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 14:22:03 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger678929
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Trigger: 00678929 Segment: 000
BAT Trigger Time: 479529451.776 [s; MET]
Trigger Stop: 479529478.656 [s; MET]
UTC: 2016-03-13T02:37:15.804900 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 183.787873774764 Dec: 57.2928358615757 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.71
Image Trigger?: NO
Rate S/N Ratio: 9.89949493661167 [ if not an image trigger ]
Image S/N Ratio: 8.71
Analysis Position: [ source = BAT ]
RA: 183.787873774764 Dec: 57.2928358615757 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 183.819620681679 Dec: 57.2799178763181 [deg; J2000]
{ 12h 15m 16.7s , +57d 16' 47.7" }
+/- 2.00346933649191 [arcmin] (estimated 90% radius based on SNR)
+/- 0.93537714587284 [arcmin] (formal 1-sigma fit error)
SNR: 11.2719807218026
Angular difference between the analysis and refined position is 1.288601 arcmin
Partial Coding Fraction: 0.8046875 [ including projection effects ]
Duration
T90: 41.5359999537468 +/- 6.18321240663874
Measured from: -1.45200002193451
to: 40.0839999318123 [s; relative to TRIGTIME]
T50: 22.3679999709129 +/- 5.97979697204795
Measured from: 5.83199995756149
to: 28.1999999284744 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 24.7919999957085
to: 25.7919999957085 [s; relative to TRIGTIME]
Total Fluence
Measured from: -5.60400003194809
to: 44.6559999585152 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.268840 0.269509 0.329309 0.083141
0.038766 0.040436 0.034956 0.029407 [error]
Peak 0.013690 0.019137 0.010443 0.009083
0.005538 0.005901 0.004941 0.004190 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 50.260 -5.604 44.656
T90 41.536 -1.452 40.084
T50 22.368 5.832 28.200
Peak 1.000 24.792 25.792
====== 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: 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 -1.304 -0.234 0.235 - - - 1.20e-03 -1.52e-04 1.51e-04 75.620 57
CPL -1.305 -0.230 0.637 9999.320 -9999.320 -9999.320 1.21e-03 -1.21e-03 1.07e-03 75.630 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 -1.690 -0.798 0.703 - - - 2.68e-03 -1.22e-03 1.11e-03 69.010 57
CPL -1.694 -1.108 1.043 9999.140 -9999.130 -9999.140 2.67e-03 N/A N/A 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 6.43e-08 1.33e-07 2.16e-07 7.85e-07 5.97e-07 1.20e-06 erg/cm2
90%_error_low -1.49e-08 -1.89e-08 -3.47e-08 -2.50e-07 -8.47e-08 -2.77e-07 erg/cm2
90%_error_hi 1.59e-08 1.85e-08 3.41e-08 3.23e-07 8.55e-08 3.39e-07 erg/cm2
Peak flux PL 1.33e-01 1.19e-01 7.39e-02 6.97e-02 3.55e-01 3.95e-01 ph/cm2/s
90%_error_low -7.20e-02 -4.48e-02 -4.13e-02 -6.97e-02 -1.32e-01 -1.50e-01 ph/cm2/s
90%_error_hi 7.99e-02 4.44e-02 4.14e-02 1.12e-01 1.32e-01 1.54e-01 ph/cm2/s
Fluence CPL 6.54e-08 1.32e-07 2.14e-07 8.44e-07 6.00e-07 1.15e-06 erg/cm2
90%_error_low -1.92e-08 N/A -3.87e-08 -5.15e-07 -1.03e-07 -4.23e-07 erg/cm2
90%_error_hi 1.70e-08 N/A 4.32e-08 9.30e-08 9.77e-08 3.69e-07 erg/cm2
Peak flux CPL 1.35e-01 1.19e-01 7.31e-02 7.59e-02 3.56e-01 3.94e-01 ph/cm2/s
90%_error_low -8.12e-02 -4.36e-02 -4.05e-02 N/A -1.32e-01 -1.63e-01 ph/cm2/s
90%_error_hi 4.14e-02 4.49e-02 4.37e-02 N/A 1.31e-01 1.52e-01 ph/cm2/s
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