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: 00SK331 # Created Wed Nov 27 02:08:07 2024 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 1.14y # First observation: 2000/09/23 # Last observation: 2001/11/15 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.019786 0.000001 0.000693 0.021932 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 6.87 DOF: 15 RMS: 0.15 # Min/Max residuals: -0.30 0.25 # Exact a, adot, b, bdot, g, gdot: 1.305363E-05 1.969795E-02 1.490582E-06 6.902670E-04 2.185023E-02 4.698432E-03 # Covariance matrix: 6.4710E-13 8.6887E-11 2.4759E-14 3.0794E-12 9.5502E-11 4.0355E-09 8.6887E-11 1.9553E-08 5.3642E-12 7.0596E-10 2.0807E-08 9.6196E-07 2.4759E-14 5.3642E-12 2.4663E-13 -2.5333E-14 5.8819E-12 2.4849E-10 3.0794E-12 7.0596E-10 -2.5333E-14 2.6262E-11 7.3810E-10 3.5900E-08 9.5502E-11 2.0807E-08 5.8819E-12 7.3810E-10 2.2708E-08 9.7345E-07 4.0355E-09 9.6196E-07 2.4849E-10 3.5900E-08 9.7345E-07 5.1789E-05 # lat0 lon0 xBary yBary zBary JD0 -1.993550 61.570062 0.873524 -0.016960 -0.482088 2451810.974473 # Heliocentric elements and errors Epoch: 2451810.5000 = 2000/09/23 Mean Anomaly: 73.80531 +/- 42.263 Argument of Peri: 216.30834 +/- 15.711 Long of Asc Node: 105.74511 +/- 0.296 Inclination: 2.77523 +/- 0.015 Eccentricity: 0.21348192 +/- 0.3446 Semi-Major Axis: 46.96080036 +/- 7.3734 Time of Perihelion: 2427712.1798 +/- 12578.1 Perihelion: 36.93551843 +/- 17.1917 Aphelion: 56.98608228 +/- 18.4927 Period (y) 321.8188 +/- 75.79 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.77803331 +/- 0.1502 Ecliptic Y 40.23544752 +/- 0.2774 Ecliptic Z -1.59199013 +/- 0.0110 Ecliptic XDOT -0.00189642 +/- 0.0004 Ecliptic YDOT 0.00170016 +/- 0.0008 Ecliptic ZDOT 0.00006612 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.26299245 +/- 0.2523 Geocenter to KBO 45.76610546 +/- 0.3156 # Hcoef: 7.89
The following table shows the complete astrometric record for 00SK331. 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 (00SK331) followed by the observatory code and reference code for the source of the astrometry.
2000 09 23.47373 03 59 31.58 +18 31 21.0 24.3R 00SK331 568 Cc1430 2000 09 23.52979 03 59 31.43 +18 31 20.7 00SK331 568 Cc1430 2000 09 23.61053 03 59 31.30 +18 31 20.0 24.4R 00SK331 568 Cc1430 2000 09 24.48641 03 59 29.62 +18 31 13.8 24.0R 00SK331 568 Cc1430 2000 09 24.54793 03 59 29.49 +18 31 13.2 24.1R 00SK331 568 Cc1430 2000 09 24.61033 03 59 29.37 +18 31 12.6 24.3R 00SK331 568 Cc1430 2001 11 14.11472 04 01 11.63 +18 37 38.1 24.2R 00SK331 309 Ce3523 2001 11 14.14980 04 01 11.46 +18 37 37.7 24.3R 00SK331 309 Ce3523 2001 11 15.12821 04 01 06.97 +18 37 25.1 24.3R 00SK331 309 Ce3523 2001 11 15.16771 04 01 06.77 +18 37 24.5 24.2R 00SK331 309 Ce3523
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 0.25 0.00 -0.20
2 0.0002 -2.15 -0.30 0.13 0.01
3 0.0004 -4.10 0.07 -0.18 -0.17
4 0.0028 -28.75 0.04 -1.49 0.25
5 0.0029 -30.69 -0.06 -1.71 0.13
6 0.0031 -32.48 0.02 -1.95 -0.02
7 1.1407 1469.15 0.04 87.09 -0.18
8 1.1408 1466.70 -0.04 87.17 -0.11
9 1.1435 1401.65 0.12 87.43 0.16
10 1.1436 1398.74 -0.11 87.40 0.12
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.
00SK331 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