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: Sun Jan 19 17:04:57 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger350854
======================================================================
Trigger: 00350854 Segment: 000
BAT Trigger Time: 262675808.064 [s; MET]
Trigger Stop: 262675809.088 [s; MET]
UTC: 2009-04-29T05:30:03.365540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 210.703996637861 Dec: 32.1634408652192 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 12.91
Image Trigger?: NO
Rate S/N Ratio: 24.6981780704569 [ if not an image trigger ]
Image S/N Ratio: 12.91
Analysis Position: [ source = BAT ]
RA: 210.703996637861 Dec: 32.1634408652192 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 210.673873097901 Dec: 32.1710159410349 [deg; J2000]
{ 14h 02m 41.7s , +32d 10' 15.7" }
+/- 1.22639967138261 [arcmin] (estimated 90% radius based on SNR)
+/- 0.40503102613087 [arcmin] (formal 1-sigma fit error)
SNR: 22.7248591822103
Angular difference between the analysis and refined position is 1.596053 arcmin
Partial Coding Fraction: 0.84375 [ including projection effects ]
Duration
T90: 5.58000001311302 +/- 0.994370163931796
Measured from: -3.65600001811981
to: 1.92399999499321 [s; relative to TRIGTIME]
T50: 2.45600000023842 +/- 0.272968854266336
Measured from: -1.89599999785423
to: 0.560000002384186 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.280000001192093
to: 0.719999998807907 [s; relative to TRIGTIME]
Total Fluence
Measured from: -4.46000000834465
to: 2.47999998927116 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.215565 0.293168 0.135516 0.000577
0.015594 0.016573 0.014284 0.012179 [error]
Peak 0.052691 0.085703 0.046581 0.010818
0.006276 0.006861 0.005823 0.004904 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 6.940 -4.460 2.480
T90 5.580 -3.656 1.924
T50 2.456 -1.896 0.560
Peak 1.000 -0.280 0.720
====== 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 -1.892 -0.130 0.126 - - - 5.85e-03 -4.97e-04 4.91e-04 60.810 57
CPL -0.543 -0.676 0.806 45.251 -5.450 8.403 3.45e-02 -2.02e-02 6.60e-02 47.280 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 -1.696 -0.168 0.163 - - - 1.23e-02 -1.35e-03 1.33e-03 60.930 57
CPL -0.653 -0.785 0.963 56.061 -10.842 41.905 4.76e-02 -3.01e-02 1.20e-01 55.540 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 7.50e-08 1.09e-07 1.17e-07 2.35e-07 3.73e-07 5.36e-07 erg/cm2
90%_error_low -7.68e-09 -7.72e-09 -1.34e-08 -4.95e-08 -3.11e-08 -6.46e-08 erg/cm2
90%_error_hi 7.85e-09 7.73e-09 1.35e-08 5.76e-08 3.16e-08 7.07e-08 erg/cm2
Peak flux PL 6.10e-01 5.47e-01 3.38e-01 3.17e-01 1.63e+00 1.81e+00 ph/cm2/s
90%_error_low -8.83e-02 -5.39e-02 -4.74e-02 -7.85e-02 -1.60e-01 -1.81e-01 ph/cm2/s
90%_error_hi 9.10e-02 5.39e-02 4.75e-02 9.27e-02 1.60e-01 1.82e-01 ph/cm2/s
Fluence CPL 6.58e-08 1.26e-07 1.09e-07 3.67e-08 3.29e-07 3.37e-07 erg/cm2
90%_error_low -9.05e-09 -1.12e-08 -1.79e-08 -2.14e-08 -3.38e-08 -3.97e-08 erg/cm2
90%_error_hi 9.09e-09 1.16e-08 1.68e-08 4.64e-08 3.60e-08 5.63e-08 erg/cm2
Peak flux CPL 5.47e-01 6.18e-01 3.41e-01 9.40e-02 1.58e+00 1.60e+00 ph/cm2/s
90%_error_low -1.02e-01 -7.56e-02 -5.80e-02 -5.84e-02 -1.64e-01 -1.76e-01 ph/cm2/s
90%_error_hi 1.03e-01 7.90e-02 5.52e-02 1.33e-01 1.64e-01 1.93e-01 ph/cm2/s
======================================================================
Special notes of this burst