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 Jan 20 07:26:05 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger290843
======================================================================
Trigger: 00290843 Segment: 000
BAT Trigger Time: 211336606.208 [s; MET]
Trigger Stop: 211336607.232 [s; MET]
UTC: 2007-09-13T00:36:43.987920 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 228.831779421729 Dec: -24.3419572889613 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.63
Image Trigger?: NO
Rate S/N Ratio: 14.422205101856 [ if not an image trigger ]
Image S/N Ratio: 9.63
Analysis Position: [ source = BAT ]
RA: 228.831779421729 Dec: -24.3419572889613 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 228.735789482905 Dec: -24.2788796947602 [deg; J2000]
{ 15h 14m 56.6s , -24d 16' 44.0" }
+/- 1.76794997358706 [arcmin] (estimated 90% radius based on SNR)
+/- 0.835902820981109 [arcmin] (formal 1-sigma fit error)
SNR: 13.4768951213991
Angular difference between the analysis and refined position is 6.470895 arcmin
Partial Coding Fraction: 0.515625 [ including projection effects ]
Duration
T90: 2.68399998545647 +/- 0.563560121493796
Measured from: -1.49599999189377
to: 1.1879999935627 [s; relative to TRIGTIME]
T50: 1.2320000231266 +/- 0.597836080778623
Measured from: -0.636000007390976
to: 0.596000015735626 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.259999990463257
to: 0.740000009536743 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.58399999141693
to: 1.29199999570847 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.058998 0.104919 0.072394 0.004227
0.012905 0.013842 0.012120 0.010087 [error]
Peak 0.018164 0.045856 0.029994 0.011696
0.007682 0.008285 0.007253 0.005851 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 2.876 -1.584 1.292
T90 2.684 -1.496 1.188
T50 1.232 -0.636 0.596
Peak 1.000 -0.260 0.740
====== 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 -1.412 -0.239 0.241 - - - 6.11e-03 -9.46e-04 9.45e-04 67.490 57
CPL 0.723 -1.402 2.144 62.314 -11.620 30.598 7.44e-02 -7.44e-02 8.19e-01 59.500 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 -1.264 -0.336 0.350 - - - 7.54e-03 -1.62e-03 1.62e-03 66.560 57
CPL 0.178 -1.545 2.809 78.556 -24.926 -78.556 3.80e-02 -3.80e-02 9.00e-01 64.180 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 2.07e-08 4.01e-08 6.02e-08 1.96e-07 1.69e-07 3.17e-07 erg/cm2
90%_error_low -5.16e-09 -6.71e-09 -1.11e-08 -6.55e-08 -2.79e-08 -7.62e-08 erg/cm2
90%_error_hi 5.52e-09 6.65e-09 1.11e-08 8.40e-08 2.82e-08 9.07e-08 erg/cm2
Peak flux PL 2.47e-01 2.87e-01 2.39e-01 3.35e-01 8.93e-01 1.11e+00 ph/cm2/s
90%_error_low -9.21e-02 -7.35e-02 -5.64e-02 -1.35e-01 -2.01e-01 -2.39e-01 ph/cm2/s
90%_error_hi 1.04e-01 7.21e-02 5.57e-02 1.81e-01 2.03e-01 2.41e-01 ph/cm2/s
Fluence CPL 1.46e-08 4.90e-08 6.55e-08 2.38e-08 1.48e-07 1.53e-07 erg/cm2
90%_error_low -6.12e-09 -9.21e-09 -1.53e-08 -1.85e-08 -2.98e-08 -3.40e-08 erg/cm2
90%_error_hi 6.62e-09 9.85e-09 1.43e-08 5.55e-08 3.15e-08 5.82e-08 erg/cm2
Peak flux CPL 1.85e-01 3.23e-01 2.72e-01 1.02e-01 8.55e-01 8.82e-01 ph/cm2/s
90%_error_low -1.03e-01 -8.93e-02 -6.92e-02 -1.02e-01 -2.05e-01 -2.26e-01 ph/cm2/s
90%_error_hi 1.22e-01 9.75e-02 7.21e-02 2.87e-01 2.07e-01 3.11e-01 ph/cm2/s
======================================================================
Special notes of this burst