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: 02VY130 # Created Sun Dec 22 02:08:26 2024 # Orbit generated from Bernstein formalism # Fitting 5 observations of 5 # Arc: 24.07d # First observation: 2002/11/07 # Last observation: 2002/12/01 Preliminary a, adot, b, bdot, g, gdot: 0.000000 0.040786 0.000000 -0.019283 0.033904 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 0.48 DOF: 5 RMS: 0.05 # Min/Max residuals: -0.14 0.07 # Exact a, adot, b, bdot, g, gdot: 1.254469E-05 2.477255E-02 -9.686279E-06 -1.926983E-02 3.135301E-02 -1.593040E-02 # Covariance matrix: 7.3209E-11 1.4290E-07 -5.8665E-14 -1.3980E-10 2.2792E-08 5.4880E-08 1.4290E-07 2.8178E-04 -1.1526E-10 -2.7430E-07 4.4937E-05 1.0712E-04 -5.8665E-14 -1.1526E-10 7.2561E-13 -1.1116E-11 -1.8577E-11 -1.5570E-10 -1.3980E-10 -2.7430E-07 -1.1116E-11 1.0199E-09 -4.4388E-08 -4.7301E-07 2.2792E-08 4.4937E-05 -1.8577E-11 -4.4388E-08 7.1671E-06 1.7607E-05 5.4880E-08 1.0712E-04 -1.5570E-10 -4.7301E-07 1.7607E-05 3.4041E-04 # lat0 lon0 xBary yBary zBary JD0 -0.419368 54.068152 0.165178 -0.007153 -0.974353 2452585.820663 # Heliocentric elements and errors Epoch: 2452580.5000 = 2002/11/02 Mean Anomaly: 302.83022 +/- 56.032 Argument of Peri: 291.96521 +/- 56.668 Long of Asc Node: 233.26426 +/- 0.377 Inclination: 37.91163 +/- 18.851 Eccentricity: 0.46007909 +/- 0.5056 Semi-Major Axis: 34.73008943 +/- 18.6711 Time of Perihelion: 2464452.4300 +/- 6613.2 Perihelion: 18.75150143 +/- 20.2461 Aphelion: 50.70867743 +/- 32.4261 Period (y) 204.6761 +/- 165.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.42037345 +/- 1.5983 Ecliptic Y 26.52234233 +/- 2.2050 Ecliptic Z -0.23375144 +/- 0.0200 Ecliptic XDOT -0.00258257 +/- 0.0011 Ecliptic YDOT 0.00012965 +/- 0.0018 Ecliptic ZDOT -0.00167227 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 32.87309215 +/- 2.0141 Geocenter to KBO 31.89486795 +/- 2.7234 # Hcoef: 8.12
The following table shows the complete astrometric record for 02VY130. 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 (02VY130) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.31992 03 27 12.83 +18 22 57.7 23.1R 02VY130 695 Cg8319 2002 11 07.41537 03 27 12.21 +18 22 54.4 02VY130 695 Cg8319 2002 11 30.36106 03 24 44.14 +18 09 38.7 22.7R 02VY130 568 Cg8319 2002 11 30.40439 03 24 43.86 +18 09 37.2 02VY130 568 Cg8319 2002 12 01.38859 03 24 37.71 +18 09 03.6 02VY130 568 Cg8319
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 -0.01 0.00 -0.01
2 0.0003 -9.37 0.02 -1.03 -0.01
3 0.0631 -2249.88 0.03 -249.69 0.07
4 0.0632 -2254.12 -0.02 -250.15 0.06
5 0.0659 -2347.39 0.00 -260.83 -0.14
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.
02VY130 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