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: Wed Jan 22 20:32:29 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger152325
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Trigger: 00152325 Segment: 000
BAT Trigger Time: 146861834.816 [s; MET]
Trigger Stop: 146861835.84 [s; MET]
UTC: 2005-08-27T18:57:15.118740 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 64.2790125123005 Dec: 18.2176224509772 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.71
Image Trigger?: NO
Rate S/N Ratio: 24.8596057893121 [ if not an image trigger ]
Image S/N Ratio: 8.71
Analysis Position: [ source = BAT ]
RA: 64.2790125123005 Dec: 18.2176224509772 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 64.2936814449602 Dec: 18.2179068273975 [deg; J2000]
{ 04h 17m 10.5s , +18d 13' 04.5" }
+/- 1.1001741426978 [arcmin] (estimated 90% radius based on SNR)
+/- 0.339243205319467 [arcmin] (formal 1-sigma fit error)
SNR: 26.5391959252987
Angular difference between the analysis and refined position is 0.836193 arcmin
Partial Coding Fraction: 0.53125 [ including projection effects ]
Duration
T90: 50.0320000052452 +/- 9.12902361374115
Measured from: -22.7040000259876
to: 27.3279999792576 [s; relative to TRIGTIME]
T50: 10.7520000040531 +/- 1.72429694742584
Measured from: -6.87200000882149
to: 3.87999999523163 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.339999973773956
to: 1.33999997377396 [s; relative to TRIGTIME]
Total Fluence
Measured from: -31.1840000152588
to: 36.1239999830723 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.729243 1.138659 0.946612 0.296056
0.055561 0.057720 0.048913 0.039434 [error]
Peak 0.037559 0.090162 0.078089 0.028223
0.007220 0.008290 0.007587 0.005838 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 67.308 -31.184 36.124
T90 50.032 -22.704 27.328
T50 10.752 -6.872 3.880
Peak 1.000 0.340 1.340
====== 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 -1.361 -0.098 0.099 - - - 3.20e-03 -1.72e-04 1.72e-04 52.650 57
CPL -1.278 -0.265 0.336 474.100 -474.100 -474.100 3.50e-03 -4.61e-04 1.45e-03 52.680 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 -1.175 -0.169 0.172 - - - 1.60e-02 -1.64e-03 1.64e-03 47.950 57
CPL -0.638 -0.605 0.768 137.550 -52.390 -137.550 2.88e-02 -1.35e-02 3.56e-02 46.010 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 2.41e-07 4.83e-07 7.52e-07 2.58e-06 2.10e-06 4.05e-06 erg/cm2
90%_error_low -2.53e-08 -3.03e-08 -4.90e-08 -3.61e-07 -1.21e-07 -3.92e-07 erg/cm2
90%_error_hi 2.62e-08 3.01e-08 4.87e-08 4.01e-07 1.22e-07 4.24e-07 erg/cm2
Peak flux PL 4.82e-01 5.89e-01 5.22e-01 7.97e-01 1.87e+00 2.39e+00 ph/cm2/s
90%_error_low -9.09e-02 -7.15e-02 -6.06e-02 -1.77e-01 -1.97e-01 -2.56e-01 ph/cm2/s
90%_error_hi 9.62e-02 7.06e-02 6.00e-02 2.05e-01 1.97e-01 2.60e-01 ph/cm2/s
Fluence CPL 2.40e-07 4.84e-07 7.55e-07 2.58e-06 2.09e-06 3.93e-06 erg/cm2
90%_error_low -3.13e-08 -3.14e-08 -5.12e-08 -1.11e-06 -1.29e-07 -9.74e-07 erg/cm2
90%_error_hi 2.26e-08 3.33e-08 5.52e-08 2.28e-07 1.25e-07 5.23e-07 erg/cm2
Peak flux CPL 4.29e-01 6.15e-01 5.54e-01 4.66e-01 1.84e+00 2.06e+00 ph/cm2/s
90%_error_low -1.09e-01 -8.02e-02 -7.25e-02 -2.17e-01 -2.02e-01 -3.03e-01 ph/cm2/s
90%_error_hi 1.14e-01 8.24e-02 7.44e-02 4.03e-01 2.02e-01 4.53e-01 ph/cm2/s
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