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 13:40:57 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger371050
======================================================================
Trigger: 00371050 Segment: 000
BAT Trigger Time: 275911752.384 [s; MET]
Trigger Stop: 275911752.64 [s; MET]
UTC: 2009-09-29T10:09:07.257040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 117.704966660118 Dec: -0.632291942744759 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.72
Image Trigger?: NO
Rate S/N Ratio: 13.228756555323 [ if not an image trigger ]
Image S/N Ratio: 7.72
Analysis Position: [ source = BAT ]
RA: 117.704966660118 Dec: -0.632291942744759 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 117.713044181164 Dec: -0.643966824125406 [deg; J2000]
{ 07h 50m 51.1s , -00d 38' 38.3" }
+/- 1.44963718110644 [arcmin] (estimated 90% radius based on SNR)
+/- 0.537050552552147 [arcmin] (formal 1-sigma fit error)
SNR: 17.8956683877583
Angular difference between the analysis and refined position is 0.851791 arcmin
Partial Coding Fraction: 0.6328125 [ including projection effects ]
Duration
T90: 357.3599999547 +/- 7.21101519245917
Measured from: -2.17599999904633
to: 355.183999955654 [s; relative to TRIGTIME]
T50: 231.531999945641 +/- 5.56849786219573
Measured from: 19.2919999957085
to: 250.823999941349 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 30.6719999909401
to: 31.6719999909401 [s; relative to TRIGTIME]
Total Fluence
Measured from: -9.783999979496
to: 370.899999976158 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 3.426444 3.843175 2.349209 0.420361
0.116002 0.124157 0.119094 0.130521 [error]
Peak 0.062107 0.150384 0.148835 0.050049
0.007172 0.008486 0.008577 0.007837 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 380.684 -9.784 370.900
T90 357.360 -2.176 355.184
T50 231.532 19.292 250.824
Peak 1.000 30.672 31.672
====== 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 -1.811 -0.085 0.084 - - - 1.66e-03 -7.58e-05 7.52e-05 54.060 57
CPL -1.639 -0.239 0.343 98.106 -42.192 -98.106 2.04e-03 -4.42e-04 1.01e-03 53.220 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 -0.928 -0.107 0.109 - - - 2.82e-02 -1.76e-03 1.76e-03 51.370 57
CPL -0.609 -0.361 0.450 246.371 N/A N/A 3.94e-02 N/A N/A 49.600 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 1.08e-06 1.64e-06 1.87e-06 4.08e-06 5.82e-06 8.68e-06 erg/cm2
90%_error_low -7.65e-08 -6.82e-08 -1.21e-07 -5.40e-07 -2.70e-07 -6.40e-07 erg/cm2
90%_error_hi 7.85e-08 6.81e-08 1.21e-07 5.97e-07 2.72e-07 6.85e-07 erg/cm2
Peak flux PL 6.72e-01 9.52e-01 1.00e+00 1.94e+00 3.23e+00 4.57e+00 ph/cm2/s
90%_error_low -8.44e-02 -7.47e-02 -6.70e-02 -2.68e-01 -2.03e-01 -3.19e-01 ph/cm2/s
90%_error_hi 8.81e-02 7.39e-02 6.67e-02 2.96e-01 2.03e-01 3.27e-01 ph/cm2/s
Fluence CPL 1.05e-06 1.67e-06 1.88e-06 3.04e-06 5.70e-06 7.63e-06 erg/cm2
90%_error_low -9.37e-08 -8.09e-08 -1.24e-07 -1.22e-06 -3.39e-07 -1.29e-06 erg/cm2
90%_error_hi 9.49e-08 8.22e-08 1.24e-07 1.19e-06 3.35e-07 1.29e-06 erg/cm2
Peak flux CPL 6.22e-01 9.72e-01 1.04e+00 1.38e+00 3.20e+00 4.02e+00 ph/cm2/s
90%_error_low -1.04e-01 -8.04e-02 -8.26e-02 -4.67e-01 -2.08e-01 -5.08e-01 ph/cm2/s
90%_error_hi 1.08e-01 8.16e-02 8.38e-02 6.57e-01 2.08e-01 7.10e-01 ph/cm2/s
======================================================================
Special notes of this burst