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 18:49:10 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger177666
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Trigger: 00177666 Segment: 000
BAT Trigger Time: 159173402.56 [s; MET]
Trigger Stop: 159173403.584 [s; MET]
UTC: 2006-01-17T06:50:01.599700 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 327.926469426567 Dec: -59.9805138823269 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 24.66
Image Trigger?: NO
Rate S/N Ratio: 217.575274330518 [ if not an image trigger ]
Image S/N Ratio: 24.66
Analysis Position: [ source = BAT ]
RA: 327.926469426567 Dec: -59.9805138823269 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 327.911939614673 Dec: -59.9814227366426 [deg; J2000]
{ 21h 51m 38.9s , -59d 58' 53.1" }
+/- 0.634941450102031 [arcmin] (estimated 90% radius based on SNR)
+/- 0.194003794124425 [arcmin] (formal 1-sigma fit error)
SNR: 58.2005929462861
Angular difference between the analysis and refined position is 0.439541 arcmin
Partial Coding Fraction: 0.2539062 [ including projection effects ]
Duration
T90: 16.8519999980927 +/- 0.143387570436235
Measured from: 0.120000004768372
to: 16.972000002861 [s; relative to TRIGTIME]
T50: 9.95600003004074 +/- 0.361707071753343
Measured from: 3.16799998283386
to: 13.1240000128746 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 11.1439999938011
to: 12.1439999938011 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.97200000286102
to: 26.2879999876022 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 8.900266 12.347206 8.242409 1.944662
0.090123 0.101377 0.087486 0.059684 [error]
Peak 1.206265 1.959037 1.711041 0.424541
0.028262 0.035764 0.034266 0.020155 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 28.260 -1.972 26.288
T90 16.852 0.120 16.972
T50 9.956 3.168 13.124
Peak 1.000 11.144 12.144
====== 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: 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 -1.883 -0.028 0.028 - - - 8.06e-02 -1.23e-03 1.23e-03 73.170 57
CPL -1.513 -0.117 0.120 78.241 -6.437 10.306 1.16e-01 -1.22e-02 1.40e-02 42.940 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: CPL)
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 -1.560 -0.039 0.039 - - - 3.98e-01 -9.20e-03 9.20e-03 98.940 57
CPL -0.937 -0.171 0.176 100.914 -10.244 16.368 7.41e-01 -1.13e-01 1.38e-01 56.740 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 4.17e-06 6.08e-06 6.59e-06 1.34e-05 2.10e-05 3.02e-05 erg/cm2
90%_error_low -1.34e-07 -1.16e-07 -1.11e-07 -4.99e-07 -3.19e-07 -5.53e-07 erg/cm2
90%_error_hi 1.36e-07 1.16e-07 1.10e-07 5.11e-07 3.19e-07 5.59e-07 erg/cm2
Peak flux PL 1.74e+01 1.69e+01 1.14e+01 1.21e+01 5.05e+01 5.78e+01 ph/cm2/s
90%_error_low -7.79e-01 -4.72e-01 -2.94e-01 -6.33e-01 -1.33e+00 -1.35e+00 ph/cm2/s
90%_error_hi 7.94e-01 4.71e-01 2.94e-01 6.51e-01 1.34e+00 1.35e+00 ph/cm2/s
Fluence CPL N/A N/A N/A N/A N/A N/A erg/cm2
90%_error_low -1.34e-07 -1.16e-07 -1.11e-07 -4.99e-07 -3.19e-07 -5.53e-07 erg/cm2
90%_error_hi 1.36e-07 1.16e-07 1.10e-07 5.11e-07 3.19e-07 5.59e-07 erg/cm2
Peak flux CPL 1.45e+01 1.72e+01 1.24e+01 7.75e+00 4.85e+01 5.19e+01 ph/cm2/s
90%_error_low -1.01e+00 -5.04e-01 -3.90e-01 -8.65e-01 -1.41e+00 -1.75e+00 ph/cm2/s
90%_error_hi 1.03e+00 5.05e-01 3.93e-01 9.87e-01 1.41e+00 1.81e+00 ph/cm2/s
======================================================================