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: Mon Jan 13 04:33:50 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger522197
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Trigger: 00522197 Segment: 000
BAT Trigger Time: 358650778.112 [s; MET]
Trigger Stop: 358650779.136 [s; MET]
UTC: 2012-05-14T01:12:49.907220 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 282.990951117893 Dec: -4.25198537883337 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 12.68
Image Trigger?: NO
Rate S/N Ratio: 20.4939015319192 [ if not an image trigger ]
Image S/N Ratio: 12.68
Analysis Position: [ source = BAT ]
RA: 282.990951117893 Dec: -4.25198537883337 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 283.000943264193 Dec: -4.25764758427625 [deg; J2000]
{ 18h 52m 00.2s , -04d 15' 27.5" }
+/- 1.11909635596373 [arcmin] (estimated 90% radius based on SNR)
+/- 0.528974345327054 [arcmin] (formal 1-sigma fit error)
SNR: 25.900472802228
Angular difference between the analysis and refined position is 0.687659 arcmin
Partial Coding Fraction: 0.6171875 [ including projection effects ]
Duration
T90: 164.343999922276 +/- 5.84277336502904
Measured from: -6.46399998664856
to: 157.879999935627 [s; relative to TRIGTIME]
T50: 60.2559999227524 +/- 6.01174983947242
Measured from: -0.303999960422516
to: 59.9519999623299 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.220000028610229
to: 1.22000002861023 [s; relative to TRIGTIME]
Total Fluence
Measured from: -8.75199997425079
to: 165.551999986172 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.327145 1.672550 1.280816 0.238409
0.092936 0.085119 0.071023 0.058886 [error]
Peak 0.041254 0.088243 0.083985 0.034039
0.009808 0.009424 0.008146 0.006091 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 174.304 -8.752 165.552
T90 164.344 -6.464 157.880
T50 60.256 -0.304 59.952
Peak 1.000 0.220 1.220
====== 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 -1.569 -0.103 0.103 - - - 1.71e-03 -9.63e-05 9.60e-05 42.830 57
CPL -1.426 -0.232 0.410 209.817 -209.817 -209.817 2.00e-03 -3.79e-04 1.12e-03 42.430 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 -1.179 -0.188 0.195 - - - 1.66e-02 -1.85e-03 1.84e-03 67.590 57
CPL -0.933 -0.411 0.835 254.531 -254.531 -254.531 2.13e-02 -7.91e-03 2.60e-02 67.260 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 4.06e-07 7.15e-07 9.64e-07 2.67e-06 2.80e-06 4.76e-06 erg/cm2
90%_error_low -4.14e-08 -4.37e-08 -6.98e-08 -4.05e-07 -1.67e-07 -4.56e-07 erg/cm2
90%_error_hi 4.29e-08 4.34e-08 6.95e-08 4.53e-07 1.68e-07 4.93e-07 erg/cm2
Peak flux PL 5.04e-01 6.14e-01 5.42e-01 8.24e-01 1.95e+00 2.48e+00 ph/cm2/s
90%_error_low -1.13e-01 -8.82e-02 -6.24e-02 -1.87e-01 -2.31e-01 -2.70e-01 ph/cm2/s
90%_error_hi 1.22e-01 8.69e-02 6.19e-02 2.20e-01 2.33e-01 2.72e-01 ph/cm2/s
Fluence CPL 3.94e-07 7.24e-07 9.75e-07 2.17e-06 2.77e-06 4.26e-06 erg/cm2
90%_error_low -5.11e-08 -4.85e-08 -7.46e-08 -8.99e-07 -1.85e-07 -9.12e-07 erg/cm2
90%_error_hi 4.32e-08 4.96e-08 7.59e-08 1.02e-06 1.84e-07 6.54e-07 erg/cm2
Peak flux CPL 4.70e-01 6.20e-01 5.59e-01 6.55e-01 1.92e+00 2.30e+00 ph/cm2/s
90%_error_low -1.44e-01 -9.17e-02 -7.51e-02 -3.10e-01 -2.41e-01 -4.17e-01 ph/cm2/s
90%_error_hi 1.47e-01 9.27e-02 8.10e-02 2.17e-01 2.42e-01 4.19e-01 ph/cm2/s
======================================================================