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 17:38:38 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger349450
======================================================================
Trigger: 00349450 Segment: 000
BAT Trigger Time: 261674408 [s; MET]
Trigger Stop: 261674728 [s; MET]
UTC: 2009-04-17T15:20:03.333200 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 209.706264668258 Dec: 47.000469086625 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: NO [ by BAT flight software ]
Image S/N Ratio: 9.81
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 9.81
Analysis Position: [ source = BAT ]
RA: 209.706264668258 Dec: 47.000469086625 [deg; J2000]
Refined Position: [ source = BAT pre-slew image ]
RA: 209.706 Dec: 47.0005 [deg; J2000]
{ 13h 58m 49.4s , +47d 00' 01.8" }
+/- 1.85165129361 [arcmin] (estimated 90% radius based on SNR)
SNR: 12.6167577658
Angular difference between the analysis and refined position is 0.010988 arcmin
Partial Coding Fraction: 0.9453125 [ including projection effects ]
Duration
T90: 266.940000027418 +/- 35.3896461975869
Measured from: 332.803999990225
to: 599.744000017643 [s; relative to TRIGTIME]
T50: 146.280000001192 +/- 30.9583074703426
Measured from: 386.011999994516
to: 532.291999995708 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 409.699999988079
to: 410.699999988079 [s; relative to TRIGTIME]
Total Fluence
Measured from: 318.375999987125
to: 627.743999987841 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.452705 1.437020 1.039667 0.241893
0.084908 0.087772 0.077696 0.068468 [error]
Peak 0.017143 0.013875 0.007839 0.004109
0.004912 0.005006 0.004361 0.003855 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 309.368 318.376 627.744
T90 266.940 332.804 599.744
T50 146.280 386.012 532.292
Peak 1.000 409.700 410.700
====== 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 -1.814 -0.137 0.134 - - - 7.67e-04 -5.98e-05 5.88e-05 60.810 57
CPL -2.303 -0.139 0.549 112.858 N/A N/A 4.45e-04 N/A N/A 58.610 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 -1.980 -0.810 0.722 - - - 1.97e-03 -1.03e-03 9.95e-04 72.690 57
CPL -2.024 7.189 2.024 11.795 11.116 17.366 1.78e-03 -1.78e-03 7.58e+06 72.640 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 4.07e-07 6.18e-07 7.03e-07 1.53e-06 2.18e-06 3.25e-06 erg/cm2
90%_error_low -4.39e-08 -4.08e-08 -7.71e-08 -3.26e-07 -1.72e-07 -3.99e-07 erg/cm2
90%_error_hi 4.52e-08 4.08e-08 7.76e-08 3.84e-07 1.75e-07 4.45e-07 erg/cm2
Peak flux PL 1.29e-01 9.78e-02 4.96e-02 3.60e-02 2.93e-01 3.12e-01 ph/cm2/s
90%_error_low -6.33e-02 -3.83e-02 -3.04e-02 -3.60e-02 -1.10e-01 -1.21e-01 ph/cm2/s
90%_error_hi 6.43e-02 3.74e-02 3.57e-02 7.18e-02 1.10e-01 1.25e-01 ph/cm2/s
Fluence CPL 4.00e-07 5.23e-07 4.47e-07 1.52e-06 1.91e-06 3.25e-06 erg/cm2
90%_error_low -4.85e-08 -8.13e-08 -1.93e-07 N/A -2.31e-07 -5.22e-07 erg/cm2
90%_error_hi 3.66e-08 5.42e-08 1.35e-07 N/A 1.98e-07 4.49e-07 erg/cm2
Peak flux CPL 1.27e-01 9.66e-02 5.12e-02 4.67e-02 2.93e-01 3.17e-01 ph/cm2/s
90%_error_low -7.82e-02 -5.90e-02 -3.17e-02 -2.84e-02 -1.79e-01 -1.21e-01 ph/cm2/s
90%_error_hi 6.59e-02 3.70e-02 1.88e-02 1.46e-02 1.11e-01 1.21e-01 ph/cm2/s
======================================================================
Special notes of this burst