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: Mon Jan 26 10:56:01 EST 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger623158
======================================================================
Trigger: 00623158 Segment: 000
BAT Trigger Time: 441786546.692 [s; MET]
Trigger Stop: 441786546.756 [s; MET]
UTC: 2015-01-01T06:28:53.699400 [includes UTCF correction]
Where From?: (*SHORT BURST*) TDRSS scaled map message
BAT
RA: 312.631006525829 Dec: 36.727689408524 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.46
Image Trigger?: NO
Rate S/N Ratio: 19.4422220952236 [ if not an image trigger ]
Image S/N Ratio: 7.46
Analysis Position: [ source = BAT ]
RA: 312.631006525829 Dec: 36.727689408524 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 312.589429830046 Dec: 36.6686981122609 [deg; J2000]
{ 20h 50m 21.5s , +36d 40' 07.3" }
+/- 2.43699652265558 [arcmin] (estimated 90% radius based on SNR)
+/- 1.534244329743 [arcmin] (formal 1-sigma fit error)
SNR: 8.52056726461872
Angular difference between the analysis and refined position is 4.065530 arcmin
Partial Coding Fraction: 0.9140625 [ including projection effects ]
Duration
T90: 0.059999942779541 +/- 0.0113137314268704
Measured from: 0.00400000810623169
to: 0.0639999508857727 [s; relative to TRIGTIME]
T50: 0.031999945640564 +/- 0.0178885800721685
Measured from: 0.0200000405311584
to: 0.0519999861717224 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.46399998664856
to: 0.53600001335144 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0
to: 0.0680000185966492 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.006769 0.016512 0.015015 0.001700
0.002154 0.002727 0.002806 0.002121 [error]
Peak -0.005831 0.026621 0.014870 0.011075
0.006811 0.007201 0.006211 0.005533 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.068 0.000 0.068
T90 0.060 0.004 0.064
T50 0.032 0.020 0.052
Peak 1.000 -0.464 0.536
====== 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: 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 -1.500 -3.136 -1.843 - - - 0.00e+00 8.70e-04 4.03e-03 112.410 57
CPL -1.000 N/A N/A 80.000 N/A N/A 0.00e+00 N/A N/A 112.410 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 -0.849 -0.709 0.927 - - - 2.66e-03 -1.36e-03 1.31e-03 53.240 57
CPL 2.988 -3.543 -2.988 63.389 -21.386 172.944 2.13e-01 -2.13e-01 6.68e+03 50.820 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-09 9.23e-10 2.68e-10 9.76e-11 3.18e-09 3.23e-09 erg/cm2
90%_error_low -8.29e-10 -4.77e-10 -1.91e-10 -8.32e-11 -1.40e-09 -1.43e-09 erg/cm2
90%_error_hi 8.26e-10 4.54e-10 2.06e-10 1.32e-10 1.39e-09 1.43e-09 erg/cm2
Peak flux PL 5.83e-02 8.70e-02 9.71e-02 2.05e-01 3.04e-01 4.46e-01 ph/cm2/s
90%_error_low -5.83e-02 -5.34e-02 -4.68e-02 -2.05e-01 -1.46e-01 -2.18e-01 ph/cm2/s
90%_error_hi 6.57e-02 5.44e-02 4.66e-02 2.89e-01 1.52e-01 2.59e-01 ph/cm2/s
Fluence CPL 3.81e-10 6.60e-09 7.95e-09 1.99e-10 1.51e-08 1.51e-08 erg/cm2
90%_error_low -3.10e-10 -2.05e-09 -2.99e-09 -1.55e-10 -3.41e-09 -3.39e-09 erg/cm2
90%_error_hi 8.16e-10 1.81e-09 3.27e-09 1.96e-10 3.40e-09 3.42e-09 erg/cm2
Peak flux CPL 8.82e-03 1.34e-01 9.34e-02 5.64e-04 2.36e-01 2.36e-01 ph/cm2/s
90%_error_low -8.82e-03 -7.65e-02 -5.87e-02 -5.64e-04 -9.98e-02 -9.99e-02 ph/cm2/s
90%_error_hi 7.28e-02 8.76e-02 7.64e-02 1.51e-01 1.61e-01 1.81e-01 ph/cm2/s
======================================================================
Special notes of this burst