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: Wed Jan 22 19:48:06 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger160672
======================================================================
Trigger: 00160672 Segment: 000
BAT Trigger Time: 151630313.472 [s; MET]
Trigger Stop: 151630314.496 [s; MET]
UTC: 2005-10-21T23:31:53.676000 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 126.037109457011 Dec: -45.5194340356682 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.77
Image Trigger?: NO
Rate S/N Ratio: 12.8062484748657 [ if not an image trigger ]
Image S/N Ratio: 6.77
Analysis Position: [ source = BAT ]
RA: 126.037109457011 Dec: -45.5194340356682 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 126.064511217234 Dec: -45.5333813978045 [deg; J2000]
{ 08h 24m 15.5s , -45d 32' 00.2" }
+/- 1.30959980926905 [arcmin] (estimated 90% radius based on SNR)
+/- 0.389546161074393 [arcmin] (formal 1-sigma fit error)
SNR: 20.6908112225524
Angular difference between the analysis and refined position is 1.423732 arcmin
Partial Coding Fraction: 0.8828125 [ including projection effects ]
Duration
T90: 46.5119999647141 +/- 11.4295224811572
Measured from: -3.13600000739098
to: 43.3759999573231 [s; relative to TRIGTIME]
T50: 19.2319999933243 +/- 5.62990868988388
Measured from: 0.84799998998642
to: 20.0799999833107 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.668000012636185
to: 0.331999987363815 [s; relative to TRIGTIME]
Total Fluence
Measured from: -4.64000001549721
to: 54.6879999935627 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.382033 0.543528 0.432633 0.081854
0.038033 0.039766 0.035643 0.032876 [error]
Peak 0.027368 0.035387 0.024993 0.007713
0.005198 0.005754 0.005182 0.004676 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 59.328 -4.640 54.688
T90 46.512 -3.136 43.376
T50 19.232 0.848 20.080
Peak 1.000 -0.668 0.332
====== 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 -1.544 -0.139 0.137 - - - 1.60e-03 -1.35e-04 1.34e-04 65.550 57
CPL -0.482 -0.627 0.727 68.683 -11.726 31.821 5.66e-03 -2.93e-03 7.45e-03 56.440 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 -1.378 -0.322 0.319 - - - 6.21e-03 -1.12e-03 1.11e-03 68.030 57
CPL -1.339 N/A N/A 855.617 N/A N/A 6.51e-03 N/A N/A 68.070 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 1.26e-07 2.26e-07 3.10e-07 8.80e-07 8.94e-07 1.54e-06 erg/cm2
90%_error_low -1.61e-08 -1.85e-08 -3.43e-08 -1.88e-07 -8.21e-08 -2.20e-07 erg/cm2
90%_error_hi 1.66e-08 1.85e-08 3.43e-08 2.19e-07 8.31e-08 2.45e-07 erg/cm2
Peak flux PL 2.27e-01 2.46e-01 1.89e-01 2.39e-01 7.53e-01 9.02e-01 ph/cm2/s
90%_error_low -6.88e-02 -4.77e-02 -4.32e-02 -9.67e-02 -1.34e-01 -1.65e-01 ph/cm2/s
90%_error_hi 7.47e-02 4.67e-02 4.23e-02 1.31e-01 1.34e-01 1.69e-01 ph/cm2/s
Fluence CPL 1.07e-07 2.51e-07 3.21e-07 2.28e-07 8.19e-07 9.07e-07 erg/cm2
90%_error_low -1.98e-08 -2.38e-08 -3.94e-08 -1.12e-07 -8.86e-08 -1.42e-07 erg/cm2
90%_error_hi 2.00e-08 2.44e-08 3.94e-08 2.40e-07 9.18e-08 2.48e-07 erg/cm2
Peak flux CPL 2.30e-01 2.45e-01 1.88e-01 2.51e-01 7.55e-01 9.17e-01 ph/cm2/s
90%_error_low -4.21e-02 -4.77e-02 -4.35e-02 N/A -1.41e-01 -2.63e-01 ph/cm2/s
90%_error_hi 4.21e-02 4.97e-02 4.82e-02 N/A 1.36e-01 1.46e-01 ph/cm2/s
======================================================================
Special notes of this burst