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: Fri Jan 17 15:23:53 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger436981
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Trigger: 00436981 Segment: 000
BAT Trigger Time: 309567018.688 [s; MET]
Trigger Stop: 309567019.712 [s; MET]
UTC: 2010-10-23T22:50:12.387740 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 317.954259194012 Dec: -65.3938290160607 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.54
Image Trigger?: NO
Rate S/N Ratio: 16.6733320005331 [ if not an image trigger ]
Image S/N Ratio: 8.54
Analysis Position: [ source = BAT ]
RA: 317.954259194012 Dec: -65.3938290160607 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 317.948074720175 Dec: -65.38923186277 [deg; J2000]
{ 21h 11m 47.5s , -65d 23' 21.2" }
+/- 1.35793896844732 [arcmin] (estimated 90% radius based on SNR)
+/- 0.55432133248174 [arcmin] (formal 1-sigma fit error)
SNR: 19.6466925747303
Angular difference between the analysis and refined position is 0.316161 arcmin
Partial Coding Fraction: 0.1103516 [ including projection effects ]
Duration
T90: 80.823999941349 +/- 2.11283695364665
Measured from: 0.807999968528748
to: 81.6319999098778 [s; relative to TRIGTIME]
T50: 15.0999999046326 +/- 1.07807980541383
Measured from: 49.555999994278
to: 64.6559998989105 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 57.3439999818802
to: 58.3439999818802 [s; relative to TRIGTIME]
Total Fluence
Measured from: -12.3080000281334
to: 137.267999947071 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 11.906794 16.150923 12.151793 2.786098
0.144773 0.160471 0.155380 0.164616 [error]
Peak 0.557706 0.970924 0.938500 0.278843
0.011891 0.015079 0.015630 0.011579 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 149.576 -12.308 137.268
T90 80.824 0.808 81.632
T50 15.100 49.556 64.656
Peak 1.000 57.344 58.344
====== 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 -1.537 -0.034 0.034 - - - 1.87e-02 -3.16e-04 3.16e-04 47.290 57
CPL -1.295 -0.142 0.147 163.069 -40.657 143.061 2.40e-02 -3.16e-03 3.76e-03 38.730 56
=== 1-s peak 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 -1.130 -0.038 0.038 - - - 1.82e-01 -3.73e-03 3.73e-03 62.310 57
CPL -0.879 -0.153 0.159 264.006 -78.753 298.354 2.33e-01 -3.19e-02 3.83e-02 54.370 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 3.71e-06 6.66e-06 9.17e-06 2.63e-05 2.64e-05 4.58e-05 erg/cm2
90%_error_low -1.35e-07 -1.38e-07 -1.87e-07 -1.26e-06 -4.58e-07 -1.34e-06 erg/cm2
90%_error_hi 1.38e-07 1.38e-07 1.87e-07 1.31e-06 4.59e-07 1.37e-06 erg/cm2
Peak flux PL 5.25e+00 6.58e+00 6.01e+00 9.58e+00 2.11e+01 2.74e+01 ph/cm2/s
90%_error_low -2.30e-01 -1.73e-01 -1.35e-01 -4.71e-01 -4.57e-01 -5.83e-01 ph/cm2/s
90%_error_hi 2.34e-01 1.73e-01 1.34e-01 4.87e-01 4.57e-01 5.86e-01 ph/cm2/s
Fluence CPL 3.47e-06 6.71e-06 9.34e-06 1.93e-05 2.59e-05 3.88e-05 erg/cm2
90%_error_low -1.86e-07 -1.44e-07 -2.11e-07 -3.04e-06 -5.39e-07 -3.09e-06 erg/cm2
90%_error_hi 1.89e-07 1.44e-07 2.12e-07 3.75e-06 5.37e-07 3.78e-06 erg/cm2
Peak flux CPL 4.87e+00 6.63e+00 6.19e+00 7.56e+00 2.08e+01 2.53e+01 ph/cm2/s
90%_error_low -3.10e-01 -1.79e-01 -1.70e-01 -9.93e-01 -4.90e-01 -1.15e+00 ph/cm2/s
90%_error_hi 3.16e-01 1.79e-01 1.71e-01 1.18e+00 4.91e-01 1.31e+00 ph/cm2/s
======================================================================