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: Tue Dec 26 15:21:53 EST 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1202522
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Trigger: 01202522 Segment: 000
BAT Trigger Time: 724326477.824 [s; MET]
Trigger Stop: 724326479.872 [s; MET]
UTC: 2023-12-15T09:47:25.273080 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 9.75000608289667 Dec: 57.6422967295133 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.55
Image Trigger?: NO
Rate S/N Ratio: 98.4428768372806 [ if not an image trigger ]
Image S/N Ratio: 9.55
Analysis Position: [ source = BAT ]
RA: 9.75000608289667 Dec: 57.6422967295133 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 9.72981974483865 Dec: 57.6337025644225 [deg; J2000]
{ 00h 38m 55.2s , +57d 38' 01.3" }
+/- 1.29658815140801 [arcmin] (estimated 90% radius based on SNR)
+/- 0.564341848036143 [arcmin] (formal 1-sigma fit error)
SNR: 20.988074460736
Angular difference between the analysis and refined position is 0.828368 arcmin
Partial Coding Fraction: 0.06542969 [ including projection effects ]
Duration
T90: 22.0960000753403 +/- 3.47252532735092
Measured from: -5.79200005531311
to: 16.3040000200272 [s; relative to TRIGTIME]
T50: 7.04000008106232 +/- 1.43260322573292
Measured from: -1.79200005531311
to: 5.24800002574921 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.179999947547913
to: 1.17999994754791 [s; relative to TRIGTIME]
Total Fluence
Measured from: -7.03999996185303
to: 21.1200000047684 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.055800 3.826335 4.786562 2.606511
0.185494 0.213855 0.209811 0.187671 [error]
Peak 0.099387 0.365054 0.570215 0.242444
0.039289 0.050311 0.056179 0.047175 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 28.160 -7.040 21.120
T90 22.096 -5.792 16.304
T50 7.040 -1.792 5.248
Peak 1.000 0.180 1.180
====== 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 -1.031 -0.090 0.092 - - - 3.45e-02 -1.88e-03 1.86e-03 55.810 57
CPL -1.013 -0.106 0.367 9879.710 -9879.710 -9879.710 3.49e-02 -2.16e-03 1.44e-03 55.990 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 -0.920 -0.210 0.219 - - - 8.64e-02 -1.21e-02 1.19e-02 66.970 57
CPL 0.220 -0.983 1.260 124.516 -34.580 320.670 2.45e-01 -1.44e-01 4.61e-01 62.970 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 8.00e-07 1.96e-06 3.84e-06 1.86e-05 1.04e-05 2.52e-05 erg/cm2
90%_error_low -9.14e-08 -1.38e-07 -1.97e-07 -2.13e-06 -5.24e-07 -2.19e-06 erg/cm2
90%_error_hi 9.57e-08 1.37e-07 1.97e-07 2.32e-06 5.25e-07 2.35e-06 erg/cm2
Peak flux PL 1.26e-04 1.69e-03 4.31e-02 3.63e+00 1.03e-01 2.38e+00 ph/cm2/s
90%_error_low N/A N/A 3.14e-03 3.88e-01 N/A 1.69e+00 ph/cm2/s
90%_error_hi N/A N/A 1.09e-01 6.22e+00 N/A 7.63e+00 ph/cm2/s
Fluence CPL 7.98e-07 2.03e-06 3.85e-06 1.84e-05 1.04e-05 2.50e-05 erg/cm2
90%_error_low -1.24e-07 -1.85e-07 -2.01e-07 -5.99e-06 -5.20e-07 -5.91e-06 erg/cm2
90%_error_hi 6.97e-08 7.36e-08 2.67e-07 1.33e-06 5.12e-07 1.30e-06 erg/cm2
Peak flux CPL 2.06e-05 2.21e-04 1.20e-02 1.60e+00 2.36e-02 1.65e+00 ph/cm2/s
90%_error_low -2.06e-05 -2.21e-04 -1.20e-02 -1.60e+00 -2.36e-02 -1.65e+00 ph/cm2/s
90%_error_hi -2.06e-05 -2.21e-04 -1.20e-02 -1.60e+00 -2.36e-02 -1.65e+00 ph/cm2/s
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