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 20 01:08:15 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger313954
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Trigger: 00313954 Segment: 000
BAT Trigger Time: 235048360.832 [s; MET]
Trigger Stop: 235048361.088 [s; MET]
UTC: 2008-06-13T11:12:37.968880 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 173.79663866518 Dec: -7.09837558340558 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.32
Image Trigger?: NO
Rate S/N Ratio: 57.0087712549569 [ if not an image trigger ]
Image S/N Ratio: 11.32
Analysis Position: [ source = BAT ]
RA: 173.79663866518 Dec: -7.09837558340558 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 173.805091560328 Dec: -7.10155640158559 [deg; J2000]
{ 11h 35m 13.2s , -07d 06' 05.6" }
+/- 0.616732357783413 [arcmin] (estimated 90% radius based on SNR)
+/- 0.204414511703529 [arcmin] (formal 1-sigma fit error)
SNR: 60.6708650546367
Angular difference between the analysis and refined position is 0.538255 arcmin
Partial Coding Fraction: 0.890625 [ including projection effects ]
Duration
T90: 79.4480000138283 +/- 9.4565693400353
Measured from: -1.3759999871254
to: 78.0720000267029 [s; relative to TRIGTIME]
T50: 25.8240000009537 +/- 1.42303899224837
Measured from: 6.95200002193451
to: 32.7760000228882 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.22800001502037
to: 3.22800001502037 [s; relative to TRIGTIME]
Total Fluence
Measured from: -5.283999979496
to: 129.836000025272 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.076983 3.170205 2.655151 0.891102
0.059143 0.062684 0.056408 0.049633 [error]
Peak 0.055471 0.109308 0.140689 0.059798
0.006231 0.007391 0.007560 0.006723 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 135.120 -5.284 129.836
T90 79.448 -1.376 78.072
T50 25.824 6.952 32.776
Peak 1.000 2.228 3.228
====== 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 -1.332 -0.048 0.048 - - - 4.31e-03 -1.05e-04 1.05e-04 54.610 57
CPL -1.295 -0.082 0.054 999.053 -999.053 -999.053 4.49e-03 -2.68e-04 2.61e-04 55.610 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 -0.745 -0.116 0.119 - - - 2.39e-02 -1.58e-03 1.57e-03 54.310 57
CPL -0.738 -0.115 0.121 9999.350 -9999.350 -9999.350 2.40e-02 -1.43e-03 1.01e-02 54.330 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 6.36e-07 1.30e-06 2.06e-06 7.27e-06 5.72e-06 1.13e-05 erg/cm2
90%_error_low -3.32e-08 -3.88e-08 -5.91e-08 -4.90e-07 -1.47e-07 -5.15e-07 erg/cm2
90%_error_hi 3.39e-08 3.87e-08 5.89e-08 5.15e-07 1.47e-07 5.37e-07 erg/cm2
Peak flux PL 4.78e-01 7.58e-01 9.04e-01 2.10e+00 2.75e+00 4.24e+00 ph/cm2/s
90%_error_low -6.82e-02 -6.68e-02 -5.85e-02 -2.96e-01 -1.75e-01 -3.17e-01 ph/cm2/s
90%_error_hi 7.21e-02 6.61e-02 5.83e-02 3.30e-01 1.76e-01 3.31e-01 ph/cm2/s
Fluence CPL 6.35e-07 1.29e-06 2.04e-06 7.46e-06 5.75e-06 1.12e-05 erg/cm2
90%_error_low N/A -3.27e-08 N/A -1.16e-06 -1.83e-07 -9.04e-07 erg/cm2
90%_error_hi N/A 4.48e-08 N/A 1.41e-08 1.11e-07 5.26e-07 erg/cm2
Peak flux CPL 4.77e-01 7.57e-01 9.01e-01 2.22e+00 2.75e+00 4.34e+00 ph/cm2/s
90%_error_low N/A -6.54e-02 -5.72e-02 -8.13e-01 -1.85e-01 -7.81e-01 ph/cm2/s
90%_error_hi N/A 6.89e-02 6.67e-02 -9.32e-02 1.79e-01 1.98e-01 ph/cm2/s
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