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.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Wed Jun 1 15:56:40 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger682522
======================================================================
Trigger: 00682522 Segment: 000
BAT Trigger Time: 482127850.816 [s; MET]
Trigger Stop: 482127851.84 [s; MET]
UTC: 2016-04-12T04:23:54.702760 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 33.1066844471939 Dec: -67.6453927684835 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.8
Image Trigger?: NO
Rate S/N Ratio: 11.5758369027902 [ if not an image trigger ]
Image S/N Ratio: 6.8
Analysis Position: [ source = BAT ]
RA: 33.1066844471939 Dec: -67.6453927684835 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 33.0739519548768 Dec: -67.6399829147724 [deg; J2000]
{ 02h 12m 17.7s , -67d 38' 23.9" }
+/- 0.878001438146648 [arcmin] (estimated 90% radius based on SNR)
+/- 0.253779864034574 [arcmin] (formal 1-sigma fit error)
SNR: 36.6302163607862
Angular difference between the analysis and refined position is 0.814520 arcmin
Partial Coding Fraction: 0.7578125 [ including projection effects ]
Duration
T90: 32.1799999475479 +/- 3.93007892771808
Measured from: -1.38400000333786
to: 30.7959999442101 [s; relative to TRIGTIME]
T50: 12.4559999704361 +/- 1.37689506130348
Measured from: 5.89200001955032
to: 18.3479999899864 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 14.4000000357628
to: 15.4000000357628 [s; relative to TRIGTIME]
Total Fluence
Measured from: -4.30799996852875
to: 40.1759999990463 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.177317 1.363932 0.715318 0.191249
0.043307 0.045397 0.039402 0.035022 [error]
Peak 0.068441 0.069519 0.046938 0.007019
0.007269 0.007640 0.006620 0.005653 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 44.484 -4.308 40.176
T90 32.180 -1.384 30.796
T50 12.456 5.892 18.348
Peak 1.000 14.400 15.400
====== 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 -1.879 -0.083 0.083 - - - 4.74e-03 -2.24e-04 2.23e-04 58.400 57
CPL -1.724 -0.320 0.350 80.278 -28.998 -80.278 5.76e-03 -1.09e-03 3.09e-03 57.740 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 -1.887 -0.220 0.207 - - - 1.12e-02 -1.61e-03 1.57e-03 72.760 57
CPL -1.274 -0.801 0.984 51.606 N/A N/A 2.48e-02 N/A N/A 71.170 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 3.85e-07 5.62e-07 6.11e-07 1.24e-06 1.94e-06 2.80e-06 erg/cm2
90%_error_low -2.70e-08 -2.40e-08 -4.00e-08 -1.64e-07 -9.12e-08 -2.00e-07 erg/cm2
90%_error_hi 2.76e-08 2.40e-08 4.02e-08 1.81e-07 9.17e-08 2.12e-07 erg/cm2
Peak flux PL 6.68e-01 5.35e-01 2.89e-01 2.29e-01 1.60e+00 1.72e+00 ph/cm2/s
90%_error_low -1.11e-01 -6.21e-02 -5.41e-02 -7.30e-02 -1.85e-01 -2.03e-01 ph/cm2/s
90%_error_hi 1.15e-01 6.21e-02 5.46e-02 9.10e-02 1.85e-01 2.04e-01 ph/cm2/s
Fluence CPL 3.77e-07 5.71e-07 6.10e-07 9.40e-07 1.91e-06 2.50e-06 erg/cm2
90%_error_low -3.16e-08 -2.94e-08 -4.13e-08 -4.01e-07 -1.15e-07 -4.22e-07 erg/cm2
90%_error_hi 3.20e-08 3.05e-08 4.11e-08 3.49e-07 1.12e-07 3.85e-07 erg/cm2
Peak flux CPL 6.25e-01 5.75e-01 2.92e-01 1.06e-01 1.56e+00 1.60e+00 ph/cm2/s
90%_error_low -1.29e-01 -8.11e-02 -6.01e-02 -1.06e-01 -1.90e-01 -2.09e-01 ph/cm2/s
90%_error_hi 1.29e-01 8.40e-02 5.98e-02 1.52e-01 1.90e-01 2.54e-01 ph/cm2/s
======================================================================
Special notes of this burst