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 17:59:46 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger424998
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Trigger: 00424998 Segment: 000
BAT Trigger Time: 298599673.152 [s; MET]
Trigger Stop: 298599673.408 [s; MET]
UTC: 2010-06-19T00:21:07.246620 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 84.6155727820155 Dec: -27.000942273695 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.94
Image Trigger?: NO
Rate S/N Ratio: 16.4924225024706 [ if not an image trigger ]
Image S/N Ratio: 7.94
Analysis Position: [ source = BAT ]
RA: 84.6155727820155 Dec: -27.000942273695 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 84.6176583901286 Dec: -27.0119445672717 [deg; J2000]
{ 05h 38m 28.2s , -27d 00' 43.0" }
+/- 1.00501703786266 [arcmin] (estimated 90% radius based on SNR)
+/- 0.33989339844573 [arcmin] (formal 1-sigma fit error)
SNR: 30.2004551390375
Angular difference between the analysis and refined position is 0.669486 arcmin
Partial Coding Fraction: 0.7578125 [ including projection effects ]
Duration
T90: 97.6999999880791 +/- 1.62414775065874
Measured from: 0.283999979496002
to: 97.9839999675751 [s; relative to TRIGTIME]
T50: 81.5919999480247 +/- 0.429958165968188
Measured from: 7.58799999952316
to: 89.1799999475479 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 87.0879999995232
to: 88.0879999995232 [s; relative to TRIGTIME]
Total Fluence
Measured from: -2.94800001382828
to: 106.536000013351 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.655715 3.001123 1.896164 0.368262
0.063418 0.066092 0.058389 0.051028 [error]
Peak 0.181533 0.217342 0.139429 0.026788
0.007880 0.008497 0.007368 0.005082 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 109.484 -2.948 106.536
T90 97.700 0.284 97.984
T50 81.592 7.588 89.180
Peak 1.000 87.088 88.088
====== 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 -1.780 -0.060 0.060 - - - 4.37e-03 -1.34e-04 1.33e-04 43.410 57
CPL -1.741 -0.094 0.232 337.676 -290.950 -337.676 4.56e-03 -5.67e-04 1.32e-03 43.330 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 -1.714 -0.088 0.087 - - - 3.39e-02 -1.69e-03 1.68e-03 46.720 57
CPL -1.662 -0.135 0.282 320.500 N/A N/A 3.60e-02 N/A N/A 46.770 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 7.95e-07 1.23e-06 1.43e-06 3.22e-06 4.41e-06 6.68e-06 erg/cm2
90%_error_low -4.41e-08 -3.88e-08 -6.02e-08 -2.93e-07 -1.38e-07 -3.33e-07 erg/cm2
90%_error_hi 4.51e-08 3.87e-08 6.01e-08 3.14e-07 1.39e-07 3.49e-07 erg/cm2
Peak flux PL 1.71e+00 1.52e+00 9.27e-01 8.55e-01 4.53e+00 5.02e+00 ph/cm2/s
90%_error_low -1.37e-01 -7.42e-02 -6.03e-02 -1.09e-01 -2.18e-01 -2.33e-01 ph/cm2/s
90%_error_hi 1.41e-01 7.40e-02 5.99e-02 1.18e-01 2.19e-01 2.33e-01 ph/cm2/s
Fluence CPL 7.88e-07 1.23e-06 1.44e-06 3.03e-06 4.39e-06 6.49e-06 erg/cm2
90%_error_low -5.65e-08 -4.12e-08 -6.15e-08 -8.75e-07 -1.65e-07 -8.97e-07 erg/cm2
90%_error_hi 4.29e-08 4.31e-08 6.21e-08 2.47e-07 1.51e-07 5.15e-07 erg/cm2
Peak flux CPL 1.73e+00 1.52e+00 9.27e-01 8.39e-01 4.52e+00 5.00e+00 ph/cm2/s
90%_error_low -1.82e-01 -7.69e-02 -4.68e-02 -2.69e-01 -2.31e-01 -3.76e-01 ph/cm2/s
90%_error_hi 1.02e-01 8.33e-02 6.42e-02 2.01e-01 2.20e-01 2.46e-01 ph/cm2/s
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