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.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Mon Jan 20 07:21:12 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger291292
======================================================================
Trigger: 00291292 Segment: 000
BAT Trigger Time: 211707238.912 [s; MET]
Trigger Stop: 211707239.936 [s; MET]
UTC: 2007-09-17T07:33:56.682320 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 293.925010039201 Dec: 2.41308727492074 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 24.76
Image Trigger?: NO
Rate S/N Ratio: 167.16758058906 [ if not an image trigger ]
Image S/N Ratio: 24.76
Analysis Position: [ source = BAT ]
RA: 293.925010039201 Dec: 2.41308727492074 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 293.920429597368 Dec: 2.42436755961347 [deg; J2000]
{ 19h 35m 40.9s , +02d 25' 27.7" }
+/- 0.608439337971967 [arcmin] (estimated 90% radius based on SNR)
+/- 0.222478275194975 [arcmin] (formal 1-sigma fit error)
SNR: 61.8556537423431
Angular difference between the analysis and refined position is 0.730395 arcmin
Partial Coding Fraction: 0.7734375 [ including projection effects ]
Duration
T90: 8.71999999880791 +/- 1.72291033212711
Measured from: 0.212000012397766
to: 8.93200001120567 [s; relative to TRIGTIME]
T50: 2.47200000286102 +/- 0.162086385406289
Measured from: 0.796000003814697
to: 3.26800000667572 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.212000012397766
to: 1.21200001239777 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.104000002145767
to: 15.1279999911785 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.917523 1.260095 0.945276 0.232299
0.026622 0.026769 0.023308 0.018048 [error]
Peak 0.236562 0.387197 0.340742 0.105800
0.009086 0.010465 0.010214 0.007382 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 15.232 -0.104 15.128
T90 8.720 0.212 8.932
T50 2.472 0.796 3.268
Peak 1.000 0.212 1.212
====== 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 -1.496 -0.052 0.052 - - - 1.46e-02 -3.89e-04 3.89e-04 42.590 57
CPL -1.408 -0.118 0.200 364.466 -364.466 -364.466 1.61e-02 -1.74e-03 3.67e-03 41.980 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 -1.212 -0.058 0.058 - - - 7.29e-02 -2.29e-03 2.29e-03 36.350 57
CPL -1.060 -0.175 0.226 349.093 -349.093 -349.093 8.54e-02 -1.42e-02 2.19e-02 34.910 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 2.84e-07 5.22e-07 7.40e-07 2.21e-06 2.12e-06 3.76e-06 erg/cm2
90%_error_low -1.53e-08 -1.62e-08 -2.46e-08 -1.66e-07 -5.95e-08 -1.79e-07 erg/cm2
90%_error_hi 1.56e-08 1.61e-08 2.45e-08 1.75e-07 5.97e-08 1.86e-07 erg/cm2
Peak flux PL 5.81e-04 6.90e-03 1.10e-01 9.60e+00 4.81e-01 9.64e+00 ph/cm2/s
90%_error_low N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_hi N/A N/A N/A N/A N/A N/A ph/cm2/s
Fluence CPL 2.73e-07 3.66e-07 3.77e-07 8.52e-07 1.24e-06 1.55e-06 erg/cm2
90%_error_low -2.50e-08 -2.37e-08 -2.43e-08 -5.72e-08 -1.18e-07 1.28e-07 erg/cm2
90%_error_hi 8.54e-09 7.70e-09 2.14e-08 4.98e-08 1.20e-07 3.95e-07 erg/cm2
Peak flux CPL 2.19e+00 2.74e+00 2.39e+00 2.95e+00 8.50e+00 1.03e+01 ph/cm2/s
90%_error_low -1.86e-01 -1.09e-01 -1.02e-01 -5.93e-01 -2.98e-01 -6.82e-01 ph/cm2/s
90%_error_hi 9.54e-02 1.10e-01 1.03e-01 5.98e-01 2.98e-01 7.22e-01 ph/cm2/s
======================================================================
Special notes of this burst