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 15:42:56 EST 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1194500
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Trigger: 01194500 Segment: 000
BAT Trigger Time: 720755292.224 [s; MET]
Trigger Stop: 720755293.248 [s; MET]
UTC: 2023-11-04T01:47:39.917340 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 23.7891451771579 Dec: 83.790808701288 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 23.7
Image Trigger?: NO
Rate S/N Ratio: 255.998046867549 [ if not an image trigger ]
Image S/N Ratio: 23.7
Analysis Position: [ source = BAT ]
RA: 23.7891451771579 Dec: 83.790808701288 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 23.8232899443077 Dec: 83.7942183482602 [deg; J2000]
{ 01h 35m 17.6s , +83d 47' 39.2" }
+/- 0.512563844230318 [arcmin] (estimated 90% radius based on SNR)
+/- 0.0916436390894789 [arcmin] (formal 1-sigma fit error)
SNR: 79.0249336168939
Angular difference between the analysis and refined position is 0.301538 arcmin
Partial Coding Fraction: 0.890625 [ including projection effects ]
Duration
T90: 46.7119998931885 +/- 1.56841836679801
Measured from: -5.75599992275238
to: 40.9559999704361 [s; relative to TRIGTIME]
T50: 22.0039999485016 +/- 0.227437965134723
Measured from: -0.875999927520752
to: 21.1280000209808 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.240000009536743
to: 1.24000000953674 [s; relative to TRIGTIME]
Total Fluence
Measured from: -13.3919999599457
to: 55.8320000171661 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 4.516816 6.865695 6.077785 1.898170
0.065540 0.072108 0.066821 0.051915 [error]
Peak 0.529279 1.032874 1.215987 0.481761
0.015480 0.020577 0.023136 0.018449 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 69.224 -13.392 55.832
T90 46.712 -5.756 40.956
T50 22.004 -0.876 21.128
Peak 1.000 0.240 1.240
====== 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 -1.239 -0.031 0.031 - - - 1.88e-02 -3.09e-04 3.08e-04 47.260 57
CPL -1.189 -0.077 -0.015 999.817 -999.817 -999.817 1.97e-02 -1.12e-03 9.02e-04 48.220 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 -0.824 -0.043 0.043 - - - 2.18e-01 -5.19e-03 5.18e-03 52.030 57
CPL -0.747 -0.091 0.167 999.584 -999.584 -999.584 2.35e-01 -5.35e-03 3.91e-02 51.420 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 1.30e-06 2.80e-06 4.75e-06 1.85e-05 1.30e-05 2.73e-05 erg/cm2
90%_error_low -4.81e-08 -6.05e-08 -8.01e-08 -7.55e-07 -2.07e-07 -7.72e-07 erg/cm2
90%_error_hi 4.89e-08 6.04e-08 7.99e-08 7.78e-07 2.07e-07 7.90e-07 erg/cm2
Peak flux PL 4.71e+00 7.11e+00 8.03e+00 1.73e+01 2.50e+01 3.71e+01 ph/cm2/s
90%_error_low -2.45e-01 -2.22e-01 -1.95e-01 -9.38e-01 -5.88e-01 -1.01e+00 ph/cm2/s
90%_error_hi 2.50e-01 2.22e-01 1.94e-01 9.74e-01 5.88e-01 1.02e+00 ph/cm2/s
Fluence CPL 1.13e-06 1.51e-06 1.56e-06 3.65e-06 5.18e-06 7.83e-06 erg/cm2
90%_error_low -6.63e-08 -9.48e-08 -5.30e-08 -1.82e-07 -2.32e-07 -1.88e-07 erg/cm2
90%_error_hi 4.82e-08 4.14e-08 3.68e-08 1.60e-07 8.84e-08 4.29e-07 erg/cm2
Peak flux CPL 4.60e+00 7.14e+00 8.11e+00 1.68e+01 2.50e+01 3.58e+01 ph/cm2/s
90%_error_low -3.32e-01 -2.37e-01 -2.24e-01 -3.40e+00 -6.10e-01 -2.49e+00 ph/cm2/s
90%_error_hi 3.05e-01 2.14e-01 2.52e-01 9.34e-01 5.85e-01 1.80e+00 ph/cm2/s
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