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: Sun Mar 20 23:23:31 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger676423
======================================================================
Trigger: 00676423 Segment: 000
BAT Trigger Time: 478294344 [s; MET]
Trigger Stop: 478294416 [s; MET]
UTC: 2016-02-27T19:32:08.096040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 194.788571324558 Dec: 78.6392014846058 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.02
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.02
Analysis Position: [ source = BAT ]
RA: 194.788571324558 Dec: 78.6392014846058 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 195.059174407585 Dec: 78.6685120054544 [deg; J2000]
{ 13h 00m 14.2s , +78d 40' 06.6" }
+/- 2.97376821924807 [arcmin] (estimated 90% radius based on SNR)
+/- 1.34383552293449 [arcmin] (formal 1-sigma fit error)
SNR: 6.41158430887127
Angular difference between the analysis and refined position is 3.646356 arcmin
Partial Coding Fraction: 0.5078125 [ including projection effects ]
Duration
T90: 316.347999989986 +/- 75.7592504173685
Measured from: -92.8080000281334
to: 223.539999961853 [s; relative to TRIGTIME]
T50: 175.111999988556 +/- 14.1224678947954
Measured from: 23.9279999732971
to: 199.039999961853 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 198.839999973774
to: 199.839999973774 [s; relative to TRIGTIME]
Total Fluence
Measured from: -99.3880000114441
to: 236.963999986649 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.410156 2.282590 1.494348 0.364893
0.108258 0.112514 0.096859 0.080193 [error]
Peak 0.011925 0.028957 0.033011 0.010485
0.004695 0.005094 0.004449 0.003599 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 336.352 -99.388 236.964
T90 316.348 -92.808 223.540
T50 175.112 23.928 199.040
Peak 1.000 198.840 199.840
====== 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 -1.549 -0.103 0.102 - - - 1.05e-03 -6.52e-05 6.49e-05 59.220 57
CPL -0.753 -0.455 0.509 75.534 -13.405 37.857 2.72e-03 -1.12e-03 2.22e-03 49.650 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 -1.023 -0.265 0.278 - - - 5.33e-03 -9.21e-04 9.17e-04 55.670 57
CPL 1.991 -1.936 3.430 73.724 -12.767 34.211 1.15e-01 -1.15e-01 2.78e+00 47.030 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 4.74e-07 8.45e-07 1.16e-06 3.27e-06 3.34e-06 5.74e-06 erg/cm2
90%_error_low -4.66e-08 -5.25e-08 -9.25e-08 -5.20e-07 -2.23e-07 -6.02e-07 erg/cm2
90%_error_hi 4.78e-08 5.24e-08 9.25e-08 5.82e-07 2.25e-07 6.52e-07 erg/cm2
Peak flux PL 1.39e-01 1.86e-01 1.83e-01 3.24e-01 6.15e-01 8.33e-01 ph/cm2/s
90%_error_low -4.35e-02 -3.94e-02 -3.31e-02 -1.05e-01 -1.08e-01 -1.48e-01 ph/cm2/s
90%_error_hi 4.87e-02 3.89e-02 3.29e-02 1.33e-01 1.09e-01 1.53e-01 ph/cm2/s
Fluence CPL 4.19e-07 9.17e-07 1.19e-06 1.10e-06 3.12e-06 3.63e-06 erg/cm2
90%_error_low -5.55e-08 -6.68e-08 -1.03e-07 -4.60e-07 -2.52e-07 -5.19e-07 erg/cm2
90%_error_hi 5.63e-08 6.84e-08 1.04e-07 8.51e-07 2.54e-07 8.66e-07 erg/cm2
Peak flux CPL 6.10e-02 2.05e-01 2.31e-01 5.29e-02 5.43e-01 5.50e-01 ph/cm2/s
90%_error_low -4.31e-02 -5.44e-02 -4.51e-02 -3.79e-02 -1.17e-01 -1.23e-01 ph/cm2/s
90%_error_hi 6.20e-02 5.20e-02 4.67e-02 8.84e-02 1.19e-01 1.40e-01 ph/cm2/s
======================================================================
Special notes of this burst