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: Wed Jan 22 13:00:27 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger231974
======================================================================
Trigger: 00231974 Segment: 000
BAT Trigger Time: 181443811.072 [s; MET]
Trigger Stop: 181443819.264 [s; MET]
UTC: 2006-10-02T01:03:29.592060 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 220.345605609545 Dec: 48.7365696281697 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.16
Image Trigger?: NO
Rate S/N Ratio: 9.05538513813742 [ if not an image trigger ]
Image S/N Ratio: 8.16
Analysis Position: [ source = BAT ]
RA: 220.345605609545 Dec: 48.7365696281697 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 220.358870294559 Dec: 48.7292052095614 [deg; J2000]
{ 14h 41m 26.1s , +48d 43' 45.1" }
+/- 1.76765982208087 [arcmin] (estimated 90% radius based on SNR)
+/- 0.765720145403143 [arcmin] (formal 1-sigma fit error)
SNR: 13.4800554571368
Angular difference between the analysis and refined position is 0.686153 arcmin
Partial Coding Fraction: 0.390625 [ including projection effects ]
Duration
T90: 17.6279999911785 +/- 1.96191027057147
Measured from: -1.59999999403954
to: 16.027999997139 [s; relative to TRIGTIME]
T50: 9.30000001192093 +/- 2.86882830417352
Measured from: 3.08399999141693
to: 12.3840000033379 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -1.391999989748
to: -0.391999989748001 [s; relative to TRIGTIME]
Total Fluence
Measured from: -2.34799998998642
to: 16.8680000007153 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.318130 0.400795 0.284224 0.064711
0.043394 0.040102 0.034606 0.028995 [error]
Peak 0.023881 0.040577 0.021427 0.006217
0.009888 0.008981 0.007854 0.006567 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 19.216 -2.348 16.868
T90 17.628 -1.600 16.028
T50 9.300 3.084 12.384
Peak 1.000 -1.392 -0.392
====== 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 -1.717 -0.204 0.200 - - - 3.89e-03 -4.45e-04 4.41e-04 53.530 57
CPL -1.719 -0.202 0.211 9999.360 -9999.350 -9999.360 3.89e-03 -2.71e-03 3.94e-03 53.540 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 -1.530 -0.524 0.536 - - - 6.46e-03 -1.86e-03 1.85e-03 63.510 57
CPL -1.249 -0.980 2.120 132.501 -132.501 -132.501 8.98e-03 -8.98e-03 1.03e-01 63.510 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 1.17e-07 1.88e-07 2.29e-07 5.48e-07 6.91e-07 1.08e-06 erg/cm2
90%_error_low -2.17e-08 -2.17e-08 -3.48e-08 -1.59e-07 -8.18e-08 -1.90e-07 erg/cm2
90%_error_hi 2.29e-08 2.15e-08 3.44e-08 1.98e-07 8.23e-08 2.19e-07 erg/cm2
Peak flux PL 2.73e-01 2.70e-01 1.87e-01 2.05e-01 8.13e-01 9.36e-01 ph/cm2/s
90%_error_low -1.34e-01 -9.00e-02 -6.56e-02 -1.17e-01 -2.47e-01 -2.67e-01 ph/cm2/s
90%_error_hi 1.59e-01 8.69e-02 6.41e-02 1.91e-01 2.51e-01 2.67e-01 ph/cm2/s
Fluence CPL 1.19e-07 1.88e-07 2.28e-07 5.66e-07 6.96e-07 1.09e-06 erg/cm2
90%_error_low -2.77e-08 -2.15e-08 -4.29e-08 -3.50e-07 -1.03e-07 -3.49e-07 erg/cm2
90%_error_hi 2.57e-08 2.42e-08 4.79e-08 1.22e-08 7.01e-08 2.03e-07 erg/cm2
Peak flux CPL 2.67e-01 2.74e-01 1.89e-01 1.74e-01 8.08e-01 9.05e-01 ph/cm2/s
90%_error_low -1.53e-01 -8.71e-02 -6.74e-02 -1.74e-01 -2.54e-01 -3.27e-01 ph/cm2/s
90%_error_hi 1.66e-01 1.03e-01 7.31e-02 2.13e-01 2.55e-01 2.96e-01 ph/cm2/s
======================================================================
Special notes of this burst