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 22:19:45 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger453747
======================================================================
Trigger: 00453747 Segment: 000
BAT Trigger Time: 327616135.168 [s; MET]
Trigger Stop: 327616137.216 [s; MET]
UTC: 2011-05-20T20:28:48.193920 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 134.375117604516 Dec: 56.401895388955 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.87
Image Trigger?: NO
Rate S/N Ratio: 15.9059737205869 [ if not an image trigger ]
Image S/N Ratio: 7.87
Analysis Position: [ source = BAT ]
RA: 134.375117604516 Dec: 56.401895388955 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 134.359584878478 Dec: 56.4210944883302 [deg; J2000]
{ 08h 57m 26.3s , +56d 25' 15.9" }
+/- 1.19479743924927 [arcmin] (estimated 90% radius based on SNR)
+/- 0.359074980866218 [arcmin] (formal 1-sigma fit error)
SNR: 23.5883723976126
Angular difference between the analysis and refined position is 1.262065 arcmin
Partial Coding Fraction: 0.6953125 [ including projection effects ]
Duration
T90: 20.8640000224113 +/- 5.36723098024146
Measured from: -0.191999971866608
to: 20.6720000505447 [s; relative to TRIGTIME]
T50: 8.95999997854233 +/- 1.51721854264313
Measured from: 2.75200003385544
to: 11.7120000123978 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 4.14000004529953
to: 5.14000004529953 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.15200001001358
to: 26.4959999918938 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.332642 0.625974 0.545709 0.165336
0.036730 0.038611 0.034896 0.030042 [error]
Peak 0.026936 0.043987 0.049045 0.013078
0.006987 0.007632 0.007071 0.006036 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 27.648 -1.152 26.496
T90 20.864 -0.192 20.672
T50 8.960 2.752 11.712
Peak 1.000 4.140 5.140
====== 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 -1.209 -0.117 0.118 - - - 4.15e-03 -2.77e-04 2.77e-04 51.070 57
CPL -0.883 -0.378 0.513 185.639 -82.172 -185.639 5.91e-03 -1.92e-03 4.23e-03 49.630 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 -1.073 -0.278 0.292 - - - 9.37e-03 -1.49e-03 1.49e-03 42.670 57
CPL -1.079 -0.269 0.351 9999.360 -9999.360 -9999.360 9.42e-03 -1.48e-03 1.67e-02 42.680 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 1.12e-07 2.45e-07 4.24e-07 1.70e-06 1.16e-06 2.48e-06 erg/cm2
90%_error_low -1.43e-08 -1.92e-08 -3.32e-08 -2.82e-07 -8.42e-08 -3.04e-07 erg/cm2
90%_error_hi 1.49e-08 1.90e-08 3.31e-08 3.20e-07 8.47e-08 3.36e-07 erg/cm2
Peak flux PL 2.57e-01 3.33e-01 3.17e-01 5.33e-01 1.08e+00 1.44e+00 ph/cm2/s
90%_error_low -7.98e-02 -6.70e-02 -5.57e-02 -1.79e-01 -1.77e-01 -2.41e-01 ph/cm2/s
90%_error_hi 8.84e-02 6.50e-02 5.48e-02 2.32e-01 1.78e-01 2.50e-01 ph/cm2/s
Fluence CPL 1.04e-07 2.52e-07 4.37e-07 1.08e-06 1.14e-06 1.87e-06 erg/cm2
90%_error_low -1.76e-08 -2.16e-08 -3.79e-08 -4.86e-07 -9.22e-08 -4.86e-07 erg/cm2
90%_error_hi 1.81e-08 2.21e-08 3.86e-08 7.19e-07 9.13e-08 7.23e-07 erg/cm2
Peak flux CPL 2.63e-01 3.33e-01 3.16e-01 5.30e-01 1.09e+00 1.46e+00 ph/cm2/s
90%_error_low -9.32e-02 -3.47e-02 -5.48e-02 N/A -1.92e-01 -2.53e-01 ph/cm2/s
90%_error_hi 7.52e-02 7.04e-02 6.43e-02 N/A 1.84e-01 2.17e-01 ph/cm2/s
======================================================================
Special notes of this burst