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 Fri Mar 29 01:09:53 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 19 observations of 19 # Arc: 7.05y # First observation: 1999/02/11 # Last observation: 2006/03/02 # Chi-squared of fit: 51.71 DOF: 32 RMS: 0.29 # Min/Max residuals: -0.67 0.71 # Exact a, adot, b, bdot, g, gdot: 1.451121E-05 2.247986E-02 2.487915E-06 2.930832E-03 2.368476E-02 2.650330E-03 # Covariance matrix: 4.3336E-13 7.0163E-15 -7.7992E-15 1.3132E-14 4.3208E-13 5.9744E-13 7.0163E-15 4.3645E-13 -3.6317E-14 6.0484E-14 4.5869E-13 2.8744E-12 -7.7992E-15 -3.6317E-14 1.4548E-13 -3.2568E-14 -4.5968E-14 -2.5247E-13 1.3132E-14 6.0484E-14 -3.2568E-14 2.1501E-14 7.6753E-14 4.2066E-13 4.3208E-13 4.5869E-13 -4.5968E-14 7.6753E-14 1.0376E-12 3.6111E-12 5.9744E-13 2.8744E-12 -2.5247E-13 4.2066E-13 3.6111E-12 1.9958E-11 # 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: 77.89604 +/- 0.034 Argument of Peri: 268.33530 +/- 0.048 Long of Asc Node: 153.05256 +/- 0.000 Inclination: 7.44504 +/- 0.000 Eccentricity: 0.11500809 +/- 0.0002 Semi-Major Axis: 43.67749941 +/- 0.0052 Time of Perihelion: 2428406.6838 +/- 10.7 Perihelion: 38.65423341 +/- 0.0095 Aphelion: 48.70076541 +/- 0.0101 Period (y) 288.6655 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -38.29765575 +/- 0.0016 Ecliptic Y 19.97130850 +/- 0.0008 Ecliptic Z -0.05846682 +/- 0.0000 Ecliptic XDOT -0.00146634 +/- 0.0000 Ecliptic YDOT -0.00215929 +/- 0.0000 Ecliptic ZDOT 0.00033837 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.19213691 +/- 0.0015 Geocenter to KBO 42.22120146 +/- 0.0018 # Hcoef: 7.70
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
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 0.06 0.00 -0.14 2 0.0002 0.00 -0.20 0.00 0.36 3 0.0686 0.00 0.35 0.00 0.11 4 0.0687 0.00 0.71 0.00 0.12 5 0.1531 0.00 -0.07 0.00 -0.21 6 0.1532 0.00 -0.12 0.00 -0.46 7 1.1960 0.00 -0.30 0.00 0.21 8 1.1962 0.00 -0.22 0.00 0.07 9 1.1987 0.00 -0.02 0.00 -0.34 10 1.1991 0.00 -0.25 0.00 -0.11 11 1.2289 0.00 -0.16 0.00 0.02 12 1.2290 0.00 -0.44 0.00 0.14 13 2.1131 0.00 0.38 0.00 0.13 14 2.1134 0.00 0.35 0.00 0.13 15 6.8036 0.00 -0.15 0.00 -0.12 16 6.8038 0.00 -0.07 0.00 0.41 17 6.8063 0.00 -0.30 0.00 0.14 18 7.0528 0.00 -0.07 0.00 0.21 19 7.0529 0.00 0.54 0.00 -0.67
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 43.791 43.791 43.791 ecceobj 0.116 0.116 0.116 incobj 7.438 7.438 7.438 qmin 37.491 37.417 37.476 qmax 50.675 50.732 50.801 amean 43.924 43.924 43.923 amin 43.544 43.553 43.547 amax 44.349 44.332 44.346 emean 0.125 0.125 0.125 emin 0.106 0.106 0.106 emax 0.144 0.145 0.146 imean 7.248 7.248 7.248 imin 6.273 6.274 6.273 imax 8.181 8.174 8.184 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 178.3 178.3 178.2 kozaiamp 179.9 180.0 180.0