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 Oct 19 23:36:15 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger998344
======================================================================
Trigger: 00998344 Segment: 000
BAT Trigger Time: 623239157.376 [s; MET]
Trigger Stop: 623239165.568 [s; MET]
UTC: 2020-10-01T09:58:51.646720 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 110.070324685104 Dec: -2.21023113971737 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.08
Image Trigger?: NO
Rate S/N Ratio: 14 [ if not an image trigger ]
Image S/N Ratio: 9.08
Analysis Position: [ source = BAT ]
RA: 110.070324685104 Dec: -2.21023113971737 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 110.050186926441 Dec: -2.2073015459776 [deg; J2000]
{ 07h 20m 12.0s , -02d 12' 26.3" }
+/- 1.84663949713475 [arcmin] (estimated 90% radius based on SNR)
+/- 0.702284928597041 [arcmin] (formal 1-sigma fit error)
SNR: 12.6640464224537
Angular difference between the analysis and refined position is 1.220096 arcmin
Partial Coding Fraction: 0.3867188 [ including projection effects ]
Duration
T90: 15.8880000114441 +/- 3.13463230466351
Measured from: -3.12000000476837
to: 12.7680000066757 [s; relative to TRIGTIME]
T50: 8.44800007343292 +/- 2.32551076713568
Measured from: 2.01599991321564
to: 10.4639999866486 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 10.7879999876022
to: 11.7879999876022 [s; relative to TRIGTIME]
Total Fluence
Measured from: -4.01600003242493
to: 14.2879999876022 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.159187 0.386627 0.416583 0.133774
0.046646 0.050054 0.044923 0.039542 [error]
Peak 0.018948 0.057217 0.041031 0.019273
0.011323 0.011981 0.010621 0.009681 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 18.304 -4.016 14.288
T90 15.888 -3.120 12.768
T50 8.448 2.016 10.464
Peak 1.000 10.788 11.788
====== 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 -0.940 -0.218 0.231 - - - 4.06e-03 -5.45e-04 5.39e-04 56.670 57
CPL -0.143 -0.925 1.203 138.338 -51.727 -138.338 8.87e-03 -8.87e-03 1.81e-02 54.630 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 -1.428 -0.444 0.432 - - - 7.76e-03 -2.25e-03 2.24e-03 57.870 57
CPL 2.918 -3.406 -2.918 56.663 -11.203 31.769 1.02e+00 -1.02e+00 3.04e+03 52.310 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 5.63e-08 1.46e-07 3.04e-07 1.62e-06 8.20e-07 2.13e-06 erg/cm2
90%_error_low -1.48e-08 -2.46e-08 -4.12e-08 -4.49e-07 -1.09e-07 -4.72e-07 erg/cm2
90%_error_hi 1.64e-08 2.42e-08 4.08e-08 5.65e-07 1.10e-07 5.72e-07 erg/cm2
Peak flux PL 2.98e-01 3.13e-01 2.33e-01 2.80e-01 9.51e-01 1.12e+00 ph/cm2/s
90%_error_low -1.27e-01 -9.63e-02 -7.96e-02 -1.50e-01 -2.76e-01 -3.25e-01 ph/cm2/s
90%_error_hi 1.44e-01 9.51e-02 7.87e-02 2.17e-01 2.77e-01 3.29e-01 ph/cm2/s
Fluence CPL 4.51e-08 1.52e-07 3.31e-07 6.77e-07 7.94e-07 1.20e-06 erg/cm2
90%_error_low -1.83e-08 -2.75e-08 -5.18e-08 -3.98e-07 -1.18e-07 -4.07e-07 erg/cm2
90%_error_hi 2.06e-08 2.78e-08 5.32e-08 1.11e-06 1.16e-07 1.10e-06 erg/cm2
Peak flux CPL 9.88e-02 4.09e-01 2.86e-01 1.37e-02 8.06e-01 8.09e-01 ph/cm2/s
90%_error_low -9.88e-02 -1.43e-01 -1.30e-01 -1.37e-02 -2.83e-01 -2.86e-01 ph/cm2/s
90%_error_hi 2.01e-01 1.49e-01 1.16e-01 1.25e-01 3.14e-01 3.20e-01 ph/cm2/s
======================================================================