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 Sep 15 19:50:19 EDT 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger294120
======================================================================
Trigger: 00294120 Segment: 000
BAT Trigger Time: 213970161.344 [s; MET]
Trigger Stop: 213970177.728 [s; MET]
UTC: 2007-10-13T12:09:19.055540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 279.524890921608 Dec: 33.8574571315757 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.84
Image Trigger?: NO
Rate S/N Ratio: 10.9087121146357 [ if not an image trigger ]
Image S/N Ratio: 7.84
Analysis Position: [ source = BAT ]
RA: 279.524890921608 Dec: 33.8574571315757 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 279.525 Dec: 33.8575 [deg; J2000]
{ 18h 38m 06.0s , +33d 51' 27.0" }
+/- 2.66158841925 [arcmin] (estimated 90% radius based on SNR)
SNR: 7.51330565953
Angular difference between the analysis and refined position is 0.006013 arcmin
Partial Coding Fraction: 0.703125 [ including projection effects ]
Duration
T90: 75.5840000212193 +/- 25.7891412844253
Measured from: 4.11199998855591
to: 79.6960000097752 [s; relative to TRIGTIME]
T50: 49.216000020504 +/- 35.7333842698928
Measured from: 9.16799998283386
to: 58.3840000033379 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 3.64399999380112
to: 4.64399999380112 [s; relative to TRIGTIME]
Total Fluence
Measured from: 3.59999999403954
to: 81.5519999861717 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.232546 0.211041 0.098366 0.135400
0.053378 0.054153 0.046876 0.040838 [error]
Peak 0.019051 0.012944 0.007794 0.008489
0.006024 0.006091 0.005293 0.004623 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 77.952 3.600 81.552
T90 75.584 4.112 79.696
T50 49.216 9.168 58.384
Peak 1.000 3.644 4.644
====== 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 -1.607 -0.517 0.501 - - - 5.42e-04 -1.50e-04 1.41e-04 45.280 57
CPL -1.642 -1.501 0.348 9999.360 N/A N/A 5.32e-04 N/A N/A 45.310 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
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 -1.924 -1.178 0.989 - - - 2.50e-03 -2.50e-03 1.32e-03 54.900 57
CPL -1.905 -1.790 1.042 9999.350 N/A N/A 2.52e-03 N/A N/A 54.910 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 5.96e-08 1.03e-07 1.35e-07 3.60e-07 3.95e-07 6.57e-07 erg/cm2
90%_error_low -2.44e-08 -2.60e-08 -5.04e-08 -2.20e-07 -1.14e-07 -2.74e-07 erg/cm2
90%_error_hi 2.62e-08 2.54e-08 4.95e-08 3.95e-07 1.17e-07 4.15e-07 erg/cm2
Peak flux PL 1.55e-01 1.21e-01 6.38e-02 4.87e-02 3.62e-01 3.88e-01 ph/cm2/s
90%_error_low -1.55e-01 -5.28e-02 -6.38e-02 -4.87e-02 -1.49e-01 -1.64e-01 ph/cm2/s
90%_error_hi 1.02e-01 5.01e-02 5.01e-02 1.36e-01 1.49e-01 1.68e-01 ph/cm2/s
Fluence CPL 5.14e-08 7.15e-08 7.67e-08 1.88e-07 2.50e-07 3.88e-07 erg/cm2
90%_error_low N/A -4.30e-08 -4.51e-08 -1.11e-07 -1.47e-07 -1.73e-07 erg/cm2
90%_error_hi N/A 3.14e-08 2.64e-08 8.26e-08 9.10e-08 9.99e-08 erg/cm2
Peak flux CPL 1.39e-01 8.56e-02 3.59e-02 2.47e-02 2.72e-01 2.88e-01 ph/cm2/s
90%_error_low -1.07e-01 -8.56e-02 -3.59e-02 -2.47e-02 N/A N/A ph/cm2/s
90%_error_hi 1.11e-01 7.58e-02 4.52e-02 4.60e-02 N/A N/A ph/cm2/s
======================================================================
Special notes of this burst