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 v2.47
Process Start Time: Mon Jun 29 15:01:12 EDT 2020
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger973140
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Trigger: 00973140 Segment: 000
BAT Trigger Time: 611580048.704 [s; MET]
Trigger Stop: 611580049.216 [s; MET]
UTC: 2020-05-19T11:20:23.737180 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 255.333724559987 Dec: -30.3801063280011 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.13
Image Trigger?: NO
Rate S/N Ratio: 25.298221281347 [ if not an image trigger ]
Image S/N Ratio: 11.13
Analysis Position: [ source = BAT ]
RA: 255.333724559987 Dec: -30.3801063280011 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 255.320454055665 Dec: -30.3938971451017 [deg; J2000]
{ 17h 01m 16.9s , -30d 23' 38.0" }
+/- 0.847473132996253 [arcmin] (estimated 90% radius based on SNR)
+/- 0.296416639786795 [arcmin] (formal 1-sigma fit error)
SNR: 38.529698459602
Angular difference between the analysis and refined position is 1.075377 arcmin
Partial Coding Fraction: 0.9921875 [ including projection effects ]
Duration
T90: 71.6959999799728 +/- 1.20481696025365
Measured from: 3.24800002574921
to: 74.944000005722 [s; relative to TRIGTIME]
T50: 5.77199995517731 +/- 0.249735854854711
Measured from: 21.8040000200272
to: 27.5759999752045 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 23.527999997139
to: 24.527999997139 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.452000021934509
to: 100.703999996185 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 5.062228 7.095986 5.637772 1.432913
0.075752 0.072158 0.062951 0.049236 [error]
Peak 0.548175 0.923295 0.963818 0.280682
0.013064 0.016032 0.016750 0.011741 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 101.156 -0.452 100.704
T90 71.696 3.248 74.944
T50 5.772 21.804 27.576
Peak 1.000 23.528 24.528
====== 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 -1.429 -0.031 0.031 - - - 1.22e-02 -1.99e-04 1.98e-04 42.720 57
CPL -1.365 -0.076 0.126 599.852 -599.852 -599.852 1.29e-02 -4.93e-04 1.62e-03 41.960 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 -1.076 -0.040 0.040 - - - 1.78e-01 -3.87e-03 3.87e-03 48.810 57
CPL -0.836 -0.160 0.165 292.702 -93.826 419.372 2.25e-01 -3.14e-02 3.77e-02 42.120 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 1.47e-06 2.83e-06 4.20e-06 1.34e-05 1.18e-05 2.19e-05 erg/cm2
90%_error_low -5.36e-08 -5.96e-08 -7.45e-08 -5.70e-07 -1.90e-07 -5.88e-07 erg/cm2
90%_error_hi 5.45e-08 5.95e-08 7.43e-08 5.87e-07 1.90e-07 6.02e-07 erg/cm2
Peak flux PL 4.90e+00 6.35e+00 6.02e+00 1.01e+01 2.06e+01 2.74e+01 ph/cm2/s
90%_error_low -2.28e-01 -1.77e-01 -1.41e-01 -5.21e-01 -4.66e-01 -6.23e-01 ph/cm2/s
90%_error_hi 2.32e-01 1.77e-01 1.40e-01 5.38e-01 4.67e-01 6.26e-01 ph/cm2/s
Fluence CPL 1.44e-06 2.83e-06 4.23e-06 1.24e-05 1.18e-05 2.09e-05 erg/cm2
90%_error_low -7.52e-08 -6.03e-08 -8.84e-08 -1.69e-06 -2.06e-07 -1.69e-06 erg/cm2
90%_error_hi 7.11e-08 6.03e-08 9.00e-08 1.28e-06 2.02e-07 1.17e-06 erg/cm2
Peak flux CPL 4.55e+00 6.38e+00 6.19e+00 8.10e+00 2.04e+01 2.52e+01 ph/cm2/s
90%_error_low -3.11e-01 -1.82e-01 -1.80e-01 -1.08e+00 -4.98e-01 -1.24e+00 ph/cm2/s
90%_error_hi 3.18e-01 1.82e-01 1.81e-01 1.29e+00 5.00e-01 1.42e+00 ph/cm2/s
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