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 13 17:11:57 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger509543
======================================================================
Trigger: 00509543 Segment: 000
BAT Trigger Time: 345374594.752 [s; MET]
Trigger Stop: 345374602.944 [s; MET]
UTC: 2011-12-12T09:23:07.084300 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 310.404448660982 Dec: -68.6171052622876 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.09
Image Trigger?: NO
Rate S/N Ratio: 8.48528137423857 [ if not an image trigger ]
Image S/N Ratio: 8.09
Analysis Position: [ source = BAT ]
RA: 310.404448660982 Dec: -68.6171052622876 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 310.441694517769 Dec: -68.5848822181666 [deg; J2000]
{ 20h 41m 46.0s , -68d 35' 05.6" }
+/- 1.75420619468349 [arcmin] (estimated 90% radius based on SNR)
+/- 0.797385353897873 [arcmin] (formal 1-sigma fit error)
SNR: 13.6279882662972
Angular difference between the analysis and refined position is 2.098285 arcmin
Partial Coding Fraction: 0.359375 [ including projection effects ]
Duration
T90: 56.3040000200272 +/- 9.35030263976235
Measured from: -1.76799994707108
to: 54.5360000729561 [s; relative to TRIGTIME]
T50: 25.37600004673 +/- 7.66085948001888
Measured from: 6.56800001859665
to: 31.9440000653267 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 4.76399999856949
to: 5.76399999856949 [s; relative to TRIGTIME]
Total Fluence
Measured from: -5.76799994707108
to: 62.6480000019073 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.520401 0.911580 0.605690 0.109234
0.080800 0.081669 0.070896 0.060597 [error]
Peak 0.030856 0.039079 0.026402 0.020402
0.010404 0.010291 0.008912 0.007820 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 68.416 -5.768 62.648
T90 56.304 -1.768 54.536
T50 25.376 6.568 31.944
Peak 1.000 4.764 5.764
====== 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 -1.628 -0.187 0.183 - - - 2.17e-03 -2.46e-04 2.44e-04 55.050 57
CPL -0.877 -0.797 0.996 71.096 -18.849 -71.096 5.39e-03 -3.27e-03 1.25e-02 52.510 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 -1.689 -0.590 0.559 - - - 6.22e-03 -2.16e-03 2.07e-03 65.850 57
CPL -1.476 -0.923 2.436 111.316 -111.306 -111.316 8.16e-03 -8.16e-03 2.24e-01 65.870 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 2.14e-07 3.64e-07 4.71e-07 1.23e-06 1.39e-06 2.28e-06 erg/cm2
90%_error_low -3.67e-08 -4.03e-08 -6.94e-08 -3.40e-07 -1.66e-07 -4.08e-07 erg/cm2
90%_error_hi 3.83e-08 4.02e-08 6.92e-08 4.16e-07 1.68e-07 4.66e-07 erg/cm2
Peak flux PL 3.07e-01 2.76e-01 1.71e-01 1.62e-01 8.23e-01 9.17e-01 ph/cm2/s
90%_error_low -1.44e-01 -8.92e-02 -7.41e-02 -1.05e-01 -2.59e-01 -2.86e-01 ph/cm2/s
90%_error_hi 1.61e-01 8.77e-02 7.38e-02 1.84e-01 2.60e-01 2.88e-01 ph/cm2/s
Fluence CPL 1.92e-07 3.95e-07 4.84e-07 4.34e-07 1.31e-06 1.51e-06 erg/cm2
90%_error_low -4.36e-08 -5.22e-08 -7.78e-08 -2.80e-07 -1.88e-07 -3.39e-07 erg/cm2
90%_error_hi 4.45e-08 5.49e-08 7.75e-08 8.92e-07 1.89e-07 8.67e-07 erg/cm2
Peak flux CPL 3.05e-01 2.78e-01 1.72e-01 1.51e-01 8.22e-01 9.06e-01 ph/cm2/s
90%_error_low -1.60e-01 -8.92e-02 N/A -1.51e-01 -2.64e-01 -3.32e-01 ph/cm2/s
90%_error_hi 1.64e-01 1.14e-01 N/A 1.05e-01 2.61e-01 2.94e-01 ph/cm2/s
======================================================================
Special notes of this burst