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 11:59:05 EST 2019
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger932608
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Trigger: 00932608 Segment: 000
BAT Trigger Time: 594249834.976 [s; MET]
Trigger Stop: 594249835.04 [s; MET]
UTC: 2019-10-31T21:23:31.132400 [includes UTCF correction]
Where From?: (*SHORT BURST*) TDRSS scaled map message
BAT
RA: 283.275055137207 Dec: 47.6387522535621 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.55
Image Trigger?: NO
Rate S/N Ratio: 82.8613299434664 [ if not an image trigger ]
Image S/N Ratio: 8.55
Analysis Position: [ source = BAT ]
RA: 283.275055137207 Dec: 47.6387522535621 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 283.269426912568 Dec: 47.6446910308396 [deg; J2000]
{ 18h 53m 04.7s , +47d 38' 40.9" }
+/- 1.34798738681865 [arcmin] (estimated 90% radius based on SNR)
+/- 0.630975961294118 [arcmin] (formal 1-sigma fit error)
SNR: 19.8542236942298
Angular difference between the analysis and refined position is 0.422773 arcmin
Partial Coding Fraction: 0.375 [ including projection effects ]
Duration
T90: 0.287999987602234 +/- 0.0468188385078391
Measured from: -0.0199999809265137
to: 0.26800000667572 [s; relative to TRIGTIME]
T50: 0.143999934196472 +/- 0.0252982725496578
Measured from: 0.0160000324249268
to: 0.159999966621399 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.359999895095825
to: 0.640000104904175 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.031999945640564
to: 0.308000087738037 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.069202 0.161220 0.189867 0.124106
0.010166 0.013253 0.015697 0.015095 [error]
Peak 0.077133 0.162545 0.192140 0.132245
0.014161 0.016612 0.017961 0.017524 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 0.340 -0.032 0.308
T90 0.288 -0.020 0.268
T50 0.144 0.016 0.160
Peak 1.000 -0.360 0.640
====== 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 -0.811 -0.151 0.156 - - - 1.03e-01 -9.04e-03 8.99e-03 59.500 57
CPL -0.739 -0.218 0.333 972.137 -972.137 -972.137 1.11e-01 -1.66e-02 3.63e-02 59.930 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 -0.858 -0.186 0.194 - - - 3.66e-02 -3.84e-03 3.80e-03 56.260 57
CPL -0.863 -0.177 0.336 9999.360 -9999.360 -9999.360 3.69e-02 -4.13e-03 1.29e-02 56.320 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 2.35e-08 6.62e-08 1.51e-07 9.23e-07 4.07e-07 1.16e-06 erg/cm2
90%_error_low -4.16e-09 -7.18e-09 -1.43e-08 -1.89e-07 -3.90e-08 -1.98e-07 erg/cm2
90%_error_hi 4.40e-09 7.05e-09 1.42e-08 2.23e-07 3.92e-08 2.28e-07 erg/cm2
Peak flux PL 3.41e-04 4.15e-03 4.61e-02 4.37e+00 2.07e-01 4.42e+00 ph/cm2/s
90%_error_low -7.51e-05 -8.59e-04 -8.87e-03 -1.13e+00 -3.84e-02 -1.14e+00 ph/cm2/s
90%_error_hi 7.11e-04 7.04e-03 6.16e-02 2.73e+00 2.45e-01 2.80e+00 ph/cm2/s
Fluence CPL 2.35e-08 6.62e-08 1.48e-07 9.79e-07 4.10e-07 1.15e-06 erg/cm2
90%_error_low N/A N/A N/A -4.28e-07 N/A -3.56e-07 erg/cm2
90%_error_hi N/A N/A N/A 3.57e-08 N/A 1.02e-07 erg/cm2
Peak flux CPL 8.16e-01 1.21e+00 1.33e+00 3.06e+00 4.24e+00 6.09e+00 ph/cm2/s
90%_error_low N/A -1.75e-01 -1.37e-01 -1.17e+00 -4.70e-01 -8.89e-01 ph/cm2/s
90%_error_hi N/A 1.66e-01 1.52e-01 4.21e-01 4.01e-01 6.67e-01 ph/cm2/s
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