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: Sat Mar 19 20:54:19 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger668543
======================================================================
Trigger: 00668543 Segment: 000
BAT Trigger Time: 472964728 [s; MET]
Trigger Stop: 472964728.256 [s; MET]
UTC: 2015-12-28T03:05:12.384680 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 214.003951052387 Dec: -17.6890004436844 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.53
Image Trigger?: NO
Rate S/N Ratio: 36.8510515453766 [ if not an image trigger ]
Image S/N Ratio: 6.53
Analysis Position: [ source = BAT ]
RA: 214.003951052387 Dec: -17.6890004436844 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 214.019846236906 Dec: -17.6664070977249 [deg; J2000]
{ 14h 16m 04.8s , -17d 39' 59.1" }
+/- 1.7825050825542 [arcmin] (estimated 90% radius based on SNR)
+/- 0.670078010584032 [arcmin] (formal 1-sigma fit error)
SNR: 13.3199619579118
Angular difference between the analysis and refined position is 1.631976 arcmin
Partial Coding Fraction: 1 [ including projection effects ]
Duration
T90: 0.275999963283539 +/- 0.039999997615816
Measured from: -0.0279999971389771
to: 0.247999966144562 [s; relative to TRIGTIME]
T50: 0.167999982833862 +/- 0.0432666533938203
Measured from: 0.0199999809265137
to: 0.187999963760376 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.378000020980835
to: 0.621999979019165 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0360000133514404
to: 0.276000022888184 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.012773 0.042010 0.045040 0.009667
0.003802 0.004469 0.004718 0.004119 [error]
Peak 0.016989 0.041701 0.041932 0.013461
0.006355 0.006844 0.006473 0.005673 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.312 -0.036 0.276
T90 0.276 -0.028 0.248
T50 0.168 0.020 0.188
Peak 1.000 -0.378 0.622
====== 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: CPL)
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 -0.824 -0.197 0.203 - - - 2.31e-02 -2.85e-03 2.84e-03 54.960 57
CPL 0.584 -0.969 1.233 101.966 -25.087 99.382 1.01e-01 -6.37e-02 2.51e-01 48.270 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 -0.927 -0.304 0.322 - - - 7.31e-03 -1.32e-03 1.31e-03 58.090 57
CPL -0.323 -0.848 1.510 159.557 -159.557 -159.557 1.35e-02 -7.27e-03 4.31e-02 57.340 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 4.91e-09 1.37e-08 3.09e-08 1.87e-07 8.34e-08 2.36e-07 erg/cm2
90%_error_low -1.12e-09 -2.01e-09 -4.13e-09 -4.97e-08 -1.12e-08 -5.26e-08 erg/cm2
90%_error_hi 1.21e-09 1.98e-09 4.11e-09 6.13e-08 1.13e-08 6.30e-08 erg/cm2
Peak flux PL 1.74e-01 2.47e-01 2.60e-01 5.04e-01 8.39e-01 1.19e+00 ph/cm2/s
90%_error_low -6.06e-02 -5.69e-02 -4.95e-02 -1.80e-01 -1.52e-01 -2.29e-01 ph/cm2/s
90%_error_hi 6.91e-02 5.56e-02 4.89e-02 2.40e-01 1.53e-01 2.47e-01 ph/cm2/s
Fluence CPL 3.56e-09 1.52e-08 3.50e-08 4.13e-08 7.66e-08 9.50e-08 erg/cm2
90%_error_low -1.30e-09 -2.45e-09 -5.10e-09 -2.38e-08 -1.26e-08 -2.59e-08 erg/cm2
90%_error_hi 1.45e-09 2.53e-09 5.24e-09 6.41e-08 1.26e-08 6.29e-08 erg/cm2
Peak flux CPL 1.48e-01 2.54e-01 2.78e-01 2.85e-01 8.19e-01 9.66e-01 ph/cm2/s
90%_error_low -7.34e-02 -6.20e-02 -6.02e-02 -2.85e-01 -1.57e-01 -2.53e-01 ph/cm2/s
90%_error_hi 8.36e-02 6.28e-02 6.27e-02 2.92e-01 1.58e-01 3.52e-01 ph/cm2/s
======================================================================
Special notes of this burst