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: Sun Dec 14 17:25:18 EST 2014
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger619182
======================================================================
Trigger: 00619182 Segment: 000
BAT Trigger Time: 438234656 [s; MET]
Trigger Stop: 438234944 [s; MET]
UTC: 2014-11-21T03:50:43.185060 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 122.667985354439 Dec: 22.2254978756992 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.91
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 11.91
Analysis Position: [ source = BAT ]
RA: 122.667985354439 Dec: 22.2254978756992 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 122.64715029437 Dec: 22.2107022872573 [deg; J2000]
{ 08h 10m 35.3s , +22d 12' 38.5" }
+/- 2.52113351994949 [arcmin] (estimated 90% radius based on SNR)
+/- 1.22893388938581 [arcmin] (formal 1-sigma fit error)
SNR: 8.1172706681212
Angular difference between the analysis and refined position is 1.458555 arcmin
Partial Coding Fraction: 0.328125 [ including projection effects ]
Duration
T90: 481.003999948502 +/- 38.0626023493275
Measured from: 163.77999997139
to: 644.783999919891 [s; relative to TRIGTIME]
T50: 146.883999943733 +/- 210.39239915443
Measured from: 216.240000009537
to: 363.12399995327 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 230.143999993801
to: 231.143999993801 [s; relative to TRIGTIME]
Total Fluence
Measured from: 110.32800000906
to: 663.040000021458 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.321214 3.081351 1.591725 0.423847
0.188809 0.195624 0.170573 0.154670 [error]
Peak 0.038886 0.035252 0.027055 0.005215
0.009933 0.010609 0.009660 0.008729 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 552.712 110.328 663.040
T90 481.004 163.780 644.784
T50 146.884 216.240 363.124
Peak 1.000 230.144 231.144
====== 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 -1.750 -0.143 0.140 - - - 8.47e-04 -7.40e-05 7.30e-05 64.050 57
CPL -1.429 -0.476 0.636 79.040 -30.999 -79.040 1.28e-03 -4.87e-04 1.59e-03 63.080 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 -1.846 -0.609 0.501 - - - 6.28e-03 -2.36e-03 2.19e-03 62.790 57
CPL -1.040 -1.156 3.605 56.577 N/A N/A 1.69e-02 N/A N/A 62.390 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 7.56e-07 1.19e-06 1.42e-06 3.28e-06 4.32e-06 6.65e-06 erg/cm2
90%_error_low -9.01e-08 -9.24e-08 -1.67e-07 -7.32e-07 -3.89e-07 -9.02e-07 erg/cm2
90%_error_hi 9.24e-08 9.24e-08 1.68e-07 8.65e-07 3.94e-07 1.01e-06 erg/cm2
Peak flux PL 3.61e-01 2.96e-01 1.65e-01 1.35e-01 8.81e-01 9.56e-01 ph/cm2/s
90%_error_low -1.41e-01 -8.51e-02 -7.70e-02 -9.16e-02 -2.53e-01 -2.82e-01 ph/cm2/s
90%_error_hi 1.53e-01 8.51e-02 7.79e-02 1.55e-01 2.53e-01 2.87e-01 ph/cm2/s
Fluence CPL 7.30e-07 1.24e-06 1.42e-06 1.86e-06 4.17e-06 5.25e-06 erg/cm2
90%_error_low -1.01e-07 -1.21e-07 -1.80e-07 -1.12e-06 -4.66e-07 -1.23e-06 erg/cm2
90%_error_hi 1.02e-07 1.26e-07 1.77e-07 1.65e-06 4.66e-07 1.80e-06 erg/cm2
Peak flux CPL 3.21e-01 3.24e-01 1.75e-01 6.03e-02 8.62e-01 8.80e-01 ph/cm2/s
90%_error_low N/A -1.06e-01 -8.55e-02 -6.03e-02 -2.63e-01 -2.79e-01 ph/cm2/s
90%_error_hi N/A 1.16e-01 9.44e-02 1.17e-01 2.59e-01 3.36e-01 ph/cm2/s
======================================================================
Special notes of this burst