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 Mar 28 14:19:19 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger679120
======================================================================
Trigger: 00679120 Segment: 000
BAT Trigger Time: 479647987.776 [s; MET]
Trigger Stop: 479647989.824 [s; MET]
UTC: 2016-03-14T11:32:51.798460 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 112.780775633225 Dec: 17.00092392601 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.54
Image Trigger?: NO
Rate S/N Ratio: 14.1774468787578 [ if not an image trigger ]
Image S/N Ratio: 8.54
Analysis Position: [ source = BAT ]
RA: 112.780775633225 Dec: 17.00092392601 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 112.766207779711 Dec: 17.0234503011397 [deg; J2000]
{ 07h 31m 03.9s , +17d 01' 24.4" }
+/- 1.72851934259036 [arcmin] (estimated 90% radius based on SNR)
+/- 0.817643453877885 [arcmin] (formal 1-sigma fit error)
SNR: 13.9182215729122
Angular difference between the analysis and refined position is 1.589144 arcmin
Partial Coding Fraction: 0.75 [ including projection effects ]
Duration
T90: 8.73199993371964 +/- 1.51638125570509
Measured from: 0.255999982357025
to: 8.98799991607666 [s; relative to TRIGTIME]
T50: 3.11199992895126 +/- 1.42999997780873
Measured from: 1.37999999523163
to: 4.49199992418289 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.12000000476837
to: 2.12000000476837 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0360000133514404
to: 9.31199997663498 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.140798 0.166740 0.116350 0.052304
0.018960 0.019376 0.016588 0.013450 [error]
Peak 0.036316 0.040673 0.027093 0.016098
0.006666 0.006594 0.005718 0.004544 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 9.348 -0.036 9.312
T90 8.732 0.256 8.988
T50 3.112 1.380 4.492
Peak 1.000 1.120 2.120
====== 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 -1.528 -0.223 0.220 - - - 3.12e-03 -4.03e-04 3.98e-04 62.830 57
CPL -1.530 -0.220 0.225 9999.360 -9999.360 -9999.360 3.12e-03 -2.25e-03 4.36e-03 62.840 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 -1.505 -0.325 0.328 - - - 7.27e-03 -1.29e-03 1.26e-03 68.970 57
CPL -1.530 -0.302 0.452 9999.360 -9999.360 -9999.360 7.18e-03 -1.19e-03 -7.18e-03 69.010 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 3.82e-08 6.91e-08 9.58e-08 2.77e-07 2.75e-07 4.80e-07 erg/cm2
90%_error_low -7.67e-09 -8.71e-09 -1.64e-08 -8.89e-08 -3.89e-08 -1.04e-07 erg/cm2
90%_error_hi 7.99e-09 8.65e-09 1.64e-08 1.15e-07 3.95e-08 1.25e-07 erg/cm2
Peak flux PL 3.01e-01 3.02e-01 2.12e-01 2.38e-01 9.08e-01 1.05e+00 ph/cm2/s
90%_error_low -8.85e-02 -5.46e-02 -4.92e-02 -9.78e-02 -1.54e-01 -1.80e-01 ph/cm2/s
90%_error_hi 9.35e-02 5.32e-02 4.81e-02 1.37e-01 1.54e-01 1.82e-01 ph/cm2/s
Fluence CPL 3.82e-08 6.91e-08 9.53e-08 2.75e-07 2.78e-07 4.83e-07 erg/cm2
90%_error_low N/A N/A -2.18e-08 N/A N/A -2.02e-07 erg/cm2
90%_error_hi N/A N/A 2.28e-08 N/A N/A 5.50e-08 erg/cm2
Peak flux CPL 3.01e-01 3.00e-01 2.10e-01 2.35e-01 9.18e-01 1.04e+00 ph/cm2/s
90%_error_low -8.88e-02 -5.55e-02 -4.83e-02 N/A -1.59e-01 -1.72e-01 ph/cm2/s
90%_error_hi 9.34e-02 5.73e-02 5.28e-02 N/A 1.46e-01 1.90e-01 ph/cm2/s
======================================================================
Special notes of this burst