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: Sun Jan 19 15:16:43 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger357498
======================================================================
Trigger: 00357498 Segment: 000
BAT Trigger Time: 269371544.064 [s; MET]
Trigger Stop: 269371544.32 [s; MET]
UTC: 2009-07-15T17:25:39.150560 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 152.121935465376 Dec: 9.99748569935098 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.85
Image Trigger?: NO
Rate S/N Ratio: 57.835974963685 [ if not an image trigger ]
Image S/N Ratio: 9.85
Analysis Position: [ source = BAT ]
RA: 152.121935465376 Dec: 9.99748569935098 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 152.11515298902 Dec: 10.0054080605702 [deg; J2000]
{ 10h 08m 27.6s , +10d 00' 19.5" }
+/- 2.63985917847115 [arcmin] (estimated 90% radius based on SNR)
+/- 1.4183581684834 [arcmin] (formal 1-sigma fit error)
SNR: 7.60081480362925
Angular difference between the analysis and refined position is 0.621741 arcmin
Partial Coding Fraction: 0.2207031 [ including projection effects ]
Duration
T90: 64 +/- 22.6274169979695
Measured from: -15.0640000104904
to: 48.9359999895096 [s; relative to TRIGTIME]
T50: 48 +/- 16
Measured from: -15.0640000104904
to: 32.9359999895096 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -7.56400001049042
to: -6.56400001049042 [s; relative to TRIGTIME]
Total Fluence
Measured from: -15.0640000104904
to: 48.9359999895096 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.210651 0.442707 0.397521 0.167566
0.094032 0.098151 0.087631 0.078305 [error]
Peak -0.017494 0.008448 0.016077 0.001065
0.011992 0.011552 0.010758 0.008812 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 64.000 -15.064 48.936
T90 64.000 -15.064 48.936
T50 48.000 -15.064 32.936
Peak 1.000 -7.564 -6.564
====== 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 -1.061 -0.421 0.476 - - - 1.41e-03 -3.48e-04 3.31e-04 57.780 57
CPL -1.068 -0.411 0.547 9999.300 -9999.300 -9999.300 1.42e-03 -3.18e-04 2.24e-03 57.790 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 -0.347 0.347 0.347 - - - 1.65e-03 -1.65e-03 2.38e-03 59.610 57
CPL 8.053 -16.494 -8.053 81.405 -28.664 117.997 1.32e+00 -1.32e+00 3.63e+02 57.860 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 7.64e-08 1.84e-07 3.53e-07 1.65e-06 9.54e-07 2.27e-06 erg/cm2
90%_error_low -3.69e-08 -5.95e-08 -8.43e-08 -7.76e-07 -2.18e-07 -8.25e-07 erg/cm2
90%_error_hi 4.45e-08 5.61e-08 8.22e-08 1.23e-06 2.19e-07 1.21e-06 erg/cm2
Peak flux PL 2.40e-02 4.43e-02 7.20e-02 2.52e-01 2.03e-01 4.01e-01 ph/cm2/s
90%_error_low -2.40e-02 -4.43e-02 -7.20e-02 -2.52e-01 -2.03e-01 -4.01e-01 ph/cm2/s
90%_error_hi 1.08e-01 9.95e-02 7.41e-02 1.06e+00 2.62e-01 9.66e-01 ph/cm2/s
Fluence CPL 7.64e-08 1.83e-07 3.43e-07 1.69e-06 9.57e-07 2.26e-06 erg/cm2
90%_error_low N/A -7.40e-08 -9.78e-08 -1.21e-06 -2.74e-07 -1.16e-06 erg/cm2
90%_error_hi N/A 6.02e-08 1.21e-07 1.23e-06 2.73e-07 2.16e-06 erg/cm2
Peak flux CPL 3.40e-04 2.57e-02 1.56e-01 1.54e-02 1.90e-01 1.89e-01 ph/cm2/s
90%_error_low -3.40e-04 -2.57e-02 -1.24e-01 N/A -1.90e-01 -1.89e-01 ph/cm2/s
90%_error_hi 7.55e-02 1.23e-01 1.12e-01 N/A 2.17e-01 4.07e-01 ph/cm2/s
======================================================================
Special notes of this burst