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 Dec 17 16:27:59 EST 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger869494
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Trigger: 00869494 Segment: 000
BAT Trigger Time: 562555664 [s; MET]
Trigger Stop: 562555728 [s; MET]
UTC: 2018-10-30T01:27:22.164360 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 146.922199813726 Dec: 14.6579611316373 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 17.58
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 17.58
Analysis Position: [ source = BAT ]
RA: 146.922199813726 Dec: 14.6579611316373 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 146.916387552657 Dec: 14.657221636123 [deg; J2000]
{ 09h 47m 39.9s , +14d 39' 26.0" }
+/- 1.08526543769756 [arcmin] (estimated 90% radius based on SNR)
+/- 0.402269405279989 [arcmin] (formal 1-sigma fit error)
SNR: 27.0615523221203
Angular difference between the analysis and refined position is 0.340291 arcmin
Partial Coding Fraction: 0.7109375 [ including projection effects ]
Duration
T90: 303.195999979973 +/- 78.5981634979086
Measured from: 18.2439999580383
to: 321.439999938011 [s; relative to TRIGTIME]
T50: 95.191999912262 +/- 12.1475614086886
Measured from: 56
to: 151.191999912262 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 71.3279999494553
to: 72.3279999494553 [s; relative to TRIGTIME]
Total Fluence
Measured from: 3.19200003147125
to: 443.003999948502 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 3.113751 4.162622 2.668422 0.569505
0.153047 0.158696 0.137470 0.116817 [error]
Peak 0.038323 0.027252 0.031925 0.025538
0.008462 0.009022 0.007804 0.006434 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 439.812 3.192 443.004
T90 303.196 18.244 321.440
T50 95.192 56.000 151.192
Peak 1.000 71.328 72.328
====== 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 -1.730 -0.086 0.085 - - - 1.51e-03 -7.48e-05 7.44e-05 62.270 57
CPL -1.337 -0.341 0.370 80.789 -19.037 176.339 2.41e-03 -7.91e-04 1.31e-03 58.370 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 -1.533 -0.503 0.493 - - - 6.72e-03 -1.79e-03 1.73e-03 59.140 57
CPL -1.563 -0.464 -0.196 9999.360 N/A N/A 6.63e-03 N/A N/A 59.160 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 1.05e-06 1.68e-06 2.02e-06 4.77e-06 6.12e-06 9.53e-06 erg/cm2
90%_error_low -8.17e-08 -8.03e-08 -1.35e-07 -6.42e-07 -3.16e-07 -7.59e-07 erg/cm2
90%_error_hi 8.36e-08 8.02e-08 1.35e-07 7.06e-07 3.18e-07 8.08e-07 erg/cm2
Peak flux PL 2.86e-01 2.82e-01 1.95e-01 2.12e-01 8.47e-01 9.75e-01 ph/cm2/s
90%_error_low -1.23e-01 -7.83e-02 -6.75e-02 -1.21e-01 -2.17e-01 -2.46e-01 ph/cm2/s
90%_error_hi 1.36e-01 7.46e-02 6.41e-02 1.92e-01 2.17e-01 2.48e-01 ph/cm2/s
Fluence CPL 9.88e-07 1.74e-06 2.05e-06 2.62e-06 5.92e-06 7.40e-06 erg/cm2
90%_error_low -9.72e-08 -9.84e-08 -1.43e-07 -9.96e-07 -3.63e-07 -1.06e-06 erg/cm2
90%_error_hi 9.87e-08 1.00e-07 1.44e-07 1.76e-06 3.64e-07 1.77e-06 erg/cm2
Peak flux CPL 2.86e-01 2.81e-01 1.92e-01 2.38e-01 8.60e-01 9.70e-01 ph/cm2/s
90%_error_low -1.24e-01 -7.89e-02 N/A N/A -2.28e-01 -2.48e-01 ph/cm2/s
90%_error_hi 1.36e-01 7.76e-02 N/A N/A 2.06e-01 2.47e-01 ph/cm2/s
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