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 May 20 17:12:33 EDT 2019
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger900730
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Trigger: 00900730 Segment: 000
BAT Trigger Time: 578032477.88 [s; MET]
Trigger Stop: 578032477.912 [s; MET]
UTC: 2019-04-27T04:34:15.072360 [includes UTCF correction]
Where From?: (*SHORT BURST*) TDRSS scaled map message
BAT
RA: 280.212789126915 Dec: 40.3223823960134 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.1
Image Trigger?: NO
Rate S/N Ratio: 54.5435605731786 [ if not an image trigger ]
Image S/N Ratio: 11.1
Analysis Position: [ source = BAT ]
RA: 280.212789126915 Dec: 40.3223823960134 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 280.21938424872 Dec: 40.3099655134466 [deg; J2000]
{ 18h 40m 52.7s , +40d 18' 35.9" }
+/- 2.42691235850928 [arcmin] (estimated 90% radius based on SNR)
+/- 0.98772115319082 [arcmin] (formal 1-sigma fit error)
SNR: 8.5711896371427
Angular difference between the analysis and refined position is 0.803791 arcmin
Partial Coding Fraction: 0.6875 [ including projection effects ]
Duration
T90: 0.191999912261963 +/- 0.202385803424389
Measured from: -0.00800001621246338
to: 0.1839998960495 [s; relative to TRIGTIME]
T50: 0.0639998912811279 +/- 0.0640000104904175
Measured from: -0.00800001621246338
to: 0.0559998750686646 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.315999984741211
to: 0.684000015258789 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.00800001621246338
to: 0.312000036239624 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.032781 0.074258 0.056610 0.023577
0.006652 0.007873 0.007595 0.005706 [error]
Peak 0.044859 0.072767 0.061272 0.016136
0.010091 0.010823 0.009891 0.007976 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 0.320 -0.008 0.312
T90 0.192 -0.008 0.184
T50 0.064 -0.008 0.056
Peak 1.000 -0.316 0.684
====== 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 -1.250 -0.212 0.213 - - - 3.79e-02 -4.77e-03 4.76e-03 55.660 57
CPL -1.049 -0.394 0.957 240.147 -240.147 -240.147 4.80e-02 -4.80e-02 9.68e-02 55.480 56
=== 1-s peak 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 -1.290 -0.292 0.297 - - - 1.34e-02 -2.10e-03 2.09e-03 48.850 57
CPL -1.299 -0.283 0.491 9999.360 -9999.360 -9999.360 1.34e-02 -2.05e-03 1.41e-02 48.870 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 1.23e-08 2.63e-08 4.42e-08 1.70e-07 1.21e-07 2.53e-07 erg/cm2
90%_error_low -2.60e-09 -3.54e-09 -7.00e-09 -5.15e-08 -1.74e-08 -5.75e-08 erg/cm2
90%_error_hi 2.74e-09 3.50e-09 6.92e-09 6.48e-08 1.76e-08 6.89e-08 erg/cm2
Peak flux PL 4.52e-01 5.16e-01 4.22e-01 5.77e-01 1.60e+00 1.97e+00 ph/cm2/s
90%_error_low -1.30e-01 -9.28e-02 -8.26e-02 -2.11e-01 -2.53e-01 -3.21e-01 ph/cm2/s
90%_error_hi 1.41e-01 9.01e-02 8.06e-02 2.81e-01 2.54e-01 3.30e-01 ph/cm2/s
Fluence CPL 1.19e-08 2.69e-08 4.49e-08 1.23e-07 1.20e-07 2.07e-07 erg/cm2
90%_error_low -3.02e-09 -4.03e-09 -7.44e-09 -8.74e-08 -1.95e-08 -8.89e-08 erg/cm2
90%_error_hi 2.52e-09 4.55e-09 7.74e-09 8.99e-08 1.83e-08 1.09e-07 erg/cm2
Peak flux CPL 4.52e-01 5.15e-01 4.19e-01 6.43e-01 1.60e+00 1.98e+00 ph/cm2/s
90%_error_low N/A N/A N/A N/A -2.53e-01 -4.19e-01 ph/cm2/s
90%_error_hi N/A N/A N/A N/A 2.54e-01 2.85e-01 ph/cm2/s
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