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 12:34:54 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1116441
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Trigger: 01116441 Segment: 000
BAT Trigger Time: 679616711.68 [s; MET]
Trigger Stop: 679616712.704 [s; MET]
UTC: 2022-07-15T22:24:42.178080 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 254.88862245431 Dec: -33.5970201018269 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.46
Image Trigger?: NO
Rate S/N Ratio: 24.8596057893121 [ if not an image trigger ]
Image S/N Ratio: 11.46
Analysis Position: [ source = BAT ]
RA: 254.88862245431 Dec: -33.5970201018269 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 254.855500913043 Dec: -33.5838779953871 [deg; J2000]
{ 16h 59m 25.3s , -33d 35' 02.0" }
+/- 1.06660894523745 [arcmin] (estimated 90% radius based on SNR)
+/- 0.489443145922677 [arcmin] (formal 1-sigma fit error)
SNR: 27.7402851202301
Angular difference between the analysis and refined position is 1.833647 arcmin
Partial Coding Fraction: 0.953125 [ including projection effects ]
Duration
T90: 40.4079998731613 +/- 1.21540936134993
Measured from: 0.400000095367432
to: 40.8079999685287 [s; relative to TRIGTIME]
T50: 15.1599999666214 +/- 3.21611759045006
Measured from: 3.75200009346008
to: 18.9120000600815 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.0759999752044678
to: 0.924000024795532 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.148000001907349
to: 42.1720000505447 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.484280 0.719838 0.539314 0.148205
0.043959 0.041835 0.035174 0.029207 [error]
Peak 0.038389 0.055216 0.062142 0.035530
0.006906 0.007035 0.006610 0.005433 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 42.320 -0.148 42.172
T90 40.408 0.400 40.808
T50 15.160 3.752 18.912
Peak 1.000 -0.076 0.924
====== 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 -1.358 -0.112 0.113 - - - 2.89e-03 -1.84e-04 1.84e-04 73.480 57
CPL -1.005 -0.399 0.502 142.557 -56.511 -142.557 4.34e-03 -1.54e-03 3.29e-03 71.690 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 -0.784 -0.233 0.248 - - - 1.13e-02 -1.43e-03 1.39e-03 51.010 57
CPL -0.794 -0.218 0.268 9999.360 -9999.360 -9999.360 1.14e-02 -1.47e-03 1.26e-03 51.090 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 1.37e-07 2.74e-07 4.28e-07 1.47e-06 1.19e-06 2.31e-06 erg/cm2
90%_error_low -1.58e-08 -1.93e-08 -3.38e-08 -2.42e-07 -8.34e-08 -2.67e-07 erg/cm2
90%_error_hi 1.64e-08 1.92e-08 3.37e-08 2.74e-07 8.40e-08 2.93e-07 erg/cm2
Peak flux PL 2.36e-01 3.65e-01 4.23e-01 9.46e-01 1.30e+00 1.97e+00 ph/cm2/s
90%_error_low -6.60e-02 -6.40e-02 -5.08e-02 -2.50e-01 -1.57e-01 -2.65e-01 ph/cm2/s
90%_error_hi 7.39e-02 6.21e-02 5.03e-02 3.14e-01 1.57e-01 2.90e-01 ph/cm2/s
Fluence CPL 1.29e-07 2.84e-07 4.38e-07 8.61e-07 1.16e-06 1.71e-06 erg/cm2
90%_error_low -1.89e-08 -2.30e-08 -3.65e-08 -4.02e-07 -9.64e-08 -4.09e-07 erg/cm2
90%_error_hi 1.93e-08 2.36e-08 3.71e-08 6.54e-07 9.54e-08 6.03e-07 erg/cm2
Peak flux CPL 2.36e-01 3.65e-01 4.24e-01 9.37e-01 1.30e+00 2.08e+00 ph/cm2/s
90%_error_low -6.62e-02 -6.41e-02 -5.08e-02 N/A -1.57e-01 -4.33e-01 ph/cm2/s
90%_error_hi 7.37e-02 6.21e-02 5.05e-02 N/A 1.57e-01 1.75e-01 ph/cm2/s
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