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 04:54:09 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger302506
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Trigger: 00302506 Segment: 000
BAT Trigger Time: 223890954.304 [s; MET]
Trigger Stop: 223890955.328 [s; MET]
UTC: 2008-02-05T07:55:51.751640 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 98.2192547486492 Dec: 62.7686859637972 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.53
Image Trigger?: NO
Rate S/N Ratio: 15.0996688705415 [ if not an image trigger ]
Image S/N Ratio: 8.53
Analysis Position: [ source = BAT ]
RA: 98.2192547486492 Dec: 62.7686859637972 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 98.2610086338524 Dec: 62.7784563195902 [deg; J2000]
{ 06h 33m 02.6s , +62d 46' 42.4" }
+/- 1.50929342618172 [arcmin] (estimated 90% radius based on SNR)
+/- 0.739362038112901 [arcmin] (formal 1-sigma fit error)
SNR: 16.8938023144618
Angular difference between the analysis and refined position is 1.287380 arcmin
Partial Coding Fraction: 0.5234375 [ including projection effects ]
Duration
T90: 106.296000003815 +/- 4.93487059748703
Measured from: -5.49199998378754
to: 100.804000020027 [s; relative to TRIGTIME]
T50: 84.7360000014305 +/- 4.65087088671953
Measured from: 4.96000000834465
to: 89.6960000097752 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.224000006914139
to: 1.22400000691414 [s; relative to TRIGTIME]
Total Fluence
Measured from: -10.0879999995232
to: 105.384000003338 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.408370 1.443025 0.789049 0.104495
0.066264 0.068437 0.059438 0.050288 [error]
Peak 0.049252 0.063070 0.029516 0.010314
0.008045 0.008378 0.007154 0.005717 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 115.472 -10.088 105.384
T90 106.296 -5.492 100.804
T50 84.736 4.960 89.696
Peak 1.000 0.224 1.224
====== 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 -1.959 -0.115 0.112 - - - 1.91e-03 -1.29e-04 1.27e-04 46.110 57
CPL -1.826 -0.402 0.453 58.793 -48.313 -58.793 2.26e-03 -8.50e-04 1.68e-03 45.810 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 -1.950 -0.306 0.283 - - - 9.57e-03 -1.86e-03 1.78e-03 55.660 57
CPL -1.960 -0.297 0.295 9999.360 N/A N/A 9.51e-03 N/A N/A 55.660 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 4.34e-07 6.04e-07 6.21e-07 1.17e-06 2.03e-06 2.83e-06 erg/cm2
90%_error_low -3.88e-08 -3.40e-08 -5.84e-08 -2.13e-07 -1.31e-07 -2.71e-07 erg/cm2
90%_error_hi 3.98e-08 3.40e-08 5.88e-08 2.43e-07 1.33e-07 2.94e-07 erg/cm2
Peak flux PL 6.08e-01 4.69e-01 2.43e-01 1.81e-01 1.40e+00 1.50e+00 ph/cm2/s
90%_error_low -1.36e-01 -7.23e-02 -6.10e-02 -7.53e-02 -2.18e-01 -2.33e-01 ph/cm2/s
90%_error_hi 1.42e-01 7.23e-02 6.14e-02 1.02e-01 2.18e-01 2.33e-01 ph/cm2/s
Fluence CPL 4.27e-07 6.12e-07 6.21e-07 9.22e-07 2.00e-06 2.58e-06 erg/cm2
90%_error_low -4.53e-08 -6.91e-08 -6.01e-08 -4.67e-07 -1.57e-07 -5.02e-07 erg/cm2
90%_error_hi 4.58e-08 4.31e-08 6.00e-08 5.28e-07 1.32e-07 5.64e-07 erg/cm2
Peak flux CPL 6.09e-01 4.68e-01 2.43e-01 1.80e-01 1.40e+00 1.51e+00 ph/cm2/s
90%_error_low -1.38e-01 -7.10e-02 -6.09e-02 -5.16e-02 -1.11e-01 -1.73e-01 ph/cm2/s
90%_error_hi 1.46e-01 1.28e-01 6.20e-02 1.38e-01 2.17e-01 2.25e-01 ph/cm2/s
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