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: Sat Oct 4 23:32:32 EDT 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger596426
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Trigger: 00596426 Segment: 000
BAT Trigger Time: 419573222.976 [s; MET]
Trigger Stop: 419573224 [s; MET]
UTC: 2014-04-19T04:06:51.071220 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 126.99951654378 Dec: 46.2209756335083 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.96
Image Trigger?: NO
Rate S/N Ratio: 40.9756024970958 [ if not an image trigger ]
Image S/N Ratio: 11.96
Analysis Position: [ source = BAT ]
RA: 126.99951654378 Dec: 46.2209756335083 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 127.00158970807 Dec: 46.2340088443795 [deg; J2000]
{ 08h 28m 00.4s , +46d 14' 02.4" }
+/- 0.688422882359341 [arcmin] (estimated 90% radius based on SNR)
+/- 0.177832474241562 [arcmin] (formal 1-sigma fit error)
SNR: 51.8505860593101
Angular difference between the analysis and refined position is 0.786713 arcmin
Partial Coding Fraction: 0.3320312 [ including projection effects ]
Duration
T90: 80.0759999155998 +/- 3.77504441677767
Measured from: -2.44400000572205
to: 77.6319999098778 [s; relative to TRIGTIME]
T50: 38.8039999604225 +/- 0.849894101154483
Measured from: 8.56000000238419
to: 47.3639999628067 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 51.4239999651909
to: 52.4239999651909 [s; relative to TRIGTIME]
Total Fluence
Measured from: -8.68800002336502
to: 125.347999989986 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 4.506116 7.404678 7.443074 2.618822
0.090397 0.100439 0.096987 0.083572 [error]
Peak 0.110133 0.209249 0.204925 0.063059
0.007232 0.008562 0.008655 0.006535 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 134.036 -8.688 125.348
T90 80.076 -2.444 77.632
T50 38.804 8.560 47.364
Peak 1.000 51.424 52.424
====== 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 -1.155 -0.034 0.034 - - - 1.14e-02 -2.10e-04 2.09e-04 45.330 57
CPL -1.099 -0.067 0.108 994.290 -994.290 -994.290 1.20e-02 -7.61e-04 1.20e-03 45.410 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 -1.030 -0.079 0.080 - - - 3.90e-02 -1.75e-03 1.75e-03 52.220 57
CPL -0.754 -0.296 0.328 255.400 -108.375 -255.400 5.21e-02 -1.06e-02 2.05e-02 49.850 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 1.41e-06 3.21e-06 5.78e-06 2.45e-05 1.57e-05 3.49e-05 erg/cm2
90%_error_low -5.77e-08 -7.69e-08 -1.09e-07 -1.12e-06 -2.83e-07 -1.15e-06 erg/cm2
90%_error_hi 5.88e-08 7.68e-08 1.09e-07 1.16e-06 2.84e-07 1.18e-06 erg/cm2
Peak flux PL 1.03e+00 1.37e+00 1.34e+00 2.35e+00 4.50e+00 6.08e+00 ph/cm2/s
90%_error_low -9.14e-02 -7.46e-02 -6.80e-02 -2.50e-01 -2.05e-01 -3.05e-01 ph/cm2/s
90%_error_hi 9.44e-02 7.41e-02 6.76e-02 2.69e-01 2.05e-01 3.11e-01 ph/cm2/s
Fluence CPL 1.42e-06 3.22e-06 5.79e-06 2.40e-05 1.57e-05 3.44e-05 erg/cm2
90%_error_low -1.07e-07 -1.02e-07 -1.38e-07 -3.65e-06 -2.29e-07 -3.70e-06 erg/cm2
90%_error_hi 3.85e-08 9.94e-08 1.10e-07 7.27e-07 3.41e-07 1.47e-06 erg/cm2
Peak flux CPL 9.58e-01 1.39e+00 1.38e+00 1.76e+00 4.45e+00 5.49e+00 ph/cm2/s
90%_error_low -1.16e-01 -7.98e-02 -8.26e-02 -4.69e-01 -2.12e-01 -5.18e-01 ph/cm2/s
90%_error_hi 1.19e-01 8.06e-02 8.37e-02 4.15e-01 2.12e-01 5.79e-01 ph/cm2/s
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