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: 02VG131
# Created Sun Dec 22 02:08:27 2024
# Orbit generated from Bernstein formalism
# Fitting 6 observations of 6
# Arc: 26.02d
# First observation: 2002/11/09
# Last observation: 2002/12/05
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.142845 -0.000001 -0.040859 0.076124 0.000000
# Chi-squared of fit: 2.04 DOF: 6 RMS: 0.10
# Min/Max residuals: -0.17 0.17
# Exact a, adot, b, bdot, g, gdot:
2.656539E-05 1.196282E-01 -9.494068E-06 -4.423184E-02 7.217277E-02 3.040783E-02
# Covariance matrix:
8.7547E-13 5.9961E-10 -9.8108E-15 8.3662E-11 1.0774E-10 -8.0054E-09
5.9961E-10 2.6609E-06 -5.1618E-11 3.8149E-07 4.5545E-07 -3.9420E-05
-9.8108E-15 -5.1618E-11 7.2905E-13 -1.9213E-11 -7.9997E-12 1.0320E-09
8.3662E-11 3.8149E-07 -1.9213E-11 5.6833E-08 6.3714E-08 -6.1600E-06
1.0774E-10 4.5545E-07 -7.9997E-12 6.3714E-08 7.9303E-08 -6.3204E-06
-8.0054E-09 -3.9420E-05 1.0320E-09 -6.1600E-06 -6.3204E-06 7.2066E-04
# lat0 lon0 xBary yBary zBary JD0
5.763984 17.348065 -0.478382 0.086751 -0.859744 2452587.680353
# Heliocentric elements and errors
Epoch: 2452580.5000 = 2002/11/02
Mean Anomaly: 33.34110 +/- 7.962
Argument of Peri: 99.83351 +/- 20.948
Long of Asc Node: 213.38440 +/- 0.309
Inclination: 21.22791 +/- 0.409
Eccentricity: 0.34324684 +/- 0.2056
Semi-Major Axis: 19.10836899 +/- 2.6429
Time of Perihelion: 2449754.8958 +/- 334.2
Perihelion: 12.54948173 +/- 4.2955
Aphelion: 25.66725626 +/- 5.2954
Period (y) 83.5302 +/- 17.33
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 13.83958110 +/- 0.0513
Ecliptic Y 4.83014279 +/- 0.0160
Ecliptic Z 1.39142010 +/- 0.0054
Ecliptic XDOT -0.00010425 +/- 0.0010
Ecliptic YDOT 0.00472062 +/- 0.0003
Ecliptic ZDOT -0.00155338 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 14.72414121 +/- 0.0485
Geocenter to KBO 13.85564018 +/- 0.0541
# Hcoef: 11.33
The following table shows the complete astrometric record for 02VG131. 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 (02VG131) followed by the observatory code and reference code for the source of the astrometry.
2002 11 09.17961 00 54 57.98 +12 07 52.4 22.5R 02VG131 695 Cg8319 2002 11 09.26667 00 54 57.20 +12 07 44.2 02VG131 695 Cg8319 2002 12 02.21513 00 52 25.81 +11 34 57.0 22.8R 02VG131 568 Cg8319 2002 12 02.33724 00 52 25.26 +11 34 48.3 02VG131 568 Cg8319 2002 12 05.14387 00 52 14.81 +11 31 28.3 23.1R 02VG131 662 C~077L 2002 12 05.19575 00 52 14.61 +11 31 24.5 02VG131 662 C~077L
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 -0.07 0.00 -0.04
2 0.0002 -13.73 0.07 -3.11 0.04
3 0.0631 -2826.95 0.09 -949.65 -0.17
4 0.0634 -2837.79 -0.10 -954.51 0.17
5 0.0711 -3057.32 0.13 -1078.68 0.06
6 0.0712 -3061.52 -0.13 -1081.03 -0.06
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.
02VG131 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0