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 16:04:42 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger353728
======================================================================
Trigger: 00353728 Segment: 000
BAT Trigger Time: 265487760.96 [s; MET]
Trigger Stop: 265487761.984 [s; MET]
UTC: 2009-05-31T18:35:56.171780 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 252.064493860549 Dec: -36.0245188355297 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.06
Image Trigger?: NO
Rate S/N Ratio: 48.4148737476408 [ if not an image trigger ]
Image S/N Ratio: 11.06
Analysis Position: [ source = BAT ]
RA: 252.064493860549 Dec: -36.0245188355297 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 252.050663288647 Dec: -36.0371248300275 [deg; J2000]
{ 16h 48m 12.2s , -36d 02' 13.6" }
+/- 1.63203383503178 [arcmin] (estimated 90% radius based on SNR)
+/- 0.668135944031281 [arcmin] (formal 1-sigma fit error)
SNR: 15.1084385497323
Angular difference between the analysis and refined position is 1.011157 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 54.9959999918938 +/- 6.13174035585667
Measured from: 0.439999997615814
to: 55.4359999895096 [s; relative to TRIGTIME]
T50: 39.6159999966621 +/- 13.3353342529601
Measured from: 1.60400000214577
to: 41.2199999988079 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.25
to: 1.25 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.252000004053116
to: 56.1319999992847 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.345998 0.326109 0.291201 0.099008
0.041058 0.038554 0.032767 0.027373 [error]
Peak 0.049357 0.071327 0.087462 0.033839
0.006112 0.006192 0.006156 0.005358 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 55.880 0.252 56.132
T90 54.996 0.440 55.436
T50 39.616 1.604 41.220
Peak 1.000 0.250 1.250
====== 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 -1.516 -0.215 0.214 - - - 1.16e-03 -1.32e-04 1.31e-04 57.410 57
CPL -1.528 -0.800 0.232 9999.360 N/A N/A 1.15e-03 N/A N/A 57.440 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 -0.948 -0.157 0.160 - - - 1.52e-02 -1.25e-03 1.24e-03 63.270 57
CPL -0.879 -0.230 0.346 973.617 -973.617 -973.617 1.62e-02 -2.20e-03 5.27e-03 63.650 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 8.40e-08 1.53e-07 2.14e-07 6.25e-07 6.13e-07 1.08e-06 erg/cm2
90%_error_low -1.64e-08 -1.78e-08 -3.31e-08 -1.90e-07 -7.70e-08 -2.17e-07 erg/cm2
90%_error_hi 1.73e-08 1.76e-08 3.27e-08 2.43e-07 7.80e-08 2.61e-07 erg/cm2
Peak flux PL 3.69e-01 5.16e-01 5.36e-01 1.02e+00 1.74e+00 2.44e+00 ph/cm2/s
90%_error_low -6.52e-02 -5.54e-02 -4.87e-02 -2.00e-01 -1.45e-01 -2.28e-01 ph/cm2/s
90%_error_hi 6.99e-02 5.45e-02 4.82e-02 2.32e-01 1.45e-01 2.39e-01 ph/cm2/s
Fluence CPL 8.40e-08 1.49e-07 2.10e-07 7.10e-07 6.19e-07 1.07e-06 erg/cm2
90%_error_low -1.65e-08 -1.41e-08 -2.98e-08 -3.69e-07 -8.28e-08 -2.81e-07 erg/cm2
90%_error_hi 1.73e-08 2.12e-08 3.60e-08 4.28e-08 7.23e-08 2.63e-07 erg/cm2
Peak flux CPL 3.68e-01 5.17e-01 5.34e-01 1.09e+00 1.76e+00 2.44e+00 ph/cm2/s
90%_error_low N/A -5.65e-02 -4.76e-02 N/A -1.58e-01 -3.58e-01 ph/cm2/s
90%_error_hi N/A 2.73e-02 5.02e-02 N/A 1.32e-01 2.14e-01 ph/cm2/s
======================================================================
Special notes of this burst