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: 19CJ30
# Created Wed Dec 25 02:10:59 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 22 observations of 22
# Arc: 17.40y
# First observation: 2003/12/23
# Last observation: 2021/05/16
# Chi-squared of fit: 12.05 DOF: 38 RMS: 0.13
# Min/Max residuals: -0.32 0.36
# Exact a, adot, b, bdot, g, gdot:
1.436660E-05 2.042418E-02 7.286662E-08 3.267328E-04 2.232244E-02 -2.245459E-04
# Covariance matrix:
4.8946E-13 -6.5356E-14 2.7395E-16 -5.5315E-16 -3.2763E-14 -1.0283E-13
-6.5356E-14 8.9343E-14 -6.1872E-16 1.5096E-15 2.7779E-14 2.7411E-13
2.7395E-16 -6.1872E-16 4.7416E-13 -3.1306E-14 -5.4916E-16 -1.8774E-15
-5.5315E-16 1.5096E-15 -3.1306E-14 2.3917E-15 6.0475E-17 4.8445E-15
-3.2763E-14 2.7779E-14 -5.4916E-16 6.0475E-17 2.5180E-13 3.7433E-14
-1.0283E-13 2.7411E-13 -1.8774E-15 4.8445E-15 3.7433E-14 8.7421E-13
# lat0 lon0 xBary yBary zBary JD0
1.646836 156.654781 0.893494 0.011689 -0.404209 2452997.016700
# Heliocentric elements and errors
Epoch: 2452996.5000 = 2003/12/23
Mean Anomaly: 222.42054 +/- 0.061
Argument of Peri: 200.83261 +/- 0.055
Long of Asc Node: 95.70639 +/- 0.004
Inclination: 1.88740 +/- 0.000
Eccentricity: 0.04624969 +/- 0.0001
Semi-Major Axis: 43.68346828 +/- 0.0037
Time of Perihelion: 2493298.3699 +/- 19.7
Perihelion: 41.66312123 +/- 0.0045
Aphelion: 45.70381533 +/- 0.0048
Period (y) 288.7247 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.13440646 +/- 0.0009
Ecliptic Y 18.72766707 +/- 0.0004
Ecliptic Z 1.28743332 +/- 0.0000
Ecliptic XDOT -0.00097059 +/- 0.0000
Ecliptic YDOT -0.00231763 +/- 0.0000
Ecliptic ZDOT 0.00003942 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.21530894 +/- 0.0009
Geocenter to KBO 44.79800739 +/- 0.0010
# Hcoef: 7.10
The following table shows the complete astrometric record for 19CJ30. 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 (19CJ30) followed by the observatory code and reference code for the source of the astrometry.
2003 12 23.515957 10 36 03.97 +10 35 55.4 19CJ30 T14 C~870V 2003 12 23.568292 10 36 03.90 +10 35 55.9 19CJ30 T14 C~870V 2003 12 23.619541 10 36 03.81 +10 35 56.4 19CJ30 T14 C~870V 2016 12 29.348224 11 33 25.130 +04 52 12.58 21.9z 19CJ30 W84 C~8HR5 2017 03 06.217203 11 30 15.190 +05 14 35.95 23.2r 19CJ30 W84 C~8HR5 2018 04 12.102940 11 32 14.26 +05 02 13.5 19CJ30 W84 C~870V 2018 04 13.100658 11 32 10.66 +05 02 35.5 19CJ30 W84 C~870W 2018 11 19.601979 11 41 20.73 +04 00 18.4 19CJ30 T09 C~85K8 2018 11 19.652174 11 41 20.86 +04 00 17.9 19CJ30 T09 C~85K8 2019 02 04.57182 11 41 07.18 +04 05 10.4 24.3g 19CJ30 T09 C~83G8 2019 02 04.59524 11 41 07.11 +04 05 11.1 24.9g 19CJ30 T09 C~83G8 2019 02 04.63735 11 41 06.97 +04 05 11.9 24.7g 19CJ30 T09 C~83G8 2019 02 28.536830 11 39 39.17 +04 15 13.3 19CJ30 T09 C~85K8 2019 03 02.44109 11 39 31.32 +04 16 05.2 23.0y 19CJ30 T09 C~83G8 2019 03 02.56997 11 39 30.78 +04 16 09.0 22.8y 19CJ30 T09 C~83G8 2019 03 02.58068 11 39 30.72 +04 16 09.5 22.8y 19CJ30 T09 C~83G8 2019 03 08.36650 11 39 06.47 +04 18 49.8 24.2r 19CJ30 T09 C~83G8 2019 03 08.37696 11 39 06.42 +04 18 50.0 23.5r 19CJ30 T09 C~83G8 2019 03 08.40852 11 39 06.27 +04 18 50.8 23.9r 19CJ30 T09 C~83G8 2019 03 08.41061 11 39 06.27 +04 18 50.8 23.7r 19CJ30 T09 C~83G8 2021 05 13.955960 11 44 04.09 +03 46 35.5 19CJ30 W84 C~870W 2021 05 16.965576 11 43 58.53 +03 47 04.4 19CJ30 W84 C~870W
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 0.03 0.00 0.02
2 0.0001 0.00 0.09 0.00 -0.02
3 0.0003 0.00 -0.17 0.00 -0.06
4 13.0180 0.00 0.08 0.00 0.29
5 13.2011 0.00 -0.09 0.00 -0.01
6 14.3014 0.00 0.11 0.00 -0.05
7 14.3041 0.00 0.08 0.00 0.15
8 14.9078 0.00 0.20 0.00 0.03
9 14.9080 0.00 -0.03 0.00 0.36
10 15.1186 0.00 -0.01 0.00 -0.25
11 15.1186 0.00 0.06 0.00 -0.07
12 15.1187 0.00 -0.03 0.00 -0.20
13 15.1842 0.00 0.07 0.00 0.01
14 15.1894 0.00 -0.04 0.00 -0.32
15 15.1897 0.00 0.02 0.00 -0.06
16 15.1898 0.00 -0.20 0.00 0.15
17 15.2056 0.00 0.09 0.00 0.17
18 15.2056 0.00 0.02 0.00 0.08
19 15.2057 0.00 -0.19 0.00 -0.00
20 15.2057 0.00 -0.06 0.00 -0.06
21 17.3893 0.00 -0.02 0.00 -0.08
22 17.3975 0.00 -0.04 0.00 -0.05
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.
19CJ30 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.296 43.296 43.296 ecceobj 0.052 0.052 0.052 incobj 1.887 1.887 1.887 qmin 40.427 40.427 40.427 qmax 46.605 46.632 46.597 amean 43.447 43.445 43.444 amin 43.108 43.117 43.109 amax 43.791 43.798 43.790 emean 0.048 0.048 0.047 emin 0.029 0.028 0.028 emax 0.065 0.065 0.064 imean 0.909 0.906 0.907 imin 0.226 0.239 0.228 imax 1.404 1.399 1.395 excite_mean 0.051 0.051 0.050 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 174.3 175.2 175.4 kozaiamp 180.0 180.0 180.0