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 19:02:42 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger176702
======================================================================
Trigger: 00176702 Segment: 000
BAT Trigger Time: 158572878.72 [s; MET]
Trigger Stop: 158572879.232 [s; MET]
UTC: 2006-01-10T08:01:17.773060 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 72.740721621106 Dec: 28.3800293891184 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.92
Image Trigger?: NO
Rate S/N Ratio: 18.5202591774521 [ if not an image trigger ]
Image S/N Ratio: 7.92
Analysis Position: [ source = BAT ]
RA: 72.740721621106 Dec: 28.3800293891184 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 72.7386578133127 Dec: 28.4285627643664 [deg; J2000]
{ 04h 50m 57.3s , +28d 25' 42.8" }
+/- 0.737448770678398 [arcmin] (estimated 90% radius based on SNR)
+/- 0.238758501584685 [arcmin] (formal 1-sigma fit error)
SNR: 46.9972960001081
Angular difference between the analysis and refined position is 2.914039 arcmin
Partial Coding Fraction: 0.921875 [ including projection effects ]
Duration
T90: 21.33599999547 +/- 2.04848920027237
Measured from: 0.272000014781952
to: 21.608000010252 [s; relative to TRIGTIME]
T50: 7.74400001764297 +/- 0.746726173608233
Measured from: 2.71999999880791
to: 10.4640000164509 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.21999999880791
to: 2.21999999880791 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.56400001049042
to: 26.5879999995232 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.788194 0.910125 0.676515 0.150426
0.028603 0.029857 0.025933 0.021294 [error]
Peak 0.055383 0.093891 0.079826 0.005713
0.005923 0.006409 0.005916 0.004569 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 28.152 -1.564 26.588
T90 21.336 0.272 21.608
T50 7.744 2.720 10.464
Peak 1.000 1.220 2.220
====== 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 -1.635 -0.074 0.074 - - - 5.72e-03 -2.23e-04 2.22e-04 37.370 57
CPL -1.592 -0.113 0.247 491.385 -491.375 -491.385 6.00e-03 -4.89e-04 1.81e-03 37.430 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 -1.333 -0.125 0.125 - - - 1.62e-02 -1.26e-03 1.26e-03 69.170 57
CPL -0.257 -0.553 0.636 81.998 -14.488 34.696 5.57e-02 -2.57e-02 5.74e-02 56.770 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 3.95e-07 5.09e-07 1.32e-06 1.50e-06 2.46e-06 erg/cm2
90%_error_low -1.65e-08 -1.62e-08 -2.64e-08 -1.47e-07 -6.20e-08 -1.65e-07 erg/cm2
90%_error_hi 1.69e-08 1.62e-08 2.63e-08 1.60e-07 6.22e-08 1.75e-07 erg/cm2
Peak flux PL 5.66e-01 6.30e-01 5.00e-01 6.57e-01 1.94e+00 2.35e+00 ph/cm2/s
90%_error_low -7.41e-02 -5.35e-02 -4.65e-02 -1.15e-01 -1.52e-01 -1.89e-01 ph/cm2/s
90%_error_hi 7.70e-02 5.32e-02 4.63e-02 1.29e-01 1.53e-01 1.90e-01 ph/cm2/s
Fluence CPL 2.33e-07 3.95e-07 5.09e-07 1.31e-06 1.50e-06 2.41e-06 erg/cm2
90%_error_low -2.09e-08 -1.61e-08 -2.49e-08 -4.45e-07 -7.03e-08 -4.12e-07 erg/cm2
90%_error_hi 1.26e-08 1.82e-08 2.77e-08 9.98e-08 6.17e-08 2.09e-07 erg/cm2
Peak flux CPL 4.64e-01 6.93e-01 5.45e-01 2.39e-01 1.87e+00 1.94e+00 ph/cm2/s
90%_error_low -8.81e-02 -6.49e-02 -5.51e-02 -9.28e-02 -1.57e-01 -1.84e-01 ph/cm2/s
90%_error_hi 9.10e-02 6.64e-02 5.60e-02 1.48e-01 1.57e-01 2.05e-01 ph/cm2/s
======================================================================
Special notes of this burst