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: 15VK166 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 41 observations of 41 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: 0.000063 0.027215 -0.000003 0.000057 0.025484 0.000000 # Chi-squared of fit: 3.00 DOF: 76 RMS: 0.05 # Min/Max residuals: -0.12 0.16 # Exact a, adot, b, bdot, g, gdot: 1.674170E-05 2.759921E-02 4.174593E-07 5.914759E-05 2.574692E-02 2.976525E-03 # Covariance matrix: 2.4818E-13 -2.8955E-13 1.0274E-15 -9.2961E-16 -1.1133E-13 -2.6166E-12 -2.8955E-13 4.6743E-13 -1.9909E-15 1.7711E-15 2.1576E-13 5.0076E-12 1.0274E-15 -1.9909E-15 1.3598E-13 -7.4781E-14 -1.8481E-15 -2.3920E-14 -9.2961E-16 1.7711E-15 -7.4781E-14 5.6313E-14 6.5307E-16 2.1686E-14 -1.1133E-13 2.1576E-13 -1.8481E-15 6.5307E-16 2.0093E-13 2.5920E-12 -2.6166E-12 5.0076E-12 -2.3920E-14 2.1686E-14 2.5920E-12 6.1009E-11 # lat0 lon0 xBary yBary zBary JD0 -2.378044 48.041197 -0.110533 -0.040654 -0.982442 2456978.772168 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 25.61200 +/- 0.042 Argument of Peri: 234.50323 +/- 0.073 Long of Asc Node: 135.24373 +/- 0.012 Inclination: 2.32248 +/- 0.000 Eccentricity: 0.20210387 +/- 0.0002 Semi-Major Axis: 48.08774908 +/- 0.0050 Time of Perihelion: 2448305.0494 +/- 14.0 Perihelion: 38.36902890 +/- 0.0109 Aphelion: 57.80646927 +/- 0.0118 Period (y) 333.4724 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 26.51772036 +/- 0.0004 Ecliptic Y 29.66386291 +/- 0.0005 Ecliptic Z -1.61155954 +/- 0.0000 Ecliptic XDOT -0.00197507 +/- 0.0000 Ecliptic YDOT 0.00219260 +/- 0.0000 Ecliptic ZDOT -0.00000675 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.82124283 +/- 0.0005 Geocenter to KBO 38.83959216 +/- 0.0007 # Hcoef: 7.39
The following table shows the complete astrometric record for 15VK166. 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 (15VK166) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27139 03 05 03.518 +14 55 12.77 23.3r 15VK166 568 C~2lVe 2014 11 17.38009 03 05 02.954 +14 55 10.59 23.5r 15VK166 568 C~2lVe 2014 11 17.49387 03 05 02.368 +14 55 08.25 23.3r 15VK166 568 C~2lVe 2014 11 19.28114 03 04 53.378 +14 54 31.96 23.3r 15VK166 568 C~2lVe 2014 11 23.38468 03 04 32.888 +14 53 10.26 23.3r 15VK166 568 C~2lVe 2015 08 11.61007 03 15 56.734 +15 43 00.47 23.8w 15VK166 568 C~2lVe 2015 09 06.62757 03 15 55.931 +15 41 24.90 23.6w 15VK166 568 C~2lVe 2015 09 12.51723 03 15 46.616 +15 40 28.93 23.6w 15VK166 568 C~2lVe 2015 10 08.45753 03 14 30.275 +15 34 17.83 23.5w 15VK166 568 C~2lVe 2015 10 08.51654 03 14 30.050 +15 34 16.81 23.6w 15VK166 568 C~2lVe 2015 11 07.36426 03 12 12.047 +15 24 32.23 23.3r 15VK166 568 C~2lVe 2015 11 07.40638 03 12 11.835 +15 24 31.39 23.2r 15VK166 568 C~2lVe 2015 11 07.44859 03 12 11.614 +15 24 30.51 23.2r 15VK166 568 C~2lVe 2015 11 10.53471 03 11 55.898 +15 23 27.23 23.4w 15VK166 568 C~2lVe 2015 11 17.38127 03 11 20.992 +15 21 08.75 23.5w 15VK166 568 C~2lVe 2015 11 17.42797 03 11 20.749 +15 21 07.86 23.5w 15VK166 568 C~2lVe 2015 12 06.39016 03 09 48.161 +15 15 15.45 23.5w 15VK166 568 C~2lVe 2015 12 13.32462 03 09 17.662 +15 13 25.28 23.5w 15VK166 568 C~2lVe 2015 12 13.38310 03 09 17.412 +15 13 24.40 23.7w 15VK166 568 C~2lVe 2016 01 01.37764 03 08 09.643 +15 09 38.97 23.6w 15VK166 568 C~2lVe 2016 01 07.32440 03 07 54.264 +15 08 55.25 23.6w 15VK166 568 C~2lVe 2016 02 04.30735 03 07 27.496 +15 08 47.85 23.8w 15VK166 568 C~2lVe 2016 02 04.31413 03 07 27.509 +15 08 47.85 23.8w 15VK166 568 C~2lVe 2016 02 04.32117 03 07 27.506 +15 08 47.83 23.8w 15VK166 568 C~2lVe 2016 02 04.32803 03 07 27.508 +15 08 47.91 23.7w 15VK166 568 C~2lVe 2016 02 05.26985 03 07 27.999 +15 08 53.43 23.7w 15VK166 568 C~2lVe 2016 02 10.29068 03 07 32.155 +15 09 29.66 23.9w 15VK166 568 C~2lVe 2016 09 07.56785 03 22 04.258 +16 05 19.47 15VK166 568 C~2lVe 2016 09 27.50655 03 21 19.826 +16 01 30.64 23.8w 15VK166 568 C~2lVe 2016 10 10.39070 03 20 34.007 +15 58 05.90 23.7w 15VK166 568 C~2lVe 2016 10 10.44903 03 20 33.766 +15 58 04.95 23.7w 15VK166 568 C~2lVe 2016 11 02.51417 03 18 48.356 +15 50 50.15 23.6w 15VK166 568 C~2lVe 2016 11 04.38927 03 18 38.973 +15 50 13.00 23.5w 15VK166 568 C~2lVe 2016 12 24.30148 03 14 45.474 +15 36 02.66 23.7w 15VK166 568 C~2lVe 2017 01 02.40371 03 14 16.330 +15 34 34.23 23.7w 15VK166 568 C~2lVe 2017 01 26.29235 03 13 35.174 +15 33 14.41 23.6w 15VK166 568 C~2lVe 2017 01 26.34976 03 13 35.136 +15 33 14.45 23.5w 15VK166 568 C~2lVe 2017 09 17.59434 03 27 57.436 +16 27 08.17 23.6w 15VK166 568 C~2lVe 2017 09 23.57295 03 27 43.312 +16 25 58.90 23.7w 15VK166 568 C~2lVe 2017 12 16.35926 03 21 29.602 +16 02 07.93 23.7w 15VK166 568 C~2lVe 2017 12 16.37785 03 21 29.523 +16 02 07.57 23.5w 15VK166 568 C~2lVe
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 -0.08
2 0.0003 -8.46 -0.03 0.15 -0.03
3 0.0006 -17.27 -0.05 0.24 -0.04
4 0.0055 -152.53 -0.00 1.23 -0.04
5 0.0167 -460.56 0.01 4.55 -0.01
6 0.7319 9880.67 0.01 217.56 -0.05
7 0.8032 9844.25 0.16 128.31 -0.02
8 0.8193 9699.41 -0.12 109.71 0.01
9 0.8903 8535.48 -0.10 42.92 0.02
10 0.8905 8532.07 0.06 42.80 -0.01
11 0.9722 6450.82 0.02 10.09 0.06
12 0.9723 6447.64 0.10 10.10 0.06
13 0.9724 6444.32 0.05 10.11 0.05
14 0.9809 6208.18 -0.05 9.94 0.00
15 0.9996 5684.24 -0.02 11.83 -0.01
16 0.9997 5680.61 -0.02 11.92 0.04
17 1.0517 4294.81 -0.01 33.13 -0.01
18 1.0706 3839.88 -0.04 46.38 -0.00
19 1.0708 3836.16 -0.02 46.51 -0.01
20 1.1228 2830.52 -0.07 95.62 0.05
21 1.1391 2604.32 -0.04 114.11 0.04
22 1.2157 2229.33 -0.00 212.56 0.12
23 1.2157 2229.51 0.13 212.51 0.04
24 1.2157 2229.47 0.03 212.50 0.01
25 1.2158 2229.52 0.03 212.57 0.05
26 1.2183 2237.86 -0.00 215.95 -0.03
27 1.2321 2305.64 -0.01 234.40 0.03
28 1.8078 15369.15 -0.05 134.08 -0.01
29 1.8624 14687.81 -0.03 77.05 -0.06
30 1.8977 13993.35 0.02 49.20 -0.05
31 1.8978 13989.73 -0.02 49.18 0.01
32 1.9610 12401.93 -0.01 22.79 -0.03
33 1.9661 12261.03 0.02 22.12 0.01
34 2.1028 8775.42 0.06 85.94 -0.01
35 2.1277 8345.21 -0.05 112.18 -0.00
36 2.1931 7749.75 0.01 193.12 -0.04
37 2.1932 7749.23 -0.04 193.31 -0.07
38 2.8346 20660.62 0.03 115.64 0.04
39 2.8509 20444.45 0.00 99.12 0.02
40 3.0803 14834.34 0.01 76.89 0.02
41 3.0804 14833.14 -0.01 76.83 -0.08
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.
15VK166 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.581 48.598 48.564 ecceobj 0.211 0.211 0.210 incobj 2.322 2.322 2.322 qmin 37.856 37.799 37.813 qmax 58.827 58.889 58.794 amean 47.798 47.798 47.798 amin 47.103 47.095 47.135 amax 48.582 48.598 48.567 emean 0.194 0.195 0.193 emin 0.177 0.178 0.176 emax 0.211 0.212 0.211 imean 1.561 1.498 1.432 imin 1.141 1.131 1.137 imax 1.959 1.829 1.793 excite_mean 0.196 0.197 0.195 fracstop 1.000 1.000 1.000 cjmean 3.101 3.100 3.101 libcent 0 179.9 180.4 180.4 libamp 0 162.7 164.7 159.2 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 267.5 174.1 172.2 kozaiamp 180.0 180.0 179.8