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 v2.46
Process Start Time: Wed Apr 12 15:17:48 EDT 2017
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger737125
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Trigger: 00737125 Segment: 000
BAT Trigger Time: 508111064.064 [s; MET]
Trigger Stop: 508111068.16 [s; MET]
UTC: 2017-02-06T21:57:25.488720 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 271.785667508088 Dec: 11.2228219729964 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.48
Image Trigger?: NO
Rate S/N Ratio: 9.32737905308882 [ if not an image trigger ]
Image S/N Ratio: 7.48
Analysis Position: [ source = BAT ]
RA: 271.785667508088 Dec: 11.2228219729964 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 271.782770487604 Dec: 11.1751130970994 [deg; J2000]
{ 18h 07m 07.9s , +11d 10' 30.4" }
+/- 2.19988005435562 [arcmin] (estimated 90% radius based on SNR)
+/- 1.00249872004088 [arcmin] (formal 1-sigma fit error)
SNR: 9.86227136990764
Angular difference between the analysis and refined position is 2.867606 arcmin
Partial Coding Fraction: 0.7890625 [ including projection effects ]
Duration
T90: 13.3600000143051 +/- 2.6770251832304
Measured from: -0.00800001621246338
to: 13.3519999980927 [s; relative to TRIGTIME]
T50: 7.44000005722046 +/- 2.97294468953417
Measured from: 1.92799997329712
to: 9.36800003051758 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.57199996709824
to: 3.57199996709824 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.328000009059906
to: 15.6079999804497 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.149471 0.198568 0.121013 0.023497
0.029870 0.027781 0.023359 0.019568 [error]
Peak 0.017849 0.024634 0.019804 0.002206
0.007566 0.007171 0.006073 0.004820 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 15.936 -0.328 15.608
T90 13.360 -0.008 13.352
T50 7.440 1.928 9.368
Peak 1.000 2.572 3.572
====== 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 -1.424 -0.274 0.276 - - - 2.07e-03 -3.31e-04 3.30e-04 81.150 57
CPL -0.307 -1.235 2.074 72.897 -21.402 -72.897 7.78e-03 -7.78e-03 7.76e-02 79.300 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 -1.175 -0.624 0.692 - - - 4.12e-03 -1.36e-03 1.33e-03 59.600 57
CPL -1.184 -0.614 0.712 9999.340 -9999.340 -9999.340 4.14e-03 -4.14e-03 1.48e-02 59.600 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 3.92e-08 7.54e-08 1.12e-07 3.61e-07 3.17e-07 5.88e-07 erg/cm2
90%_error_low -1.05e-08 -1.30e-08 -2.26e-08 -1.34e-07 -5.51e-08 -1.55e-07 erg/cm2
90%_error_hi 1.13e-08 1.28e-08 2.25e-08 1.82e-07 5.60e-08 1.93e-07 erg/cm2
Peak flux PL 1.24e-01 1.52e-01 1.34e-01 2.05e-01 4.82e-01 6.15e-01 ph/cm2/s
90%_error_low -7.61e-02 -6.59e-02 -4.99e-02 -1.28e-01 -1.65e-01 -2.02e-01 ph/cm2/s
90%_error_hi 9.71e-02 6.11e-02 4.75e-02 2.30e-01 1.67e-01 2.12e-01 ph/cm2/s
Fluence CPL 3.28e-08 8.40e-08 1.16e-07 8.55e-08 2.86e-07 3.18e-07 erg/cm2
90%_error_low -1.35e-08 -1.69e-08 -2.73e-08 -6.92e-08 -6.50e-08 -9.46e-08 erg/cm2
90%_error_hi 1.38e-08 1.81e-08 2.61e-08 4.58e-07 6.84e-08 3.39e-07 erg/cm2
Peak flux CPL 1.24e-01 1.52e-01 1.34e-01 2.04e-01 4.82e-01 6.47e-01 ph/cm2/s
90%_error_low N/A N/A N/A N/A -1.65e-01 -2.80e-01 ph/cm2/s
90%_error_hi N/A N/A N/A N/A 1.67e-01 2.07e-01 ph/cm2/s
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