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 GROUND-DETECTED GRB DATA PROCESSING REPORT
Process Script: hand-made scripts that follow steps in batgrbproduct
but without using TDRSS info
Process Start Time: Wed Oct 22 22:19:09 EDT 2014
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/ground_detect_bursts/scripts
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BAT Trigger Time: 344960220.8
UTC: 2011-12-07T14:16:53.149 [includes UTCF correction]
Where From?: Ground analysis (best_duration.txt)
NOTE: BAT trigger time for ground-detected burst is the T100 start time.
Refined Position: [ source = BAT pre-slew image ]
RA: 92.9171248551 Dec: -39.5095501455 [deg; J2000]
{ 06h 11m 40.1s , -39d -30' -34.4" }
+/- 2.40645206989 [arcmin] (estimated 90% radius based on SNR)
SNR: 8.67662051258
Angular difference between the analysis and refined position is Usage: arcmin
Partial Coding Fraction: 1.000000e+00 [ including projection effects ]
Duration
T90: 16. +/- 1.6
Measured from: 0
to: 16 [s; relative to TRIGTIME]
T50: 9.60000002384186 +/- 1.6
Measured from: 3.2
to: 12.8 [s; relative to TRIGTIME]
====== Table of the duration information =============================
Value tstart tstop
T100 16.000 0.000 16.000
T90 16.000 0.000 16.000
T50 9.600 3.200 12.800
Peak 1.000 6.700 7.700
====== 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 -1.299 -0.357 0.367 - - - 1.66e-03 -3.26e-04 3.25e-04 44.660 57
CPL -1.298 -0.356 1.022 9999.300 -9999.300 -9999.300 1.67e-03 -3.27e-04 3.63e-03 44.660 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 -0.995 -0.834 1.097 - - - 2.98e-03 -1.33e-03 1.07e-03 65.050 57
CPL -1.075 1.075 0.914 9999.360 N/A N/A 3.02e-03 N/A N/A 65.100 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 1.77e-08 3.68e-08 5.99e-08 2.19e-07 1.66e-07 3.33e-07 erg/cm2
90%_error_low -6.13e-09 -8.03e-09 -1.51e-08 -1.00e-07 -3.66e-08 -1.14e-07 erg/cm2
90%_error_hi 6.66e-09 7.77e-09 1.48e-08 1.51e-07 3.73e-08 1.56e-07 erg/cm2
Peak flux PL 7.56e-02 1.03e-01 1.04e-01 1.89e-01 3.43e-01 4.70e-01 ph/cm2/s
90%_error_low -7.56e-02 -6.22e-02 -4.48e-02 -1.37e-01 -3.43e-01 -1.77e-01 ph/cm2/s
90%_error_hi 8.13e-02 5.01e-02 3.94e-02 3.55e-01 1.30e-01 2.60e-01 ph/cm2/s
Fluence CPL 1.81e-08 3.63e-08 5.91e-08 2.21e-07 1.68e-07 3.16e-07 erg/cm2
90%_error_low -7.09e-09 -7.54e-09 N/A -1.74e-07 -3.91e-08 -1.60e-07 erg/cm2
90%_error_hi 7.04e-09 8.81e-09 N/A 6.42e-08 3.40e-08 1.65e-07 erg/cm2
Peak flux CPL 6.15e-02 4.69e-02 2.51e-02 2.34e-02 1.43e-01 1.57e-01 ph/cm2/s
90%_error_low N/A -4.69e-02 -2.51e-02 -2.34e-02 -1.43e-01 -1.57e-01 ph/cm2/s
90%_error_hi N/A 3.03e-02 1.02e-02 1.81e-02 8.46e-02 7.35e-02 ph/cm2/s
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Special notes of this burst