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: Sun Dec 13 15:52:37 EST 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger664078
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Trigger: 00664078 Segment: 000
BAT Trigger Time: 469508805.44 [s; MET]
Trigger Stop: 469508805.952 [s; MET]
UTC: 2015-11-18T03:06:30.010020 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 57.1581445545425 Dec: 65.8686019549024 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.82
Image Trigger?: NO
Rate S/N Ratio: 11.916375287813 [ if not an image trigger ]
Image S/N Ratio: 7.82
Analysis Position: [ source = BAT ]
RA: 57.1581445545425 Dec: 65.8686019549024 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 57.1709843798993 Dec: 65.8888600983408 [deg; J2000]
{ 03h 48m 41.0s , +65d 53' 19.9" }
+/- 1.41353296197743 [arcmin] (estimated 90% radius based on SNR)
+/- 0.584449960780996 [arcmin] (formal 1-sigma fit error)
SNR: 18.5522081488074
Angular difference between the analysis and refined position is 1.255601 arcmin
Partial Coding Fraction: 0.984375 [ including projection effects ]
Duration
T90: 23.5680000185966 +/- 10.6794936132401
Measured from: 0.319999992847443
to: 23.8880000114441 [s; relative to TRIGTIME]
T50: 5.60000002384186 +/- 2.98450397535287
Measured from: 4.11199998855591
to: 9.71200001239777 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 6.69200003147125
to: 7.69200003147125 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.015999972820282
to: 30.8159999847412 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.245370 0.352183 0.209007 0.023798
0.029954 0.031131 0.026878 0.023260 [error]
Peak 0.043388 0.069401 0.034997 0.005486
0.005957 0.006511 0.005582 0.004549 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 30.800 0.016 30.816
T90 23.568 0.320 23.888
T50 5.600 4.112 9.712
Peak 1.000 6.692 7.692
====== 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 -1.707 -0.194 0.188 - - - 1.66e-03 -2.02e-04 1.99e-04 49.680 57
CPL -1.280 -0.392 0.886 73.388 -20.247 -73.388 2.89e-03 -1.56e-03 6.29e-03 48.710 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 -1.671 -0.200 0.193 - - - 9.69e-03 -1.26e-03 1.24e-03 65.030 57
CPL -0.756 -0.846 1.099 59.596 -14.544 149.580 3.16e-02 -3.16e-02 1.03e-01 61.590 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 7.91e-08 1.28e-07 1.57e-07 3.79e-07 4.72e-07 7.43e-07 erg/cm2
90%_error_low -1.26e-08 -1.37e-08 -2.57e-08 -1.13e-07 -6.01e-08 -1.40e-07 erg/cm2
90%_error_hi 1.29e-08 1.37e-08 2.59e-08 1.41e-07 6.12e-08 1.63e-07 erg/cm2
Peak flux PL 4.70e-01 4.28e-01 2.68e-01 2.58e-01 1.27e+00 1.42e+00 ph/cm2/s
90%_error_low -8.01e-02 -4.97e-02 -4.47e-02 -7.47e-02 -1.47e-01 -1.69e-01 ph/cm2/s
90%_error_hi 8.31e-02 4.97e-02 4.48e-02 9.10e-02 1.47e-01 1.70e-01 ph/cm2/s
Fluence CPL 7.60e-08 1.35e-07 1.56e-07 1.78e-07 4.49e-07 5.45e-07 erg/cm2
90%_error_low -1.39e-08 -1.80e-08 -2.90e-08 -1.26e-07 -7.06e-08 -1.48e-07 erg/cm2
90%_error_hi 1.40e-08 1.91e-08 2.77e-08 2.38e-07 7.18e-08 2.61e-07 erg/cm2
Peak flux CPL 4.26e-01 4.76e-01 2.73e-01 8.69e-02 1.24e+00 1.26e+00 ph/cm2/s
90%_error_low -9.09e-02 -6.73e-02 -5.41e-02 -5.95e-02 -1.51e-01 -1.65e-01 ph/cm2/s
90%_error_hi 9.29e-02 7.15e-02 5.13e-02 1.50e-01 1.51e-01 1.92e-01 ph/cm2/s
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