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 Oct 19 14:44:41 EDT 2024
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1253910
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Trigger: 01253910 Segment: 000
BAT Trigger Time: 747798433.344 [s; MET]
Trigger Stop: 747798433.856 [s; MET]
UTC: 2024-09-12T01:46:39.185300 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 124.63322615577 Dec: 33.9949552639727 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.78
Image Trigger?: NO
Rate S/N Ratio: 13 [ if not an image trigger ]
Image S/N Ratio: 7.78
Analysis Position: [ source = BAT ]
RA: 124.63322615577 Dec: 33.9949552639727 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 124.622721747922 Dec: 33.9949849621564 [deg; J2000]
{ 08h 18m 29.5s , +33d 59' 41.9" }
+/- 1.04079011498913 [arcmin] (estimated 90% radius based on SNR)
+/- 0.36010956312302 [arcmin] (formal 1-sigma fit error)
SNR: 28.7285606334815
Angular difference between the analysis and refined position is 0.522547 arcmin
Partial Coding Fraction: 0.8671875 [ including projection effects ]
Duration
T90: 114.931999921799 +/- 8.08011290348459
Measured from: 20.6000000238419
to: 135.531999945641 [s; relative to TRIGTIME]
T50: 25.2079999446869 +/- 0.475394495726533
Measured from: 62.1160000562668
to: 87.3240000009537 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 76.0520000457764
to: 77.0520000457764 [s; relative to TRIGTIME]
Total Fluence
Measured from: -3.64800000190735
to: 373.027999997139 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 17.062591 21.642468 15.397990 3.356233
0.128313 0.135199 0.115625 0.086841 [error]
Peak 0.510251 0.717492 0.528835 0.132137
0.012611 0.014688 0.013176 0.008178 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 376.676 -3.648 373.028
T90 114.932 20.600 135.532
T50 25.208 62.116 87.324
Peak 1.000 76.052 77.052
====== 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: CPL)
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 -1.625 -0.026 0.026 - - - 9.60e-03 -1.32e-04 1.32e-04 36.540 57
CPL -1.450 -0.106 0.108 193.985 -50.561 191.316 1.13e-02 -1.04e-03 1.17e-03 28.630 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 -1.497 -0.048 0.048 - - - 1.20e-01 -3.14e-03 3.14e-03 54.320 57
CPL -1.224 -0.193 0.202 154.422 -43.355 221.114 1.60e-01 -2.93e-02 3.78e-02 48.410 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 5.19e-06 8.84e-06 1.15e-05 3.01e-05 3.37e-05 5.56e-05 erg/cm2
90%_error_low -1.59e-07 -1.60e-07 -1.63e-07 -1.00e-06 -4.45e-07 -1.03e-06 erg/cm2
90%_error_hi 1.61e-07 1.60e-07 1.63e-07 1.03e-06 4.46e-07 1.05e-06 erg/cm2
Peak flux PL 4.91e+00 4.95e+00 3.51e+00 3.95e+00 1.49e+01 1.73e+01 ph/cm2/s
90%_error_low -2.50e-01 -1.51e-01 -1.11e-01 -2.62e-01 -4.24e-01 -4.54e-01 ph/cm2/s
90%_error_hi 2.55e-01 1.51e-01 1.11e-01 2.73e-01 4.24e-01 4.54e-01 ph/cm2/s
Fluence CPL 4.91e-06 8.86e-06 1.17e-05 2.51e-05 3.34e-05 5.05e-05 erg/cm2
90%_error_low -2.26e-07 -1.62e-07 -2.05e-07 -2.55e-06 -4.83e-07 -2.61e-06 erg/cm2
90%_error_hi 2.31e-07 1.62e-07 2.06e-07 2.92e-06 4.83e-07 2.97e-06 erg/cm2
Peak flux CPL 4.59e+00 5.02e+00 3.60e+00 3.00e+00 1.47e+01 1.62e+01 ph/cm2/s
90%_error_low -3.24e-01 -1.62e-01 -1.30e-01 -5.19e-01 -4.58e-01 -7.37e-01 ph/cm2/s
90%_error_hi 3.30e-01 1.63e-01 1.31e-01 6.51e-01 4.60e-01 8.28e-01 ph/cm2/s
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