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: 15VH166 # Created Tue Jan 21 02:10:46 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 41 observations of 41 # Arc: 10.12y # First observation: 2014/11/17 # Last observation: 2024/12/31 # Chi-squared of fit: 89.27 DOF: 76 RMS: 0.26 # Min/Max residuals: -0.23 1.32 # Exact a, adot, b, bdot, g, gdot: 1.962276E-05 3.721870E-02 7.730374E-07 2.039893E-03 3.052208E-02 -4.693494E-03 # Covariance matrix: 2.1498E-13 -1.4771E-13 8.9894E-15 -7.7102E-15 -5.1083E-14 -3.2052E-13 -1.4771E-13 1.2532E-13 -7.9255E-15 6.7907E-15 4.6526E-14 2.8226E-13 8.9894E-15 -7.9255E-15 6.1198E-14 -1.2116E-14 -2.9949E-15 -1.8668E-14 -7.7102E-15 6.7907E-15 -1.2116E-14 5.7541E-15 2.0671E-15 1.6117E-14 -5.1083E-14 4.6526E-14 -2.9949E-15 2.0671E-15 1.2413E-13 8.3609E-14 -3.2052E-13 2.8226E-13 -1.8668E-14 1.6117E-14 8.3609E-14 6.7048E-13 # lat0 lon0 xBary yBary zBary JD0 -1.302149 47.156826 -0.127947 -0.022139 -0.980901 2456978.901288 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 345.04688 +/- 0.003 Argument of Peri: 7.89907 +/- 0.006 Long of Asc Node: 69.26020 +/- 0.001 Inclination: 3.38918 +/- 0.000 Eccentricity: 0.31795272 +/- 0.0000 Semi-Major Axis: 47.89383519 +/- 0.0033 Time of Perihelion: 2462007.0997 +/- 11.9 Perihelion: 32.66586018 +/- 0.0029 Aphelion: 63.12181020 +/- 0.0047 Period (y) 331.4573 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.84324006 +/- 0.0003 Ecliptic Y 24.82425165 +/- 0.0003 Ecliptic Z -0.74453722 +/- 0.0000 Ecliptic XDOT -0.00273553 +/- 0.0000 Ecliptic YDOT 0.00195966 +/- 0.0000 Ecliptic ZDOT 0.00019260 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.74339480 +/- 0.0003 Geocenter to KBO 32.76329305 +/- 0.0004 # Hcoef: 9.02
The following table shows the complete astrometric record for 15VH166. 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 (15VH166) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.40051 03 00 17.791 +15 42 28.25 24.3r 15VH166 568 C~2lVe 2014 11 17.51464 03 00 17.129 +15 42 25.47 24.0r 15VH166 568 C~2lVe 2014 11 19.30670 03 00 06.710 +15 41 44.38 24.4r 15VH166 568 C~2lVe 2015 08 11.59273 03 14 03.314 +16 46 11.89 24.1w 15VH166 568 C~2lVe 2015 09 12.51312 03 13 54.751 +16 45 07.96 24.6w 15VH166 568 C~2lVe 2015 10 07.43992 03 12 31.095 +16 39 25.82 24.5w 15VH166 568 C~2lVe 2015 10 07.44703 03 12 31.037 +16 39 25.54 24.5w 15VH166 568 C~2lVe 2015 10 08.45165 03 12 26.487 +16 39 07.72 24.6w 15VH166 568 C~2lVe 2015 10 08.51072 03 12 26.217 +16 39 06.68 24.5w 15VH166 568 C~2lVe 2015 11 07.35903 03 09 44.921 +16 28 36.69 24.0r 15VH166 568 C~2lVe 2015 11 07.40112 03 09 44.671 +16 28 35.78 24.1r 15VH166 568 C~2lVe 2015 11 07.44330 03 09 44.416 +16 28 34.78 24.1r 15VH166 568 C~2lVe 2015 11 10.52886 03 09 26.049 +16 27 24.26 24.5w 15VH166 568 C~2lVe 2015 11 17.37547 03 08 45.287 +16 24 48.96 24.3w 15VH166 568 C~2lVe 2015 11 17.42215 03 08 45.004 +16 24 47.93 24.3w 15VH166 568 C~2lVe 2015 12 06.38432 03 06 57.370 +16 18 05.97 24.4w 15VH166 568 C~2lVe 2015 12 13.31874 03 06 22.179 +16 15 58.44 24.4w 15VH166 568 C~2lVe 2015 12 13.37723 03 06 21.883 +16 15 57.41 24.4w 15VH166 568 C~2lVe 2016 01 01.37186 03 05 04.790 +16 11 33.10 24.8w 15VH166 568 C~2lVe 2016 01 07.31862 03 04 47.729 +16 10 41.19 24.6w 15VH166 568 C~2lVe 2016 02 04.29505 03 04 22.434 +16 10 28.98 24.6w 15VH166 568 C~2lVe 2016 02 04.30157 03 04 22.441 +16 10 29.04 24.4w 15VH166 568 C~2lVe 2016 02 10.28486 03 04 29.468 +16 11 18.16 24.7w 15VH166 568 C~2lVe 2016 09 07.62568 03 22 29.980 +17 25 30.77 24.6w 15VH166 568 C~2lVe 2016 09 26.58416 03 21 43.350 +17 22 26.92 24.6w 15VH166 568 C~2lVe 2016 10 09.54522 03 20 50.960 +17 19 08.28 24.2w 15VH166 568 C~2lVe 2016 10 09.61729 03 20 50.623 +17 19 06.90 24.7w 15VH166 568 C~2lVe 2016 11 02.52573 03 18 43.191 +17 11 13.96 24.4w 15VH166 568 C~2lVe 2016 11 04.40084 03 18 32.159 +17 10 33.43 24.4w 15VH166 568 C~2lVe 2016 12 24.29598 03 13 58.215 +16 54 23.92 24.5w 15VH166 568 C~2lVe 2016 12 24.31334 03 13 58.143 +16 54 23.67 24.7w 15VH166 568 C~2lVe 2017 01 02.39822 03 13 24.630 +16 52 36.92 24.6w 15VH166 568 C~2lVe 2017 01 02.41556 03 13 24.574 +16 52 36.77 24.5w 15VH166 568 C~2lVe 2017 01 26.32220 03 12 39.343 +16 50 50.72 24.1w 15VH166 568 C~2lVe 2017 01 26.32908 03 12 39.347 +16 50 50.66 24.6w 15VH166 568 C~2lVe 2017 12 13.42791 03 23 26.736 +17 37 42.38 24.6w 15VH166 568 C~2lVe 2017 12 16.34929 03 23 11.871 +17 36 53.76 24.6w 15VH166 568 C~2lVe 2017 12 16.36856 03 23 11.774 +17 36 53.38 24.5w 15VH166 568 C~2lVe 2024 12 31.23252 04 25 42.131 +21 39 38.09 24.5G 15VH166 G37 2024 12 31.28172 04 25 41.866 +21 39 37.56 15VH166 G37 2024 12 31.33046 04 25 41.604 +21 39 36.83 15VH166 G37
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 -0.09 0.00 0.04
2 0.0003 0.00 0.15 0.00 -0.09
3 0.0052 0.00 -0.02 0.00 0.01
4 0.7315 0.00 -0.10 0.00 -0.02
5 0.8189 0.00 -0.09 0.00 0.04
6 0.8872 0.00 0.40 0.00 -0.07
7 0.8872 0.00 0.02 0.00 -0.23
8 0.8899 0.00 -0.11 0.00 0.04
9 0.8901 0.00 -0.02 0.00 0.07
10 0.9718 0.00 0.04 0.00 0.10
11 0.9719 0.00 0.10 0.00 0.14
12 0.9721 0.00 0.10 0.00 0.10
13 0.9805 0.00 -0.02 0.00 -0.05
14 0.9992 0.00 -0.02 0.00 0.03
15 0.9994 0.00 -0.03 0.00 0.05
16 1.0513 0.00 0.02 0.00 0.01
17 1.0703 0.00 -0.02 0.00 0.01
18 1.0704 0.00 -0.11 0.00 0.00
19 1.1224 0.00 0.05 0.00 -0.05
20 1.1387 0.00 -0.12 0.00 0.06
21 1.2153 0.00 -0.05 0.00 -0.04
22 1.2153 0.00 -0.02 0.00 -0.02
23 1.2317 0.00 0.04 0.00 -0.10
24 1.8076 0.00 -0.03 0.00 -0.00
25 1.8595 0.00 0.01 0.00 -0.03
26 1.8950 0.00 -0.07 0.00 0.04
27 1.8952 0.00 -0.06 0.00 -0.08
28 1.9606 0.00 -0.02 0.00 -0.01
29 1.9658 0.00 0.12 0.00 0.00
30 2.1024 0.00 0.00 0.00 0.04
31 2.1024 0.00 0.02 0.00 0.02
32 2.1273 0.00 -0.04 0.00 0.02
33 2.1274 0.00 -0.02 0.00 0.05
34 2.1928 0.00 0.01 0.00 0.05
35 2.1928 0.00 0.12 0.00 -0.02
36 3.0719 0.00 0.10 0.00 -0.08
37 3.0799 0.00 -0.03 0.00 0.05
38 3.0800 0.00 -0.01 0.00 -0.01
39 10.1214 0.00 1.32 0.00 0.37
40 10.1215 0.00 1.30 0.00 0.37
41 10.1216 0.00 1.27 0.00 0.16
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.
15VH166 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.328 48.328 48.328 ecceobj 0.322 0.322 0.322 incobj 3.385 3.385 3.385 qmin 32.114 32.114 32.114 qmax 64.164 64.163 64.164 amean 47.798 47.798 47.798 amin 47.351 47.351 47.350 amax 48.398 48.398 48.398 emean 0.313 0.313 0.313 emin 0.301 0.301 0.301 emax 0.327 0.327 0.327 imean 2.167 2.167 2.167 imin 1.581 1.579 1.582 imax 2.683 2.683 2.683 excite_mean 0.316 0.316 0.316 fracstop 1.000 1.000 1.000 cjmean 3.021 3.021 3.021 libcent 0 70.3 70.3 70.3 libamp 0 5.3 5.3 5.4 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 242.1 242.1 242.2 kozaiamp 180.0 180.0 180.0