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 21:29:59 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger146227
======================================================================
Trigger: 00146227 Segment: 000
BAT Trigger Time: 143210163.264 [s; MET]
Trigger Stop: 143210165.312 [s; MET]
UTC: 2005-07-16T12:36:03.639280 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 338.597596475194 Dec: 38.6960690450086 [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: 9.38083151964686 [ if not an image trigger ]
Image S/N Ratio: 8
Analysis Position: [ source = BAT ]
RA: 338.597596475194 Dec: 38.6960690450086 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 338.594337878481 Dec: 38.6846567074294 [deg; J2000]
{ 22h 34m 22.6s , +38d 41' 04.8" }
+/- 1.03431979783523 [arcmin] (estimated 90% radius based on SNR)
+/- 0.363424505934964 [arcmin] (formal 1-sigma fit error)
SNR: 28.9856402513656
Angular difference between the analysis and refined position is 0.701540 arcmin
Partial Coding Fraction: 0.2304688 [ including projection effects ]
Duration
T90: 69.0200000107288 +/- 5.28801364282444
Measured from: -8.34799998998642
to: 60.6720000207424 [s; relative to TRIGTIME]
T50: 35.4240000247955 +/- 2.01619441985393
Measured from: 5.24799999594688
to: 40.6720000207424 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 12.2199999988079
to: 13.2199999988079 [s; relative to TRIGTIME]
Total Fluence
Measured from: -13.6759999990463
to: 76.3880000114441 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.898998 3.328691 2.973365 0.818287
0.102201 0.104854 0.090755 0.072139 [error]
Peak 0.056977 0.098305 0.077562 0.029747
0.012744 0.014055 0.011910 0.008729 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 90.064 -13.676 76.388
T90 69.020 -8.348 60.672
T50 35.424 5.248 40.672
Peak 1.000 12.220 13.220
====== 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: CPL)
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 -1.340 -0.060 0.061 - - - 7.18e-03 -2.49e-04 2.49e-04 58.350 57
CPL -0.789 -0.254 0.270 122.331 -22.908 55.537 1.28e-02 -2.92e-03 4.04e-03 43.730 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 -1.411 -0.248 0.252 - - - 1.74e-02 -2.71e-03 2.70e-03 46.000 57
CPL -0.942 -0.813 1.114 116.278 -52.424 -116.278 3.00e-02 -1.48e-02 7.49e-02 45.240 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 7.11e-07 1.44e-06 2.28e-06 7.97e-06 6.33e-06 1.24e-05 erg/cm2
90%_error_low -4.85e-08 -5.95e-08 -9.03e-08 -6.87e-07 -2.29e-07 -7.38e-07 erg/cm2
90%_error_hi 4.96e-08 5.93e-08 9.01e-08 7.30e-07 2.29e-07 7.73e-07 erg/cm2
Peak flux PL 6.59e-01 6.99e-01 5.26e-01 6.42e-01 2.13e+00 2.52e+00 ph/cm2/s
90%_error_low -1.74e-01 -1.23e-01 -9.52e-02 -2.06e-01 -3.44e-01 -3.93e-01 ph/cm2/s
90%_error_hi 1.86e-01 1.21e-01 9.38e-02 2.56e-01 3.45e-01 3.95e-01 ph/cm2/s
Fluence CPL 6.23e-07 1.49e-06 2.40e-06 4.11e-06 6.15e-06 8.63e-06 erg/cm2
90%_error_low -6.04e-08 -6.63e-08 -1.07e-07 -9.79e-07 -2.46e-07 -9.90e-07 erg/cm2
90%_error_hi 6.18e-08 6.68e-08 1.08e-07 1.37e-06 2.45e-07 1.36e-06 erg/cm2
Peak flux CPL 6.06e-01 7.34e-01 5.54e-01 3.93e-01 2.10e+00 2.29e+00 ph/cm2/s
90%_error_low -2.00e-01 -1.41e-01 -1.09e-01 -2.45e-01 -3.47e-01 -4.38e-01 ph/cm2/s
90%_error_hi 2.10e-01 1.48e-01 1.14e-01 3.34e-01 3.48e-01 5.03e-01 ph/cm2/s
======================================================================
Special notes of this burst