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: Fri Jul 29 23:03:09 EDT 2022
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1056426
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Trigger: 01056426 Segment: 000
BAT Trigger Time: 645673444.224 [s; MET]
Trigger Stop: 645673444.736 [s; MET]
UTC: 2021-06-18T01:43:37.008340 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 235.820334978217 Dec: 46.0433632334042 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.01
Image Trigger?: NO
Rate S/N Ratio: 12.369316876853 [ if not an image trigger ]
Image S/N Ratio: 7.01
Analysis Position: [ source = BAT ]
RA: 235.820334978217 Dec: 46.0433632334042 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 235.76357055125 Dec: 46.0686421956418 [deg; J2000]
{ 15h 43m 03.3s , +46d 04' 07.1" }
+/- 2.01107368901802 [arcmin] (estimated 90% radius based on SNR)
+/- 0.936196155566632 [arcmin] (formal 1-sigma fit error)
SNR: 11.2111414279785
Angular difference between the analysis and refined position is 2.808328 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 2.13199996948242 +/- 0.438488315161259
Measured from: -1.3639999628067
to: 0.76800000667572 [s; relative to TRIGTIME]
T50: 1.25599992275238 +/- 0.515503641776127
Measured from: -0.916000008583069
to: 0.339999914169312 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.495999932289124
to: 0.504000067710876 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.41999995708466
to: 0.927999973297119 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.059160 0.100822 0.072310 0.034526
0.011647 0.012911 0.013016 0.014175 [error]
Peak 0.035203 0.055008 0.045402 0.014324
0.007656 0.008703 0.008684 0.009359 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 2.348 -1.420 0.928
T90 2.132 -1.364 0.768
T50 1.256 -0.916 0.340
Peak 1.000 -0.496 0.504
====== 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 -1.216 -0.277 0.278 - - - 7.27e-03 -1.11e-03 1.10e-03 58.670 57
CPL -1.193 -2.586 0.890 9980.860 -9980.860 -9980.860 7.49e-03 -1.30e-03 1.37e-02 58.750 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 -1.136 -0.327 0.334 - - - 9.66e-03 -1.72e-03 1.71e-03 89.460 57
CPL -1.140 -0.321 0.344 9999.360 -9999.360 -9999.360 9.68e-03 -1.67e-03 1.55e-02 89.470 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 1.67e-08 3.66e-08 6.30e-08 2.51e-07 1.72e-07 3.67e-07 erg/cm2
90%_error_low -4.27e-09 -5.73e-09 -1.28e-08 -9.60e-08 -3.14e-08 -1.07e-07 erg/cm2
90%_error_hi 4.53e-09 5.65e-09 1.27e-08 1.34e-07 3.24e-08 1.41e-07 erg/cm2
Peak flux PL 2.81e-01 3.51e-01 3.20e-01 5.06e-01 1.13e+00 1.46e+00 ph/cm2/s
90%_error_low -8.83e-02 -6.92e-02 -7.22e-02 -2.07e-01 -1.96e-01 -2.91e-01 ph/cm2/s
90%_error_hi 9.56e-02 6.73e-02 7.09e-02 2.94e-01 1.96e-01 3.20e-01 ph/cm2/s
Fluence CPL 1.67e-08 3.62e-08 6.27e-08 2.66e-07 1.76e-07 3.70e-07 erg/cm2
90%_error_low N/A -5.76e-09 N/A -2.11e-07 -4.00e-08 -2.02e-07 erg/cm2
90%_error_hi N/A 6.70e-09 N/A 4.96e-08 1.76e-08 6.04e-08 erg/cm2
Peak flux CPL 2.87e-01 3.51e-01 3.18e-01 5.10e-01 1.13e+00 1.46e+00 ph/cm2/s
90%_error_low -9.66e-02 -6.91e-02 -7.08e-02 N/A -2.26e-01 -4.02e-01 ph/cm2/s
90%_error_hi 9.05e-02 6.79e-02 7.37e-02 N/A 2.09e-01 2.90e-01 ph/cm2/s
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