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: 15KH463
# Created Thu Aug 28 01:10:43 2025
# Orbit generated from Bernstein formalism
# Fitting 15 observations of 15
# Arc: 3.24y
# First observation: 2014/05/30
# Last observation: 2017/08/24
Preliminary a, adot, b, bdot, g, gdot:
0.000268 0.019443 -0.000157 -0.011049 0.022952 0.000000
# Chi-squared of fit: 3.61 DOF: 24 RMS: 0.09
# Min/Max residuals: -0.26 0.19
# Exact a, adot, b, bdot, g, gdot:
1.367566E-05 1.979765E-02 -7.614998E-06 -1.125614E-02 2.327379E-02 -1.997329E-03
# Covariance matrix:
5.6304E-13 -6.7448E-13 -2.0328E-13 3.5554E-13 -3.4236E-13 -8.5697E-12
-6.7448E-13 1.1475E-12 4.3371E-13 -7.6108E-13 4.3201E-13 1.8168E-11
-2.0328E-13 4.3371E-13 4.6946E-13 -5.0518E-13 7.7748E-14 8.4850E-12
3.5554E-13 -7.6108E-13 -5.0518E-13 7.5960E-13 -1.3060E-13 -1.4931E-11
-3.4236E-13 4.3201E-13 7.7748E-14 -1.3060E-13 7.7177E-13 3.5277E-12
-8.5697E-12 1.8168E-11 8.4850E-12 -1.4931E-11 3.5277E-12 3.5351E-10
# lat0 lon0 xBary yBary zBary JD0
6.518103 -124.239409 -0.229878 0.112253 -0.982015 2456807.906456
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 316.92299 +/- 0.231
Argument of Peri: 219.61439 +/- 0.322
Long of Asc Node: 67.07493 +/- 0.000
Inclination: 30.30228 +/- 0.001
Eccentricity: 0.10734752 +/- 0.0006
Semi-Major Axis: 47.37882183 +/- 0.0076
Time of Perihelion: 2471053.8808 +/- 76.3
Perihelion: 42.29282302 +/- 0.0315
Aphelion: 52.46482063 +/- 0.0319
Period (y) 326.1254 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.38654394 +/- 0.0009
Ecliptic Y -36.23576526 +/- 0.0013
Ecliptic Z 4.87720217 +/- 0.0002
Ecliptic XDOT 0.00196683 +/- 0.0000
Ecliptic YDOT -0.00124530 +/- 0.0000
Ecliptic ZDOT -0.00134212 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.94907633 +/- 0.0012
Geocenter to KBO 42.96678570 +/- 0.0016
# Hcoef: 7.33
The following table shows the complete astrometric record for 15KH463. 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 (15KH463) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.405678 15 40 03.01 -12 51 34.9 15KH463 T14 C~90He 2014 05 31.443643 15 39 58.15 -12 51 27.3 15KH463 T14 C~90He 2015 02 23.640173 15 49 06.82 -13 58 33.8 15KH463 T14 C~90He 2015 05 17.41260 15 45 03.12 -13 46 47.4 15KH463 T14 C~90He 2015 05 17.45470 15 45 02.91 -13 46 47.1 23.1G 15KH463 T14 C~90He 2015 05 17.50637 15 45 02.66 -13 46 46.5 15KH463 T14 C~90He 2015 05 24.39782 15 44 29.45 -13 45 43.1 23.4G 15KH463 T14 C~90He 2015 05 24.44391 15 44 29.22 -13 45 42.7 15KH463 T14 C~90He 2015 05 24.48500 15 44 29.02 -13 45 42.3 15KH463 T14 C~90He 2015 05 26.47304 15 44 19.49 -13 45 25.5 23.4G 15KH463 T14 C~90He 2015 06 18.37201 15 42 35.90 -13 43 09.6 23.9G 15KH463 T14 C~90He 2015 06 18.41299 15 42 35.72 -13 43 09.5 15KH463 T14 C~90He 2015 07 10.423387 15 41 18.29 -13 43 10.5 15KH463 T14 C~90He 2017 08 20.280637 15 48 20.97 -15 34 49.0 15KH463 T14 C~90He 2017 08 24.25064 15 48 23.77 -15 35 47.8 23.8G 15KH463 T14 C~90He
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 -0.05 0.00 -0.01
2 0.0028 -70.92 -0.09 -8.92 -0.17
3 0.7371 8640.84 -0.02 -2130.49 0.01
4 0.9637 5019.61 0.02 -2231.41 0.07
5 0.9639 5016.56 -0.00 -2231.80 -0.05
6 0.9640 5012.87 0.02 -2232.03 0.05
7 0.9829 4526.90 0.03 -2279.05 0.06
8 0.9830 4523.54 -0.04 -2279.42 0.04
9 0.9831 4520.61 -0.04 -2279.69 0.08
10 0.9885 4381.47 0.06 -2294.59 0.02
11 1.0512 2879.92 0.12 -2503.60 0.07
12 1.0514 2877.34 0.02 -2504.10 0.01
13 1.1116 1778.68 0.01 -2761.98 -0.11
14 3.2248 9271.63 -0.13 -7919.59 -0.26
15 3.2357 9324.26 0.07 -7968.17 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.
15KH463 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 47.131 47.151 47.111 ecceobj 0.108 0.108 0.107 incobj 30.343 30.344 30.342 qmin 41.295 41.289 41.351 qmax 53.835 53.952 53.772 amean 47.474 47.488 47.453 amin 47.083 47.082 47.068 amax 47.903 47.931 47.890 emean 0.109 0.109 0.109 emin 0.094 0.093 0.094 emax 0.125 0.126 0.124 imean 29.003 29.010 29.001 imin 28.723 28.719 28.727 imax 29.302 29.312 29.295 excite_mean 0.497 0.497 0.497 fracstop 1.000 1.000 1.000 cjmean 2.817 2.817 2.817 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 181.0 181.1 180.5 kozaiamp 179.9 180.0 179.9