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: 00SF331 # Created Wed Nov 27 02:08:06 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 65.01d # First observation: 2000/09/23 # Last observation: 2000/11/27 Preliminary a, adot, b, bdot, g, gdot: 0.000001 0.026639 0.000002 0.001433 0.024125 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # Chi-squared of fit: 14.91 DOF: 13 RMS: 0.23 # Min/Max residuals: -0.35 0.57 # Exact a, adot, b, bdot, g, gdot: 1.730052E-05 2.472550E-02 2.394083E-06 1.385443E-03 2.353966E-02 -3.462082E-03 # Covariance matrix: 3.3839E-13 1.7878E-10 1.1915E-14 4.2058E-12 4.9383E-11 4.7630E-09 1.7878E-10 1.1019E-06 5.2948E-11 2.2290E-08 2.2941E-07 7.6548E-06 1.1915E-14 5.2948E-11 2.5006E-13 -3.0913E-13 1.1652E-11 5.5350E-10 4.2058E-12 2.2290E-08 -3.0913E-13 4.7929E-10 4.7490E-09 1.8681E-07 4.9383E-11 2.2941E-07 1.1652E-11 4.7490E-09 5.0052E-08 2.2704E-06 4.7630E-09 7.6548E-06 5.5350E-10 1.8681E-07 2.2704E-06 2.5339E-04 # lat0 lon0 xBary yBary zBary JD0 -2.206396 60.613108 0.865749 -0.019288 -0.495865 2451810.929573 # Heliocentric elements and errors Epoch: 2451810.5000 = 2000/09/23 Mean Anomaly: 335.81969 +/- 57.023 Argument of Peri: 8.57810 +/- 123.465 Long of Asc Node: 93.93799 +/- 1.033 Inclination: 3.84666 +/- 0.102 Eccentricity: 0.28164013 +/- 0.4888 Semi-Major Axis: 56.29635307 +/- 15.0928 Time of Perihelion: 2462173.3257 +/- 24080.1 Perihelion: 40.44104087 +/- 29.5763 Aphelion: 72.15166527 +/- 33.6360 Period (y) 422.4046 +/- 169.87 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.83303033 +/- 0.1980 Ecliptic Y 37.00018237 +/- 0.3515 Ecliptic Z -1.63539673 +/- 0.0155 Ecliptic XDOT -0.00270760 +/- 0.0009 Ecliptic YDOT 0.00107102 +/- 0.0016 Ecliptic ZDOT 0.00017668 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 42.99266485 +/- 0.3188 Geocenter to KBO 42.48148914 +/- 0.4037 # Hcoef: 7.52
The following table shows the complete astrometric record for 00SF331. 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 (00SF331) followed by the observatory code and reference code for the source of the astrometry.
2000 09 23.42883 03 55 45.72 +18 07 13.3 24.2R 00SF331 568 Cc1430 2000 09 23.55431 03 55 45.48 +18 07 12.4 23.7R 00SF331 568 Cc1430 2000 09 23.62225 03 55 45.34 +18 07 11.8 24.0R 00SF331 568 Cc1430 2000 09 24.43323 03 55 43.71 +18 07 05.6 23.6R 00SF331 568 Cc1430 2000 09 24.49743 03 55 43.58 +18 07 05.5 23.2R 00SF331 568 Cc1430 2000 09 24.56052 03 55 43.45 +18 07 05.2 22.8R 00SF331 568 Cc1430 2000 11 27.35581 03 51 29.14 +17 53 34.1 23.1R 00SF331 675 Cc3849 2000 11 27.40118 03 51 28.92 +17 53 33.7 23.8R 00SF331 675 Cc3849 2000 11 27.44104 03 51 28.70 +17 53 32.9 23.5R 00SF331 675 Cc3849
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 -0.14 0.00 -0.30
2 0.0003 -3.53 0.07 -0.18 -0.29
3 0.0005 -5.61 0.05 -0.36 -0.35
4 0.0027 -29.63 -0.13 -1.65 0.00
5 0.0029 -31.46 0.02 -1.37 0.38
6 0.0031 -33.34 0.13 -1.28 0.57
7 0.1778 -3750.95 0.05 -39.18 -0.10
8 0.1779 -3754.10 0.16 -38.91 0.12
9 0.1780 -3757.34 -0.21 -39.03 -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.
00SF331 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