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 03:34:57 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger306793
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Trigger: 00306793 Segment: 000
BAT Trigger Time: 227639112 [s; MET]
Trigger Stop: 227639176 [s; MET]
UTC: 2008-03-19T17:05:09.345180 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 99.4803719736166 Dec: 23.9335194811168 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.22
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.22
Analysis Position: [ source = BAT ]
RA: 99.4803719736166 Dec: 23.9335194811168 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 99.4792769236431 Dec: 23.9837185697156 [deg; J2000]
{ 06h 37m 55.0s , +23d 59' 01.4" }
+/- 2.54261148763677 [arcmin] (estimated 90% radius based on SNR)
+/- 1.15092045085236 [arcmin] (formal 1-sigma fit error)
SNR: 8.01949358880981
Angular difference between the analysis and refined position is 3.012544 arcmin
Partial Coding Fraction: 0.59375 [ including projection effects ]
Duration
T90: 26.9400000274181 +/- 4.47841399106537
Measured from: 7.23199999332428
to: 34.1720000207424 [s; relative to TRIGTIME]
T50: 15.6879999935627 +/- 5.20474861129683
Measured from: 13.080000013113
to: 28.7680000066757 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 33.5699999928474
to: 34.5699999928474 [s; relative to TRIGTIME]
Total Fluence
Measured from: 4.9839999973774
to: 34.4760000109673 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.178881 0.258750 0.084364 0.049669
0.034188 0.036473 0.034847 0.037458 [error]
Peak 0.019970 0.017432 0.007569 0.004194
0.006370 0.006802 0.006449 0.007061 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 29.492 4.984 34.476
T90 26.940 7.232 34.172
T50 15.688 13.080 28.768
Peak 1.000 33.570 34.570
====== 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 -1.791 -0.352 0.331 - - - 1.19e-03 -2.79e-04 2.72e-04 57.720 57
CPL 0.490 -2.310 4.935 39.067 -8.208 2896.193 3.26e-02 -3.26e-02 5.03e+01 55.010 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
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 -1.721 -0.973 0.830 - - - 3.06e-03 -1.65e-03 1.47e-03 41.230 57
CPL -1.737 -2.606 3.967 9999.000 N/A N/A 3.03e-03 N/A N/A 41.230 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 5.89e-08 9.07e-08 1.05e-07 2.32e-07 3.23e-07 4.87e-07 erg/cm2
90%_error_low -1.53e-08 -1.73e-08 -3.20e-08 -1.15e-07 -7.51e-08 -1.56e-07 erg/cm2
90%_error_hi 1.59e-08 1.73e-08 3.35e-08 1.76e-07 7.88e-08 2.06e-07 erg/cm2
Peak flux PL 1.56e-01 1.38e-01 8.36e-02 7.67e-02 4.10e-01 4.54e-01 ph/cm2/s
90%_error_low -9.33e-02 -5.73e-02 -5.39e-02 -7.67e-02 -1.70e-01 -1.94e-01 ph/cm2/s
90%_error_hi 1.05e-01 5.71e-02 5.60e-02 1.59e-01 1.70e-01 2.02e-01 ph/cm2/s
Fluence CPL 5.32e-08 1.17e-07 6.10e-08 3.94e-09 2.35e-07 2.35e-07 erg/cm2
90%_error_low -1.83e-08 -3.14e-08 -4.31e-08 N/A -6.02e-08 -6.10e-08 erg/cm2
90%_error_hi 1.79e-08 2.93e-08 6.22e-08 N/A 1.13e-07 2.55e-07 erg/cm2
Peak flux CPL 1.60e-01 1.37e-01 8.23e-02 7.75e-02 4.11e-01 4.53e-01 ph/cm2/s
90%_error_low -1.01e-01 -5.62e-02 -5.27e-02 -7.75e-02 -1.71e-01 -2.09e-01 ph/cm2/s
90%_error_hi 1.02e-01 7.24e-02 5.79e-02 1.57e-01 1.69e-01 1.88e-01 ph/cm2/s
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