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: Sun Jan 12 23:31:50 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger537921
======================================================================
Trigger: 00537921 Segment: 000
BAT Trigger Time: 374089668.928 [s; MET]
Trigger Stop: 374089669.952 [s; MET]
UTC: 2012-11-08T17:47:39.076820 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 83.1858158216827 Dec: 54.4907233392431 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.89
Image Trigger?: NO
Rate S/N Ratio: 12.9228479833201 [ if not an image trigger ]
Image S/N Ratio: 7.89
Analysis Position: [ source = BAT ]
RA: 83.1858158216827 Dec: 54.4907233392431 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 83.2321731033032 Dec: 54.5293066041938 [deg; J2000]
{ 05h 32m 55.7s , +54d 31' 45.5" }
+/- 2.37389297059574 [arcmin] (estimated 90% radius based on SNR)
+/- 1.21320647312007 [arcmin] (formal 1-sigma fit error)
SNR: 8.84596732348644
Angular difference between the analysis and refined position is 2.822545 arcmin
Partial Coding Fraction: 0.90625 [ including projection effects ]
Duration
T90: 89.5479999780655 +/- 47.5364645041382
Measured from: 0.944000005722046
to: 90.4919999837875 [s; relative to TRIGTIME]
T50: 26.4959999322891 +/- 9.24377933393568
Measured from: 16.7040000557899
to: 43.1999999880791 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 43.188000023365
to: 44.188000023365 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.223999977111816
to: 137.976000010967 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.946279 0.818797 0.273159 -0.052527
0.067824 0.070062 0.062530 0.059398 [error]
Peak 0.063645 0.088043 0.041196 -0.001944
0.006691 0.007078 0.006078 0.005101 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 138.200 -0.224 137.976
T90 89.548 0.944 90.492
T50 26.496 16.704 43.200
Peak 1.000 43.188 44.188
====== 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 -2.294 -0.204 0.191 - - - 7.23e-04 -1.08e-04 1.08e-04 72.400 57
CPL -1.012 -0.954 1.277 26.548 -23.373 6.771 4.87e-03 -4.87e-03 2.99e-02 66.600 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 -1.811 -0.171 0.165 - - - 1.14e-02 -1.37e-03 1.35e-03 68.580 57
CPL -0.360 -0.815 1.013 45.970 -7.050 12.693 8.14e-02 -8.14e-02 2.49e-01 57.990 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 2.70e-07 3.08e-07 2.51e-07 3.42e-07 9.54e-07 1.17e-06 erg/cm2
90%_error_low -3.25e-08 -3.28e-08 -4.96e-08 -1.13e-07 -1.17e-07 -1.87e-07 erg/cm2
90%_error_hi 3.28e-08 3.24e-08 5.26e-08 1.48e-07 1.21e-07 2.13e-07 erg/cm2
Peak flux PL 6.32e-01 5.30e-01 3.02e-01 2.55e-01 1.58e+00 1.72e+00 ph/cm2/s
90%_error_low -8.79e-02 -5.35e-02 -4.62e-02 -6.67e-02 -1.59e-01 -1.78e-01 ph/cm2/s
90%_error_hi 9.00e-02 5.35e-02 4.68e-02 7.97e-02 1.59e-01 1.79e-01 ph/cm2/s
Fluence CPL 2.61e-07 3.48e-07 1.90e-07 3.47e-08 8.28e-07 8.33e-07 erg/cm2
90%_error_low -3.53e-08 -4.38e-08 -7.47e-08 -2.97e-08 -1.17e-07 -1.22e-07 erg/cm2
90%_error_hi 3.51e-08 4.49e-08 7.45e-08 1.34e-07 1.38e-07 1.90e-07 erg/cm2
Peak flux CPL 5.64e-01 6.29e-01 2.88e-01 4.64e-02 1.52e+00 1.53e+00 ph/cm2/s
90%_error_low -9.94e-02 -7.62e-02 -6.30e-02 -3.12e-02 -1.60e-01 -1.64e-01 ph/cm2/s
90%_error_hi 1.00e-01 7.90e-02 5.85e-02 6.87e-02 1.61e-01 1.68e-01 ph/cm2/s
======================================================================