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: Thu Sep 11 11:42:49 EDT 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger420247
======================================================================
Trigger: 00420247 Segment: 000
BAT Trigger Time: 293675704.896 [s; MET]
Trigger Stop: 293675705.92 [s; MET]
UTC: 2010-04-23T00:34:59.164220 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 136.477016071933 Dec: 21.4794761790139 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 21.49
Image Trigger?: NO
Rate S/N Ratio: 116.228223766863 [ if not an image trigger ]
Image S/N Ratio: 21.49
Analysis Position: [ source = BAT ]
RA: 136.477016071933 Dec: 21.4794761790139 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 136.472342171038 Dec: 21.4826479030353 [deg; J2000]
{ 09h 05m 53.4s , +21d 28' 57.5" }
+/- 0.61797808747846 [arcmin] (estimated 90% radius based on SNR)
+/- 0.21655965168157 [arcmin] (formal 1-sigma fit error)
SNR: 60.4962244695789
Angular difference between the analysis and refined position is 0.322975 arcmin
Partial Coding Fraction: 0.7421875 [ including projection effects ]
Duration
T90: 78.8679999709129 +/- 4.15788408231418
Measured from: 0.12799996137619
to: 78.9959999322891 [s; relative to TRIGTIME]
T50: 39.2599999904633 +/- 2.26823990358931
Measured from: 4.06399995088577
to: 43.323999941349 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.155999958515167
to: 1.15599995851517 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.80000001192093
to: 94.8159999847412 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.403571 3.915729 4.264324 1.817516
0.069138 0.076871 0.077810 0.082348 [error]
Peak 0.142233 0.280550 0.413995 0.189063
0.009006 0.011431 0.013359 0.012607 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 96.616 -1.800 94.816
T90 78.868 0.128 78.996
T50 39.260 4.064 43.324
Peak 1.000 0.156 1.156
====== 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 -1.063 -0.045 0.045 - - - 8.63e-03 -2.00e-04 2.00e-04 48.170 57
CPL -1.003 -0.099 -0.008 999.882 -999.882 -999.882 9.14e-03 -6.61e-04 -1.24e-04 51.110 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 -0.725 -0.071 0.072 - - - 6.69e-02 -2.70e-03 2.69e-03 50.100 57
CPL -0.703 -0.087 0.304 9936.610 -9936.610 -9936.610 6.73e-02 -2.41e-03 2.75e-03 50.190 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 7.08e-07 1.70e-06 3.26e-06 1.53e-05 8.83e-06 2.09e-05 erg/cm2
90%_error_low -3.71e-08 -5.13e-08 -8.13e-08 -9.34e-07 -2.11e-07 -9.60e-07 erg/cm2
90%_error_hi 3.79e-08 5.11e-08 8.10e-08 9.79e-07 2.12e-07 1.00e-06 erg/cm2
Peak flux PL 1.70e-04 2.62e-03 7.00e-02 8.55e+00 1.84e-01 8.19e+00 ph/cm2/s
90%_error_low N/A N/A N/A -2.74e-01 N/A 1.88e-01 ph/cm2/s
90%_error_hi N/A N/A N/A 9.44e-01 N/A 1.43e+00 ph/cm2/s
Fluence CPL 7.07e-07 1.70e-06 3.21e-06 1.60e-05 8.82e-06 2.10e-05 erg/cm2
90%_error_low -3.71e-08 -5.14e-08 N/A N/A -2.11e-07 -1.76e-06 erg/cm2
90%_error_hi 3.79e-08 5.11e-08 N/A N/A 2.11e-07 2.54e-07 erg/cm2
Peak flux CPL 1.10e-02 2.02e-03 1.27e-03 2.41e-05 4.39e-02 4.62e-02 ph/cm2/s
90%_error_low -1.10e-02 -2.02e-03 -1.27e-03 -2.41e-05 -4.39e-02 -4.62e-02 ph/cm2/s
90%_error_hi 1.03e-01 8.74e-02 1.55e-02 1.34e-02 5.11e-02 1.70e-01 ph/cm2/s
======================================================================
Special notes of this burst