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 22:31:51 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger113872
======================================================================
Trigger: 00113872 Segment: 000
BAT Trigger Time: 134495927.872 [s; MET]
Trigger Stop: 134495929.92 [s; MET]
UTC: 2005-04-06T15:58:48.407200 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 34.4284384928714 Dec: -50.1778978956069 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8
Image Trigger?: NO
Rate S/N Ratio: 9.48683298050514 [ if not an image trigger ]
Image S/N Ratio: 8
Analysis Position: [ source = BAT ]
RA: 34.4284384928714 Dec: -50.1778978956069 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 34.4170333024344 Dec: -50.181327992157 [deg; J2000]
{ 02h 17m 40.1s , -50d 10' 52.8" }
+/- 2.48753495928318 [arcmin] (estimated 90% radius based on SNR)
+/- 0.971760891788176 [arcmin] (formal 1-sigma fit error)
SNR: 8.27434869107593
Angular difference between the analysis and refined position is 0.484143 arcmin
Partial Coding Fraction: 0.953125 [ including projection effects ]
Duration
T90: 5.77600002288818 +/- 1.39300683998906
Measured from: -2.08000001311302
to: 3.69600000977516 [s; relative to TRIGTIME]
T50: 2.23199999332428 +/- 1.38538804675014
Measured from: -0.159999996423721
to: 2.07199999690056 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.19599997997284
to: 2.19599997997284 [s; relative to TRIGTIME]
Total Fluence
Measured from: -2.50400000810623
to: 3.89599999785423 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.080240 0.079122 0.010062 0.008930
0.010812 0.011175 0.009492 0.008004 [error]
Peak 0.022429 0.018200 0.002851 0.003143
0.004452 0.004424 0.003737 0.003254 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 6.400 -2.504 3.896
T90 5.776 -2.080 3.696
T50 2.232 -0.160 2.072
Peak 1.000 1.196 2.196
====== 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 -2.403 -0.365 0.316 - - - 1.24e-03 -3.46e-04 3.48e-04 73.600 57
CPL 0.424 -1.770 2.996 29.373 -6.056 6.156 8.49e-02 -8.49e-02 7.80e+00 65.640 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 -2.458 -0.651 0.521 - - - 1.79e-03 -8.34e-04 8.73e-04 53.010 57
CPL 0.828 -2.883 -0.828 25.369 -25.369 9.057 3.70e-01 -3.70e-01 3.37e+06 49.870 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 2.39e-08 2.55e-08 1.93e-08 2.37e-08 7.77e-08 9.23e-08 erg/cm2
90%_error_low -4.62e-09 -5.10e-09 -6.77e-09 -1.26e-08 -1.69e-08 -2.44e-08 erg/cm2
90%_error_hi 4.66e-09 4.98e-09 7.60e-09 1.99e-08 1.79e-08 3.02e-08 erg/cm2
Peak flux PL 1.86e-01 1.07e-01 3.89e-02 1.87e-02 3.42e-01 3.51e-01 ph/cm2/s
90%_error_low -5.93e-02 -3.59e-02 -2.14e-02 -1.87e-02 -9.83e-02 -1.02e-01 ph/cm2/s
90%_error_hi 6.02e-02 3.47e-02 2.64e-02 2.84e-02 9.88e-02 1.05e-01 ph/cm2/s
Fluence CPL 2.21e-08 3.38e-08 1.07e-08 3.34e-10 6.70e-08 6.71e-08 erg/cm2
90%_error_low -5.50e-09 -7.43e-09 -6.51e-09 N/A -1.29e-08 -1.29e-08 erg/cm2
90%_error_hi 5.30e-09 7.67e-09 9.41e-09 N/A 1.46e-08 1.48e-08 erg/cm2
Peak flux CPL 1.89e-01 1.36e-01 1.02e-02 2.02e-05 3.35e-01 3.35e-01 ph/cm2/s
90%_error_low -6.80e-02 N/A -1.02e-02 N/A -9.22e-02 -9.22e-02 ph/cm2/s
90%_error_hi 6.90e-02 N/A 3.79e-02 N/A 9.33e-02 9.33e-02 ph/cm2/s
======================================================================
Special notes of this burst