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: Wed Jan 22 17:48:25 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger202505
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Trigger: 00202505 Segment: 000
BAT Trigger Time: 164817157.12 [s; MET]
Trigger Stop: 164817161.216 [s; MET]
UTC: 2006-03-23T14:32:36.031580 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 174.408567159494 Dec: 49.9749559287599 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.72
Image Trigger?: NO
Rate S/N Ratio: 12.0415945787923 [ if not an image trigger ]
Image S/N Ratio: 9.72
Analysis Position: [ source = BAT ]
RA: 174.408567159494 Dec: 49.9749559287599 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 174.423183158918 Dec: 49.9927446855327 [deg; J2000]
{ 11h 37m 41.6s , +49d 59' 33.9" }
+/- 1.51831685528247 [arcmin] (estimated 90% radius based on SNR)
+/- 0.620481290476377 [arcmin] (formal 1-sigma fit error)
SNR: 16.7505556540974
Angular difference between the analysis and refined position is 1.207126 arcmin
Partial Coding Fraction: 0.8046875 [ including projection effects ]
Duration
T90: 23.8719999492168 +/- 5.60339326124083
Measured from: -2.6879999935627
to: 21.1839999556541 [s; relative to TRIGTIME]
T50: 11.7759999930859 +/- 2.20892736378892
Measured from: 0.815999984741211
to: 12.5919999778271 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.5959999859333
to: 3.5959999859333 [s; relative to TRIGTIME]
Total Fluence
Measured from: -5.12000000476837
to: 24.4799999892712 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.319907 0.365044 0.300480 0.030001
0.030309 0.031902 0.028556 0.026610 [error]
Peak 0.040100 0.032101 0.015489 0.010026
0.005852 0.006001 0.005619 0.004883 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 29.600 -5.120 24.480
T90 23.872 -2.688 21.184
T50 11.776 0.816 12.592
Peak 1.000 2.596 3.596
====== 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 -1.535 -0.170 0.167 - - - 2.27e-03 -2.17e-04 2.15e-04 50.400 57
CPL -1.429 -0.837 0.569 265.767 -265.767 -265.767 2.57e-03 -8.98e-04 2.31e-03 50.440 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 -1.921 -0.428 0.393 - - - 5.27e-03 -1.42e-03 1.33e-03 51.790 57
CPL -1.936 -1.019 0.122 9999.360 N/A N/A 5.23e-03 N/A N/A 51.800 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 8.87e-08 1.59e-07 2.20e-07 6.31e-07 6.34e-07 1.10e-06 erg/cm2
90%_error_low -1.33e-08 -1.46e-08 -2.86e-08 -1.60e-07 -6.69e-08 -1.86e-07 erg/cm2
90%_error_hi 1.38e-08 1.46e-08 2.86e-08 1.95e-07 6.80e-08 2.15e-07 erg/cm2
Peak flux PL 3.25e-01 2.56e-01 1.35e-01 1.03e-01 7.63e-01 8.20e-01 ph/cm2/s
90%_error_low -8.83e-02 -4.80e-02 -4.70e-02 -5.63e-02 -1.41e-01 -1.58e-01 ph/cm2/s
90%_error_hi 9.02e-02 4.76e-02 4.95e-02 9.12e-02 1.41e-01 1.62e-01 ph/cm2/s
Fluence CPL 8.83e-08 1.60e-07 2.20e-07 6.01e-07 6.32e-07 1.00e-06 erg/cm2
90%_error_low -1.57e-08 -1.50e-08 -2.47e-08 -3.68e-07 -7.50e-08 -3.09e-07 erg/cm2
90%_error_hi 1.12e-08 1.77e-08 2.98e-08 1.43e-07 6.89e-08 1.49e-07 erg/cm2
Peak flux CPL 2.94e-01 1.83e-01 9.60e-02 9.78e-02 6.65e-01 8.30e-01 ph/cm2/s
90%_error_low -1.00e-01 -1.05e-01 -9.60e-02 -3.39e-02 -2.15e-01 N/A ph/cm2/s
90%_error_hi 9.97e-02 8.97e-02 4.00e-02 2.26e-02 2.11e-01 N/A ph/cm2/s
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