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: Mon Jan 13 19:26:22 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger506070
======================================================================
Trigger: 00506070 Segment: 000
BAT Trigger Time: 340992432.448 [s; MET]
Trigger Stop: 340992433.472 [s; MET]
UTC: 2011-10-22T16:07:04.954100 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 275.871554015748 Dec: -23.667890214955 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 12.41
Image Trigger?: NO
Rate S/N Ratio: 18.6279360101972 [ if not an image trigger ]
Image S/N Ratio: 12.41
Analysis Position: [ source = BAT ]
RA: 275.871554015748 Dec: -23.667890214955 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 275.87151383965 Dec: -23.667052180839 [deg; J2000]
{ 18h 23m 29.2s , -23d 40' 01.4" }
+/- 0.923147456026262 [arcmin] (estimated 90% radius based on SNR)
+/- 0.351109484324111 [arcmin] (formal 1-sigma fit error)
SNR: 34.0981743313111
Angular difference between the analysis and refined position is 0.050330 arcmin
Partial Coding Fraction: 0.6640625 [ including projection effects ]
Duration
T90: 22.8199999928474 +/- 4.28261648505658
Measured from: -14.2200000286102
to: 8.59999996423721 [s; relative to TRIGTIME]
T50: 8.17599999904633 +/- 0.984893847997244
Measured from: -4.66800004243851
to: 3.50799995660782 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -1.46399998664856
to: -0.46399998664856 [s; relative to TRIGTIME]
Total Fluence
Measured from: -17.6920000314713
to: 17.5920000076294 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.002979 1.414873 0.824569 0.199698
0.048580 0.047392 0.041762 0.039635 [error]
Peak 0.076016 0.119071 0.071882 0.008056
0.008818 0.008976 0.007803 0.006799 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 35.284 -17.692 17.592
T90 22.820 -14.220 8.600
T50 8.176 -4.668 3.508
Peak 1.000 -1.464 -0.464
====== 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 -1.725 -0.081 0.080 - - - 6.33e-03 -2.92e-04 2.91e-04 71.870 57
CPL -0.933 -0.366 0.401 63.704 -8.098 16.385 1.63e-02 -5.69e-03 9.92e-03 56.810 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 -1.706 -0.163 0.158 - - - 1.82e-02 -1.85e-03 1.83e-03 65.020 57
CPL -0.905 -0.667 0.796 62.141 -13.494 76.842 4.96e-02 -2.76e-02 8.39e-02 60.680 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 3.53e-07 5.65e-07 6.83e-07 1.62e-06 2.07e-06 3.22e-06 erg/cm2
90%_error_low -2.57e-08 -2.52e-08 -4.24e-08 -2.05e-07 -9.92e-08 -2.41e-07 erg/cm2
90%_error_hi 2.63e-08 2.51e-08 4.25e-08 2.24e-07 9.98e-08 2.56e-07 erg/cm2
Peak flux PL 9.14e-01 8.14e-01 4.99e-01 4.64e-01 2.42e+00 2.69e+00 ph/cm2/s
90%_error_low -1.29e-01 -7.58e-02 -6.52e-02 -1.09e-01 -2.24e-01 -2.49e-01 ph/cm2/s
90%_error_hi 1.34e-01 7.57e-02 6.52e-02 1.29e-01 2.24e-01 2.50e-01 ph/cm2/s
Fluence CPL 3.10e-07 6.06e-07 6.91e-07 5.46e-07 1.92e-06 2.15e-06 erg/cm2
90%_error_low -3.12e-08 -3.15e-08 -4.72e-08 -1.93e-07 -1.17e-07 -2.26e-07 erg/cm2
90%_error_hi 3.18e-08 3.20e-08 4.70e-08 3.13e-07 1.18e-07 3.30e-07 erg/cm2
Peak flux CPL 8.20e-01 8.85e-01 5.12e-01 1.85e-01 2.34e+00 2.40e+00 ph/cm2/s
90%_error_low -1.51e-01 -9.65e-02 -7.37e-02 -1.01e-01 -2.33e-01 -2.60e-01 ph/cm2/s
90%_error_hi 1.54e-01 1.00e-01 7.34e-02 2.08e-01 2.33e-01 2.95e-01 ph/cm2/s
======================================================================
Special notes of this burst