph/cm2/s
90%_error_low -2.31e-01 -1.34e-01 -1.01e-01 -1.91e-01 -3.91e-01 -4.17e-01 ph/cm2/s
90%_error_hi 2.36e-01 1.34e-01 1.00e-01 2.03e-01 3.91e-01 4.17e-01 ph/cm2/s
Fluence CPL 1.04e-06 2.15e-06 3.01e-06 4.80e-06 8.11e-06 1.10e-05 erg/cm2
90%_error_low -9.70e-08 -9.34e-08 -1.46e-07 -1.21e-06 -3.36e-07 -1.25e-06 erg/cm2
90%_error_hi 9.92e-08 9.42e-08 1.48e-07 1.73e-06 3.36e-07 1.73e-06 erg/cm2
Peak flux CPL 2.98e+00 3.33e+00 2.12e+00 9.83e-01 9.04e+00 9.40e+00 ph/cm2/s
90%_error_low -2.81e-01 -1.60e-01 -1.17e-01 -2.37e-01 -4.08e-01 -4.86e-01 ph/cm2/s
90%_error_hi 2.87e-01 1.62e-01 1.18e-01 3.14e-01 4.08e-01 5.13e-01 ph/cm2/s
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