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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Fri Jan 17 18:23:13 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger423181
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Trigger: 00423181 Segment: 000
BAT Trigger Time: 296583976 [s; MET]
Trigger Stop: 296584040 [s; MET]
UTC: 2010-05-26T16:26:10.166000 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 230.785345490408 Dec: 25.6390614214754 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.19
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.19
Analysis Position: [ source = BAT ]
RA: 230.785345490408 Dec: 25.6390614214754 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 230.784823014055 Dec: 25.6298554920833 [deg; J2000]
{ 15h 23m 08.4s , +25d 37' 47.5" }
+/- 1.8162569628365 [arcmin] (estimated 90% radius based on SNR)
+/- 1.0876105788903 [arcmin] (formal 1-sigma fit error)
SNR: 12.967764214267
Angular difference between the analysis and refined position is 0.553078 arcmin
Partial Coding Fraction: 0.2695312 [ including projection effects ]
Duration
T90: 97.5999999642372 +/- 8.4753064967989
Measured from: -20.8560000061989
to: 76.7439999580383 [s; relative to TRIGTIME]
T50: 70.6839999556541 +/- 14.7373986772667
Measured from: -9.92400002479553
to: 60.7599999308586 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 69.9039999842644
to: 70.9039999842644 [s; relative to TRIGTIME]
Total Fluence
Measured from: -33.4800000190735
to: 80.5 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.324158 1.448520 0.994924 0.213550
0.112804 0.117239 0.102982 0.088454 [error]
Peak 0.029222 0.037317 0.017107 0.015141
0.010897 0.011264 0.010272 0.008189 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 113.980 -33.480 80.500
T90 97.600 -20.856 76.744
T50 70.684 -9.924 60.760
Peak 1.000 69.904 70.904
====== 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 -1.837 -0.167 0.162 - - - 2.36e-03 -2.30e-04 2.26e-04 67.990 57
CPL -1.843 -0.984 0.430 9999.340 -9999.330 -9999.340 2.35e-03 -1.56e-03 1.51e-03 68.000 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 -1.707 -0.685 0.616 - - - 5.47e-03 -2.38e-03 2.31e-03 66.980 57
CPL 0.030 -2.207 5.813 52.790 N/A N/A 4.88e-02 N/A N/A 65.710 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 4.72e-07 7.06e-07 7.91e-07 1.68e-06 2.47e-06 3.64e-06 erg/cm2
90%_error_low -6.43e-08 -6.05e-08 -1.06e-07 -4.26e-07 -2.41e-07 -5.30e-07 erg/cm2
90%_error_hi 6.65e-08 6.05e-08 1.06e-07 5.12e-07 2.43e-07 5.94e-07 erg/cm2
Peak flux PL 2.75e-01 2.45e-01 1.50e-01 1.39e-01 7.29e-01 8.09e-01 ph/cm2/s
90%_error_low -1.47e-01 -9.91e-02 -7.75e-02 -1.39e-01 -2.91e-01 -3.21e-01 ph/cm2/s
90%_error_hi 1.69e-01 9.84e-02 7.88e-02 1.80e-01 2.92e-01 3.24e-01 ph/cm2/s
Fluence CPL 4.71e-07 6.61e-07 7.14e-07 1.73e-06 2.31e-06 3.54e-06 erg/cm2
90%_error_low -8.02e-08 -1.36e-07 -1.43e-07 -8.21e-07 -4.67e-07 -4.70e-07 erg/cm2
90%_error_hi 8.03e-08 4.72e-08 3.27e-08 2.16e-07 1.18e-07 3.90e-07 erg/cm2
Peak flux CPL 2.21e-01 2.96e-01 1.60e-01 2.78e-02 7.01e-01 7.05e-01 ph/cm2/s
90%_error_low -1.64e-01 -1.26e-01 -1.60e-01 -2.78e-02 -2.90e-01 -2.93e-01 ph/cm2/s
90%_error_hi 1.89e-01 1.44e-01 1.02e-01 1.76e-01 2.95e-01 3.38e-01 ph/cm2/s
======================================================================