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: Thu Apr 14 18:20:30 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger680436
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Trigger: 00680436 Segment: 000
BAT Trigger Time: 480582019.648 [s; MET]
Trigger Stop: 480582020.16 [s; MET]
UTC: 2016-03-25T07:00:03.619340 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 15.5965562068455 Dec: -72.7063681344509 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.49
Image Trigger?: NO
Rate S/N Ratio: 25.2784493195291 [ if not an image trigger ]
Image S/N Ratio: 10.49
Analysis Position: [ source = BAT ]
RA: 15.5965562068455 Dec: -72.7063681344509 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 15.6955921764478 Dec: -72.7017317557842 [deg; J2000]
{ 01h 02m 46.9s , -72d 42' 06.2" }
+/- 0.544890620605329 [arcmin] (estimated 90% radius based on SNR)
+/- 0.155575275615021 [arcmin] (formal 1-sigma fit error)
SNR: 72.4134657961675
Angular difference between the analysis and refined position is 1.788415 arcmin
Partial Coding Fraction: 0.9609375 [ including projection effects ]
Duration
T90: 61.7239999771118 +/- 12.0532560498552
Measured from: -40.9240000247955
to: 20.7999999523163 [s; relative to TRIGTIME]
T50: 26.5359998941422 +/- 4.86102046732467
Measured from: -35.5759999752045
to: -9.04000008106232 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -33.4679999947548
to: -32.4679999947548 [s; relative to TRIGTIME]
Total Fluence
Measured from: -51.7480000257492
to: 59.3799999952316 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.414276 3.780245 3.385529 0.939801
0.061473 0.065641 0.059625 0.051459 [error]
Peak 0.134600 0.234638 0.227754 0.074036
0.007672 0.009037 0.008956 0.006875 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 111.128 -51.748 59.380
T90 61.724 -40.924 20.800
T50 26.536 -35.576 -9.040
Peak 1.000 -33.468 -32.468
====== 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 -1.270 -0.042 0.042 - - - 6.42e-03 -1.40e-04 1.40e-04 37.260 57
CPL -1.119 -0.073 0.170 340.686 -148.388 -340.686 7.46e-03 -8.44e-04 1.33e-03 34.810 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 -1.109 -0.075 0.075 - - - 4.52e-02 -1.89e-03 1.89e-03 44.020 57
CPL -0.917 -0.224 0.293 316.808 -316.808 -316.808 5.53e-02 -1.16e-02 1.92e-02 42.610 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 7.35e-07 1.55e-06 2.58e-06 9.71e-06 7.10e-06 1.46e-05 erg/cm2
90%_error_low -3.46e-08 -4.25e-08 -6.36e-08 -5.63e-07 -1.61e-07 -5.89e-07 erg/cm2
90%_error_hi 3.53e-08 4.24e-08 6.35e-08 5.88e-07 1.61e-07 6.09e-07 erg/cm2
Peak flux PL 1.28e+00 1.63e+00 1.51e+00 2.46e+00 5.25e+00 6.88e+00 ph/cm2/s
90%_error_low -1.06e-01 -8.23e-02 -7.23e-02 -2.47e-01 -2.25e-01 -3.13e-01 ph/cm2/s
90%_error_hi 1.09e-01 8.18e-02 7.20e-02 2.64e-01 2.25e-01 3.16e-01 ph/cm2/s
Fluence CPL 7.04e-07 1.56e-06 2.62e-06 8.01e-06 7.04e-06 1.29e-05 erg/cm2
90%_error_low -4.66e-08 -4.40e-08 -7.51e-08 -1.47e-06 -1.75e-07 -1.47e-06 erg/cm2
90%_error_hi 4.76e-08 4.41e-08 7.56e-08 1.82e-06 1.74e-07 1.83e-06 erg/cm2
Peak flux CPL 1.22e+00 1.65e+00 1.54e+00 2.00e+00 5.21e+00 6.41e+00 ph/cm2/s
90%_error_low -1.34e-01 -8.74e-02 -8.61e-02 -5.04e-01 -2.33e-01 -5.61e-01 ph/cm2/s
90%_error_hi 1.31e-01 8.82e-02 8.71e-02 5.40e-01 2.33e-01 6.25e-01 ph/cm2/s
======================================================================