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 14:57:14 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1167266
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Trigger: 01167266 Segment: 000
BAT Trigger Time: 705069949.952 [s; MET]
Trigger Stop: 705069950.08 [s; MET]
UTC: 2023-05-06T12:45:18.718180 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 326.992980588766 Dec: 44.5403527391438 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.5
Image Trigger?: NO
Rate S/N Ratio: 32.9241552663087 [ if not an image trigger ]
Image S/N Ratio: 9.5
Analysis Position: [ source = BAT ]
RA: 326.992980588766 Dec: 44.5403527391438 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 326.985868732122 Dec: 44.5141426681885 [deg; J2000]
{ 21h 47m 56.6s , +44d 30' 50.9" }
+/- 1.21574348727153 [arcmin] (estimated 90% radius based on SNR)
+/- 0.43333938036842 [arcmin] (formal 1-sigma fit error)
SNR: 23.0099455937413
Angular difference between the analysis and refined position is 1.601758 arcmin
Partial Coding Fraction: 0.734375 [ including projection effects ]
Duration
T90: 61.539999961853 +/- 10.8925583836745
Measured from: 2.62399995326996
to: 64.163999915123 [s; relative to TRIGTIME]
T50: 21.5359998941422 +/- 3.96879016687736
Measured from: 10.9919999837875
to: 32.5279998779297 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 10.6039999723434
to: 11.6039999723434 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.0239999294281006
to: 76.2960000038147 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.209569 1.717474 1.312353 0.443115
0.096711 0.095553 0.078766 0.067627 [error]
Peak 0.131856 0.212727 0.195473 0.053052
0.014822 0.016330 0.015639 0.012442 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 76.272 0.024 76.296
T90 61.540 2.624 64.164
T50 21.536 10.992 32.528
Peak 1.000 10.604 11.604
====== 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 -1.410 -0.112 0.113 - - - 3.96e-03 -2.37e-04 2.37e-04 39.430 57
CPL -1.411 -0.109 0.201 9999.360 -9999.360 -9999.360 3.97e-03 -2.32e-04 1.28e-03 39.460 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 -1.276 -0.140 0.140 - - - 3.89e-02 -3.23e-03 3.22e-03 47.760 57
CPL -0.790 -0.537 0.647 126.449 -46.241 -126.449 6.82e-02 -3.06e-02 7.29e-02 45.610 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 3.54e-07 6.88e-07 1.04e-06 3.38e-06 2.91e-06 5.45e-06 erg/cm2
90%_error_low -4.04e-08 -4.63e-08 -7.87e-08 -5.48e-07 -1.91e-07 -6.01e-07 erg/cm2
90%_error_hi 4.19e-08 4.60e-08 7.83e-08 6.22e-07 1.92e-07 6.61e-07 erg/cm2
Peak flux PL 1.29e+00 1.49e+00 1.23e+00 1.70e+00 4.63e+00 5.71e+00 ph/cm2/s
90%_error_low -1.84e-01 -1.34e-01 -1.25e-01 -3.32e-01 -3.81e-01 -4.99e-01 ph/cm2/s
90%_error_hi 1.92e-01 1.33e-01 1.24e-01 3.79e-01 3.82e-01 5.07e-01 ph/cm2/s
Fluence CPL 3.58e-07 6.84e-07 1.03e-06 3.54e-06 2.92e-06 5.28e-06 erg/cm2
90%_error_low N/A -4.30e-08 -9.27e-08 -1.30e-06 -2.51e-07 -1.01e-06 erg/cm2
90%_error_hi N/A 5.01e-08 1.02e-07 1.17e-07 2.25e-07 8.14e-07 erg/cm2
Peak flux CPL 1.18e+00 1.56e+00 1.28e+00 9.83e-01 4.54e+00 5.00e+00 ph/cm2/s
90%_error_low -2.22e-01 -1.58e-01 -1.41e-01 -4.46e-01 -3.97e-01 -6.11e-01 ph/cm2/s
90%_error_hi 2.28e-01 1.62e-01 1.44e-01 7.67e-01 3.95e-01 9.32e-01 ph/cm2/s
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