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: Tue Jun 21 11:02:28 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger688452
======================================================================
Trigger: 00688452 Segment: 000
BAT Trigger Time: 486484998.776 [s; MET]
Trigger Stop: 486484998.84 [s; MET]
UTC: 2016-06-01T14:43:02.422720 [includes UTCF correction]
Where From?: (*SHORT BURST*) TDRSS scaled map message
BAT
RA: 235.033918410918 Dec: 64.4946031295717 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.25
Image Trigger?: NO
Rate S/N Ratio: 32.2955105239103 [ if not an image trigger ]
Image S/N Ratio: 7.25
Analysis Position: [ source = BAT ]
RA: 235.033918410918 Dec: 64.4946031295717 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 234.924492779546 Dec: 64.528563546378 [deg; J2000]
{ 15h 39m 41.9s , +64d 31' 42.8" }
+/- 1.81602265889292 [arcmin] (estimated 90% radius based on SNR)
+/- 0.731365658551343 [arcmin] (formal 1-sigma fit error)
SNR: 12.970154431687
Angular difference between the analysis and refined position is 3.483454 arcmin
Partial Coding Fraction: 0.6640625 [ including projection effects ]
Duration
T90: 0.119999945163727 +/- 0.0226274207069314
Measured from: -0.0120000243186951
to: 0.107999920845032 [s; relative to TRIGTIME]
T50: 0.0559999346733093 +/- 0.0200000405311584
Measured from: 0.0199999809265137
to: 0.075999915599823 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.450000047683716
to: 0.549999952316284 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0240000486373901
to: 0.120000004768372 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.018239 0.032260 0.032931 0.012618
0.003680 0.004248 0.004366 0.003604 [error]
Peak 0.019563 0.041073 0.040290 0.011953
0.007613 0.008023 0.007337 0.006300 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.144 -0.024 0.120
T90 0.120 -0.012 0.108
T50 0.056 0.020 0.076
Peak 1.000 -0.450 0.550
====== 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 -0.977 -0.242 0.248 - - - 4.12e-02 -5.89e-03 5.88e-03 59.210 57
CPL -0.573 -0.529 0.962 209.369 -209.369 -209.369 6.17e-02 -6.17e-02 -5.28e-02 58.450 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 -0.902 -0.339 0.365 - - - 8.02e-03 -1.62e-03 1.59e-03 65.720 57
CPL -0.449 -0.732 1.622 214.220 -214.220 -214.220 1.22e-02 -5.56e-03 3.36e-02 65.310 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 4.65e-09 1.18e-08 2.40e-08 1.23e-07 6.47e-08 1.63e-07 erg/cm2
90%_error_low -1.23e-09 -1.99e-09 -3.95e-09 -3.98e-08 -1.03e-08 -4.28e-08 erg/cm2
90%_error_hi 1.34e-09 1.95e-09 3.89e-09 5.13e-08 1.04e-08 5.29e-08 erg/cm2
Peak flux PL 1.87e-01 2.69e-01 2.88e-01 5.72e-01 9.21e-01 1.31e+00 ph/cm2/s
90%_error_low -7.37e-02 -7.12e-02 -5.74e-02 -2.17e-01 -1.84e-01 -2.69e-01 ph/cm2/s
90%_error_hi 8.72e-02 6.97e-02 5.68e-02 2.96e-01 1.86e-01 2.90e-01 ph/cm2/s
Fluence CPL 4.19e-09 1.21e-08 2.52e-08 7.55e-08 6.39e-08 1.17e-07 erg/cm2
90%_error_low -1.52e-09 -2.13e-09 -4.57e-09 -4.62e-08 -1.07e-08 -4.72e-08 erg/cm2
90%_error_hi 1.60e-09 2.18e-09 4.75e-09 9.52e-08 1.07e-08 9.06e-08 erg/cm2
Peak flux CPL 1.61e-01 2.70e-01 3.04e-01 3.91e-01 9.00e-01 1.12e+00 ph/cm2/s
90%_error_low -9.40e-02 -7.88e-02 -6.85e-02 -2.43e-01 -1.93e-01 -3.32e-01 ph/cm2/s
90%_error_hi 1.05e-01 7.52e-02 7.33e-02 3.57e-01 1.93e-01 3.93e-01 ph/cm2/s
======================================================================
Special notes of this burst