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 01:10:52 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger532871
======================================================================
Trigger: 00532871 Segment: 000
BAT Trigger Time: 368670272.704 [s; MET]
Trigger Stop: 368670273.728 [s; MET]
UTC: 2012-09-07T00:24:23.082500 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 74.741267312283 Dec: -9.31372697920963 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.33
Image Trigger?: NO
Rate S/N Ratio: 15.4919333848297 [ if not an image trigger ]
Image S/N Ratio: 11.33
Analysis Position: [ source = BAT ]
RA: 74.741267312283 Dec: -9.31372697920963 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 74.7510327743971 Dec: -9.31834471955395 [deg; J2000]
{ 04h 59m 00.2s , -09d 19' 06.0" }
+/- 1.81054103040935 [arcmin] (estimated 90% radius based on SNR)
+/- 0.678600934064407 [arcmin] (formal 1-sigma fit error)
SNR: 13.0262889292652
Angular difference between the analysis and refined position is 0.641155 arcmin
Partial Coding Fraction: 0.2128906 [ including projection effects ]
Duration
T90: 6.08000004291534 +/- 0.784652758243599
Measured from: 0.120000004768372
to: 6.20000004768372 [s; relative to TRIGTIME]
T50: 2.65600007772446 +/- 1.5783535763625
Measured from: 0.727999985218048
to: 3.3840000629425 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.107999980449677
to: 1.10799998044968 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0239999890327454
to: 6.93599998950958 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.253733 0.395081 0.235808 0.069745
0.032639 0.034745 0.031863 0.029996 [error]
Peak 0.079617 0.129969 0.102576 0.043512
0.013795 0.015064 0.013891 0.011783 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 6.960 -0.024 6.936
T90 6.080 0.120 6.200
T50 2.656 0.728 3.384
Peak 1.000 0.108 1.108
====== 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 -1.652 -0.186 0.182 - - - 9.09e-03 -1.06e-03 1.05e-03 70.190 57
CPL -0.798 -0.837 1.117 62.998 -15.558 393.682 2.68e-02 -2.68e-02 8.51e-02 67.170 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 -1.389 -0.216 0.216 - - - 2.36e-02 -2.98e-03 2.98e-03 61.130 57
CPL -1.301 -1.695 0.767 411.019 -411.019 -411.019 2.61e-02 -2.61e-02 3.47e-02 61.170 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 9.32e-08 1.56e-07 1.99e-07 5.06e-07 5.88e-07 9.54e-07 erg/cm2
90%_error_low -1.52e-08 -1.69e-08 -3.06e-08 -1.43e-07 -7.26e-08 -1.75e-07 erg/cm2
90%_error_hi 1.57e-08 1.68e-08 3.07e-08 1.76e-07 7.36e-08 2.01e-07 erg/cm2
Peak flux PL 8.71e-01 9.37e-01 7.16e-01 8.92e-01 2.86e+00 3.42e+00 ph/cm2/s
90%_error_low -1.92e-01 -1.33e-01 -1.10e-01 -2.53e-01 -3.71e-01 -4.37e-01 ph/cm2/s
90%_error_hi 2.04e-01 1.31e-01 1.08e-01 3.07e-01 3.72e-01 4.40e-01 ph/cm2/s
Fluence CPL 8.47e-08 1.73e-07 1.99e-07 1.43e-07 5.41e-07 5.99e-07 erg/cm2
90%_error_low -1.77e-08 -2.35e-08 -3.73e-08 -1.01e-07 -8.51e-08 -1.33e-07 erg/cm2
90%_error_hi 1.78e-08 2.52e-08 3.47e-08 3.45e-07 8.70e-08 3.46e-07 erg/cm2
Peak flux CPL 8.72e-01 9.37e-01 7.16e-01 8.91e-01 2.86e+00 3.41e+00 ph/cm2/s
90%_error_low -1.93e-01 -1.32e-01 -1.09e-01 -5.33e-01 -3.71e-01 -6.74e-01 ph/cm2/s
90%_error_hi 1.65e-01 1.50e-01 1.26e-01 1.70e-01 3.71e-01 4.33e-01 ph/cm2/s
======================================================================
Special notes of this burst