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: 15VK165 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 40 observations of 40 # Arc: 3.07y # First observation: 2014/11/17 # Last observation: 2017/12/13 Preliminary a, adot, b, bdot, g, gdot: -0.000028 0.044364 -0.000005 -0.001470 0.034541 0.000000 # Chi-squared of fit: 15.80 DOF: 74 RMS: 0.11 # Min/Max residuals: -0.28 0.37 # Exact a, adot, b, bdot, g, gdot: 2.110511E-05 4.483715E-02 -1.135918E-06 -1.483922E-03 3.482327E-02 1.930745E-03 # Covariance matrix: 3.0585E-13 -3.5943E-13 -3.5837E-15 8.0914E-15 -1.1871E-13 -2.0258E-12 -3.5943E-13 5.5924E-13 6.5875E-15 -1.4755E-14 2.1131E-13 3.6987E-12 -3.5837E-15 6.5875E-15 1.5827E-13 -9.0061E-14 2.0476E-15 4.9311E-14 8.0914E-15 -1.4755E-14 -9.0061E-14 6.7361E-14 -6.7560E-15 -1.1095E-13 -1.1871E-13 2.1131E-13 2.0476E-15 -6.7560E-15 1.9220E-13 1.6110E-12 -2.0258E-12 3.6987E-12 4.9311E-14 -1.1095E-13 1.6110E-12 2.7793E-11 # lat0 lon0 xBary yBary zBary JD0 -2.573347 47.347770 -0.122689 -0.043936 -0.980855 2456978.787348 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 7.39350 +/- 0.018 Argument of Peri: 219.90492 +/- 0.032 Long of Asc Node: 174.85704 +/- 0.005 Inclination: 3.12571 +/- 0.000 Eccentricity: 0.25424517 +/- 0.0001 Semi-Major Axis: 39.61804351 +/- 0.0024 Time of Perihelion: 2455099.8804 +/- 4.5 Perihelion: 29.54534720 +/- 0.0027 Aphelion: 49.69073982 +/- 0.0036 Period (y) 249.3720 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 20.00900674 +/- 0.0002 Ecliptic Y 21.90579943 +/- 0.0003 Ecliptic Z -1.28936562 +/- 0.0000 Ecliptic XDOT -0.00249776 +/- 0.0000 Ecliptic YDOT 0.00249117 +/- 0.0000 Ecliptic ZDOT -0.00012326 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 29.69657999 +/- 0.0003 Geocenter to KBO 28.71643264 +/- 0.0004 # Hcoef: 10.26
The following table shows the complete astrometric record for 15VK165. 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 (15VK165) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.28657 03 02 31.736 +14 32 26.73 24.4r 15VK165 568 C~2lVa 2014 11 17.39535 03 02 31.036 +14 32 23.60 24.7r 15VK165 568 C~2lVa 2014 11 17.50914 03 02 30.264 +14 32 20.55 24.7r 15VK165 568 C~2lVa 2014 11 23.40372 03 01 52.351 +14 29 42.16 25.5r 15VK165 568 C~2lVa 2015 08 11.60150 03 18 29.201 +15 38 37.79 25.6w 15VK165 568 C~2lVa 2015 09 06.61481 03 18 38.006 +15 36 32.52 24.8w 15VK165 568 C~2lVa 2015 09 12.50491 03 18 27.689 +15 35 18.25 25.5w 15VK165 568 C~2lVa 2015 10 08.44001 03 16 54.070 +15 27 04.99 25.0w 15VK165 568 C~2lVa 2015 10 08.49908 03 16 53.771 +15 27 03.61 26.0w 15VK165 568 C~2lVa 2015 11 07.34843 03 13 56.776 +15 14 04.76 24.3r 15VK165 568 C~2lVa 2015 11 07.39058 03 13 56.504 +15 14 03.62 25.0r 15VK165 568 C~2lVa 2015 11 07.43274 03 13 56.221 +15 14 02.52 25.2r 15VK165 568 C~2lVa 2015 11 10.51713 03 13 35.918 +15 12 38.25 24.5w 15VK165 568 C~2lVa 2015 11 10.54648 03 13 35.704 +15 12 37.75 24.9w 15VK165 568 C~2lVa 2015 11 17.36382 03 12 50.699 +15 09 34.42 25.0w 15VK165 568 C~2lVa 2015 11 17.41043 03 12 50.384 +15 09 33.21 25.0w 15VK165 568 C~2lVa 2015 12 06.37266 03 10 50.553 +15 01 46.89 24.8w 15VK165 568 C~2lVa 2015 12 13.30706 03 10 11.268 +14 59 22.22 25.2w 15VK165 568 C~2lVa 2015 12 13.36559 03 10 10.951 +14 59 21.14 25.8w 15VK165 568 C~2lVa 2016 01 01.37764 03 08 44.669 +14 54 29.77 25.5w 15VK165 568 C~2lVa 2016 01 07.32440 03 08 25.587 +14 53 35.47 25.1w 15VK165 568 C~2lVa 2016 02 04.30735 03 07 57.236 +14 53 48.66 24.8w 15VK165 568 C~2lVa 2016 02 04.32803 03 07 57.249 +14 53 48.70 25.5w 15VK165 568 C~2lVa 2016 02 05.26985 03 07 58.154 +14 53 56.92 25.6w 15VK165 568 C~2lVa 2016 02 10.29068 03 08 05.091 +14 54 49.65 24.8w 15VK165 568 C~2lVa 2016 09 07.58521 03 28 42.476 +16 09 33.25 15VK165 568 C~2lVa 2016 09 27.51883 03 27 52.086 +16 04 38.12 25.3w 15VK165 568 C~2lVa 2016 10 07.50403 03 27 09.850 +16 01 16.05 25.4w 15VK165 568 C~2lVa 2016 10 07.59973 03 27 09.363 +16 01 13.91 25.2w 15VK165 568 C~2lVa 2016 10 09.50422 03 27 00.190 +16 00 32.07 25.2w 15VK165 568 C~2lVa 2016 10 09.57681 03 26 59.834 +16 00 30.57 25.5w 15VK165 568 C~2lVa 2016 11 02.49102 03 24 41.571 +15 50 44.25 25.0w 15VK165 568 C~2lVa 2016 11 04.46713 03 24 28.802 +15 49 52.96 25.1w 15VK165 568 C~2lVa 2016 12 24.33677 03 19 25.018 +15 31 26.20 25.5w 15VK165 568 C~2lVa 2016 12 28.44224 03 19 06.873 +15 30 30.57 25.9w 15VK165 568 C~2lVa 2017 01 02.43952 03 18 47.238 +15 29 33.48 25.2w 15VK165 568 C~2lVa 2017 01 26.34976 03 17 55.407 +15 28 01.07 25.6w 15VK165 568 C~2lVa 2017 09 15.62132 03 38 36.624 +16 39 25.97 25.7w 15VK165 568 C~2lVa 2017 09 22.59895 03 38 19.766 +16 37 48.45 24.8w 15VK165 568 C~2lVa 2017 12 13.35764 03 30 36.886 +16 08 01.01 25.2w 15VK165 568 C~2lVa
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 -0.15 0.00 0.10
2 0.0003 -10.63 0.09 -0.18 -0.14
3 0.0006 -22.25 -0.14 0.02 0.01
4 0.0167 -595.12 0.23 1.39 -0.07
5 0.7319 14446.89 0.12 82.48 -0.07
6 0.8031 14537.44 0.37 -72.02 0.08
7 0.8192 14373.37 0.00 -104.90 -0.03
8 0.8902 12932.04 -0.12 -226.78 -0.07
9 0.8904 12927.49 -0.12 -226.97 -0.07
10 0.9721 10243.89 -0.19 -301.00 -0.04
11 0.9722 10239.78 -0.05 -301.05 -0.07
12 0.9723 10235.53 -0.06 -301.02 -0.02
13 0.9808 9929.11 0.08 -303.98 -0.28
14 0.9809 9925.98 -0.08 -303.64 0.09
15 0.9995 9247.72 0.04 -306.40 0.04
16 0.9997 9242.99 0.01 -306.35 0.07
17 1.0516 7443.11 -0.12 -289.63 0.12
18 1.0706 6855.31 -0.18 -275.30 0.08
19 1.0707 6850.59 -0.07 -275.10 0.12
20 1.1228 5566.82 0.03 -216.62 0.05
21 1.1390 5285.68 0.06 -193.63 0.05
22 1.2157 4893.60 0.15 -68.95 0.19
23 1.2157 4893.79 0.06 -68.96 0.08
24 1.2183 4908.66 -0.08 -64.63 0.03
25 1.2320 5019.85 0.09 -41.30 0.04
26 1.8078 23552.55 -0.04 -383.03 -0.02
27 1.8624 22765.93 -0.06 -488.03 0.04
28 1.8897 22118.29 0.12 -531.20 -0.11
29 1.8900 22110.87 -0.21 -531.50 -0.09
30 1.8952 21970.77 -0.16 -538.80 -0.05
31 1.8954 21965.36 0.01 -538.97 0.03
32 1.9609 19866.22 0.04 -602.46 0.01
33 1.9663 19673.22 0.03 -605.23 -0.02
34 2.1028 15116.54 0.17 -545.93 -0.10
35 2.1140 14847.43 0.10 -531.34 0.00
36 2.1277 14557.08 0.17 -512.44 -0.12
37 2.1932 13806.15 -0.12 -405.63 0.17
38 2.8291 32443.13 0.07 -729.69 0.06
39 2.8482 32178.29 0.11 -767.22 -0.05
40 3.0721 25148.58 -0.19 -885.25 -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.
15VK165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.984 39.994 39.974 ecceobj 0.261 0.261 0.261 incobj 3.117 3.117 3.117 qmin 29.001 29.001 28.933 qmax 50.598 50.578 50.540 amean 39.455 39.455 39.455 amin 38.990 38.974 38.996 amax 40.001 40.006 39.995 emean 0.249 0.249 0.249 emin 0.234 0.233 0.234 emax 0.265 0.265 0.265 imean 2.234 2.492 2.199 imin 1.636 1.668 1.241 imax 3.222 3.482 3.261 excite_mean 0.252 0.253 0.252 fracstop 1.000 1.000 1.000 cjmean 2.978 2.978 2.978 libcent 0 180.2 179.9 180.7 libamp 0 87.8 91.9 84.7 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 240.9 256.2 207.1 kozaiamp 179.9 179.9 135.4