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 Jul 17 01:11:37 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 20 observations of 20
# Arc: 17.40y
# First observation: 2003/12/23
# Last observation: 2021/05/16
# Chi-squared of fit: 10.36 DOF: 34 RMS: 0.13
# Min/Max residuals: -0.30 0.37
# Exact a, adot, b, bdot, g, gdot:
1.437104E-05 2.042428E-02 9.775539E-09 3.267346E-04 2.232249E-02 -2.242154E-04
# Covariance matrix:
4.8955E-13 -6.3271E-14 1.5554E-16 -5.1744E-16 -3.1499E-14 -9.6365E-14
-6.3271E-14 1.4167E-13 -5.5728E-16 2.3984E-15 5.5363E-14 4.3711E-13
1.5554E-16 -5.5728E-16 4.8090E-13 -3.1337E-14 -6.1404E-16 -1.6679E-15
-5.1744E-16 2.3984E-15 -3.1337E-14 2.4071E-15 4.9334E-16 7.6201E-15
-3.1499E-14 5.5363E-14 -6.1404E-16 4.9334E-16 2.8797E-13 1.1905E-13
-9.6365E-14 4.3711E-13 -1.6679E-15 7.6201E-15 1.1905E-13 1.3828E-12
# 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: 222.40666 +/- 0.068
Argument of Peri: 200.84460 +/- 0.062
Long of Asc Node: 95.70645 +/- 0.004
Inclination: 1.88740 +/- 0.000
Eccentricity: 0.04623713 +/- 0.0001
Semi-Major Axis: 43.68348173 +/- 0.0038
Time of Perihelion: 2493302.4544 +/- 21.8
Perihelion: 41.66368281 +/- 0.0048
Aphelion: 45.70328064 +/- 0.0051
Period (y) 288.7248 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.13431080 +/- 0.0010
Ecliptic Y 18.72762557 +/- 0.0004
Ecliptic Z 1.28742750 +/- 0.0000
Ecliptic XDOT -0.00097063 +/- 0.0000
Ecliptic YDOT -0.00231762 +/- 0.0000
Ecliptic ZDOT 0.00003942 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.21520455 +/- 0.0009
Geocenter to KBO 44.79790298 +/- 0.0011
# Hcoef: 7.29
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 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 0.04 0.00 0.04
2 0.0001 0.00 0.09 0.00 -0.01
3 0.0003 0.00 -0.17 0.00 -0.05
4 14.3014 0.00 0.08 0.00 -0.03
5 14.3041 0.00 0.06 0.00 0.17
6 14.9078 0.00 0.20 0.00 0.05
7 14.9080 0.00 -0.03 0.00 0.37
8 15.1186 0.00 -0.01 0.00 -0.24
9 15.1186 0.00 0.06 0.00 -0.06
10 15.1187 0.00 -0.03 0.00 -0.18
11 15.1842 0.00 0.07 0.00 0.02
12 15.1894 0.00 -0.04 0.00 -0.30
13 15.1897 0.00 0.02 0.00 -0.04
14 15.1898 0.00 -0.20 0.00 0.16
15 15.2056 0.00 0.09 0.00 0.18
16 15.2056 0.00 0.01 0.00 0.09
17 15.2057 0.00 -0.20 0.00 0.01
18 15.2057 0.00 -0.06 0.00 -0.04
19 17.3893 0.00 0.01 0.00 -0.08
20 17.3975 0.00 -0.01 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:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0