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: Sat Mar 9 14:01:15 EST 2024
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1210276
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Trigger: 01210276 Segment: 000
BAT Trigger Time: 727700779.648 [s; MET]
Trigger Stop: 727700791.808 [s; MET]
UTC: 2024-01-23T11:05:46.865580 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 199.318685234124 Dec: 60.6315567695398 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.84
Image Trigger?: NO
Rate S/N Ratio: 15.3297097167559 [ if not an image trigger ]
Image S/N Ratio: 10.84
Analysis Position: [ source = BAT ]
RA: 199.318685234124 Dec: 60.6315567695398 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 199.300349284993 Dec: 60.6125738377784 [deg; J2000]
{ 13h 17m 12.1s , +60d 36' 45.3" }
+/- 2.07476331620391 [arcmin] (estimated 90% radius based on SNR)
+/- 0.912211076837903 [arcmin] (formal 1-sigma fit error)
SNR: 10.7227492573498
Angular difference between the analysis and refined position is 1.260375 arcmin
Partial Coding Fraction: 0.3125 [ including projection effects ]
Duration
T90: 89.8400000333786 +/- 45.5821642158235
Measured from: 0.784000039100647
to: 90.6240000724792 [s; relative to TRIGTIME]
T50: 31.6160000562668 +/- 18.2713274693089
Measured from: 6.97599995136261
to: 38.5920000076294 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.16400003433228
to: 3.16400003433228 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.87199997901917
to: 136.06400001049 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.752776 1.140359 0.575803 0.319678
0.114151 0.118499 0.102244 0.089923 [error]
Peak 0.034505 0.047017 0.030577 0.006197
0.011581 0.012606 0.011756 0.010286 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 137.936 -1.872 136.064
T90 89.840 0.784 90.624
T50 31.616 6.976 38.592
Peak 1.000 2.164 3.164
====== 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 -1.642 -0.226 0.220 - - - 1.30e-03 -1.76e-04 1.73e-04 55.380 57
CPL -1.310 -0.545 1.323 96.870 -53.461 -96.870 1.96e-03 -1.96e-03 8.02e-03 55.100 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 -1.366 -0.567 0.580 - - - 7.73e-03 -2.47e-03 2.44e-03 61.740 57
CPL -1.300 1.300 2.456 484.809 -484.809 -484.809 8.39e-03 -8.39e-03 1.74e-01 61.760 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 2.62e-07 4.41e-07 5.66e-07 1.46e-06 1.67e-06 2.73e-06 erg/cm2
90%_error_low -5.12e-08 -5.56e-08 -1.02e-07 -4.81e-07 -2.39e-07 -5.82e-07 erg/cm2
90%_error_hi 5.35e-08 5.54e-08 1.01e-07 6.17e-07 2.42e-07 6.91e-07 erg/cm2
Peak flux PL 2.80e-01 3.05e-01 2.37e-01 3.01e-01 9.34e-01 1.12e+00 ph/cm2/s
90%_error_low -1.45e-01 -1.09e-01 -9.29e-02 -1.86e-01 -2.99e-01 -3.60e-01 ph/cm2/s
90%_error_hi 1.67e-01 1.04e-01 9.00e-02 3.17e-01 3.00e-01 3.71e-01 ph/cm2/s
Fluence CPL 2.51e-07 4.59e-07 5.71e-07 8.45e-07 1.62e-06 2.12e-06 erg/cm2
90%_error_low -6.34e-08 -6.99e-08 -1.07e-07 -6.66e-07 -2.91e-07 -7.34e-07 erg/cm2
90%_error_hi 6.12e-08 8.25e-08 1.08e-07 1.21e-06 2.54e-07 6.33e-07 erg/cm2
Peak flux CPL 2.81e-01 3.03e-01 2.35e-01 3.02e-01 9.36e-01 1.14e+00 ph/cm2/s
90%_error_low -1.61e-01 -1.07e-01 -9.11e-02 -9.81e-02 -3.02e-01 -4.70e-01 ph/cm2/s
90%_error_hi 1.65e-01 1.30e-01 5.16e-02 3.12e-01 3.00e-01 3.32e-01 ph/cm2/s
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