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 19:05:41 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger176620
======================================================================
Trigger: 00176620 Segment: 000
BAT Trigger Time: 158518482.176 [s; MET]
Trigger Stop: 158518490.368 [s; MET]
UTC: 2006-01-09T16:54:41.230260 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 282.709997814732 Dec: 31.9895994348777 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.1
Image Trigger?: NO
Rate S/N Ratio: 10.9087121146357 [ if not an image trigger ]
Image S/N Ratio: 7.1
Analysis Position: [ source = BAT ]
RA: 282.709997814732 Dec: 31.9895994348777 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 282.71 Dec: 31.9896 [deg; J2000]
{ 18h 50m 50.4s , +31d 59' 22.6" }
+/- 2.60540488989 [arcmin] (estimated 90% radius based on SNR)
SNR: 7.74582596529
Angular difference between the analysis and refined position is 0.000116 arcmin
Partial Coding Fraction: 0.921875 [ including projection effects ]
Duration
T90: 115.592000007629 +/- 11.1491641034503
Measured from: 1.46000000834465
to: 117.052000015974 [s; relative to TRIGTIME]
T50: 83.3160000145435 +/- 17.4548271706558
Measured from: 12.4000000059605
to: 95.716000020504 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 90.1840000152588
to: 91.1840000152588 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.96799999475479
to: 126.768000006676 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.406310 0.508545 0.273427 0.038994
0.055023 0.056339 0.048130 0.040655 [error]
Peak 0.014924 0.024784 0.015563 0.007916
0.004996 0.005130 0.004463 0.003548 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 128.736 -1.968 126.768
T90 115.592 1.460 117.052
T50 83.316 12.400 95.716
Peak 1.000 90.184 91.184
====== 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 -1.889 -0.243 0.228 - - - 5.58e-04 -8.95e-05 8.71e-05 41.770 57
CPL -1.307 -0.863 1.101 50.217 -40.462 -50.217 1.21e-03 -1.21e-03 4.09e-03 40.500 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 -1.555 -0.415 0.397 - - - 3.63e-03 -9.61e-04 9.42e-04 49.160 57
CPL -0.269 -1.484 2.579 62.164 -18.138 -62.164 1.78e-02 -1.78e-02 4.10e-01 47.440 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 1.32e-07 1.92e-07 2.07e-07 4.17e-07 6.60e-07 9.49e-07 erg/cm2
90%_error_low -2.33e-08 -2.45e-08 -4.44e-08 -1.54e-07 -1.02e-07 -2.08e-07 erg/cm2
90%_error_hi 2.40e-08 2.45e-08 4.53e-08 2.04e-07 1.05e-07 2.48e-07 erg/cm2
Peak flux PL 1.57e-01 1.53e-01 1.04e-01 1.12e-01 4.60e-01 5.27e-01 ph/cm2/s
90%_error_low -5.66e-02 -3.86e-02 -3.42e-02 -5.78e-02 -1.13e-01 -1.32e-01 ph/cm2/s
90%_error_hi 6.15e-02 3.83e-02 3.43e-02 8.59e-02 1.13e-01 1.35e-01 ph/cm2/s
Fluence CPL 1.26e-07 2.06e-07 2.03e-07 1.56e-07 6.21e-07 6.91e-07 erg/cm2
90%_error_low -2.59e-08 -3.11e-08 -5.27e-08 -1.20e-07 -1.13e-07 -1.72e-07 erg/cm2
90%_error_hi 2.59e-08 3.41e-08 4.95e-08 3.69e-07 1.19e-07 3.55e-07 erg/cm2
Peak flux CPL 1.32e-01 1.76e-01 1.10e-01 3.05e-02 4.41e-01 4.48e-01 ph/cm2/s
90%_error_low -6.69e-02 -4.88e-02 -4.26e-02 -3.05e-02 -1.16e-01 -1.21e-01 ph/cm2/s
90%_error_hi 7.04e-02 5.30e-02 4.11e-02 1.10e-01 1.16e-01 1.58e-01 ph/cm2/s
======================================================================
Special notes of this burst