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 13:23:17 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger230702
======================================================================
Trigger: 00230702 Segment: 000
BAT Trigger Time: 180704287.68 [s; MET]
Trigger Stop: 180704291.776 [s; MET]
UTC: 2006-09-23T11:38:06.217800 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 238.201486511859 Dec: -30.9072142492461 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.4
Image Trigger?: NO
Rate S/N Ratio: 10.3923048454133 [ if not an image trigger ]
Image S/N Ratio: 9.4
Analysis Position: [ source = BAT ]
RA: 238.201486511859 Dec: -30.9072142492461 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 238.187882282817 Dec: -30.9054737709443 [deg; J2000]
{ 15h 52m 45.1s , -30d 54' 19.7" }
+/- 1.6711126016364 [arcmin] (estimated 90% radius based on SNR)
+/- 0.76876867175969 [arcmin] (formal 1-sigma fit error)
SNR: 14.6062519696874
Angular difference between the analysis and refined position is 0.708095 arcmin
Partial Coding Fraction: 0.3632812 [ including projection effects ]
Duration
T90: 8.94800001382828 +/- 1.29634099081825
Measured from: 0.331999987363815
to: 9.28000000119209 [s; relative to TRIGTIME]
T50: 4.30400002002716 +/- 1.05255496990518
Measured from: 2.43599998950958
to: 6.74000000953674 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 4.92800000309944
to: 5.92800000309944 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0680000185966492
to: 9.88799998164177 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.391487 0.368509 0.110670 0.029042
0.036084 0.033707 0.029116 0.028135 [error]
Peak 0.062140 0.059262 0.018138 0.005878
0.011742 0.010860 0.009368 0.008608 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 9.956 -0.068 9.888
T90 8.948 0.332 9.280
T50 4.304 2.436 6.740
Peak 1.000 4.928 5.928
====== 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 -2.474 -0.247 0.228 - - - 4.96e-03 -8.37e-04 8.22e-04 58.540 57
CPL -1.814 -0.188 1.302 10.459 N/A N/A 1.26e-02 N/A N/A 57.280 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 -2.436 -0.462 0.401 - - - 7.51e-03 -2.45e-03 2.43e-03 59.260 57
CPL 0.017 -2.032 -0.017 26.890 N/A N/A 3.18e-01 N/A N/A 55.860 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 1.59e-07 1.62e-07 1.17e-07 1.35e-07 4.90e-07 5.72e-07 erg/cm2
90%_error_low -2.30e-08 -1.90e-08 -2.62e-08 -5.05e-08 -6.17e-08 -8.96e-08 erg/cm2
90%_error_hi 2.35e-08 1.88e-08 2.77e-08 6.83e-08 6.32e-08 1.01e-07 erg/cm2
Peak flux PL 7.66e-01 4.46e-01 1.65e-01 8.06e-02 1.42e+00 1.46e+00 ph/cm2/s
90%_error_low -2.13e-01 -1.05e-01 -6.56e-02 -4.69e-02 -3.18e-01 -3.26e-01 ph/cm2/s
90%_error_hi 2.21e-01 1.04e-01 7.27e-02 7.71e-02 3.18e-01 3.26e-01 ph/cm2/s
Fluence CPL N/A N/A N/A N/A N/A N/A erg/cm2
90%_error_low -2.30e-08 -1.90e-08 -2.62e-08 -5.05e-08 -6.17e-08 -8.96e-08 erg/cm2
90%_error_hi 2.35e-08 1.88e-08 2.77e-08 6.83e-08 6.32e-08 1.01e-07 erg/cm2
Peak flux CPL 7.03e-01 5.63e-01 6.71e-02 4.90e-04 1.33e+00 1.34e+00 ph/cm2/s
90%_error_low -2.40e-01 -1.52e-01 -6.71e-02 N/A -3.26e-01 -3.29e-01 ph/cm2/s
90%_error_hi 2.44e-01 1.53e-01 1.39e-01 N/A 3.29e-01 3.27e-01 ph/cm2/s
======================================================================
Special notes of this burst