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: Mon Jan 20 11:29:01 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger261299
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Trigger: 00261299 Segment: 000
BAT Trigger Time: 193639474.688 [s; MET]
Trigger Stop: 193639475.712 [s; MET]
UTC: 2007-02-20T04:44:32.912080 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 34.8193073293135 Dec: 68.8182975953661 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.51
Image Trigger?: NO
Rate S/N Ratio: 20.8326666559997 [ if not an image trigger ]
Image S/N Ratio: 10.51
Analysis Position: [ source = BAT ]
RA: 34.8193073293135 Dec: 68.8182975953661 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 34.7970294812238 Dec: 68.8026811112005 [deg; J2000]
{ 02h 19m 11.3s , +68d 48' 09.7" }
+/- 0.671473247251799 [arcmin] (estimated 90% radius based on SNR)
+/- 0.158854406686084 [arcmin] (formal 1-sigma fit error)
SNR: 53.7304176991178
Angular difference between the analysis and refined position is 1.054219 arcmin
Partial Coding Fraction: 0.640625 [ including projection effects ]
Duration
T90: 125.396000027657 +/- 20.6414407381691
Measured from: -1.26399999856949
to: 124.132000029087 [s; relative to TRIGTIME]
T50: 34.8600000143051 +/- 1.66012047274466
Measured from: 8.95199999213219
to: 43.8120000064373 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 11.8600000143051
to: 12.8600000143051 [s; relative to TRIGTIME]
Total Fluence
Measured from: -17.1200000047684
to: 239.087999999523 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 3.918818 5.641653 4.975998 1.627286
0.087647 0.093529 0.086604 0.082865 [error]
Peak 0.141334 0.247157 0.252257 0.079830
0.008838 0.010466 0.010715 0.009097 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 256.208 -17.120 239.088
T90 125.396 -1.264 124.132
T50 34.860 8.952 43.812
Peak 1.000 11.860 12.860
====== 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 -1.373 -0.042 0.042 - - - 4.24e-03 -9.01e-05 9.00e-05 48.270 57
CPL -1.334 -0.062 0.139 994.876 -994.876 -994.876 4.40e-03 -2.42e-04 6.22e-04 48.330 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 -1.158 -0.080 0.080 - - - 5.03e-02 -2.28e-03 2.28e-03 54.600 57
CPL -0.913 -0.275 0.330 248.253 N/A N/A 6.52e-02 N/A N/A 52.780 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 1.23e-06 2.44e-06 3.78e-06 1.28e-05 1.06e-05 2.02e-05 erg/cm2
90%_error_low -5.70e-08 -6.49e-08 -9.37e-08 -7.51e-07 -2.33e-07 -7.87e-07 erg/cm2
90%_error_hi 5.82e-08 6.47e-08 9.35e-08 7.84e-07 2.33e-07 8.14e-07 erg/cm2
Peak flux PL 1.49e+00 1.84e+00 1.65e+00 2.56e+00 5.88e+00 7.55e+00 ph/cm2/s
90%_error_low -1.33e-01 -1.01e-01 -8.55e-02 -2.74e-01 -2.74e-01 -3.63e-01 ph/cm2/s
90%_error_hi 1.37e-01 9.99e-02 8.50e-02 2.95e-01 2.75e-01 3.66e-01 ph/cm2/s
Fluence CPL 1.23e-06 2.44e-06 3.85e-06 1.26e-05 1.05e-05 1.99e-05 erg/cm2
90%_error_low -8.24e-08 -5.80e-08 -1.73e-07 -2.36e-06 -2.38e-07 -2.27e-06 erg/cm2
90%_error_hi 3.97e-08 6.69e-08 3.52e-08 6.43e-07 2.40e-07 1.03e-06 erg/cm2
Peak flux CPL 1.41e+00 1.87e+00 1.70e+00 1.98e+00 5.82e+00 6.97e+00 ph/cm2/s
90%_error_low -1.68e-01 -1.08e-01 -1.04e-01 -5.32e-01 -2.85e-01 -6.13e-01 ph/cm2/s
90%_error_hi 1.72e-01 1.09e-01 1.05e-01 6.78e-01 2.85e-01 7.65e-01 ph/cm2/s
======================================================================