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: 15VO166 # Created Sun Dec 22 02:10:34 2024 # Orbit generated from Bernstein formalism # Fitting 37 observations of 37 # Arc: 3.07y # First observation: 2014/11/17 # Last observation: 2017/12/13 Preliminary a, adot, b, bdot, g, gdot: 0.000044 0.006913 -0.000008 -0.001333 0.012182 0.000000 # Chi-squared of fit: 21.33 DOF: 68 RMS: 0.13 # Min/Max residuals: -0.38 0.35 # Exact a, adot, b, bdot, g, gdot: 8.434432E-06 7.012544E-03 -1.756129E-06 -1.352428E-03 1.231151E-02 3.946548E-03 # Covariance matrix: 2.7006E-13 -2.7198E-13 -1.6383E-14 3.4423E-14 -1.9685E-13 -8.9433E-12 -2.7198E-13 3.7646E-13 2.8444E-14 -5.8908E-14 2.9848E-13 1.5341E-11 -1.6383E-14 2.8444E-14 1.5563E-13 -8.9271E-14 2.4306E-14 1.4269E-12 3.4423E-14 -5.8908E-14 -8.9271E-14 7.3609E-14 -5.2377E-14 -2.9270E-12 -1.9685E-13 2.9848E-13 2.4306E-14 -5.2377E-14 3.5812E-13 1.3553E-11 -8.9433E-12 1.5341E-11 1.4269E-12 -2.9270E-12 1.3553E-11 7.6343E-10 # lat0 lon0 xBary yBary zBary JD0 -2.773935 47.685363 -0.118534 -0.047385 -0.981193 2456978.880868 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 72.92765 +/- 0.544 Argument of Peri: 66.17893 +/- 0.196 Long of Asc Node: 213.88387 +/- 0.003 Inclination: 11.28123 +/- 0.002 Eccentricity: 0.48831711 +/- 0.0021 Semi-Major Axis: 75.51414451 +/- 0.2036 Time of Perihelion: 2408415.8722 +/- 304.3 Perihelion: 38.63929566 +/- 0.1903 Aphelion: 112.38899336 +/- 0.3423 Period (y) 656.2218 +/- 2.65 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 55.18709235 +/- 0.0026 Ecliptic Y 60.79979938 +/- 0.0029 Ecliptic Z -3.93107286 +/- 0.0002 Ecliptic XDOT -0.00057709 +/- 0.0000 Ecliptic YDOT 0.00168232 +/- 0.0000 Ecliptic ZDOT -0.00034277 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 82.20513427 +/- 0.0028 Geocenter to KBO 81.22482963 +/- 0.0039 # Hcoef: 5.90
The following table shows the complete astrometric record for 15VO166. 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 (15VO166) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.38009 03 04 05.844 +14 26 29.83 24.9r 15VO166 568 C~2lVf 2014 11 17.49387 03 04 05.522 +14 26 28.41 24.6r 15VO166 568 C~2lVf 2014 11 19.28114 03 04 00.858 +14 26 08.10 24.9r 15VO166 568 C~2lVf 2014 11 23.38468 03 03 50.198 +14 25 22.20 25.3r 15VO166 568 C~2lVf 2015 08 12.58178 03 08 24.791 +14 42 51.17 24.6w 15VO166 568 C~2lVf 2015 08 12.58594 03 08 24.782 +14 42 51.32 25.3w 15VO166 568 C~2lVf 2015 09 07.54100 03 08 15.343 +14 40 58.58 25.1w 15VO166 568 C~2lVf 2015 10 07.48475 03 07 28.363 +14 36 33.30 25.3w 15VO166 568 C~2lVf 2015 10 08.48746 03 07 26.236 +14 36 22.67 25.3w 15VO166 568 C~2lVf 2015 10 08.55734 03 07 26.130 +14 36 21.86 25.0w 15VO166 568 C~2lVf 2015 10 08.57055 03 07 26.086 +14 36 21.85 25.1w 15VO166 568 C~2lVf 2015 11 06.30199 03 06 16.191 +14 30 50.69 24.8r 15VO166 568 C~2lVf 2015 11 06.36535 03 06 16.024 +14 30 50.22 24.9r 15VO166 568 C~2lVf 2015 11 06.43596 03 06 15.831 +14 30 49.11 25.2r 15VO166 568 C~2lVf 2015 11 06.50529 03 06 15.656 +14 30 48.24 24.7r 15VO166 568 C~2lVf 2015 11 07.52528 03 06 12.957 +14 30 36.49 24.9w 15VO166 568 C~2lVf 2015 11 17.29127 03 05 47.246 +14 28 43.06 25.1w 15VO166 568 C~2lVf 2015 11 17.34053 03 05 47.103 +14 28 42.50 25.0w 15VO166 568 C~2lVf 2015 12 06.41351 03 04 59.103 +14 25 20.33 25.2w 15VO166 568 C~2lVf 2016 01 01.40134 03 04 07.476 +14 22 02.28 25.4w 15VO166 568 C~2lVf 2016 01 07.34755 03 03 59.106 +14 21 33.55 24.7w 15VO166 568 C~2lVf 2016 02 04.27768 03 03 41.619 +14 20 58.03 25.3w 15VO166 568 C~2lVf 2016 02 10.26747 03 03 42.908 +14 21 12.07 25.2w 15VO166 568 C~2lVf 2016 09 25.60090 03 09 28.693 +14 40 24.55 25.2w 15VO166 568 C~2lVf 2016 10 10.53578 03 08 59.382 +14 37 52.96 25.2w 15VO166 568 C~2lVf 2016 10 10.54400 03 08 59.360 +14 37 52.91 15VO166 568 C~2lVf 2016 11 03.55656 03 08 00.888 +14 33 17.80 25.2w 15VO166 568 C~2lVf 2016 12 28.38005 03 05 52.125 +14 24 28.66 25.8w 15VO166 568 C~2lVf 2016 12 28.38265 03 05 52.101 +14 24 28.83 26.2w 15VO166 568 C~2lVf 2016 12 29.34821 03 05 50.514 +14 24 23.06 26.0w 15VO166 568 C~2lVf 2017 01 01.24148 03 05 45.959 +14 24 07.20 25.4w 15VO166 568 C~2lVf 2017 01 02.35263 03 05 44.279 +14 24 01.64 25.1w 15VO166 568 C~2lVf 2017 01 02.35523 03 05 44.276 +14 24 01.49 25.1w 15VO166 568 C~2lVf 2017 01 26.25843 03 05 21.775 +14 22 59.77 25.9w 15VO166 568 C~2lVf 2017 09 17.60641 03 11 19.417 +14 43 31.69 25.6w 15VO166 568 C~2lVf 2017 12 13.39993 03 08 00.347 +14 28 22.89 25.2w 15VO166 568 C~2lVf 2017 12 13.43720 03 08 00.264 +14 28 22.61 25.5w 15VO166 568 C~2lVf
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 0.12 0.00 0.00
2 0.0003 -4.89 -0.17 -0.07 -0.03
3 0.0052 -75.61 -0.02 -0.85 0.01
4 0.0164 -237.12 -0.08 -2.11 0.07
5 0.7343 3884.61 0.01 -87.25 -0.38
6 0.7343 3884.53 -0.09 -87.07 -0.19
7 0.8054 3722.01 0.01 -158.31 0.14
8 0.8874 2993.53 -0.17 -227.72 0.06
9 0.8901 2960.92 -0.27 -229.52 0.18
10 0.8903 2959.22 0.35 -229.88 -0.06
11 0.8903 2958.60 0.17 -229.72 0.13
12 0.9690 1891.81 0.04 -270.57 -0.13
13 0.9692 1889.35 0.14 -270.35 0.12
14 0.9694 1886.35 -0.01 -270.65 -0.13
15 0.9695 1883.66 0.12 -270.79 -0.22
16 0.9723 1842.75 -0.06 -271.34 0.11
17 0.9991 1452.54 0.03 -277.91 0.03
18 0.9992 1450.39 -0.14 -277.87 0.07
19 1.0514 724.43 0.32 -280.38 -0.15
20 1.1226 -51.19 -0.05 -263.67 0.28
21 1.1389 -176.02 -0.13 -257.65 0.09
22 1.2153 -430.04 -0.21 -221.44 0.08
23 1.2317 -408.15 0.33 -213.14 -0.02
24 1.8569 4737.58 0.04 -480.10 -0.13
25 1.8978 4286.83 -0.03 -510.69 0.02
26 1.8978 4286.51 -0.07 -510.65 0.07
27 1.9635 3394.59 -0.17 -544.61 -0.02
28 2.1136 1450.80 0.12 -542.00 -0.19
29 2.1136 1450.51 -0.10 -541.74 0.07
30 2.1163 1426.75 -0.01 -540.95 -0.07
31 2.1242 1358.76 0.10 -538.02 -0.03
32 2.1272 1333.77 -0.02 -536.66 0.15
33 2.1272 1333.68 -0.05 -536.79 0.01
34 2.1927 1002.38 -0.09 -506.22 0.12
35 2.8343 6336.15 0.08 -733.60 -0.04
36 3.0719 3306.67 -0.02 -826.27 -0.03
37 3.0720 3305.44 -0.01 -826.21 0.01
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.
15VO166 quality flag:2 Type: 4:1EEE SCATNEAR SCATNEAR axisobj 76.390 77.018 75.783 ecceobj 0.489 0.495 0.483 incobj 11.210 11.211 11.210 qmin 37.328 37.397 37.857 qmax 116.713 117.566 114.944 amean 75.870 76.305 75.245 amin 74.629 74.445 74.205 amax 77.540 77.904 76.852 emean 0.494 0.496 0.484 emin 0.481 0.479 0.473 emax 0.508 0.510 0.497 imean 11.283 12.059 12.075 imin 10.577 11.414 11.551 imax 11.994 13.112 12.725 excite_mean 0.532 0.539 0.527 fracstop 1.000 1.000 1.000 cjmean 3.103 3.097 3.105 libcent 0 272.1 -180.0 -180.0 libamp 0 53.8 -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 119.8 193.1 168.6 kozaiamp 55.1 180.0 180.0