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 4 17:34:24 EST 2017
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger727288
======================================================================
Trigger: 00727288 Segment: 000
BAT Trigger Time: 503725673.472 [s; MET]
Trigger Stop: 503725674.496 [s; MET]
UTC: 2016-12-18T03:47:36.148280 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 245.25705184263 Dec: -4.11356983789782 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 25.38
Image Trigger?: NO
Rate S/N Ratio: 238.077718403046 [ if not an image trigger ]
Image S/N Ratio: 25.38
Analysis Position: [ source = BAT ]
RA: 245.25705184263 Dec: -4.11356983789782 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 245.250346763488 Dec: -4.11279296467415 [deg; J2000]
{ 16h 21m 00.1s , -04d 06' 46.1" }
+/- 0.612697703526967 [arcmin] (estimated 90% radius based on SNR)
+/- 0.132061689368432 [arcmin] (formal 1-sigma fit error)
SNR: 61.2424145532903
Angular difference between the analysis and refined position is 0.403967 arcmin
Partial Coding Fraction: 0.609375 [ including projection effects ]
Duration
T90: 7.19999992847443 +/- 0.545893781338456
Measured from: -0.328000009059906
to: 6.87199991941452 [s; relative to TRIGTIME]
T50: 2.97999995946884 +/- 0.0823650748911806
Measured from: 0.671999990940094
to: 3.65199995040894 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.26800000667572
to: 1.26800000667572 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.39600002765656
to: 14.5 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.966873 3.665154 3.529788 0.906156
0.043518 0.050866 0.048860 0.032758 [error]
Peak 0.330540 0.789670 0.933385 0.268048
0.014791 0.020354 0.021984 0.013607 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 15.896 -1.396 14.500
T90 7.200 -0.328 6.872
T50 2.980 0.672 3.652
Peak 1.000 0.268 1.268
====== 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: CPL)
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 -1.195 -0.033 0.033 - - - 4.41e-02 -8.31e-04 8.30e-04 89.320 57
CPL -0.639 -0.145 0.150 148.019 -18.820 30.418 7.53e-02 -9.59e-03 1.13e-02 43.010 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 -0.881 -0.046 0.046 - - - 1.58e-01 -4.57e-03 4.56e-03 101.110 57
CPL -0.060 -0.213 0.223 142.642 -18.011 28.539 3.53e-01 -6.44e-02 8.25e-02 51.830 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 6.73e-07 1.49e-06 2.60e-06 1.06e-05 7.12e-06 1.54e-05 erg/cm2
90%_error_low -2.63e-08 -3.51e-08 -5.19e-08 -4.78e-07 -1.35e-07 -4.99e-07 erg/cm2
90%_error_hi 2.67e-08 3.50e-08 5.19e-08 4.93e-07 1.35e-07 5.11e-07 erg/cm2
Peak flux PL 1.41e-03 2.15e-02 1.85e-01 2.15e+01 8.17e-01 2.11e+01 ph/cm2/s
90%_error_low N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_hi N/A N/A N/A N/A N/A N/A ph/cm2/s
Fluence CPL 5.71e-07 1.52e-06 2.77e-06 5.87e-06 6.98e-06 1.07e-05 erg/cm2
90%_error_low -3.44e-08 -3.76e-08 -6.72e-08 -7.57e-07 -1.41e-07 -7.52e-07 erg/cm2
90%_error_hi 3.51e-08 3.76e-08 6.75e-08 8.99e-07 1.41e-07 8.88e-07 erg/cm2
Peak flux CPL N/A N/A N/A 3.70e-01 N/A 3.71e-01 ph/cm2/s
90%_error_low N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_hi N/A N/A N/A N/A N/A N/A ph/cm2/s
======================================================================
Special notes of this burst