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: 02VW130
# Created Wed Dec 4 02:08:21 2024
# Orbit generated from Bernstein formalism
# Fitting 5 observations of 5
# Arc: 25.07d
# First observation: 2002/11/07
# Last observation: 2002/12/02
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.030976 -0.000000 0.000795 0.025436 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 3.06 DOF: 5 RMS: 0.14
# Min/Max residuals: -0.29 0.25
# Exact a, adot, b, bdot, g, gdot:
1.640232E-05 2.615288E-02 4.905916E-07 7.635309E-04 2.460812E-02 6.858154E-04
# Covariance matrix:
5.0877E-12 6.5049E-09 2.1691E-14 4.6802E-11 1.2733E-09 -1.0073E-08
6.5049E-09 9.7296E-06 3.2374E-11 6.9852E-08 1.9002E-06 -1.5881E-05
2.1691E-14 3.2374E-11 7.2344E-13 -1.0624E-11 6.3330E-12 -4.5011E-11
4.6802E-11 6.9852E-08 -1.0624E-11 7.7793E-10 1.3664E-08 -9.7895E-08
1.2733E-09 1.9002E-06 6.3330E-12 1.3664E-08 3.7184E-07 -2.5577E-06
-1.0073E-08 -1.5881E-05 -4.5011E-11 -9.7895E-08 -2.5577E-06 4.4658E-04
# lat0 lon0 xBary yBary zBary JD0
0.568722 21.360162 -0.385169 0.009002 -0.910129 2452585.673853
# Heliocentric elements and errors
Epoch: 2452580.5000 = 2002/11/02
Mean Anomaly: 7.75499 +/- 187.363
Argument of Peri: 6.71450 +/- 284.248
Long of Asc Node: 3.51992 +/- 1.645
Inclination: 1.76375 +/- 0.154
Eccentricity: 0.19277756 +/- 0.2249
Semi-Major Axis: 51.30061843 +/- 10.7629
Time of Perihelion: 2449689.4151 +/- 69843.8
Perihelion: 41.41101013 +/- 14.4423
Aphelion: 61.19022674 +/- 17.2599
Period (y) 367.4448 +/- 115.64
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 38.54991067 +/- 0.9378
Ecliptic Y 15.49629279 +/- 0.3667
Ecliptic Z 0.40339608 +/- 0.0100
Ecliptic XDOT -0.00099697 +/- 0.0022
Ecliptic YDOT 0.00273389 +/- 0.0008
Ecliptic ZDOT 0.00008591 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.54989086 +/- 0.8808
Geocenter to KBO 40.63700039 +/- 1.0070
# Hcoef: 6.98
The following table shows the complete astrometric record for 02VW130. 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 (02VW130) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.17311 01 18 05.66 +08 51 27.9 22.6R 02VW130 695 Cg8319 2002 11 07.28046 01 18 05.20 +08 51 25.2 02VW130 695 Cg8319 2002 12 01.26130 01 16 41.63 +08 43 01.4 23.1R 02VW130 568 Cg8319 2002 12 01.33274 01 16 41.39 +08 43 00.2 02VW130 568 Cg8319 2002 12 02.24298 01 16 38.97 +08 42 45.2 02VW130 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 0.08 0.00 0.00
2 0.0003 -7.33 -0.08 0.05 -0.00
3 0.0659 -1344.71 0.25 -1.90 -0.08
4 0.0661 -1348.46 -0.29 -1.67 0.13
5 0.0686 -1387.35 0.03 -2.09 -0.04
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.
02VW130 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