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 14:57:17 EDT 2020
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger973628
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Trigger: 00973628 Segment: 000
BAT Trigger Time: 611840519.104 [s; MET]
Trigger Stop: 611840519.232 [s; MET]
UTC: 2020-05-22T11:41:34.120260 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 5.6665227392278 Dec: -0.281632466181719 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.79
Image Trigger?: NO
Rate S/N Ratio: 30.6267856622271 [ if not an image trigger ]
Image S/N Ratio: 9.79
Analysis Position: [ source = BAT ]
RA: 5.6665227392278 Dec: -0.281632466181719 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 5.66782439003557 Dec: -0.263856485130308 [deg; J2000]
{ 00h 22m 40.3s , -00d 15' 49.9" }
+/- 1.59272349933067 [arcmin] (estimated 90% radius based on SNR)
+/- 0.642255218385053 [arcmin] (formal 1-sigma fit error)
SNR: 15.6439492161112
Angular difference between the analysis and refined position is 1.069414 arcmin
Partial Coding Fraction: 0.8671875 [ including projection effects ]
Duration
T90: 0.615999937057495 +/- 0.0785875019843526
Measured from: -0.00399994850158691
to: 0.611999988555908 [s; relative to TRIGTIME]
T50: 0.375999927520752 +/- 0.0519999724168052
Measured from: 0.0520000457763672
to: 0.427999973297119 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.169999957084656
to: 0.830000042915344 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0159999132156372
to: 0.672000050544739 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.045601 0.069664 0.051853 0.016226
0.005911 0.006551 0.005889 0.004600 [error]
Peak 0.046536 0.072450 0.053824 0.019442
0.006831 0.007474 0.006629 0.005261 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 0.688 -0.016 0.672
T90 0.616 -0.004 0.612
T50 0.376 0.052 0.428
Peak 1.000 -0.170 0.830
====== 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 -1.452 -0.171 0.169 - - - 1.68e-02 -1.83e-03 1.82e-03 38.930 57
CPL -0.535 -0.695 0.830 77.764 -18.375 86.738 5.04e-02 -2.80e-02 8.34e-02 33.590 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 -1.412 -0.184 0.183 - - - 1.22e-02 -1.42e-03 1.42e-03 47.540 57
CPL -0.602 -0.742 0.856 84.088 -23.177 204.322 3.22e-02 -1.82e-02 5.63e-02 43.650 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 1.41e-08 2.67e-08 3.91e-08 1.22e-07 1.11e-07 2.02e-07 erg/cm2
90%_error_low -2.32e-09 -2.90e-09 -5.42e-09 -3.15e-08 -1.33e-08 -3.69e-08 erg/cm2
90%_error_hi 2.40e-09 2.89e-09 5.40e-09 3.79e-08 1.34e-08 4.20e-08 erg/cm2
Peak flux PL 4.62e-01 4.89e-01 3.68e-01 4.48e-01 1.49e+00 1.77e+00 ph/cm2/s
90%_error_low -8.48e-02 -5.95e-02 -5.23e-02 -1.15e-01 -1.71e-01 -2.08e-01 ph/cm2/s
90%_error_hi 8.87e-02 5.91e-02 5.19e-02 1.36e-01 1.72e-01 2.10e-01 ph/cm2/s
Fluence CPL 1.24e-08 2.98e-08 4.11e-08 3.67e-08 1.04e-07 1.20e-07 erg/cm2
90%_error_low -2.68e-09 -3.73e-09 -6.22e-09 -2.08e-08 -1.42e-08 -2.50e-08 erg/cm2
90%_error_hi 2.74e-09 3.89e-09 6.26e-09 5.08e-08 1.44e-08 5.07e-08 erg/cm2
Peak flux CPL 4.08e-01 5.35e-01 3.91e-01 1.90e-01 1.46e+00 1.52e+00 ph/cm2/s
90%_error_low -9.69e-02 -7.30e-02 -5.98e-02 -1.03e-01 -1.74e-01 -2.05e-01 ph/cm2/s
90%_error_hi 1.00e-01 7.62e-02 6.09e-02 2.14e-01 1.74e-01 2.50e-01 ph/cm2/s
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