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 20 00:45:45 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger315819
======================================================================
Trigger: 00315819 Segment: 000
BAT Trigger Time: 236804416.512 [s; MET]
Trigger Stop: 236804417.536 [s; MET]
UTC: 2008-07-03T19:00:13.598700 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 101.866687854747 Dec: -63.2222518285121 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.3
Image Trigger?: NO
Rate S/N Ratio: 11.7898261225516 [ if not an image trigger ]
Image S/N Ratio: 7.3
Analysis Position: [ source = BAT ]
RA: 101.866687854747 Dec: -63.2222518285121 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 101.817890032891 Dec: -63.2157827632776 [deg; J2000]
{ 06h 47m 16.3s , -63d 12' 56.8" }
+/- 2.16522293627602 [arcmin] (estimated 90% radius based on SNR)
+/- 1.08686934545919 [arcmin] (formal 1-sigma fit error)
SNR: 10.0885540328859
Angular difference between the analysis and refined position is 1.375157 arcmin
Partial Coding Fraction: 0.5390625 [ including projection effects ]
Duration
T90: 3.5160000026226 +/- 0.805366966222884
Measured from: -1.47200000286102
to: 2.04399999976158 [s; relative to TRIGTIME]
T50: 1.66000002622604 +/- 0.504983148947092
Measured from: -0.719999998807907
to: 0.940000027418137 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.0439999997615814
to: 1.04399999976158 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.7039999961853
to: 2.20800000429153 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.063412 0.141999 0.091808 0.009345
0.014623 0.015348 0.013917 0.011617 [error]
Peak 0.018656 0.048664 0.036362 0.005728
0.007565 0.007995 0.007281 0.005812 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 3.912 -1.704 2.208
T90 3.516 -1.472 2.044
T50 1.660 -0.720 0.940
Peak 1.000 0.044 1.044
====== 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 -1.448 -0.223 0.224 - - - 5.56e-03 -7.85e-04 7.83e-04 61.990 57
CPL -0.416 -0.999 1.404 71.513 -20.434 429.551 1.99e-02 -1.99e-02 9.78e-02 58.890 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 -1.256 -0.307 0.322 - - - 7.97e-03 -1.58e-03 1.57e-03 71.560 57
CPL -0.393 -1.010 1.710 92.046 -36.365 -92.046 2.23e-02 -2.23e-02 1.54e-01 70.100 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 2.64e-08 5.02e-08 7.35e-08 2.31e-07 2.08e-07 3.81e-07 erg/cm2
90%_error_low -5.91e-09 -7.42e-09 -1.28e-08 -7.35e-08 -3.17e-08 -8.60e-08 erg/cm2
90%_error_hi 6.22e-09 7.35e-09 1.28e-08 9.34e-08 3.20e-08 1.02e-07 erg/cm2
Peak flux PL 2.60e-01 3.02e-01 2.53e-01 3.58e-01 9.44e-01 1.17e+00 ph/cm2/s
90%_error_low -8.90e-02 -7.06e-02 -5.56e-02 -1.36e-01 -1.94e-01 -2.35e-01 ph/cm2/s
90%_error_hi 9.86e-02 6.92e-02 5.51e-02 1.79e-01 1.95e-01 2.37e-01 ph/cm2/s
Fluence CPL 2.33e-08 5.70e-08 7.59e-08 5.60e-08 1.90e-07 2.12e-07 erg/cm2
90%_error_low -6.65e-09 -1.01e-08 -1.63e-08 -4.25e-08 -3.72e-08 -5.60e-08 erg/cm2
90%_error_hi 6.93e-09 1.09e-08 1.50e-08 1.61e-07 3.71e-08 1.59e-07 erg/cm2
Peak flux CPL 2.28e-01 3.34e-01 2.73e-01 1.45e-01 9.26e-01 9.78e-01 ph/cm2/s
90%_error_low -9.69e-02 -8.46e-02 -6.45e-02 -1.45e-01 -1.95e-01 -2.27e-01 ph/cm2/s
90%_error_hi 1.08e-01 9.25e-02 6.69e-02 2.98e-01 1.96e-01 3.43e-01 ph/cm2/s
======================================================================
Special notes of this burst