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: Fri Jul 10 23:58:17 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger643833
======================================================================
Trigger: 00643833 Segment: 000
BAT Trigger Time: 456036160.768 [s; MET]
Trigger Stop: 456036168.96 [s; MET]
UTC: 2015-06-15T04:42:27.048040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 107.570242386832 Dec: -22.471915183491 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.52
Image Trigger?: NO
Rate S/N Ratio: 14.142135623731 [ if not an image trigger ]
Image S/N Ratio: 10.52
Analysis Position: [ source = BAT ]
RA: 107.570242386832 Dec: -22.471915183491 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 107.544771652447 Dec: -22.4681600613637 [deg; J2000]
{ 07h 10m 10.7s , -22d 28' 05.4" }
+/- 1.83988874689869 [arcmin] (estimated 90% radius based on SNR)
+/- 0.934000086233514 [arcmin] (formal 1-sigma fit error)
SNR: 12.7304782220261
Angular difference between the analysis and refined position is 1.430079 arcmin
Partial Coding Fraction: 0.8515625 [ including projection effects ]
Duration
T90: 32.6839999556541 +/- 7.48940716116703
Measured from: -1.95600003004074
to: 30.7279999256134 [s; relative to TRIGTIME]
T50: 13.8359999060631 +/- 5.33741215626278
Measured from: 3.06800001859665
to: 16.9039999246597 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 5.80000001192093
to: 6.80000001192093 [s; relative to TRIGTIME]
Total Fluence
Measured from: -2.86000001430511
to: 36.4800000190735 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.374145 0.391850 0.247264 0.028964
0.039414 0.040938 0.035736 0.031677 [error]
Peak 0.026813 0.023162 0.014257 0.007697
0.006540 0.006725 0.005902 0.004840 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 39.340 -2.860 36.480
T90 32.684 -1.956 30.728
T50 13.836 3.068 16.904
Peak 1.000 5.800 6.800
====== 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 -1.798 -0.214 0.205 - - - 1.67e-03 -2.20e-04 2.15e-04 41.740 57
CPL -1.805 -0.208 0.730 9999.360 -9999.350 -9999.360 1.67e-03 -7.57e-04 2.49e-03 41.740 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 -1.924 -0.642 0.536 - - - 4.09e-03 -1.55e-03 1.38e-03 59.360 57
CPL -1.915 -1.964 0.476 9999.270 N/A N/A 4.11e-03 N/A N/A 59.360 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 1.11e-07 1.71e-07 1.96e-07 4.32e-07 6.06e-07 9.10e-07 erg/cm2
90%_error_low -1.86e-08 -1.89e-08 -3.51e-08 -1.40e-07 -8.03e-08 -1.77e-07 erg/cm2
90%_error_hi 1.91e-08 1.88e-08 3.53e-08 1.78e-07 8.18e-08 2.08e-07 erg/cm2
Peak flux PL 2.54e-01 1.99e-01 1.05e-01 8.01e-02 5.94e-01 6.37e-01 ph/cm2/s
90%_error_low -1.00e-01 -5.37e-02 -5.00e-02 -5.55e-02 -1.60e-01 -1.75e-01 ph/cm2/s
90%_error_hi 1.07e-01 5.36e-02 5.00e-02 9.91e-02 1.60e-01 1.77e-01 ph/cm2/s
Fluence CPL 1.12e-07 1.69e-07 1.96e-07 4.42e-07 6.10e-07 8.95e-07 erg/cm2
90%_error_low -2.14e-08 -1.79e-08 -4.10e-08 -2.28e-07 -1.03e-07 -3.09e-07 erg/cm2
90%_error_hi 2.00e-08 2.60e-08 4.16e-08 8.92e-08 6.32e-08 1.88e-07 erg/cm2
Peak flux CPL 2.28e-01 1.62e-01 7.99e-02 6.56e-02 4.99e-01 5.37e-01 ph/cm2/s
90%_error_low N/A -1.62e-01 -7.99e-02 -3.53e-02 -2.58e-01 -2.77e-01 ph/cm2/s
90%_error_hi N/A 6.56e-02 4.48e-02 3.72e-02 2.38e-01 2.56e-01 ph/cm2/s
======================================================================
Special notes of this burst