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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Fri Aug 7 22:43:33 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger649706
======================================================================
Trigger: 00649706 Segment: 000
BAT Trigger Time: 459093744 [s; MET]
Trigger Stop: 459093808 [s; MET]
UTC: 2015-07-20T14:02:09.120700 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 119.582501208641 Dec: -28.3009627793679 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.55
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.55
Analysis Position: [ source = BAT ]
RA: 119.582501208641 Dec: -28.3009627793679 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 119.583 Dec: -28.301 [deg; J2000]
{ 07h 58m 19.9s , -28d -18' -3.6" }
+/- 2.14183486279 [arcmin] (estimated 90% radius based on SNR)
SNR: 10.2476384118
Angular difference between the analysis and refined position is 0.026445 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 238.535999953747 +/- 44.4195098491896
Measured from: -122.34399998188
to: 116.191999971867 [s; relative to TRIGTIME]
T50: 138.075999975204 +/- 56.825518919244
Measured from: -91.160000026226
to: 46.9159999489784 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -182.276000022888
to: -181.276000022888 [s; relative to TRIGTIME]
Total Fluence
Measured from: -182.639999985695
to: 122.867999970913 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.899414 0.563440 0.207311 0.096377
0.101130 0.103665 0.088545 0.074619 [error]
Peak 0.045225 0.024130 0.009531 0.012343
0.018471 0.018702 0.015488 0.012972 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 305.508 -182.640 122.868
T90 238.536 -122.344 116.192
T50 138.076 -91.160 46.916
Peak 1.000 -182.276 -181.276
====== 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 -2.478 -0.419 0.359 - - - 2.55e-04 -7.67e-05 7.64e-05 50.310 57
CPL -1.983 -0.016 1.656 1.205 -0.658 25.957 5.30e-04 -4.51e-04 -2.06e-04 50.930 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 -3.592 -2.331 1.165 - - - 2.56e-03 -2.56e-03 3.92e-03 59.690 57
CPL -1.893 N/A N/A 1.781 N/A N/A 4.22e-02 N/A N/A 59.540 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 2.51e-07 2.56e-07 1.84e-07 2.11e-07 7.75e-07 9.03e-07 erg/cm2
90%_error_low -4.87e-08 -5.23e-08 -7.05e-08 -1.21e-07 -1.67e-07 -2.39e-07 erg/cm2
90%_error_hi 4.88e-08 4.96e-08 8.05e-08 2.06e-07 1.79e-07 3.07e-07 erg/cm2
Peak flux PL 8.22e-01 2.49e-01 4.14e-02 7.93e-03 1.12e+00 1.12e+00 ph/cm2/s
90%_error_low -4.49e-01 -1.92e-01 -4.14e-02 -7.93e-03 -5.83e-01 -5.85e-01 ph/cm2/s
90%_error_hi 4.58e-01 1.97e-01 9.28e-02 5.27e-02 5.88e-01 5.90e-01 ph/cm2/s
Fluence CPL 2.47e-07 2.31e-07 1.57e-07 2.03e-07 7.06e-07 8.37e-07 erg/cm2
90%_error_low -5.29e-08 -9.84e-08 -1.03e-07 -1.68e-07 -2.85e-07 -3.94e-07 erg/cm2
90%_error_hi 5.18e-08 7.34e-08 1.08e-07 2.90e-07 2.53e-07 4.44e-07 erg/cm2
Peak flux CPL N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_low -4.49e-01 -1.92e-01 -4.14e-02 -7.93e-03 -5.83e-01 -5.85e-01 ph/cm2/s
90%_error_hi 4.58e-01 1.97e-01 9.28e-02 5.27e-02 5.88e-01 5.90e-01 ph/cm2/s
======================================================================
Special notes of this burst