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: 07CJ66
# Created Fri Apr 26 01:12:53 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 35 observations of 35
# Arc: 17.85y
# First observation: 2001/03/25
# Last observation: 2019/01/28
# Chi-squared of fit: 40.69 DOF: 64 RMS: 0.19
# Min/Max residuals: -0.46 0.41
# Exact a, adot, b, bdot, g, gdot:
1.730451E-05 2.276333E-02 1.230099E-06 1.165081E-03 2.360858E-02 1.490755E-04
# Covariance matrix:
4.2749E-13 -1.0626E-13 1.2768E-14 -4.2137E-15 -6.7584E-14 -1.9572E-13
-1.0626E-13 3.3081E-14 -4.2427E-15 1.4100E-15 2.1531E-15 6.4980E-14
1.2768E-14 -4.2427E-15 1.4746E-13 -2.2535E-14 -7.2554E-16 -9.7426E-15
-4.2137E-15 1.4100E-15 -2.2535E-14 4.7882E-15 1.8525E-16 3.2347E-15
-6.7584E-14 2.1531E-15 -7.2554E-16 1.8525E-16 1.1616E-13 1.1434E-14
-1.9572E-13 6.4980E-14 -9.7426E-15 3.2347E-15 1.1434E-14 1.4923E-13
# lat0 lon0 xBary yBary zBary JD0
0.799159 126.885243 -0.848963 0.007264 -0.531653 2451993.654843
# Heliocentric elements and errors
Epoch: 2451994.5000 = 2001/03/26
Mean Anomaly: 58.20004 +/- 0.062
Argument of Peri: 313.64517 +/- 0.067
Long of Asc Node: 112.86223 +/- 0.001
Inclination: 3.01703 +/- 0.000
Eccentricity: 0.03343353 +/- 0.0000
Semi-Major Axis: 43.63182122 +/- 0.0026
Time of Perihelion: 2434975.8859 +/- 18.1
Perihelion: 42.17305556 +/- 0.0029
Aphelion: 45.09058687 +/- 0.0030
Period (y) 288.2128 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -26.41589408 +/- 0.0004
Ecliptic Y 33.79636068 +/- 0.0005
Ecliptic Z 0.59084566 +/- 0.0000
Ecliptic XDOT -0.00212902 +/- 0.0000
Ecliptic YDOT -0.00156925 +/- 0.0000
Ecliptic ZDOT 0.00013553 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.89919523 +/- 0.0004
Geocenter to KBO 42.35752074 +/- 0.0006
# Hcoef: 7.07
The following table shows the complete astrometric record for 07CJ66. 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 (07CJ66) followed by the observatory code and reference code for the source of the astrometry.
2001 03 25.15410 08 37 58.41 +19 19 29.4 25.0R 07CJ66 695 C~63SM 2001 03 25.24212 08 37 58.25 +19 19 30.5 07CJ66 695 C~63SM 2003 04 25.262273 08 48 13.66 +18 48 18.7 07CJ66 T14 C~63SM 2003 04 25.280467 08 48 13.65 +18 48 18.6 07CJ66 T14 C~63SM 2003 04 25.298957 08 48 13.66 +18 48 18.7 07CJ66 T14 C~63SM 2004 12 20.468414 09 06 08.90 +17 42 04.4 07CJ66 645 C~63SM 2004 12 20.469243 09 06 08.91 +17 42 04.4 07CJ66 645 C~63SM 2004 12 20.471731 09 06 08.91 +17 42 04.1 07CJ66 645 C~63SM 2005 01 17.402805 09 04 17.10 +17 50 45.0 07CJ66 645 C~63SM 2005 01 17.403635 09 04 17.11 +17 50 45.3 07CJ66 645 C~63SM 2005 01 19.418951 09 04 07.72 +17 51 27.8 07CJ66 645 C~63SM 2005 02 04.214558 09 02 51.63 +17 57 04.6 07CJ66 645 C~63SM 2005 02 04.215387 09 02 51.64 +17 57 04.8 07CJ66 645 C~63SM 2005 02 04.217875 09 02 51.61 +17 57 04.4 07CJ66 645 C~63SM 2005 02 10.295915 09 02 22.12 +17 59 12.6 23.6g 07CJ66 T14 C~63SM 2005 02 10.378913 09 02 21.73 +17 59 14.3 07CJ66 T14 C~63SM 2005 02 10.418324 09 02 21.52 +17 59 15.1 07CJ66 T14 C~63SM 2005 04 11.281590 08 58 58.54 +18 13 08.5 22.8i 07CJ66 T14 C~63SM 2005 04 11.307559 08 58 58.50 +18 13 08.5 07CJ66 T14 C~63SM 2005 04 11.337160 08 58 58.47 +18 13 08.7 07CJ66 T14 C~63SM 2005 11 07.561771 09 12 19.03 +17 17 32.2 22.4z 07CJ66 T14 C~63SM 2005 12 04.490454 09 12 06.49 +17 19 28.3 07CJ66 T14 C~63SM 2006 02 03.456822 09 08 18.04 +17 37 44.9 22.9r 07CJ66 T14 C~63SM 2006 02 06.306774 09 08 04.24 +17 38 46.8 07CJ66 T14 C~63SM 2006 02 06.346460 09 08 04.04 +17 38 47.9 07CJ66 T14 C~63SM 2006 02 06.387302 09 08 03.85 +17 38 48.7 07CJ66 T14 C~63SM 2007 02 14.44935 09 12 46.00 +17 22 12.9 23.6r 07CJ66 568 C~00AJ 2007 02 14.48689 09 12 45.82 +17 22 13.7 23.3r 07CJ66 568 C~00AJ 2007 02 14.52049 09 12 45.67 +17 22 14.4 23.5r 07CJ66 568 C~00AJ 2007 02 15.46373 09 12 41.18 +17 22 34.7 23.3r 07CJ66 568 C~00AJ 2008 05 04.257104 09 14 35.12 +17 17 12.7 07CJ66 T14 C~63SM 2008 05 04.259750 09 14 35.12 +17 17 12.6 07CJ66 T14 C~63SM 2008 05 05.263789 09 14 35.74 +17 17 08.8 07CJ66 T14 C~63SM 2008 05 05.266437 09 14 35.75 +17 17 08.8 07CJ66 T14 C~63SM 2019 01 28.261482 10 16 00.83 +12 47 20.6 22.6i 07CJ66 W84 C~63SM
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 -0.46 0.00 0.02
2 0.0002 0.00 0.24 0.00 0.41
3 2.0838 0.00 0.24 0.00 -0.04
4 2.0839 0.00 0.03 0.00 -0.10
5 2.0839 0.00 0.12 0.00 0.04
6 3.7408 0.00 -0.14 0.00 0.17
7 3.7408 0.00 0.05 0.00 0.16
8 3.7408 0.00 0.17 0.00 -0.18
9 3.8172 0.00 -0.24 0.00 -0.40
10 3.8172 0.00 -0.03 0.00 -0.11
11 3.8228 0.00 0.14 0.00 0.05
12 3.8660 0.00 0.11 0.00 -0.12
13 3.8660 0.00 0.32 0.00 0.06
14 3.8660 0.00 0.05 0.00 -0.40
15 3.8827 0.00 -0.34 0.00 -0.18
16 3.8829 0.00 -0.10 0.00 -0.22
17 3.8830 0.00 -0.35 0.00 -0.25
18 4.0469 0.00 0.07 0.00 0.07
19 4.0470 0.00 -0.03 0.00 -0.04
20 4.0470 0.00 0.09 0.00 0.04
21 4.6226 0.00 0.41 0.00 0.09
22 4.6963 0.00 -0.12 0.00 -0.22
23 4.8633 0.00 -0.12 0.00 0.01
24 4.8711 0.00 0.05 0.00 -0.01
25 4.8712 0.00 -0.03 0.00 0.22
26 4.8713 0.00 0.14 0.00 0.13
27 5.8927 0.00 -0.29 0.00 0.06
28 5.8928 0.00 -0.26 0.00 0.05
29 5.8929 0.00 -0.08 0.00 0.04
30 5.8954 0.00 -0.31 0.00 0.10
31 7.1105 0.00 0.11 0.00 0.14
32 7.1105 0.00 0.09 0.00 0.05
33 7.1132 0.00 0.14 0.00 0.24
34 7.1132 0.00 0.27 0.00 0.25
35 17.8456 0.00 -0.01 0.00 -0.11
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.
07CJ66 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.461 43.461 43.461 ecceobj 0.032 0.032 0.032 incobj 3.020 3.020 3.020 qmin 40.826 40.811 40.826 qmax 46.309 46.281 46.306 amean 43.462 43.462 43.462 amin 43.119 43.119 43.130 amax 43.804 43.804 43.812 emean 0.041 0.041 0.041 emin 0.023 0.023 0.023 emax 0.057 0.057 0.057 imean 1.859 1.859 1.859 imin 0.935 0.935 0.935 imax 2.584 2.584 2.583 excite_mean 0.053 0.053 0.053 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 3.092 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 175.5 175.5 175.5 kozaiamp 179.9 179.9 180.0