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 18:53:53 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger177408
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Trigger: 00177408 Segment: 000
BAT Trigger Time: 159023281.6 [s; MET]
Trigger Stop: 159023289.792 [s; MET]
UTC: 2006-01-15T13:08:00.643040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 54.0444635355556 Dec: 17.3440437273643 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.48
Image Trigger?: NO
Rate S/N Ratio: 13.856406460551 [ if not an image trigger ]
Image S/N Ratio: 10.48
Analysis Position: [ source = BAT ]
RA: 54.0444635355556 Dec: 17.3440437273643 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 54.0158303110988 Dec: 17.3351266547733 [deg; J2000]
{ 03h 36m 03.8s , +17d 20' 06.5" }
+/- 1.9716186502833 [arcmin] (estimated 90% radius based on SNR)
+/- 1.01804246683094 [arcmin] (formal 1-sigma fit error)
SNR: 11.5330130469749
Angular difference between the analysis and refined position is 1.724989 arcmin
Partial Coding Fraction: 0.859375 [ including projection effects ]
Duration
T90: 139.092000007629 +/- 15.210022212775
Measured from: -35.6519999802113
to: 103.440000027418 [s; relative to TRIGTIME]
T50: 92.0320000052452 +/- 2.75519872077308
Measured from: 3.4040000140667
to: 95.4360000193119 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 94.9160000085831
to: 95.9160000085831 [s; relative to TRIGTIME]
Total Fluence
Measured from: -50.1759999990463
to: 108.844000011683 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.988078 1.293676 0.768126 0.107993
0.063730 0.066188 0.058043 0.051335 [error]
Peak 0.028959 0.039118 0.034130 0.014740
0.004954 0.005353 0.004734 0.004136 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 159.020 -50.176 108.844
T90 139.092 -35.652 103.440
T50 92.032 3.404 95.436
Peak 1.000 94.916 95.916
====== 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: 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 -1.705 -0.114 0.112 - - - 1.24e-03 -8.49e-05 8.42e-05 45.940 57
CPL -1.009 -0.471 0.530 66.112 -12.165 42.314 2.91e-03 -1.25e-03 2.60e-03 39.260 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 -1.274 -0.245 0.248 - - - 7.23e-03 -9.85e-04 9.83e-04 52.510 57
CPL -1.276 -0.240 0.683 9999.360 -9999.360 -9999.360 7.25e-03 -7.25e-03 7.90e-03 52.520 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 3.05e-07 4.96e-07 6.08e-07 1.47e-06 1.83e-06 2.88e-06 erg/cm2
90%_error_low -2.99e-08 -3.09e-08 -5.61e-08 -2.64e-07 -1.31e-07 -3.18e-07 erg/cm2
90%_error_hi 3.07e-08 3.09e-08 5.64e-08 3.01e-07 1.32e-07 3.48e-07 erg/cm2
Peak flux PL 2.40e-01 2.76e-01 2.28e-01 3.17e-01 8.59e-01 1.06e+00 ph/cm2/s
90%_error_low -5.87e-02 -4.24e-02 -3.86e-02 -1.01e-01 -1.18e-01 -1.52e-01 ph/cm2/s
90%_error_hi 6.27e-02 4.15e-02 3.79e-02 1.28e-01 1.18e-01 1.56e-01 ph/cm2/s
Fluence CPL 2.77e-07 5.32e-07 6.14e-07 5.33e-07 1.71e-06 1.96e-06 erg/cm2
90%_error_low -3.55e-08 -3.95e-08 -6.22e-08 -2.43e-07 -1.48e-07 -2.87e-07 erg/cm2
90%_error_hi 3.59e-08 4.04e-08 6.19e-08 4.88e-07 1.51e-07 5.02e-07 erg/cm2
Peak flux CPL 2.42e-01 2.76e-01 2.28e-01 3.16e-01 8.63e-01 1.06e+00 ph/cm2/s
90%_error_low N/A N/A N/A N/A N/A -2.16e-01 ph/cm2/s
90%_error_hi N/A N/A N/A N/A N/A 1.41e-01 ph/cm2/s
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