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: Fri Jan 17 16:59:12 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger430172
======================================================================
Trigger: 00430172 Segment: 000
BAT Trigger Time: 302005921.856 [s; MET]
Trigger Stop: 302005922.88 [s; MET]
UTC: 2010-07-28T10:31:55.829200 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 44.0530055621985 Dec: 0.27954807728338 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.07
Image Trigger?: NO
Rate S/N Ratio: 22.4499443206436 [ if not an image trigger ]
Image S/N Ratio: 9.07
Analysis Position: [ source = BAT ]
RA: 44.0530055621985 Dec: 0.27954807728338 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 44.050972895668 Dec: 0.296290443876571 [deg; J2000]
{ 02h 56m 12.2s , +00d 17' 46.6" }
+/- 1.48438603528959 [arcmin] (estimated 90% radius based on SNR)
+/- 0.378504934007746 [arcmin] (formal 1-sigma fit error)
SNR: 17.3002124815293
Angular difference between the analysis and refined position is 1.011918 arcmin
Partial Coding Fraction: 0.1132812 [ including projection effects ]
Duration
T90: 12.0800000429153 +/- 2.73632743473403
Measured from: -1.28000003099442
to: 10.8000000119209 [s; relative to TRIGTIME]
T50: 4.24000006914139 +/- 1.32715634477846
Measured from: 0.191999971866608
to: 4.432000041008 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.65200001001358
to: 0.34799998998642 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.74400001764297
to: 13.1999999880791 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.551394 0.929337 0.752256 0.234375
0.063173 0.068249 0.060173 0.049528 [error]
Peak 0.067621 0.175138 0.128493 0.041964
0.017676 0.021196 0.018313 0.014161 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 14.944 -1.744 13.200
T90 12.080 -1.280 10.800
T50 4.240 0.192 4.432
Peak 1.000 -0.652 0.348
====== 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 -1.543 -0.141 0.141 - - - 1.19e-02 -9.69e-04 9.66e-04 52.670 57
CPL -1.341 -0.325 0.595 173.179 -173.179 -173.179 1.48e-02 -1.48e-02 1.34e-02 52.270 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 -1.536 -0.225 0.225 - - - 2.75e-02 -4.11e-03 4.10e-03 48.580 57
CPL -0.157 -1.042 1.393 66.425 -14.165 54.693 1.40e-01 -1.40e-01 5.72e-01 43.100 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 2.36e-07 4.22e-07 5.79e-07 1.65e-06 1.67e-06 2.88e-06 erg/cm2
90%_error_low -3.34e-08 -3.72e-08 -5.94e-08 -3.37e-07 -1.44e-07 -3.86e-07 erg/cm2
90%_error_hi 3.49e-08 3.69e-08 5.89e-08 3.90e-07 1.45e-07 4.25e-07 erg/cm2
Peak flux PL 1.17e+00 1.16e+00 7.97e-01 8.67e-01 3.47e+00 3.99e+00 ph/cm2/s
90%_error_low -2.77e-01 -1.86e-01 -1.39e-01 -2.62e-01 -5.34e-01 -5.90e-01 ph/cm2/s
90%_error_hi 2.94e-01 1.84e-01 1.38e-01 3.17e-01 5.35e-01 5.91e-01 ph/cm2/s
Fluence CPL 2.26e-07 4.30e-07 5.90e-07 1.24e-06 1.65e-06 2.49e-06 erg/cm2
90%_error_low -4.10e-08 -4.24e-08 -6.60e-08 -6.29e-07 -1.53e-07 -6.41e-07 erg/cm2
90%_error_hi 2.15e-08 4.38e-08 6.77e-08 8.24e-07 1.52e-07 7.65e-07 erg/cm2
Peak flux CPL 9.35e-01 1.33e+00 9.01e-01 2.70e-01 3.38e+00 3.44e+00 ph/cm2/s
90%_error_low -3.16e-01 -2.39e-01 -1.70e-01 N/A -5.39e-01 -5.70e-01 ph/cm2/s
90%_error_hi 3.38e-01 2.54e-01 1.74e-01 N/A 5.41e-01 6.00e-01 ph/cm2/s
======================================================================
Special notes of this burst