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: 99CN153 # Created Wed Dec 25 02:07:56 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 19.98y # First observation: 1999/02/11 # Last observation: 2019/02/04 # Chi-squared of fit: 68.46 DOF: 40 RMS: 0.30 # Min/Max residuals: -0.88 0.84 # Exact a, adot, b, bdot, g, gdot: 1.493673E-05 2.248183E-02 1.978840E-06 2.931293E-03 2.368718E-02 2.664315E-03 # Covariance matrix: 3.9858E-13 -9.9847E-14 1.4810E-14 -1.0288E-14 2.8399E-13 -1.7057E-13 -9.9847E-14 4.1356E-14 -6.7503E-15 4.7918E-15 -6.4690E-14 7.9338E-14 1.4810E-14 -6.7503E-15 1.0697E-13 -7.6415E-15 9.4402E-15 -1.3478E-14 -1.0288E-14 4.7918E-15 -7.6415E-15 1.7794E-15 -6.3098E-15 9.6059E-15 2.8399E-13 -6.4690E-14 9.4402E-15 -6.3098E-15 3.3704E-13 -1.0487E-13 -1.7057E-13 7.9338E-14 -1.3478E-14 9.6059E-15 -1.0487E-13 1.5901E-13 # lat0 lon0 xBary yBary zBary JD0 -0.079486 152.695933 0.175322 -0.001580 -0.977930 2451220.913553 # Heliocentric elements and errors Epoch: 2451220.5000 = 1999/02/11 Mean Anomaly: 77.88232 +/- 0.033 Argument of Peri: 268.28012 +/- 0.042 Long of Asc Node: 153.05274 +/- 0.000 Inclination: 7.44553 +/- 0.000 Eccentricity: 0.11560240 +/- 0.0000 Semi-Major Axis: 43.67386059 +/- 0.0049 Time of Perihelion: 2428413.5516 +/- 10.4 Perihelion: 38.62505746 +/- 0.0044 Aphelion: 48.72266373 +/- 0.0055 Period (y) 288.6294 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -38.29382845 +/- 0.0009 Ecliptic Y 19.96931259 +/- 0.0005 Ecliptic Z -0.05848234 +/- 0.0000 Ecliptic XDOT -0.00146773 +/- 0.0000 Ecliptic YDOT -0.00215853 +/- 0.0000 Ecliptic ZDOT 0.00033838 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.18782008 +/- 0.0008 Geocenter to KBO 42.21688468 +/- 0.0010 # Hcoef: 7.93
The following table shows the complete astrometric record for 99CN153. 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 (99CN153) followed by the observatory code and reference code for the source of the astrometry.
1999 02 11.41281 10 18 30.55 +10 26 21.2 23.7R 99CN153 568 Ca4208 1999 02 11.49065 10 18 30.18 +10 26 23.8 23.7R 99CN153 568 Ca4208 1999 03 08.45703 10 16 38.18 +10 37 42.8 23.7R 99CN153 568 Ca4208 1999 03 08.48726 10 16 38.07 +10 37 43.6 23.7R 99CN153 568 Ca4208 1999 04 08.34821 10 14 43.29 +10 49 26.0 23.8R 99CN153 568 Ca4507 1999 04 08.38444 10 14 43.18 +10 49 26.4 23.8R 99CN153 568 Ca4507 2000 04 23.254927 10 19 11.36 +10 35 16.9 99CN153 568 C~5H3X 2000 04 23.342508 10 19 11.20 +10 35 17.8 99CN153 568 C~5H3X 2000 04 24.239864 10 19 09.64 +10 35 27.8 99CN153 568 C~5H3X 2000 04 24.387073 10 19 09.36 +10 35 29.7 99CN153 568 C~5H3X 2000 05 05.271028 10 18 55.53 +10 37 05.6 99CN153 568 C~5H3X 2000 05 05.317455 10 18 55.47 +10 37 06.0 99CN153 568 C~5H3X 2001 03 24.20836 10 25 43.11 +10 07 42.7 23.6R 99CN153 695 C~5H3X 2001 03 24.33110 10 25 42.63 +10 07 45.6 99CN153 695 C~5H3X 2005 12 01.420804 10 55 49.87 +07 55 55.7 99CN153 695 C~5H3X 2005 12 01.497672 10 55 49.95 +07 55 56.0 99CN153 695 C~5H3X 2005 12 02.417677 10 55 50.85 +07 55 53.1 99CN153 695 C~5H3X 2006 03 02.435810 10 52 13.92 +08 22 10.1 99CN153 695 C~5H3X 2006 03 02.487830 10 52 13.73 +08 22 10.7 99CN153 695 C~5H3X 2019 02 04.57743 11 54 55.16 +03 50 03.2 25.4g 99CN153 T09 C~811J 2019 02 04.59943 11 54 55.09 +03 50 03.9 25.7g 99CN153 T09 C~811J 2019 02 04.63313 11 54 54.99 +03 50 04.2 25.1g 99CN153 T09 C~811J 2019 02 04.64363 11 54 54.95 +03 50 04.4 25.2g 99CN153 T09 C~811J
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 0.01 0.00 -0.01
2 0.0002 0.00 -0.25 0.00 0.49
3 0.0686 0.00 0.48 0.00 0.17
4 0.0687 0.00 0.84 0.00 0.17
5 0.1531 0.00 0.23 0.00 -0.23
6 0.1532 0.00 0.18 0.00 -0.47
7 1.1960 0.00 -0.33 0.00 0.22
8 1.1962 0.00 -0.26 0.00 0.09
9 1.1987 0.00 -0.05 0.00 -0.33
10 1.1991 0.00 -0.28 0.00 -0.09
11 1.2289 0.00 -0.18 0.00 0.03
12 1.2290 0.00 -0.45 0.00 0.14
13 2.1131 0.00 -0.02 0.00 0.22
14 2.1134 0.00 -0.06 0.00 0.22
15 6.8036 0.00 -0.18 0.00 -0.27
16 6.8038 0.00 -0.11 0.00 0.26
17 6.8063 0.00 -0.33 0.00 -0.02
18 7.0528 0.00 0.05 0.00 -0.00
19 7.0529 0.00 0.66 0.00 -0.88
20 19.9813 0.00 0.13 0.00 0.18
21 19.9813 0.00 0.04 0.00 0.37
22 19.9814 0.00 0.01 0.00 -0.10
23 19.9815 0.00 -0.14 0.00 -0.14
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.
99CN153 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.788 43.788 43.787 ecceobj 0.117 0.117 0.117 incobj 7.439 7.439 7.439 qmin 37.403 37.429 37.373 qmax 50.678 50.688 50.719 amean 43.920 43.920 43.920 amin 43.541 43.533 43.535 amax 44.344 44.314 44.330 emean 0.126 0.126 0.126 emin 0.106 0.106 0.106 emax 0.145 0.144 0.145 imean 7.254 7.254 7.254 imin 6.273 6.272 6.272 imax 8.200 8.202 8.200 excite_mean 0.178 0.178 0.178 fracstop 1.000 1.000 1.000 cjmean 3.062 3.062 3.062 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 178.2 178.2 178.3 kozaiamp 180.0 180.0 179.9