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: Mon Oct 24 11:34:57 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1115766
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Trigger: 01115766 Segment: 000
BAT Trigger Time: 679256218.176 [s; MET]
Trigger Stop: 679256219.2 [s; MET]
UTC: 2022-07-11T18:16:28.698520 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 261.993124762887 Dec: 24.6695933765762 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.6
Image Trigger?: NO
Rate S/N Ratio: 20.3715487874634 [ if not an image trigger ]
Image S/N Ratio: 9.6
Analysis Position: [ source = BAT ]
RA: 261.993124762887 Dec: 24.6695933765762 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 262.017940308421 Dec: 24.6750002115334 [deg; J2000]
{ 17h 28m 04.3s , +24d 40' 30.0" }
+/- 1.27242467600038 [arcmin] (estimated 90% radius based on SNR)
+/- 0.571123707529293 [arcmin] (formal 1-sigma fit error)
SNR: 21.5597626819381
Angular difference between the analysis and refined position is 1.391357 arcmin
Partial Coding Fraction: 0.1953125 [ including projection effects ]
Duration
T90: 87.055999994278 +/- 9.32164452855154
Measured from: -29.7519999742508
to: 57.3040000200272 [s; relative to TRIGTIME]
T50: 29.5360000133514 +/- 15.1248161917351
Measured from: -1.94400000572205
to: 27.5920000076294 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.0199999809265137
to: 0.980000019073486 [s; relative to TRIGTIME]
Total Fluence
Measured from: -37.4960000514984
to: 79.6879999637604 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.815780 3.794684 2.333959 0.579195
0.128060 0.131831 0.112694 0.093472 [error]
Peak 0.048944 0.163606 0.139369 0.047999
0.016263 0.018449 0.016296 0.013147 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 117.184 -37.496 79.688
T90 87.056 -29.752 57.304
T50 29.536 -1.944 27.592
Peak 1.000 -0.020 0.980
====== 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: N/A)
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 -1.738 -0.080 0.080 - - - 5.33e-03 -2.41e-04 2.40e-04 53.550 57
CPL -1.488 -0.282 0.327 100.165 -32.130 -100.165 7.15e-03 -1.94e-03 3.28e-03 51.600 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
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 -1.436 -0.192 0.190 - - - 2.48e-02 -3.40e-03 3.40e-03 88.190 57
CPL 0.162 -0.871 1.102 76.115 -13.830 28.115 1.37e-01 -8.15e-02 2.90e-01 76.990 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 9.97e-07 1.59e-06 1.90e-06 4.45e-06 5.77e-06 8.94e-06 erg/cm2
90%_error_low -7.40e-08 -7.13e-08 -1.15e-07 -5.51e-07 -2.70e-07 -6.46e-07 erg/cm2
90%_error_hi 7.57e-08 7.11e-08 1.15e-07 6.02e-07 2.71e-07 6.83e-07 erg/cm2
Peak flux PL 9.60e-01 1.00e+00 7.41e-01 8.84e-01 3.04e+00 3.59e+00 ph/cm2/s
90%_error_low -2.07e-01 -1.52e-01 -1.14e-01 -2.31e-01 -4.35e-01 -4.93e-01 ph/cm2/s
90%_error_hi 2.20e-01 1.51e-01 1.13e-01 2.64e-01 4.36e-01 4.93e-01 ph/cm2/s
Fluence CPL 9.57e-07 1.62e-06 1.92e-06 3.03e-06 5.65e-06 7.53e-06 erg/cm2
90%_error_low -8.81e-08 -8.47e-08 -1.20e-07 -1.09e-06 -3.08e-07 -1.13e-06 erg/cm2
90%_error_hi 8.96e-08 8.61e-08 1.21e-07 1.60e-06 3.07e-07 1.67e-06 erg/cm2
Peak flux CPL 6.70e-01 1.14e+00 9.30e-01 3.30e-01 2.99e+00 3.07e+00 ph/cm2/s
90%_error_low -2.36e-01 -1.88e-01 -1.56e-01 -1.60e-01 -4.37e-01 -4.67e-01 ph/cm2/s
90%_error_hi 2.58e-01 1.92e-01 1.61e-01 2.38e-01 4.39e-01 4.81e-01 ph/cm2/s
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