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: Fri Feb 2 16:01:01 EST 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger804692
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Trigger: 00804692 Segment: 000
BAT Trigger Time: 537381746.688 [s; MET]
Trigger Stop: 537381746.944 [s; MET]
UTC: 2018-01-11T16:42:06.387380 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 149.84082869691 Dec: 48.2647072728262 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.93
Image Trigger?: NO
Rate S/N Ratio: 76.3020314277412 [ if not an image trigger ]
Image S/N Ratio: 10.93
Analysis Position: [ source = BAT ]
RA: 149.84082869691 Dec: 48.2647072728262 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 149.781875138668 Dec: 48.254015645398 [deg; J2000]
{ 09h 59m 07.7s , +48d 15' 14.5" }
+/- 0.666105442273207 [arcmin] (estimated 90% radius based on SNR)
+/- 0.218121391426041 [arcmin] (formal 1-sigma fit error)
SNR: 54.3500357760269
Angular difference between the analysis and refined position is 2.440745 arcmin
Partial Coding Fraction: 0.703125 [ including projection effects ]
Duration
T90: 50.8919999599457 +/- 1.88013615903655
Measured from: 1.78400003910065
to: 52.6759999990463 [s; relative to TRIGTIME]
T50: 22.2639999389648 +/- 0.394400764322609
Measured from: 10.392000079155
to: 32.6560000181198 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 13.8880000114441
to: 14.8880000114441 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.296000003814697
to: 69.5880000591278 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 3.446196 5.306081 4.627286 1.520888
0.057406 0.063303 0.059197 0.048992 [error]
Peak 0.117844 0.200227 0.221808 0.089550
0.008909 0.010716 0.010790 0.008664 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 69.884 -0.296 69.588
T90 50.892 1.784 52.676
T50 22.264 10.392 32.656
Peak 1.000 13.888 14.888
====== 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 -1.280 -0.034 0.034 - - - 1.45e-02 -2.54e-04 2.54e-04 36.880 57
CPL -1.275 -0.034 0.034 9987.990 -9987.990 -9987.990 1.45e-02 -2.51e-04 9.56e-04 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 -0.971 -0.095 0.096 - - - 4.25e-02 -2.28e-03 2.27e-03 52.910 57
CPL -0.958 -0.103 0.353 9967.010 -9967.010 -9967.010 4.28e-02 -2.23e-03 2.28e-03 52.930 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 1.05e-06 2.21e-06 3.64e-06 1.36e-05 1.00e-05 2.05e-05 erg/cm2
90%_error_low -4.14e-08 -5.03e-08 -6.85e-08 -6.18e-07 -1.75e-07 -6.36e-07 erg/cm2
90%_error_hi 4.21e-08 5.03e-08 6.84e-08 6.39e-07 1.75e-07 6.53e-07 erg/cm2
Peak flux PL 4.00e-04 4.86e-03 6.37e-02 5.60e+00 2.39e-01 5.56e+00 ph/cm2/s
90%_error_low 3.81e-05 N/A -2.47e-03 -2.63e-01 N/A -1.59e-01 ph/cm2/s
90%_error_hi 1.14e-04 N/A 7.32e-03 4.23e-01 N/A 5.30e-01 ph/cm2/s
Fluence CPL 1.05e-06 2.21e-06 3.62e-06 1.45e-05 1.01e-05 2.04e-05 erg/cm2
90%_error_low N/A -4.68e-08 N/A N/A -2.18e-07 -1.15e-06 erg/cm2
90%_error_hi N/A 5.38e-08 N/A N/A 1.31e-07 6.15e-07 erg/cm2
Peak flux CPL 1.05e+00 1.46e+00 1.49e+00 2.74e+00 4.89e+00 6.73e+00 ph/cm2/s
90%_error_low -1.52e-01 -9.52e-02 -8.79e-02 -8.89e-01 -2.62e-01 -9.21e-01 ph/cm2/s
90%_error_hi 9.34e-02 1.03e-01 1.08e-01 2.23e-01 2.67e-01 4.07e-01 ph/cm2/s
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