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: 02CQ154
# Created Sun Dec 22 02:08:20 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 24
# Arc: 17.08y
# First observation: 2002/02/06
# Last observation: 2019/03/08
# Chi-squared of fit: 31.60 DOF: 42 RMS: 0.20
# Min/Max residuals: -0.42 0.58
# Exact a, adot, b, bdot, g, gdot:
1.580670E-05 2.307695E-02 2.375931E-06 1.236294E-03 2.376085E-02 -8.794584E-04
# Covariance matrix:
3.7851E-13 1.8908E-13 -9.5397E-16 1.0716E-14 5.1846E-13 4.8477E-13
1.8908E-13 3.5239E-13 -1.7737E-15 1.9120E-14 5.7537E-13 8.6775E-13
-9.5397E-16 -1.7737E-15 1.8470E-13 -1.1280E-14 -2.7682E-15 -4.3868E-15
1.0716E-14 1.9120E-14 -1.1280E-14 2.0200E-15 3.0876E-14 4.7237E-14
5.1846E-13 5.7537E-13 -2.7682E-15 3.0876E-14 1.3978E-12 1.3975E-12
4.8477E-13 8.6775E-13 -4.3868E-15 4.7237E-14 1.3975E-12 2.1440E-12
# lat0 lon0 xBary yBary zBary JD0
0.929131 155.876946 0.308012 0.015061 -0.933731 2452311.840043
# Heliocentric elements and errors
Epoch: 2452312.5000 = 2002/02/07
Mean Anomaly: 312.25854 +/- 0.065
Argument of Peri: 69.15008 +/- 0.072
Long of Asc Node: 138.98430 +/- 0.001
Inclination: 3.20223 +/- 0.000
Eccentricity: 0.05523442 +/- 0.0001
Semi-Major Axis: 44.59979727 +/- 0.0075
Time of Perihelion: 2466739.9953 +/- 30.9
Perihelion: 42.13635353 +/- 0.0087
Aphelion: 47.06324102 +/- 0.0094
Period (y) 297.8568 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.13106519 +/- 0.0019
Ecliptic Y 17.86595059 +/- 0.0009
Ecliptic Z 0.68256214 +/- 0.0000
Ecliptic XDOT -0.00100067 +/- 0.0000
Ecliptic YDOT -0.00246987 +/- 0.0000
Ecliptic ZDOT 0.00014100 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.02209555 +/- 0.0018
Geocenter to KBO 42.08609923 +/- 0.0021
# Hcoef: 6.84
The following table shows the complete astrometric record for 02CQ154. 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 (02CQ154) followed by the observatory code and reference code for the source of the astrometry.
2002 02 06.33930 10 32 02.86 +10 13 11.7 22.4R 02CQ154 695 Cf0336 2002 02 06.43463 10 32 02.45 +10 13 14.4 02CQ154 695 Cf0336 2002 02 07.34349 10 31 58.62 +10 13 38.2 02CQ154 695 Cf0336 2002 03 15.07305 10 29 19.90 +10 29 31.5 02CQ154 950 Cf2717 2002 03 15.11090 10 29 19.73 +10 29 32.6 02CQ154 950 Cf2717 2002 03 15.29130 10 29 18.95 +10 29 37.3 22.0R 02CQ154 662 Cf2717 2002 03 15.36235 10 29 18.67 +10 29 38.7 02CQ154 662 Cf2717 2002 03 18.27326 10 29 06.50 +10 30 50.8 22.8R 02CQ154 695 Ch1599 2002 03 20.29641 10 28 58.16 +10 31 40.0 02CQ154 695 Ch1599 2018 03 18.46645 11 50 45.72 +03 11 09.0 22.9i 02CQ154 T09 C~83G9 2018 03 18.50838 11 50 45.53 +03 11 10.2 22.9i 02CQ154 T09 C~83G9 2018 03 18.56536 11 50 45.25 +03 11 11.9 22.6i 02CQ154 T09 C~83G9 2018 03 18.58138 11 50 45.21 +03 11 12.2 22.6i 02CQ154 T09 C~83G9 2018 04 12.118960 11 49 00.540 +03 22 30.61 23.1V 02CQ154 W84 C~8GhS 2018 04 13.116683 11 48 56.628 +03 22 55.24 24.2V 02CQ154 W84 C~8GhS 2018 04 24.40415 11 48 15.52 +03 27 09.9 22.6z 02CQ154 T09 C~83G9 2018 04 24.44791 11 48 15.38 +03 27 11.1 22.9z 02CQ154 T09 C~83G9 2018 04 24.49071 11 48 15.22 +03 27 11.6 22.7z 02CQ154 T09 C~83G9 2019 03 02.52148 11 57 02.84 +02 33 54.9 22.7y 02CQ154 T09 C~83G9 2019 03 02.56189 11 57 02.67 +02 33 56.6 23.3y 02CQ154 T09 C~83G9 2019 03 02.56456 11 57 02.67 +02 33 56.1 22.7y 02CQ154 T09 C~83G9 2019 03 08.36231 11 56 37.99 +02 36 45.3 23.2r 02CQ154 T09 C~83G9 2019 03 08.39592 11 56 37.87 +02 36 46.3 23.4r 02CQ154 T09 C~83G9 2019 03 08.40641 11 56 37.83 +02 36 46.6 23.2r 02CQ154 T09 C~83G9
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 -0.21 0.00 -0.26
2 0.0003 0.00 -0.19 0.00 -0.05
3 0.0027 0.00 0.25 0.00 -0.01
4 0.1006 0.00 -0.00 0.00 -0.21
5 0.1007 0.00 -0.10 0.00 -0.05
6 0.1012 0.00 -0.42 0.00 0.16
7 0.1014 0.00 -0.02 0.00 -0.21
8 0.1093 0.00 0.54 0.00 0.09
9 0.1149 0.00 0.11 0.00 0.58
10 16.1099 0.00 0.05 0.00 -0.06
11 16.1100 0.00 0.03 0.00 -0.09
12 16.1101 0.00 -0.32 0.00 -0.07
13 16.1102 0.00 0.16 0.00 -0.24
14 16.1774 0.00 -0.13 0.00 0.05
15 16.1801 0.00 -0.13 0.00 0.04
16 16.2110 0.00 0.02 0.00 -0.09
17 16.2111 0.00 0.17 0.00 0.21
18 16.2112 0.00 -0.04 0.00 -0.16
19 17.0655 0.00 -0.01 0.00 -0.12
20 17.0656 0.00 0.01 0.00 0.42
21 17.0656 0.00 0.18 0.00 -0.16
22 17.0815 0.00 -0.33 0.00 0.08
23 17.0816 0.00 0.09 0.00 0.09
24 17.0816 0.00 0.18 0.00 0.08
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.
02CQ154 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.291 44.291 44.291 ecceobj 0.051 0.051 0.051 incobj 3.209 3.209 3.209 qmin 41.429 41.417 41.448 qmax 47.670 47.648 47.686 amean 44.463 44.463 44.463 amin 44.119 44.118 44.115 amax 44.827 44.828 44.828 emean 0.050 0.050 0.050 emin 0.035 0.035 0.035 emax 0.064 0.064 0.064 imean 2.392 2.392 2.392 imin 1.837 1.837 1.837 imax 3.000 3.000 3.000 excite_mean 0.065 0.065 0.065 fracstop 1.000 1.000 1.000 cjmean 3.102 3.102 3.102 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 184.7 184.6 184.6 kozaiamp 180.0 180.0 180.0