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: Thu Mar 17 18:46:57 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger672236
======================================================================
Trigger: 00672236 Segment: 000
BAT Trigger Time: 475921247.744 [s; MET]
Trigger Stop: 475921248.768 [s; MET]
UTC: 2016-01-31T08:20:31.969040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 78.1817178167953 Dec: -7.06755751563068 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.32
Image Trigger?: NO
Rate S/N Ratio: 11.6619037896906 [ if not an image trigger ]
Image S/N Ratio: 7.32
Analysis Position: [ source = BAT ]
RA: 78.1817178167953 Dec: -7.06755751563068 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 78.1685449857049 Dec: -7.03847058064275 [deg; J2000]
{ 05h 12m 40.5s , -07d 02' 18.5" }
+/- 1.08535062368957 [arcmin] (estimated 90% radius based on SNR)
+/- 0.380568137913955 [arcmin] (formal 1-sigma fit error)
SNR: 27.0585181131645
Angular difference between the analysis and refined position is 1.913386 arcmin
Partial Coding Fraction: 0.6484375 [ including projection effects ]
Duration
T90: 327.751999974251 +/- 71.029021038502
Measured from: 12.8079999685287
to: 340.55999994278 [s; relative to TRIGTIME]
T50: 64.3879999518394 +/- 5.0269799927161
Measured from: 21.0239999890327
to: 85.4119999408722 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 15.972000002861
to: 16.972000002861 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.49200004339218
to: 773.032000005245 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 6.899761 10.672348 9.534881 3.253039
0.198139 0.209287 0.185796 0.160217 [error]
Peak 0.155088 0.280972 0.279466 0.118139
0.011451 0.014370 0.014797 0.012332 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 774.524 -1.492 773.032
T90 327.752 12.808 340.560
T50 64.388 21.024 85.412
Peak 1.000 15.972 16.972
====== 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 -1.212 -0.045 0.046 - - - 2.57e-03 -6.08e-05 6.07e-05 54.430 57
CPL -1.209 -0.044 0.048 9999.360 -9999.360 -9999.360 2.58e-03 -5.91e-05 2.37e-04 54.540 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 -1.069 -0.097 0.098 - - - 5.49e-02 -2.98e-03 2.98e-03 42.620 57
CPL -1.000 -0.239 0.325 794.234 -794.234 -794.234 5.92e-02 -6.94e-03 2.35e-02 42.650 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 1.94e-06 4.26e-06 7.35e-06 2.94e-05 2.01e-05 4.30e-05 erg/cm2
90%_error_low -1.01e-07 -1.28e-07 -1.92e-07 -1.83e-06 -4.89e-07 -1.90e-06 erg/cm2
90%_error_hi 1.03e-07 1.28e-07 1.92e-07 1.92e-06 4.90e-07 1.98e-06 erg/cm2
Peak flux PL 6.10e-04 6.17e-03 6.74e-02 7.58e+00 2.99e-01 7.60e+00 ph/cm2/s
90%_error_low -2.52e-05 N/A N/A -4.43e-01 N/A -3.71e-01 ph/cm2/s
90%_error_hi 7.58e-05 N/A N/A 4.54e-01 N/A 5.49e-01 ph/cm2/s
Fluence CPL 1.94e-06 4.26e-06 7.29e-06 2.92e-05 2.02e-05 4.30e-05 erg/cm2
90%_error_low N/A -1.29e-07 N/A N/A -5.95e-07 -4.25e-06 erg/cm2
90%_error_hi N/A 1.28e-07 N/A N/A 3.84e-07 6.85e-07 erg/cm2
Peak flux CPL 1.50e+00 1.95e+00 1.86e+00 3.04e+00 6.34e+00 8.41e+00 ph/cm2/s
90%_error_low -2.06e-01 -1.33e-01 -1.26e-01 -1.05e+00 -3.50e-01 -1.15e+00 ph/cm2/s
90%_error_hi 1.28e-01 1.29e-01 1.42e-01 3.56e-01 3.63e-01 5.13e-01 ph/cm2/s
======================================================================
Special notes of this burst