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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Wed Jan 22 20:44:44 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger151334
======================================================================
Trigger: 00151334 Segment: 000
BAT Trigger Time: 146274626.88 [s; MET]
Trigger Stop: 146274627.904 [s; MET]
UTC: 2005-08-20T23:50:27.194600 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 135.55688251993 Dec: -72.6677827863734 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.76
Image Trigger?: NO
Rate S/N Ratio: 14.2828568570857 [ if not an image trigger ]
Image S/N Ratio: 8.76
Analysis Position: [ source = BAT ]
RA: 135.55688251993 Dec: -72.6677827863734 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 135.607734559795 Dec: -72.640971198512 [deg; J2000]
{ 09h 02m 25.9s , -72d 38' 27.5" }
+/- 0.554048352105064 [arcmin] (estimated 90% radius based on SNR)
+/- 0.136007275792208 [arcmin] (formal 1-sigma fit error)
SNR: 70.7096772576704
Angular difference between the analysis and refined position is 1.848068 arcmin
Partial Coding Fraction: 0.96875 [ including projection effects ]
Duration
T90: 12.0640000104904 +/- 0.518906540230266
Measured from: 1.53999999165535
to: 13.6040000021458 [s; relative to TRIGTIME]
T50: 3.76400002837181 +/- 0.182603392004824
Measured from: 7.34799998998642
to: 11.1120000183582 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 8.58399999141693
to: 9.58399999141693 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.30799999833107
to: 15.0200000107288 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.682019 1.200545 1.054493 0.218161
0.021047 0.022720 0.020626 0.015268 [error]
Peak 0.082515 0.184423 0.194266 0.048699
0.006064 0.007096 0.007140 0.004812 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 15.328 -0.308 15.020
T90 12.064 1.540 13.604
T50 3.764 7.348 11.112
Peak 1.000 8.584 9.584
====== 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: 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 -1.318 -0.042 0.042 - - - 1.41e-02 -3.36e-04 3.36e-04 111.710 57
CPL -0.596 -0.189 0.197 110.021 -12.167 19.212 2.96e-02 -5.08e-03 6.41e-03 64.070 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 -1.003 -0.069 0.069 - - - 3.49e-02 -1.47e-03 1.47e-03 82.110 57
CPL -0.198 -0.302 0.325 128.211 -21.380 42.211 8.00e-02 -2.09e-02 3.04e-02 59.010 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 2.33e-07 4.79e-07 7.69e-07 2.76e-06 2.13e-06 4.24e-06 erg/cm2
90%_error_low -1.10e-08 -1.35e-08 -2.11e-08 -1.67e-07 -5.32e-08 -1.78e-07 erg/cm2
90%_error_hi 1.12e-08 1.35e-08 2.10e-08 1.74e-07 5.33e-08 1.84e-07 erg/cm2
Peak flux PL 8.93e-01 1.21e+00 1.21e+00 2.18e+00 4.01e+00 5.49e+00 ph/cm2/s
90%_error_low -7.26e-02 -6.22e-02 -5.49e-02 -2.00e-01 -1.72e-01 -2.51e-01 ph/cm2/s
90%_error_hi 7.48e-02 6.19e-02 5.47e-02 2.12e-01 1.72e-01 2.54e-01 ph/cm2/s
Fluence CPL 1.94e-07 4.98e-07 8.21e-07 1.23e-06 2.05e-06 2.74e-06 erg/cm2
90%_error_low -1.39e-08 -1.51e-08 -2.53e-08 -2.04e-07 -5.77e-08 -2.08e-07 erg/cm2
90%_error_hi 1.42e-08 1.51e-08 2.55e-08 2.55e-07 5.76e-08 2.55e-07 erg/cm2
Peak flux CPL 7.27e-01 1.27e+00 1.33e+00 1.08e+00 3.92e+00 4.41e+00 ph/cm2/s
90%_error_low -8.94e-02 -7.01e-02 -7.09e-02 -2.26e-01 -1.76e-01 -2.86e-01 ph/cm2/s
90%_error_hi 9.22e-02 7.05e-02 7.17e-02 2.96e-01 1.76e-01 3.32e-01 ph/cm2/s
======================================================================