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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Wed Jan 22 17:55:19 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger202442
======================================================================
Trigger: 00202442 Segment: 000
BAT Trigger Time: 164761222.208 [s; MET]
Trigger Stop: 164761223.232 [s; MET]
UTC: 2006-03-22T23:00:21.120860 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 274.244501992693 Dec: -36.6974174803287 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.93
Image Trigger?: NO
Rate S/N Ratio: 12.6491106406735 [ if not an image trigger ]
Image S/N Ratio: 6.93
Analysis Position: [ source = BAT ]
RA: 274.244501992693 Dec: -36.6974174803287 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 274.233938283178 Dec: -36.7082462403164 [deg; J2000]
{ 18h 16m 56.1s , -36d 42' 29.7" }
+/- 1.12008277268499 [arcmin] (estimated 90% radius based on SNR)
+/- 0.377090776256455 [arcmin] (formal 1-sigma fit error)
SNR: 25.8678937848661
Angular difference between the analysis and refined position is 0.824848 arcmin
Partial Coding Fraction: 0.8046875 [ including projection effects ]
Duration
T90: 229.472000002861 +/- 23.4945108472267
Measured from: -19.5200000107288
to: 209.951999992132 [s; relative to TRIGTIME]
T50: 170.784000009298 +/- 3.268028126179
Measured from: 15.7999999821186
to: 186.583999991417 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 182.187999993563
to: 183.187999993563 [s; relative to TRIGTIME]
Total Fluence
Measured from: -51.6240000128746
to: 268.211999982595 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.372754 3.418899 2.394127 0.494201
0.126911 0.114662 0.097387 0.083391 [error]
Peak 0.063242 0.099749 0.068867 0.014059
0.007955 0.007647 0.006749 0.004907 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 319.836 -51.624 268.212
T90 229.472 -19.520 209.952
T50 170.784 15.800 186.584
Peak 1.000 182.188 183.188
====== 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 -1.557 -0.073 0.073 - - - 1.80e-03 -7.36e-05 7.35e-05 60.830 57
CPL -1.066 -0.299 0.321 96.808 -20.078 68.606 3.14e-03 -8.82e-04 1.34e-03 52.590 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 -1.547 -0.155 0.153 - - - 1.61e-02 -1.51e-03 1.50e-03 41.130 57
CPL -0.742 -0.645 0.764 77.086 -17.841 103.084 4.15e-02 -2.17e-02 5.86e-02 36.430 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 7.77e-07 1.38e-06 1.87e-06 5.26e-06 5.42e-06 9.29e-06 erg/cm2
90%_error_low -5.76e-08 -6.15e-08 -9.69e-08 -5.75e-07 -2.35e-07 -6.44e-07 erg/cm2
90%_error_hi 5.90e-08 6.12e-08 9.67e-08 6.23e-07 2.36e-07 6.81e-07 erg/cm2
Peak flux PL 6.95e-01 6.81e-01 4.66e-01 5.01e-01 2.04e+00 2.34e+00 ph/cm2/s
90%_error_low -1.05e-01 -6.61e-02 -5.40e-02 -1.08e-01 -1.90e-01 -2.14e-01 ph/cm2/s
90%_error_hi 1.10e-01 6.57e-02 5.36e-02 1.25e-01 1.91e-01 2.14e-01 ph/cm2/s
Fluence CPL 7.06e-07 1.44e-06 1.93e-06 2.67e-06 5.22e-06 6.74e-06 erg/cm2
90%_error_low -6.99e-08 -7.14e-08 -1.06e-07 -8.29e-07 -2.67e-07 -8.64e-07 erg/cm2
90%_error_hi 7.12e-08 7.23e-08 1.07e-07 1.29e-06 2.67e-07 1.30e-06 erg/cm2
Peak flux CPL 6.03e-01 7.32e-01 4.93e-01 2.22e-01 1.97e+00 2.05e+00 ph/cm2/s
90%_error_low -1.26e-01 -7.92e-02 -6.15e-02 -1.06e-01 -1.99e-01 -2.32e-01 ph/cm2/s
90%_error_hi 1.30e-01 8.17e-02 6.26e-02 2.01e-01 1.99e-01 2.70e-01 ph/cm2/s
======================================================================