The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 08LP17
# Created Thu May 24 01:37:49 2012
# Orbit generated from Bernstein formalism
# Fitting 19 observations of 19
# Arc: 0.90y
# First observation: 2008/06/06
# Last observation: 2009/04/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000379 0.050899 -0.000019 -0.010375 0.032139 0.000000
# Chi-squared of fit: 30.30 DOF: 32 RMS: 0.22
# Min/Max residuals: -0.52 0.54
# Exact a, adot, b, bdot, g, gdot:
2.252322E-05 4.858974E-02 -6.175263E-06 -1.038199E-02 3.398308E-02 -5.319750E-03
# Covariance matrix:
1.7160E-13 -1.2863E-12 -8.7447E-15 1.6679E-13 -1.6909E-13 -1.7818E-11
-1.2863E-12 8.3876E-11 8.6868E-13 -1.3804E-11 1.8607E-11 1.4732E-09
-8.7447E-15 8.6868E-13 1.6026E-13 -3.4966E-13 2.2022E-13 1.5850E-11
1.6679E-13 -1.3804E-11 -3.4966E-13 2.8726E-12 -3.2155E-12 -2.4656E-10
-1.6909E-13 1.8607E-11 2.2022E-13 -3.2155E-12 4.9029E-12 3.4298E-10
-1.7818E-11 1.4732E-09 1.5850E-11 -2.4656E-10 3.4298E-10 2.6310E-08
# lat0 lon0 xBary yBary zBary JD0
7.346043 -138.519615 -0.567321 0.106895 -0.829111 2454623.714224
# Heliocentric elements and errors
Epoch: 2454620.5000 = 2008/06/03
Mean Anomaly: 358.06068 +/- 0.068
Argument of Peri: 162.03272 +/- 0.455
Long of Asc Node: 72.51877 +/- 0.002
Inclination: 14.08959 +/- 0.001
Eccentricity: 0.66410982 +/- 0.0011
Semi-Major Axis: 89.21458021 +/- 0.2356
Time of Perihelion: 2456278.5555 +/- 57.7
Perihelion: 29.96630142 +/- 0.1263
Aphelion: 148.46285901 +/- 0.4043
Period (y) 842.6786 +/- 3.34
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -22.11404810 +/- 0.0014
Ecliptic Y -20.31518818 +/- 0.0013
Ecliptic Z 3.76237649 +/- 0.0002
Ecliptic XDOT 0.00283760 +/- 0.0000
Ecliptic YDOT -0.00272111 +/- 0.0000
Ecliptic ZDOT -0.00088447 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 30.26373194 +/- 0.0013
Geocenter to KBO 29.42641093 +/- 0.0019
# Hcoef: 6.45
The following table shows the complete astrometric record for 08LP17. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (08LP17) followed by the observatory code and reference code for the source of the astrometry.
2008 06 06.21347 14 45 20.44 -08 16 45.7 20.9R 08LP17 675 Cz2704 2008 06 06.26421 14 45 20.19 -08 16 45.3 21.0R 08LP17 675 Cz2704 2008 06 07.20266 14 45 15.63 -08 16 38.4 20.8R 08LP17 675 Cz2704 2008 06 07.24348 14 45 15.46 -08 16 38.1 21.0R 08LP17 675 Cz2704 2008 06 19.24897 14 44 23.79 -08 15 52.8 08LP17 675 Cz2704 2008 06 19.30271 14 44 23.53 -08 15 53.2 08LP17 675 Cz2704 2008 06 20.21121 14 44 20.15 -08 15 52.6 08LP17 675 Cz2704 2008 07 01.27114 14 43 45.35 -08 16 33.8 08LP17 675 Cz2704 2008 07 02.18189 14 43 43.08 -08 16 40.9 08LP17 675 Cz2704 2008 07 02.25658 14 43 42.88 -08 16 41.7 08LP17 675 Cz2704 2008 08 23.04975 14 44 15.77 -08 36 55.8 08LP17 807 C~03Je 2009 02 03.46852 15 03 04.48 -10 14 03.4 08LP17 675 C~03Je 2009 02 03.56280 15 03 04.67 -10 14 03.5 08LP17 675 C~03Je 2009 02 04.46414 15 03 06.58 -10 14 03.6 08LP17 675 C~03Je 2009 02 04.56845 15 03 06.80 -10 14 03.8 08LP17 675 C~03Je 2009 04 27.33482 14 59 21.76 -09 52 13.7 21.0R 08LP17 688 C~06gx 2009 04 27.39876 14 59 21.36 -09 52 12.2 08LP17 688 C~06gx 2009 04 30.22967 14 59 04.26 -09 51 09.7 08LP17 675 C~0Aba 2009 04 30.28381 14 59 03.89 -09 51 08.7 08LP17 675 C~0Aba
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 0.02 0.00 0.28 2 0.0001 -3.66 0.05 -0.74 0.29 3 0.0027 -70.28 -0.39 -14.54 0.00 4 0.0028 -72.78 0.03 -15.02 0.14 5 0.0357 -817.75 0.54 -203.04 0.11 6 0.0358 -821.31 -0.07 -204.58 -0.52 7 0.0383 -869.32 -0.18 -219.15 0.12 8 0.0686 -1349.36 -0.18 -414.40 0.02 9 0.0711 -1379.34 0.15 -431.34 -0.18 10 0.0713 -1381.93 0.09 -433.00 -0.43 11 0.2131 -550.08 -0.08 -1443.10 -0.07 12 0.6633 17167.91 0.11 -2075.07 -0.09 13 0.6635 17170.64 0.02 -2074.35 -0.11 14 0.6660 17197.84 -0.18 -2066.27 0.42 15 0.6663 17201.03 0.09 -2065.52 0.36 16 0.8901 13619.77 0.18 -1775.71 -0.06 17 0.8903 13613.65 0.03 -1776.00 -0.03 18 0.8981 13352.59 0.11 -1789.98 0.04 19 0.8982 13347.04 -0.35 -1790.62 -0.29
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
08LP17 quality flag:2 Type: CENTAURR CENTAURR 5:1EEEE axisobj 86.394 86.846 86.003 ecceobj 0.653 0.656 0.651 incobj 14.122 14.123 14.121 qmin 29.893 28.781 29.826 qmax 167.969 168.846 148.081 amean 88.230 91.568 88.037 amin 86.932 82.307 87.286 amax 98.959 99.024 89.054 emean 0.660 0.676 0.659 emin 0.655 0.638 0.654 emax 0.697 0.706 0.664 imean 12.713 11.062 13.050 imin 11.638 8.053 12.587 imax 12.847 12.905 13.337 excite_mean 0.696 0.704 0.696 fracstop 0.119 0.310 1.000 cjmean 2.854 2.846 2.849 libcent 0 -180.0 -180.0 180.4 libamp 0 -180.0 -180.0 161.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 176.2 229.4 265.6 kozaiamp 17.4 89.6 98.6