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: 02VB131 # Created Sun Dec 22 02:08:26 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 25 observations of 25 # Arc: 10.92y # First observation: 2002/11/07 # Last observation: 2013/10/07 # Chi-squared of fit: 46.59 DOF: 44 RMS: 0.24 # Min/Max residuals: -0.86 0.42 # Exact a, adot, b, bdot, g, gdot: 1.400890E-05 2.110259E-02 -5.147969E-07 2.187427E-04 2.284762E-02 2.433365E-04 # Covariance matrix: 1.6761E-13 -5.9838E-14 5.3174E-16 -4.3788E-16 -2.0155E-14 -1.9035E-13 -5.9838E-14 4.5426E-14 -3.9943E-16 3.8328E-16 -2.1438E-14 1.7323E-13 5.3174E-16 -3.9943E-16 1.1687E-13 -1.6688E-14 -7.2263E-16 -1.8438E-15 -4.3788E-16 3.8328E-16 -1.6688E-14 4.7558E-15 6.7917E-17 1.6736E-15 -2.0155E-14 -2.1438E-14 -7.2263E-16 6.7917E-17 3.8212E-13 -3.4625E-14 -1.9035E-13 1.7323E-13 -1.8438E-15 1.6736E-15 -3.4625E-14 7.4642E-13 # lat0 lon0 xBary yBary zBary JD0 -1.432680 19.651257 -0.411681 -0.022500 -0.898216 2452585.644793 # Heliocentric elements and errors Epoch: 2452586.5000 = 2002/11/08 Mean Anomaly: 152.31712 +/- 0.091 Argument of Peri: 139.06475 +/- 0.085 Long of Asc Node: 86.79624 +/- 0.006 Inclination: 1.52942 +/- 0.000 Eccentricity: 0.03928953 +/- 0.0001 Semi-Major Axis: 43.15414335 +/- 0.0046 Time of Perihelion: 2408775.9800 +/- 27.1 Perihelion: 41.45863748 +/- 0.0054 Aphelion: 44.84964923 +/- 0.0057 Period (y) 283.4927 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.91271735 +/- 0.0011 Ecliptic Y 15.40983550 +/- 0.0004 Ecliptic Z -1.09431347 +/- 0.0000 Ecliptic XDOT -0.00082977 +/- 0.0000 Ecliptic YDOT 0.00238805 +/- 0.0000 Ecliptic ZDOT 0.00002568 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.66917755 +/- 0.0011 Geocenter to KBO 43.76827728 +/- 0.0012 # Hcoef: 6.32
The following table shows the complete astrometric record for 02VB131. 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 (02VB131) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.14405 01 14 44.40 +06 21 38.9 22.4R 02VB131 695 Cg8319 2002 11 07.25151 01 14 43.99 +06 21 36.3 02VB131 695 Cg8319 2002 11 30.24813 01 13 28.01 +06 14 28.5 22.5R 02VB131 568 Cg8319 2002 11 30.33764 01 13 27.78 +06 14 27.1 02VB131 568 Cg8319 2002 12 01.23981 01 13 25.42 +06 14 14.5 02VB131 568 Cg8319 2002 12 05.08615 01 13 16.04 +06 13 24.9 22.1R 02VB131 695 Ch0066 2002 12 05.19676 01 13 15.80 +06 13 23.6 02VB131 695 Ch0066 2003 10 23.16123 01 20 16.60 +06 55 41.4 22.2R 02VB131 695 Cl5726 2003 10 23.25665 01 20 16.19 +06 55 39.0 02VB131 695 Cl5726 2004 09 17.49232 01 27 12.11 +07 37 56.3 22.2R 02VB131 568 Cl5726 2004 09 17.53062 01 27 11.97 +07 37 55.3 02VB131 568 Cl5726 2005 09 28.311998 01 31 00.75 +08 01 10.6 22.9V 02VB131 645 C~2Jx8 2005 09 28.312827 01 31 00.75 +08 01 10.7 22.8V 02VB131 645 C~2Jx8 2005 09 28.315315 01 31 00.77 +08 01 10.6 23.1V 02VB131 645 C~2Jx8 2005 10 11.381197 01 30 05.59 +07 55 43.9 22.6V 02VB131 645 C~2Jx8 2005 10 11.382026 01 30 05.58 +07 55 43.7 22.1V 02VB131 645 C~2Jx8 2005 10 11.384514 01 30 05.59 +07 55 43.8 23.8V 02VB131 645 C~2Jx8 2008 11 01.388761 01 42 06.61 +09 08 20.5 02VB131 645 C~1GLM 2008 11 01.389590 01 42 06.60 +09 08 20.4 02VB131 645 C~1GLM 2008 11 01.392078 01 42 06.59 +09 08 20.4 02VB131 645 C~1GLM 2008 12 01.12214 01 40 14.56 +08 58 15.0 23.2R 02VB131 688 C~02MM 2008 12 01.31955 01 40 14.01 +08 58 12.1 02VB131 688 C~02MM 2013 10 07.37876 02 06 46.94 +11 29 37.8 22.6R 02VB131 695 C~0zdT 2013 10 07.43946 02 06 46.66 +11 29 36.8 02VB131 695 C~0zdT 2013 10 07.50035 02 06 46.41 +11 29 35.0 02VB131 695 C~0zdT
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 0.06 0.00 0.17
2 0.0003 0.00 0.25 0.00 -0.03
3 0.0633 0.00 0.11 0.00 -0.00
4 0.0635 0.00 0.30 0.00 -0.13
5 0.0660 0.00 -0.04 0.00 -0.10
6 0.0765 0.00 -0.35 0.00 0.15
7 0.0768 0.00 -0.03 0.00 0.18
8 0.9583 0.00 -0.29 0.00 0.01
9 0.9586 0.00 -0.21 0.00 0.01
10 1.8627 0.00 -0.21 0.00 0.14
11 1.8628 0.00 -0.13 0.00 0.02
12 2.8916 0.00 -0.15 0.00 -0.18
13 2.8916 0.00 -0.10 0.00 -0.06
14 2.8916 0.00 0.36 0.00 -0.09
15 2.9274 0.00 0.08 0.00 0.10
16 2.9274 0.00 -0.01 0.00 -0.08
17 2.9274 0.00 0.30 0.00 0.08
18 5.9856 0.00 0.42 0.00 -0.31
19 5.9856 0.00 0.32 0.00 -0.39
20 5.9856 0.00 0.33 0.00 -0.33
21 6.0670 0.00 -0.86 0.00 0.19
22 6.0676 0.00 0.07 0.00 0.42
23 10.9165 0.00 0.16 0.00 -0.00
24 10.9166 0.00 -0.21 0.00 0.36
25 10.9168 0.00 -0.12 0.00 -0.08
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.
02VB131 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.469 43.469 43.469 ecceobj 0.034 0.034 0.034 incobj 1.529 1.529 1.529 qmin 40.829 40.824 40.827 qmax 45.704 45.700 45.705 amean 43.181 43.180 43.180 amin 42.851 42.850 42.849 amax 43.523 43.523 43.523 emean 0.032 0.032 0.032 emin 0.013 0.013 0.013 emax 0.051 0.051 0.051 imean 0.935 0.935 0.935 imin 0.370 0.369 0.370 imax 1.315 1.315 1.315 excite_mean 0.036 0.036 0.036 fracstop 1.000 1.000 1.000 cjmean 3.090 3.090 3.090 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 167.2 167.2 167.1 kozaiamp 179.9 179.9 180.0