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: 15KC465 # Created Sun Oct 19 01:11:02 2025 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 55.94d # First observation: 2015/05/17 # Last observation: 2015/07/12 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.020168 -0.000004 0.007199 0.020993 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 7.59 DOF: 29 RMS: 0.12 # Min/Max residuals: -0.36 0.23 # Exact a, adot, b, bdot, g, gdot: 1.384081E-05 1.756294E-02 5.260700E-06 6.597429E-03 2.058048E-02 -6.592572E-03 # Covariance matrix: 4.1082E-13 4.8205E-11 -6.5531E-14 1.2183E-11 1.1649E-11 -7.3430E-11 4.8205E-11 4.4956E-08 -7.0746E-11 1.0471E-08 7.5273E-09 -1.1928E-06 -6.5531E-14 -7.0746E-11 2.5770E-13 -1.7560E-11 -1.1657E-11 1.9489E-09 1.2183E-11 1.0471E-08 -1.7560E-11 2.4635E-09 1.7651E-09 -2.7390E-07 1.1649E-11 7.5273E-09 -1.1657E-11 1.7651E-09 1.3153E-09 -1.7998E-07 -7.3430E-11 -1.1928E-06 1.9489E-09 -2.7390E-07 -1.7998E-07 3.8895E-05 # lat0 lon0 xBary yBary zBary JD0 14.149438 -141.111498 -0.299315 0.235771 -0.934847 2457159.907658 # Heliocentric elements and errors Epoch: 2457150.5000 = 2015/05/08 Mean Anomaly: 316.49877 +/- 23.214 Argument of Peri: 117.93917 +/- 4.440 Long of Asc Node: 186.31185 +/- 0.287 Inclination: 24.43750 +/- 0.168 Eccentricity: 0.36369624 +/- 0.3496 Semi-Major Axis: 59.78487835 +/- 18.5904 Time of Perihelion: 2477553.0503 +/- 5289.1 Perihelion: 38.04134314 +/- 24.0183 Aphelion: 81.52841355 +/- 32.8581 Period (y) 462.2695 +/- 215.62 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -37.23869694 +/- 0.0646 Ecliptic Y -30.41816024 +/- 0.0521 Ecliptic Z 11.87815225 +/- 0.0209 Ecliptic XDOT 0.00229292 +/- 0.0006 Ecliptic YDOT -0.00115614 +/- 0.0005 Ecliptic ZDOT 0.00063672 +/- 0.0002 # Distances at JD0 (AU) Heliocenter to KBO 49.52853241 +/- 0.0584 Geocenter to KBO 48.58973836 +/- 0.0856 # Hcoef: 7.81
The following table shows the complete astrometric record for 15KC465. 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 (15KC465) followed by the observatory code and reference code for the source of the astrometry.
2015 05 17.40688 14 43 56.53 -01 01 26.3 25.7g 15KC465 T09 C~94qS 2015 05 17.46303 14 43 56.32 -01 01 25.4 25.6g 15KC465 T09 C~94qS 2015 05 17.49695 14 43 56.18 -01 01 24.8 25.5g 15KC465 T09 C~94qS 2015 05 21.37537 14 43 41.65 -01 00 21.1 24.6i 15KC465 T09 C~94qS 2015 05 21.38488 14 43 41.62 -01 00 20.9 24.4i 15KC465 T09 C~94qS 2015 05 21.39295 14 43 41.59 -01 00 20.9 24.7i 15KC465 T09 C~94qS 2015 05 21.40102 14 43 41.56 -01 00 20.6 24.4i 15KC465 T09 C~94qS 2015 05 21.41449 14 43 41.49 -01 00 20.8 24.5i 15KC465 T09 C~94qS 2015 05 26.28279 14 43 23.73 -00 59 09.5 24.3y 15KC465 T09 C~94qS 2015 05 26.31363 14 43 23.65 -00 59 09.2 23.9y 15KC465 T09 C~94qS 2015 05 26.34604 14 43 23.53 -00 59 08.9 24.7y 15KC465 T09 C~94qS 2015 05 26.45388 14 43 23.13 -00 59 07.2 23.6y 15KC465 T09 C~94qS 2015 07 12.25545 14 41 26.35 -00 56 53.4 25.1z 15KC465 T09 C~94qS 2015 07 12.29403 14 41 26.31 -00 56 53.7 24.5z 15KC465 T09 C~94qS 2015 07 12.31035 14 41 26.28 -00 56 53.7 24.6z 15KC465 T09 C~94qS 2015 07 12.33192 14 41 26.25 -00 56 53.9 24.7z 15KC465 T09 C~94qS 2015 07 12.34809 14 41 26.24 -00 56 54.1 24.4z 15KC465 T09 C~94qS
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 -0.07 0.00 -0.04
2 0.0002 -3.27 0.04 -0.12 -0.07
3 0.0002 -5.46 -0.10 -0.20 -0.10
4 0.0109 -232.39 0.01 -7.11 0.10
5 0.0109 -232.88 0.08 -7.06 0.18
6 0.0109 -233.30 0.12 -7.20 0.06
7 0.0109 -233.82 0.08 -7.06 0.23
8 0.0110 -234.76 -0.07 -7.57 -0.25
9 0.0243 -510.11 -0.36 -22.27 -0.03
10 0.0244 -511.34 0.14 -22.35 0.01
11 0.0245 -513.14 0.16 -22.63 -0.13
12 0.0248 -519.38 -0.02 -22.87 0.06
13 0.1529 -2226.21 0.06 -438.23 -0.04
14 0.1530 -2226.69 0.13 -438.70 -0.01
15 0.1531 -2227.11 -0.07 -438.84 0.06
16 0.1531 -2227.48 -0.13 -439.17 0.01
17 0.1532 -2227.56 0.01 -439.40 -0.02
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.
15KC465 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