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 19 13:05:58 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger374598
======================================================================
Trigger: 00374598 Segment: 000
BAT Trigger Time: 278865283.584 [s; MET]
Trigger Stop: 278865284.608 [s; MET]
UTC: 2009-11-02T14:34:38.358760 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 72.6742345146145 Dec: -72.5096722528519 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 13.01
Image Trigger?: NO
Rate S/N Ratio: 29.8496231131986 [ if not an image trigger ]
Image S/N Ratio: 13.01
Analysis Position: [ source = BAT ]
RA: 72.6742345146145 Dec: -72.5096722528519 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 72.6217139100931 Dec: -72.5272957296157 [deg; J2000]
{ 04h 50m 29.2s , -72d 31' 38.3" }
+/- 1.188577421284 [arcmin] (estimated 90% radius based on SNR)
+/- 0.444833580463779 [arcmin] (formal 1-sigma fit error)
SNR: 23.7649153381865
Angular difference between the analysis and refined position is 1.419229 arcmin
Partial Coding Fraction: 0.8046875 [ including projection effects ]
Duration
T90: 6.6479999423027 +/- 0.466699022673212
Measured from: -0.412000000476837
to: 6.23599994182587 [s; relative to TRIGTIME]
T50: 3.37999993562698 +/- 0.856861668927801
Measured from: 0.544000029563904
to: 3.92399996519089 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.255999982357025
to: 0.744000017642975 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.779999971389771
to: 6.63200002908707 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.146619 0.270290 0.238510 0.104995
0.015270 0.017028 0.016113 0.014644 [error]
Peak 0.040105 0.065762 0.062156 0.023138
0.005827 0.006666 0.006542 0.005973 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 7.412 -0.780 6.632
T90 6.648 -0.412 6.236
T50 3.380 0.544 3.924
Peak 1.000 -0.256 0.744
====== 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 -1.079 -0.120 0.122 - - - 6.72e-03 -4.55e-04 4.55e-04 40.550 57
CPL -0.926 -0.213 0.507 375.349 -375.349 -375.349 7.96e-03 -1.62e-03 5.75e-03 40.240 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 -1.058 -0.183 0.187 - - - 1.24e-02 -1.32e-03 1.32e-03 70.540 57
CPL -0.721 -0.429 0.803 197.373 -197.373 -197.373 1.81e-02 -7.22e-03 2.57e-02 69.850 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 4.30e-08 1.02e-07 1.94e-07 8.90e-07 5.24e-07 1.23e-06 erg/cm2
90%_error_low -5.62e-09 -8.10e-09 -1.55e-08 -1.52e-07 -3.99e-08 -1.63e-07 erg/cm2
90%_error_hi 5.85e-09 8.03e-09 1.54e-08 1.74e-07 4.02e-08 1.82e-07 erg/cm2
Peak flux PL 3.33e-01 4.37e-01 4.20e-01 7.17e-01 1.43e+00 1.91e+00 ph/cm2/s
90%_error_low -6.58e-02 -5.45e-02 -5.26e-02 -1.74e-01 -1.53e-01 -2.29e-01 ph/cm2/s
90%_error_hi 6.96e-02 5.37e-02 5.21e-02 2.09e-01 1.53e-01 2.40e-01 ph/cm2/s
Fluence CPL 4.17e-08 1.04e-07 1.96e-07 7.02e-07 5.18e-07 1.04e-06 erg/cm2
90%_error_low -6.41e-09 -8.67e-09 -1.72e-08 -3.47e-07 -4.47e-08 -3.46e-07 erg/cm2
90%_error_hi 5.91e-09 9.43e-09 1.76e-08 2.47e-07 4.37e-08 3.76e-07 erg/cm2
Peak flux CPL 3.13e-01 4.51e-01 4.33e-01 4.77e-01 1.41e+00 1.67e+00 ph/cm2/s
90%_error_low -7.77e-02 -6.14e-02 -5.88e-02 -2.61e-01 -1.59e-01 -3.10e-01 ph/cm2/s
90%_error_hi 8.06e-02 6.38e-02 6.07e-02 3.00e-01 1.58e-01 3.60e-01 ph/cm2/s
======================================================================