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 v2.48
Process Start Time: Wed Jun 14 12:28:24 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1121751
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Trigger: 01121751 Segment: 000
BAT Trigger Time: 683207751.488 [s; MET]
Trigger Stop: 683207752 [s; MET]
UTC: 2022-08-26T11:55:21.742040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 206.43146700875 Dec: -44.0445504797927 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.45
Image Trigger?: NO
Rate S/N Ratio: 16.4924225024706 [ if not an image trigger ]
Image S/N Ratio: 7.45
Analysis Position: [ source = BAT ]
RA: 206.43146700875 Dec: -44.0445504797927 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 206.427770035127 Dec: -44.0390330797788 [deg; J2000]
{ 13h 45m 42.7s , -44d 02' 20.5" }
+/- 1.07720523462353 [arcmin] (estimated 90% radius based on SNR)
+/- 0.284688725264023 [arcmin] (formal 1-sigma fit error)
SNR: 27.3512846756338
Angular difference between the analysis and refined position is 0.367443 arcmin
Partial Coding Fraction: 0.921875 [ including projection effects ]
Duration
T90: 11.1399999856949 +/- 1.0195685291616
Measured from: 0.25599992275238
to: 11.3959999084473 [s; relative to TRIGTIME]
T50: 5.9799998998642 +/- 0.475785645942125
Measured from: 1.76800000667572
to: 7.74799990653992 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 6.57999992370605
to: 7.57999992370605 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.200000047683716
to: 13.0080000162125 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.483659 0.681670 0.528291 0.101546
0.029087 0.031182 0.028694 0.027738 [error]
Peak 0.056414 0.124926 0.113121 0.038625
0.008635 0.009931 0.009272 0.008666 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 13.208 -0.200 13.008
T90 11.140 0.256 11.396
T50 5.980 1.768 7.748
Peak 1.000 6.580 7.580
====== 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 -1.439 -0.097 0.097 - - - 9.18e-03 -4.88e-04 4.86e-04 59.950 57
CPL -1.306 -0.183 0.395 265.724 -265.724 -265.724 1.07e-02 -1.92e-03 5.87e-03 59.580 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 -1.105 -0.151 0.154 - - - 2.25e-02 -1.95e-03 1.95e-03 62.370 57
CPL -0.859 -0.320 0.674 250.851 -250.851 -250.851 2.94e-02 -8.55e-03 3.07e-02 61.890 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 1.46e-07 2.79e-07 4.11e-07 1.30e-06 1.16e-06 2.14e-06 erg/cm2
90%_error_low -1.38e-08 -1.57e-08 -2.86e-08 -1.90e-07 -6.88e-08 -2.12e-07 erg/cm2
90%_error_hi 1.42e-08 1.56e-08 2.85e-08 2.12e-07 6.92e-08 2.30e-07 erg/cm2
Peak flux PL 6.35e-01 8.09e-01 7.53e-01 1.23e+00 2.61e+00 3.43e+00 ph/cm2/s
90%_error_low -1.05e-01 -8.38e-02 -7.53e-02 -2.45e-01 -2.30e-01 -3.23e-01 ph/cm2/s
90%_error_hi 1.11e-01 8.27e-02 7.46e-02 2.83e-01 2.30e-01 3.32e-01 ph/cm2/s
Fluence CPL 1.43e-07 2.82e-07 4.15e-07 1.05e-06 1.15e-06 1.89e-06 erg/cm2
90%_error_low -1.68e-08 -1.76e-08 -3.01e-08 -4.50e-07 -7.84e-08 -4.54e-07 erg/cm2
90%_error_hi 1.41e-08 1.84e-08 3.06e-08 2.76e-07 7.69e-08 3.16e-07 erg/cm2
Peak flux CPL 6.02e-01 8.25e-01 7.72e-01 9.29e-01 2.59e+00 3.13e+00 ph/cm2/s
90%_error_low -1.31e-01 -8.95e-02 -8.79e-02 -4.42e-01 -2.40e-01 -5.12e-01 ph/cm2/s
90%_error_hi 1.18e-01 9.45e-02 8.99e-02 3.77e-01 2.39e-01 4.74e-01 ph/cm2/s
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