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: 00WM183 # Created Sun Nov 24 02:08:07 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 24 observations of 24 # Arc: 22.08y # First observation: 2000/11/26 # Last observation: 2022/12/26 # Chi-squared of fit: 120.59 DOF: 42 RMS: 0.40 # Min/Max residuals: -0.72 2.19 # Exact a, adot, b, bdot, g, gdot: 1.551785E-05 1.702006E-02 5.186717E-07 2.121836E-03 2.044330E-02 -5.163708E-04 # Covariance matrix: 1.1198E-13 -1.7816E-14 1.1316E-15 -1.5367E-15 2.8815E-14 -3.6407E-14 -1.7816E-14 1.5465E-14 -1.4516E-15 1.8626E-15 -8.1273E-15 4.4045E-14 1.1316E-15 -1.4516E-15 1.0088E-13 -6.2247E-15 2.2649E-16 -4.3808E-15 -1.5367E-15 1.8626E-15 -6.2247E-15 1.1721E-15 -1.3981E-15 5.6566E-15 2.8815E-14 -8.1273E-15 2.2649E-16 -1.3981E-15 2.9499E-13 -3.3945E-14 -3.6407E-14 4.4045E-14 -4.3808E-15 5.6566E-15 -3.3945E-14 1.3379E-13 # lat0 lon0 xBary yBary zBary JD0 -2.260291 64.002508 -0.005015 -0.038797 -0.979692 2451874.628143 # Heliocentric elements and errors Epoch: 2451874.5000 = 2000/11/26 Mean Anomaly: 197.72474 +/- 0.026 Argument of Peri: 148.15486 +/- 0.012 Long of Asc Node: 81.28541 +/- 0.000 Inclination: 7.42130 +/- 0.000 Eccentricity: 0.10657541 +/- 0.0001 Semi-Major Axis: 45.26552177 +/- 0.0042 Time of Perihelion: 2502016.2557 +/- 11.7 Perihelion: 40.44133038 +/- 0.0050 Aphelion: 50.08971316 +/- 0.0057 Period (y) 304.5506 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.85416446 +/- 0.0006 Ecliptic Y 44.82050758 +/- 0.0012 Ecliptic Z -1.92921139 +/- 0.0001 Ecliptic XDOT -0.00208203 +/- 0.0000 Ecliptic YDOT 0.00095150 +/- 0.0000 Ecliptic ZDOT 0.00028684 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 49.90196571 +/- 0.0011 Geocenter to KBO 48.91583553 +/- 0.0013 # Hcoef: 7.19
The following table shows the complete astrometric record for 00WM183. 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 (00WM183) followed by the observatory code and reference code for the source of the astrometry.
2000 11 26.12740 04 09 48.73 +18 43 38.3 23.7R 00WM183 809 Cc4044 2000 11 26.18511 04 09 48.49 +18 43 37.9 23.7R 00WM183 809 Cc4044 2000 11 26.23903 04 09 48.41 +18 43 37.2 23.5R 00WM183 809 Cc4044 2000 11 27.12684 04 09 44.31 +18 43 27.6 23.4R 00WM183 809 Cc4044 2000 11 27.18142 04 09 44.08 +18 43 27.4 23.9R 00WM183 809 Cc4044 2000 11 27.21127 04 09 43.96 +18 43 26.8 23.5R 00WM183 809 Cc4044 2000 11 27.23691 04 09 43.81 +18 43 26.7 23.8R 00WM183 809 Cc4044 2000 11 27.26212 04 09 43.72 +18 43 26.4 23.5R 00WM183 809 Cc4044 2001 01 23.15625 04 06 21.86 +18 36 50.9 00WM183 675 Cc6726 2001 01 23.24722 04 06 21.69 +18 36 50.1 00WM183 675 Cc6726 2001 11 14.22891 04 14 40.89 +19 03 33.7 24.0R 00WM183 309 Ce3553 2001 11 14.27014 04 14 40.70 +19 03 33.3 23.7R 00WM183 309 Ce3553 2001 11 15.27272 04 14 36.38 +19 03 22.7 23.8R 00WM183 309 Ce3553 2001 11 15.30503 04 14 36.22 +19 03 22.3 24.2R 00WM183 309 Ce3553 2001 12 13.05384 04 12 34.32 +18 58 46.7 00WM183 950 Ce3553 2001 12 13.10421 04 12 34.09 +18 58 46.1 00WM183 950 Ce3553 2014 10 22.38901 05 09 20.43 +22 25 21.1 23.3R 00WM183 G37 C~1BxA 2014 10 22.48107 05 09 20.17 +22 25 20.9 00WM183 G37 C~1BxA 2015 11 08.38330 05 12 39.50 +22 37 17.5 24.9R 00WM183 G37 C~1dc0 2015 11 08.43266 05 12 39.34 +22 37 17.3 00WM183 G37 C~1dc0 2016 02 04.13055 05 06 46.27 +22 32 12.1 23.6R 00WM183 G37 C~1luu 2016 02 04.21910 05 06 46.07 +22 32 11.9 00WM183 G37 C~1luu 2022 12 26.297420 05 39 21.439 +23 55 07.63 24.0G 00WM183 G37 C~69X1 2022 12 26.352360 05 39 21.123 +23 55 07.57 00WM183 G37 C~69X1
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 -0.55 0.00 0.14
2 0.0002 0.00 -0.25 0.00 0.34
3 0.0003 0.00 2.19 0.00 0.21
4 0.0027 0.00 -0.36 0.00 -0.05
5 0.0029 0.00 -0.12 0.00 0.32
6 0.0030 0.00 0.09 0.00 0.04
7 0.0030 0.00 -0.42 0.00 0.21
8 0.0031 0.00 -0.07 0.00 0.18
9 0.1589 0.00 -0.02 0.00 -0.07
10 0.1591 0.00 0.15 0.00 -0.72
11 0.9667 0.00 -0.02 0.00 0.00
12 0.9669 0.00 -0.16 0.00 0.03
13 0.9696 0.00 -0.00 0.00 -0.20
14 0.9697 0.00 -0.27 0.00 -0.26
15 1.0457 0.00 -0.16 0.00 -0.03
16 1.0458 0.00 -0.35 0.00 -0.17
17 13.9035 0.00 0.14 0.00 0.05
18 13.9038 0.00 0.17 0.00 0.09
19 14.9494 0.00 -0.32 0.00 -0.10
20 14.9495 0.00 0.12 0.00 -0.14
21 15.1896 0.00 0.02 0.00 -0.01
22 15.1898 0.00 0.11 0.00 -0.09
23 22.0812 0.00 0.36 0.00 0.09
24 22.0814 0.00 -0.46 0.00 0.09
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.
00WM183 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.233 45.233 45.233 ecceobj 0.107 0.107 0.107 incobj 7.426 7.426 7.426 qmin 39.301 39.296 39.306 qmax 51.005 51.009 50.996 amean 44.989 44.989 44.989 amin 44.611 44.611 44.611 amax 45.401 45.400 45.400 emean 0.109 0.109 0.109 emin 0.095 0.095 0.096 emax 0.124 0.124 0.124 imean 5.611 5.611 5.611 imin 5.065 5.065 5.065 imax 6.253 6.253 6.254 excite_mean 0.147 0.147 0.147 fracstop 1.000 1.000 1.000 cjmean 3.087 3.087 3.087 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 186.4 186.5 186.4 kozaiamp 179.9 180.0 180.0