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 6 18:39:07 EDT 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger846299
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Trigger: 00846299 Segment: 000
BAT Trigger Time: 552498096 [s; MET]
Trigger Stop: 552498168 [s; MET]
UTC: 2018-07-05T15:41:14.784440 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 212.594468636216 Dec: -11.6304515042116 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.79
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.79
Analysis Position: [ source = BAT ]
RA: 212.594468636216 Dec: -11.6304515042116 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 212.604737896368 Dec: -11.6383934900967 [deg; J2000]
{ 14h 10m 25.1s , -11d 38' 18.2" }
+/- 2.16622816361217 [arcmin] (estimated 90% radius based on SNR)
+/- 1.06930262511626 [arcmin] (formal 1-sigma fit error)
SNR: 10.0818667794077
Angular difference between the analysis and refined position is 0.768946 arcmin
Partial Coding Fraction: 0.3632812 [ including projection effects ]
Duration
T90: 106.783999919891 +/- 16.2025474954939
Measured from: 3.85199999809265
to: 110.635999917984 [s; relative to TRIGTIME]
T50: 61.4479999542236 +/- 25.6790887087807
Measured from: 27.4759999513626
to: 88.9239999055862 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 3.26400005817413
to: 4.26400005817413 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.259999990463257
to: 133.044000029564 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.831787 1.068405 1.010230 0.118613
0.141337 0.136047 0.115837 0.097438 [error]
Peak 0.029511 0.023555 0.040761 0.011007
0.012368 0.011611 0.011380 0.009419 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 132.784 0.260 133.044
T90 106.784 3.852 110.636
T50 61.448 27.476 88.924
Peak 1.000 3.264 4.264
====== 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 -1.625 -0.219 0.216 - - - 1.65e-03 -2.10e-04 2.09e-04 52.320 57
CPL -1.123 -0.669 1.038 90.820 -38.009 -90.820 2.90e-03 -9.28e-04 6.12e-03 51.360 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 -1.745 -0.853 0.704 - - - 5.91e-03 -2.73e-03 2.55e-03 42.320 57
CPL -0.808 -1.424 8.089 69.617 -69.617 -69.617 1.62e-02 -1.62e-02 8.92e+00 41.980 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 3.14e-07 5.35e-07 6.93e-07 1.82e-06 2.04e-06 3.36e-06 erg/cm2
90%_error_low -6.70e-08 -7.26e-08 -1.11e-07 -5.53e-07 -2.71e-07 -6.52e-07 erg/cm2
90%_error_hi 7.14e-08 7.18e-08 1.10e-07 6.91e-07 2.72e-07 7.54e-07 erg/cm2
Peak flux PL 3.08e-01 2.68e-01 1.60e-01 1.44e-01 7.97e-01 8.79e-01 ph/cm2/s
90%_error_low -1.78e-01 -1.13e-01 -9.06e-02 -1.44e-01 -3.28e-01 -3.55e-01 ph/cm2/s
90%_error_hi 2.19e-01 1.11e-01 8.84e-02 2.16e-01 3.31e-01 3.57e-01 ph/cm2/s
Fluence CPL 2.85e-07 5.60e-07 7.22e-07 9.54e-07 1.99e-06 2.52e-06 erg/cm2
90%_error_low -8.23e-08 -8.44e-08 -1.24e-07 -6.05e-07 -2.91e-07 -6.79e-07 erg/cm2
90%_error_hi 8.57e-08 8.78e-08 1.28e-07 1.06e-06 2.89e-07 1.14e-06 erg/cm2
Peak flux CPL 2.47e-01 2.85e-01 1.79e-01 7.24e-02 7.59e-01 7.81e-01 ph/cm2/s
90%_error_low -2.47e-01 -1.32e-01 -1.79e-01 -7.24e-02 N/A -3.91e-01 ph/cm2/s
90%_error_hi 2.67e-01 1.31e-01 1.27e-01 1.23e-01 N/A 4.24e-01 ph/cm2/s
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