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 Jul 11 00:00:48 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger644259
======================================================================
Trigger: 00644259 Segment: 000
BAT Trigger Time: 456187772.992 [s; MET]
Trigger Stop: 456187789.376 [s; MET]
UTC: 2015-06-16T22:49:19.264160 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 314.704655959612 Dec: -53.3935296118629 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 12.26
Image Trigger?: NO
Rate S/N Ratio: 16.9115345252878 [ if not an image trigger ]
Image S/N Ratio: 12.26
Analysis Position: [ source = BAT ]
RA: 314.704655959612 Dec: -53.3935296118629 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 314.712148232386 Dec: -53.4023536225514 [deg; J2000]
{ 20h 58m 50.9s , -53d 24' 08.5" }
+/- 1.16954694878419 [arcmin] (estimated 90% radius based on SNR)
+/- 0.435875366271755 [arcmin] (formal 1-sigma fit error)
SNR: 24.3192565317787
Angular difference between the analysis and refined position is 0.593424 arcmin
Partial Coding Fraction: 0.2890625 [ including projection effects ]
Duration
T90: 608.407999992371 +/- 104.219640720468
Measured from: -30.472000002861
to: 577.93599998951 [s; relative to TRIGTIME]
T50: 108.547999978065 +/- 12.5894971790742
Measured from: 65.8600000143051
to: 174.407999992371 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 93.5839999914169
to: 94.5839999914169 [s; relative to TRIGTIME]
Total Fluence
Measured from: -48.1399999856949
to: 705.776000022888 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 8.654023 11.538063 8.432227 1.844344
0.298362 0.287188 0.241535 0.200517 [error]
Peak 0.100634 0.100453 0.107287 0.031644
0.013932 0.013766 0.012114 0.009574 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 753.916 -48.140 705.776
T90 608.408 -30.472 577.936
T50 108.548 65.860 174.408
Peak 1.000 93.584 94.584
====== 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 -1.661 -0.057 0.057 - - - 2.80e-03 -8.50e-05 8.50e-05 44.530 57
CPL -1.428 -0.224 0.236 131.726 -40.695 868.273 3.60e-03 -7.54e-04 1.01e-03 41.370 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 -1.588 -0.222 0.218 - - - 2.19e-02 -2.83e-03 2.81e-03 60.150 57
CPL -1.354 -0.445 0.913 146.958 -146.958 -146.958 2.84e-02 N/A N/A 59.900 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 3.14e-06 5.22e-06 6.61e-06 1.67e-05 1.96e-05 3.17e-05 erg/cm2
90%_error_low -1.83e-07 -1.79e-07 -2.52e-07 -1.39e-06 -6.14e-07 -1.55e-06 erg/cm2
90%_error_hi 1.88e-07 1.79e-07 2.52e-07 1.48e-06 6.15e-07 1.61e-06 erg/cm2
Peak flux PL 9.81e-01 9.38e-01 6.24e-01 6.46e-01 2.81e+00 3.19e+00 ph/cm2/s
90%_error_low -2.08e-01 -1.28e-01 -1.01e-01 -1.91e-01 -3.67e-01 -4.01e-01 ph/cm2/s
90%_error_hi 2.23e-01 1.27e-01 9.88e-02 2.31e-01 3.68e-01 4.01e-01 ph/cm2/s
Fluence CPL 2.97e-06 5.30e-06 6.73e-06 1.22e-05 1.93e-05 2.73e-05 erg/cm2
90%_error_low -2.35e-07 -1.96e-07 -2.78e-07 -3.03e-06 -6.83e-07 -3.10e-06 erg/cm2
90%_error_hi 2.40e-07 1.97e-07 2.81e-07 4.26e-06 6.81e-07 4.27e-06 erg/cm2
Peak flux CPL 9.34e-01 9.56e-01 6.41e-01 5.09e-01 2.78e+00 3.04e+00 ph/cm2/s
90%_error_low -2.62e-01 -1.40e-01 -1.01e-01 -2.79e-01 -3.81e-01 -5.08e-01 ph/cm2/s
90%_error_hi 2.41e-01 1.45e-01 1.19e-01 1.97e-01 3.80e-01 5.19e-01 ph/cm2/s
======================================================================
Special notes of this burst