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: Mon Sep 29 23:58:16 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: 344442169.6
UTC: 2011-12-01T14:22:41.969 [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: 190.486350489 Dec: 32.9936753105 [deg; J2000]
{ 12h 41m 56.7s , +32d 59' 37.2" }
+/- 1.94741615116 [arcmin] (estimated 90% radius based on SNR)
SNR: 11.7398533684
Angular difference between the analysis and refined position is Usage: arcmin
Partial Coding Fraction: 2.812500e-01 [ including projection effects ]
Duration
T90: 20.8000000119209 +/- 1.6
Measured from: 0
to: 20.8 [s; relative to TRIGTIME]
T50: 11.2000000476837 +/- 1.6
Measured from: 4.8
to: 16 [s; relative to TRIGTIME]
====== Table of the duration information =============================
Value tstart tstop
T100 20.800 0.000 20.800
T90 20.800 0.000 20.800
T50 11.200 4.800 16.000
Peak 1.000 1.900 2.900
====== 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 -1.670 -0.298 0.287 - - - 5.05e-03 -8.24e-04 7.97e-04 62.440 57
CPL -1.680 -0.341 -0.306 9999.360 N/A N/A 5.05e-03 N/A N/A 62.450 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 -1.127 -1.268 1.127 - - - 5.23e-03 -5.23e-03 2.38e-03 51.410 57
CPL -1.190 1.190 1.104 9999.340 N/A N/A 5.29e-03 N/A N/A 51.440 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 7.19e-08 1.19e-07 1.50e-07 3.75e-07 4.45e-07 7.15e-07 erg/cm2
90%_error_low -1.76e-08 -1.78e-08 -3.37e-08 -1.53e-07 -7.62e-08 -1.86e-07 erg/cm2
90%_error_hi 1.85e-08 1.76e-08 3.32e-08 2.13e-07 7.73e-08 2.33e-07 erg/cm2
Peak flux PL 1.48e-01 1.88e-01 1.74e-01 2.83e-01 6.05e-01 7.91e-01 ph/cm2/s
90%_error_low -1.48e-01 -1.88e-01 -1.07e-01 -2.83e-01 -6.05e-01 -3.57e-01 ph/cm2/s
90%_error_hi 2.32e-01 1.21e-01 8.24e-02 2.28e+00 3.18e-01 1.85e+00 ph/cm2/s
Fluence CPL 6.55e-08 8.63e-08 8.71e-08 1.95e-07 2.93e-07 4.35e-07 erg/cm2
90%_error_low -2.25e-08 -2.88e-08 -2.78e-08 N/A N/A N/A erg/cm2
90%_error_hi 2.11e-08 2.49e-08 2.13e-08 N/A N/A N/A erg/cm2
Peak flux CPL 1.55e-01 1.93e-01 1.72e-01 2.64e-01 6.12e-01 7.90e-01 ph/cm2/s
90%_error_low N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_hi N/A N/A N/A N/A N/A N/A ph/cm2/s
======================================================================
Special notes of this burst