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 22:32:32 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger452685
======================================================================
Trigger: 00452685 Segment: 000
BAT Trigger Time: 326136952.448 [s; MET]
Trigger Stop: 326136953.472 [s; MET]
UTC: 2011-05-03T17:35:45.530200 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 132.79984224966 Dec: 52.2156973681742 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 20.4
Image Trigger?: NO
Rate S/N Ratio: 134.029847422132 [ if not an image trigger ]
Image S/N Ratio: 20.4
Analysis Position: [ source = BAT ]
RA: 132.79984224966 Dec: 52.2156973681742 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 132.799490954221 Dec: 52.211078499856 [deg; J2000]
{ 08h 51m 11.9s , +52d 12' 39.9" }
+/- 0.979525171125444 [arcmin] (estimated 90% radius based on SNR)
+/- 0.348119802711741 [arcmin] (formal 1-sigma fit error)
SNR: 31.329483576278
Angular difference between the analysis and refined position is 0.277433 arcmin
Partial Coding Fraction: 0.1191406 [ including projection effects ]
Duration
T90: 58.6999999284744 +/- 47.0071018572133
Measured from: -1.64800000190735
to: 57.0519999265671 [s; relative to TRIGTIME]
T50: 3.91199994087219 +/- 0.540592264284623
Measured from: -0.00400000810623169
to: 3.90799993276596 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.120000004768372
to: 0.879999995231628 [s; relative to TRIGTIME]
Total Fluence
Measured from: -6.57600003480911
to: 203.587999999523 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.994171 5.089695 5.349838 1.786912
0.162915 0.183378 0.185515 0.195359 [error]
Peak 0.499534 1.103982 1.507427 0.511213
0.034995 0.047989 0.054829 0.042377 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 210.164 -6.576 203.588
T90 58.700 -1.648 57.052
T50 3.912 -0.004 3.908
Peak 1.000 -0.120 0.880
====== 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 -1.262 -0.070 0.070 - - - 5.41e-03 -2.08e-04 2.08e-04 68.770 57
CPL -1.022 -0.259 0.295 229.438 -95.808 -229.438 6.94e-03 -1.39e-03 2.40e-03 66.580 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: CPL)
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 -1.007 -0.069 0.069 - - - 2.62e-01 -1.15e-02 1.15e-02 77.430 57
CPL -0.163 -0.319 0.345 130.196 -21.415 42.560 6.08e-01 -1.62e-01 2.37e-01 54.750 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 1.16e-06 2.47e-06 4.12e-06 1.56e-05 1.13e-05 2.34e-05 erg/cm2
90%_error_low -8.91e-08 -1.13e-07 -1.87e-07 -1.58e-06 -4.71e-07 -1.68e-06 erg/cm2
90%_error_hi 9.16e-08 1.12e-07 1.87e-07 1.70e-06 4.72e-07 1.78e-06 erg/cm2
Peak flux PL 6.74e+00 9.11e+00 9.07e+00 1.63e+01 3.02e+01 4.12e+01 ph/cm2/s
90%_error_low -5.63e-01 -4.87e-01 -4.19e-01 -1.49e+00 -1.34e+00 -1.91e+00 ph/cm2/s
90%_error_hi 5.80e-01 4.85e-01 4.17e-01 1.57e+00 1.35e+00 1.93e+00 ph/cm2/s
Fluence CPL 1.09e-06 2.51e-06 4.22e-06 1.14e-05 1.12e-05 1.92e-05 erg/cm2
90%_error_low -1.15e-07 -1.22e-07 -2.18e-07 -3.36e-06 -5.07e-07 -3.35e-06 erg/cm2
90%_error_hi 1.17e-07 1.23e-07 2.20e-07 4.64e-06 5.05e-07 3.94e-06 erg/cm2
Peak flux CPL 5.34e+00 9.50e+00 1.02e+01 8.49e+00 2.96e+01 3.35e+01 ph/cm2/s
90%_error_low -7.08e-01 -5.45e-01 -5.83e-01 -1.69e+00 -1.36e+00 -2.17e+00 ph/cm2/s
90%_error_hi 7.35e-01 5.47e-01 5.90e-01 2.19e+00 1.36e+00 2.49e+00 ph/cm2/s
======================================================================
Special notes of this burst