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 Jul 15 18:56:15 EDT 2019
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger906654
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Trigger: 00906654 Segment: 000
BAT Trigger Time: 581353058.816 [s; MET]
Trigger Stop: 581353059.84 [s; MET]
UTC: 2019-06-04T14:57:15.797160 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 297.586711289614 Dec: -32.9325616929355 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.22
Image Trigger?: NO
Rate S/N Ratio: 15 [ if not an image trigger ]
Image S/N Ratio: 9.22
Analysis Position: [ source = BAT ]
RA: 297.586711289614 Dec: -32.9325616929355 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 297.545241048528 Dec: -32.9748115248214 [deg; J2000]
{ 19h 50m 10.9s , -32d 58' 29.3" }
+/- 1.00088055257068 [arcmin] (estimated 90% radius based on SNR)
+/- 0.336623732055962 [arcmin] (formal 1-sigma fit error)
SNR: 30.3789184002397
Angular difference between the analysis and refined position is 3.284120 arcmin
Partial Coding Fraction: 0.640625 [ including projection effects ]
Duration
T90: 220.175999879837 +/- 4.72111353731662
Measured from: -4.70799994468689
to: 215.46799993515 [s; relative to TRIGTIME]
T50: 132.55999994278 +/- 3.0890283074198
Measured from: 30.2200000286102
to: 162.77999997139 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 157.536000013351
to: 158.536000013351 [s; relative to TRIGTIME]
Total Fluence
Measured from: -39.7760000228882
to: 238.039999961853 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 9.772792 11.383954 7.493327 1.562720
0.173618 0.168877 0.146607 0.127883 [error]
Peak 0.262632 0.316787 0.234964 0.043702
0.013264 0.014488 0.013029 0.008826 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 277.816 -39.776 238.040
T90 220.176 -4.708 215.468
T50 132.560 30.220 162.780
Peak 1.000 157.536 158.536
====== 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 -1.750 -0.044 0.044 - - - 6.67e-03 -1.45e-04 1.45e-04 40.560 57
CPL -1.649 -0.128 0.178 186.252 -111.159 -186.252 7.42e-03 -8.59e-04 1.50e-03 39.560 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 -1.606 -0.095 0.093 - - - 5.22e-02 -2.87e-03 2.85e-03 56.230 57
CPL -1.272 -0.342 0.370 111.075 -34.465 4377.185 7.65e-02 -2.37e-02 3.91e-02 53.440 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 2.99e-06 4.72e-06 5.62e-06 1.30e-05 1.71e-05 2.63e-05 erg/cm2
90%_error_low -1.32e-07 -1.17e-07 -1.60e-07 -8.40e-07 -3.80e-07 -9.21e-07 erg/cm2
90%_error_hi 1.35e-07 1.17e-07 1.60e-07 8.80e-07 3.81e-07 9.50e-07 erg/cm2
Peak flux PL 2.38e+00 2.25e+00 1.48e+00 1.51e+00 6.72e+00 7.61e+00 ph/cm2/s
90%_error_low -2.08e-01 -1.23e-01 -1.05e-01 -2.07e-01 -3.56e-01 -3.99e-01 ph/cm2/s
90%_error_hi 2.14e-01 1.22e-01 1.04e-01 2.26e-01 3.57e-01 4.00e-01 ph/cm2/s
Fluence CPL 2.92e-06 4.75e-06 5.65e-06 1.13e-05 1.70e-05 2.46e-05 erg/cm2
90%_error_low -1.77e-07 -1.24e-07 -1.70e-07 -2.33e-06 -4.52e-07 -2.40e-06 erg/cm2
90%_error_hi 1.74e-07 1.24e-07 1.71e-07 1.07e-06 4.42e-07 2.07e-06 erg/cm2
Peak flux CPL 2.23e+00 2.31e+00 1.52e+00 1.05e+00 6.61e+00 7.11e+00 ph/cm2/s
90%_error_low -2.54e-01 -1.39e-01 -1.15e-01 -3.24e-01 -3.73e-01 -5.18e-01 ph/cm2/s
90%_error_hi 2.59e-01 1.41e-01 1.17e-01 4.91e-01 3.74e-01 6.15e-01 ph/cm2/s
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