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: Wed Nov 27 12:09:35 EST 2019
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger930285
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Trigger: 00930285 Segment: 000
BAT Trigger Time: 593190777.408 [s; MET]
Trigger Stop: 593190777.664 [s; MET]
UTC: 2019-10-19T15:12:33.632500 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 340.038362226781 Dec: -17.3332351323859 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.94
Image Trigger?: NO
Rate S/N Ratio: 24.1867732448956 [ if not an image trigger ]
Image S/N Ratio: 10.94
Analysis Position: [ source = BAT ]
RA: 340.038362226781 Dec: -17.3332351323859 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 340.034688608033 Dec: -17.3399630861776 [deg; J2000]
{ 22h 40m 08.3s , -17d 20' 23.9" }
+/- 0.638786550908101 [arcmin] (estimated 90% radius based on SNR)
+/- 0.199005274414667 [arcmin] (formal 1-sigma fit error)
SNR: 57.7007654464149
Angular difference between the analysis and refined position is 0.455220 arcmin
Partial Coding Fraction: 0.4648438 [ including projection effects ]
Duration
T90: 64.3479999303818 +/- 4.44964942613322
Measured from: 1.3400000333786
to: 65.6879999637604 [s; relative to TRIGTIME]
T50: 30.4759999513626 +/- 1.03064250738057
Measured from: 10.2080000638962
to: 40.6840000152588 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.136000037193298
to: 0.863999962806702 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.827999949455261
to: 84.3200000524521 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 7.156225 7.306946 3.424957 0.741654
0.111709 0.115083 0.098068 0.088420 [error]
Peak 0.184185 0.248313 0.163079 0.004535
0.014428 0.015552 0.013351 0.010273 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 85.148 -0.828 84.320
T90 64.348 1.340 65.688
T50 30.476 10.208 40.684
Peak 1.000 -0.136 0.864
====== 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 -2.255 -0.053 0.053 - - - 1.29e-02 -3.50e-04 3.49e-04 58.030 57
CPL -1.986 1.986 0.186 2.547 -1.569 -1.046 1.76e-02 -9.79e-04 8.70e-04 54.550 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 -1.876 -0.127 0.123 - - - 4.01e-02 -3.27e-03 3.24e-03 48.570 57
CPL -0.805 -0.560 0.637 53.522 -7.375 11.843 1.45e-01 -7.02e-02 1.65e-01 36.800 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 2.87e-06 3.34e-06 2.80e-06 3.96e-06 1.04e-05 1.30e-05 erg/cm2
90%_error_low -1.32e-07 -8.69e-08 -1.06e-07 -3.18e-07 -2.59e-07 -4.04e-07 erg/cm2
90%_error_hi 1.35e-07 8.68e-08 1.06e-07 3.37e-07 2.60e-07 4.13e-07 erg/cm2
Peak flux PL 2.37e+00 1.91e+00 1.04e+00 8.31e-01 5.70e+00 6.16e+00 ph/cm2/s
90%_error_low -2.64e-01 -1.43e-01 -1.08e-01 -1.57e-01 -4.29e-01 -4.51e-01 ph/cm2/s
90%_error_hi 2.73e-01 1.42e-01 1.08e-01 1.75e-01 4.30e-01 4.51e-01 ph/cm2/s
Fluence CPL N/A N/A N/A N/A N/A N/A erg/cm2
90%_error_low -1.32e-07 -8.69e-08 -1.06e-07 -3.18e-07 -2.59e-07 -4.04e-07 erg/cm2
90%_error_hi 1.35e-07 8.68e-08 1.06e-07 3.37e-07 2.60e-07 4.13e-07 erg/cm2
Peak flux CPL 1.99e+00 2.12e+00 1.12e+00 3.12e-01 5.47e+00 5.54e+00 ph/cm2/s
90%_error_low -3.18e-01 -1.80e-01 -1.27e-01 -1.29e-01 -4.44e-01 -4.70e-01 ph/cm2/s
90%_error_hi 3.26e-01 1.84e-01 1.28e-01 2.01e-01 4.45e-01 4.83e-01 ph/cm2/s
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