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: 15KC163
# Created Wed Dec 25 02:10:18 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 23 observations of 23
# Arc: 13.00y
# First observation: 2006/08/22
# Last observation: 2019/08/22
# Chi-squared of fit: 43.07 DOF: 40 RMS: 0.24
# Min/Max residuals: -0.51 0.60
# Exact a, adot, b, bdot, g, gdot:
1.517901E-05 2.683894E-02 -1.667047E-06 1.432264E-03 2.520025E-02 -2.847471E-03
# Covariance matrix:
8.0842E-13 -1.7756E-13 1.1933E-14 -6.2018E-15 -1.3407E-13 -3.5817E-13
-1.7756E-13 8.0552E-14 -5.9337E-15 3.7769E-15 1.6027E-14 2.1448E-13
1.1933E-14 -5.9337E-15 5.4773E-13 -6.0109E-14 -4.9027E-15 -1.7819E-14
-6.2018E-15 3.7769E-15 -6.0109E-14 7.4982E-15 1.0217E-15 1.1083E-14
-1.3407E-13 1.6027E-14 -4.9027E-15 1.0217E-15 1.6657E-13 6.7036E-14
-3.5817E-13 2.1448E-13 -1.7819E-14 1.1083E-14 6.7036E-14 6.3048E-13
# lat0 lon0 xBary yBary zBary JD0
0.837664 -136.528744 -0.975460 -0.003846 0.270671 2453969.533571
# Heliocentric elements and errors
Epoch: 2453970.5000 = 2006/08/23
Mean Anomaly: 337.26105 +/- 0.010
Argument of Peri: 47.87541 +/- 0.014
Long of Asc Node: 209.30686 +/- 0.002
Inclination: 3.13490 +/- 0.000
Eccentricity: 0.17334718 +/- 0.0001
Semi-Major Axis: 46.60782406 +/- 0.0039
Time of Perihelion: 2461311.4889 +/- 13.9
Perihelion: 38.52848937 +/- 0.0040
Aphelion: 54.68715876 +/- 0.0051
Period (y) 318.1973 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -27.93007093 +/- 0.0005
Ecliptic Y -27.82365970 +/- 0.0005
Ecliptic Z 0.58006570 +/- 0.0000
Ecliptic XDOT 0.00223677 +/- 0.0000
Ecliptic YDOT -0.00190663 +/- 0.0000
Ecliptic ZDOT 0.00015102 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.42823408 +/- 0.0005
Geocenter to KBO 39.68225566 +/- 0.0006
# Hcoef: 8.07
The following table shows the complete astrometric record for 15KC163. 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 (15KC163) followed by the observatory code and reference code for the source of the astrometry.
2006 08 22.032817 14 45 06.38 -15 05 00.2 15KC163 807 C~5fmp 2007 04 22.255931 14 56 25.05 -15 49 50.0 15KC163 807 C~5fmp 2009 06 18.344910 15 04 55.32 -16 14 41.7 15KC163 568 C~5fmp 2015 05 20.255750 15 47 16.20 -18 19 20.0 15KC163 W84 C~5fmp 2015 05 20.268785 15 47 16.12 -18 19 19.6 15KC163 W84 C~5fmp 2015 05 27.192487 15 46 40.00 -18 17 19.7 24.1r 15KC163 W84 C~263c 2015 05 27.214114 15 46 39.87 -18 17 19.4 23.8r 15KC163 W84 C~263c 2015 05 27.235762 15 46 39.76 -18 17 18.9 23.9r 15KC163 W84 C~263c 2015 05 27.292647 15 46 39.45 -18 17 18.3 23.5r 15KC163 W84 C~263c 2015 05 27.335929 15 46 39.26 -18 17 17.5 15KC163 W84 C~263c 2015 05 28.313157 15 46 34.17 -18 17 00.7 23.7r 15KC163 W84 C~263c 2015 05 28.334857 15 46 34.06 -18 17 00.2 23.9r 15KC163 W84 C~263c 2015 06 21.163526 15 44 39.19 -18 10 52.3 15KC163 W84 C~5fmp 2015 06 21.197996 15 44 39.03 -18 10 52.1 15KC163 W84 C~5fmp 2015 06 21.232513 15 44 38.90 -18 10 51.5 15KC163 W84 C~5fmp 2015 06 24.072049 15 44 26.95 -18 10 14.3 15KC163 W84 C~5fmp 2015 06 24.141010 15 44 26.68 -18 10 13.5 15KC163 W84 C~5fmp 2016 03 07.406222 15 58 25.46 -18 51 24.3 15KC163 W84 C~5fmp 2016 03 07.408278 15 58 25.45 -18 51 24.2 15KC163 W84 C~5fmp 2016 03 08.332191 15 58 24.97 -18 51 19.4 15KC163 W84 C~5fmp 2016 03 08.334254 15 58 24.96 -18 51 19.6 15KC163 W84 C~5fmp 2017 05 02.154844 16 02 31.94 -18 56 02.2 15KC163 W84 C~5fmp 2019 08 22.023992 16 09 43.99 -19 07 43.6 15KC163 W84 C~5fmp
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 0.50 0.00 0.40
2 0.6659 0.00 -0.39 0.00 -0.51
3 2.8236 0.00 -0.29 0.00 0.18
4 8.7426 0.00 -0.13 0.00 -0.19
5 8.7426 0.00 -0.29 0.00 -0.02
6 8.7616 0.00 0.09 0.00 0.16
7 8.7616 0.00 -0.15 0.00 0.09
8 8.7617 0.00 -0.09 0.00 0.22
9 8.7618 0.00 -0.25 0.00 -0.17
10 8.7620 0.00 0.31 0.00 -0.12
11 8.7646 0.00 -0.12 0.00 0.05
12 8.7647 0.00 -0.06 0.00 0.18
13 8.8299 0.00 -0.02 0.00 0.04
14 8.8300 0.00 -0.16 0.00 -0.23
15 8.8301 0.00 0.15 0.00 -0.10
16 8.8379 0.00 0.20 0.00 0.05
17 8.8381 0.00 0.51 0.00 -0.03
18 9.5424 0.00 0.04 0.00 -0.11
19 9.5424 0.00 -0.10 0.00 -0.02
20 9.5450 0.00 0.08 0.00 0.25
21 9.5450 0.00 -0.05 0.00 0.04
22 10.6944 0.00 0.60 0.00 -0.29
23 12.9993 0.00 -0.45 0.00 0.19
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.
15KC163 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.911 45.911 45.911 ecceobj 0.163 0.163 0.163 incobj 3.154 3.154 3.154 qmin 37.953 37.952 37.951 qmax 55.039 55.032 55.034 amean 46.296 46.295 46.295 amin 45.885 45.886 45.883 amax 46.751 46.758 46.747 emean 0.164 0.164 0.164 emin 0.150 0.150 0.150 emax 0.178 0.177 0.178 imean 4.362 4.362 4.362 imin 3.720 3.720 3.721 imax 5.028 5.027 5.027 excite_mean 0.181 0.181 0.181 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 175.6 175.8 175.6 kozaiamp 179.9 179.9 180.0