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: 15VO164 # Created Fri Nov 22 02:10:31 2024 # Orbit generated from Bernstein formalism # Fitting 35 observations of 35 # Arc: 4.52y # First observation: 2015/08/11 # Last observation: 2020/02/18 Preliminary a, adot, b, bdot, g, gdot: 0.000103 0.048490 0.000099 0.012026 0.036833 0.000000 # Chi-squared of fit: 2.84 DOF: 64 RMS: 0.05 # Min/Max residuals: -0.15 0.21 # Exact a, adot, b, bdot, g, gdot: 2.165750E-05 4.779154E-02 5.233717E-06 1.192202E-02 3.614111E-02 3.189925E-04 # Covariance matrix: 1.4108E-13 -5.6274E-14 1.0020E-14 -1.8836E-14 6.9734E-14 -3.6272E-13 -5.6274E-14 2.6115E-13 -2.7601E-14 7.2714E-14 9.8520E-14 1.4546E-12 1.0020E-14 -2.7601E-14 6.9485E-14 -4.0950E-14 -4.4996E-15 -1.9833E-13 -1.8836E-14 7.2714E-14 -4.0950E-14 6.2746E-14 2.0254E-14 5.0193E-13 6.9734E-14 9.8520E-14 -4.4996E-15 2.0254E-14 1.3328E-13 4.2084E-13 -3.6272E-13 1.4546E-12 -1.9833E-13 5.0193E-13 4.2084E-13 1.0003E-11 # lat0 lon0 xBary yBary zBary JD0 -2.656777 49.663799 1.015695 0.001017 0.019165 2457246.131409 # Heliocentric elements and errors Epoch: 2457240.5000 = 2015/08/06 Mean Anomaly: 356.08026 +/- 0.008 Argument of Peri: 356.68889 +/- 0.016 Long of Asc Node: 58.15511 +/- 0.000 Inclination: 14.16857 +/- 0.000 Eccentricity: 0.30142975 +/- 0.0000 Semi-Major Axis: 39.52315700 +/- 0.0023 Time of Perihelion: 2458228.6682 +/- 2.1 Perihelion: 27.60970168 +/- 0.0021 Aphelion: 51.43661231 +/- 0.0032 Period (y) 248.4767 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 18.64813897 +/- 0.0002 Ecliptic Y 20.39640407 +/- 0.0002 Ecliptic Z -1.28238080 +/- 0.0000 Ecliptic XDOT -0.00271904 +/- 0.0000 Ecliptic YDOT 0.00238736 +/- 0.0000 Ecliptic ZDOT 0.00090111 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 27.66606019 +/- 0.0002 Geocenter to KBO 27.66931950 +/- 0.0003 # Hcoef: 8.66
The following table shows the complete astrometric record for 15VO164. 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 (15VO164) followed by the observatory code and reference code for the source of the astrometry.
2015 08 11.63062 03 11 50.000 +15 05 28.18 22.8w 15VO164 568 C~2lVX 2015 08 12.57765 03 11 51.749 +15 05 35.91 23.3w 15VO164 568 C~2lVX 2015 09 07.53691 03 11 49.248 +15 05 54.78 23.5w 15VO164 568 C~2lVX 2015 09 12.53366 03 11 37.993 +15 05 17.82 23.5w 15VO164 568 C~2lVX 2015 10 07.47747 03 09 55.676 +14 59 30.67 23.1w 15VO164 568 C~2lVX 2015 10 08.48165 03 09 50.150 +14 59 12.01 23.0w 15VO164 568 C~2lVX 2015 10 08.53987 03 09 49.827 +14 59 10.90 23.1w 15VO164 568 C~2lVX 2015 10 08.55151 03 09 49.758 +14 59 10.67 23.1w 15VO164 568 C~2lVX 2015 10 08.56473 03 09 49.684 +14 59 10.43 23.2w 15VO164 568 C~2lVX 2015 11 06.29678 03 06 42.071 +14 48 53.47 23.0r 15VO164 568 C~2lVX 2015 11 06.36009 03 06 41.615 +14 48 52.08 22.8r 15VO164 568 C~2lVX 2015 11 06.43072 03 06 41.096 +14 48 50.41 22.8r 15VO164 568 C~2lVX 2015 11 06.50005 03 06 40.592 +14 48 48.92 22.9r 15VO164 568 C~2lVX 2015 11 07.51946 03 06 33.295 +14 48 25.79 23.0w 15VO164 568 C~2lVX 2015 11 17.28542 03 05 23.229 +14 44 48.77 23.4w 15VO164 568 C~2lVX 2015 11 17.33469 03 05 22.868 +14 44 47.67 23.1w 15VO164 568 C~2lVX 2015 12 13.34802 03 02 31.210 +14 36 53.67 23.4w 15VO164 568 C~2lVX 2015 12 13.40657 03 02 30.867 +14 36 52.90 23.4w 15VO164 568 C~2lVX 2016 01 01.40134 03 01 00.304 +14 34 04.44 23.5w 15VO164 568 C~2lVX 2016 02 04.27768 03 00 15.277 +14 37 51.85 23.6w 15VO164 568 C~2lVX 2016 02 10.26747 03 00 24.822 +14 39 46.95 23.4w 15VO164 568 C~2lVX 2016 09 07.56206 03 22 12.434 +16 29 34.32 15VO164 568 C~2lVX 2016 09 26.62090 03 21 16.095 +16 27 05.74 23.5w 15VO164 568 C~2lVX 2016 10 10.39070 03 20 08.310 +16 23 46.86 23.5w 15VO164 568 C~2lVX 2016 10 10.44903 03 20 07.979 +16 23 45.93 23.5w 15VO164 568 C~2lVX 2016 10 27.49679 03 18 20.651 +16 18 26.17 23.4w 15VO164 568 C~2lVX 2016 11 02.60285 03 17 37.995 +16 16 19.86 23.1w 15VO164 568 C~2lVX 2016 11 03.52184 03 17 31.467 +16 16 00.67 23.4w 15VO164 568 C~2lVX 2016 12 24.30148 03 11 55.791 +16 01 13.97 23.3w 15VO164 568 C~2lVX 2017 01 02.37586 03 11 16.115 +16 00 09.20 23.4w 15VO164 568 C~2lVX 2017 01 02.40371 03 11 16.001 +16 00 09.08 23.5w 15VO164 568 C~2lVX 2017 01 26.27054 03 10 23.908 +16 00 57.68 23.6w 15VO164 568 C~2lVX 2017 01 26.29235 03 10 23.899 +16 00 57.89 23.7w 15VO164 568 C~2lVX 2020 02 18.108990 03 42 07.789 +20 08 16.23 23.2G 15VO164 G37 C~3jl6 2020 02 18.228000 03 42 07.983 +20 08 17.63 15VO164 G37 C~3jl6
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 -0.00
2 0.0026 26.47 0.21 0.70 -0.10
3 0.0737 -3.40 -0.10 28.54 0.01
4 0.0873 -170.36 -0.07 36.41 0.01
5 0.1556 -1691.40 -0.01 98.89 -0.01
6 0.1584 -1773.55 -0.01 102.44 0.02
7 0.1585 -1778.35 0.10 102.63 -0.03
8 0.1586 -1779.38 0.06 102.68 -0.03
9 0.1586 -1780.48 0.07 102.74 -0.03
10 0.2373 -4566.24 -0.01 244.59 0.04
11 0.2375 -4572.98 0.04 245.05 0.05
12 0.2376 -4580.68 -0.06 245.49 -0.00
13 0.2378 -4588.12 -0.02 246.05 0.08
14 0.2406 -4696.30 -0.02 252.61 0.03
15 0.2674 -5733.84 0.06 321.32 0.01
16 0.2675 -5739.18 -0.00 321.70 -0.02
17 0.3387 -8267.22 -0.03 551.62 -0.01
18 0.3389 -8272.22 -0.01 552.26 0.02
19 0.3909 -9584.45 -0.04 755.51 0.02
20 0.4836 -10150.10 -0.02 1156.61 -0.01
21 0.5000 -9984.58 0.05 1228.55 -0.08
22 1.0758 9997.28 -0.03 2530.44 0.03
23 1.1280 9173.98 0.02 2593.53 -0.00
24 1.1657 8178.49 -0.04 2651.28 -0.04
25 1.1658 8173.64 0.02 2651.61 -0.03
26 1.2125 6596.52 0.02 2741.29 0.00
27 1.2292 5970.00 -0.03 2778.68 0.00
28 1.2317 5874.16 -0.00 2784.59 0.04
29 1.3708 972.77 0.06 3202.66 -0.01
30 1.3956 404.11 0.02 3292.94 -0.02
31 1.3957 402.49 -0.04 3293.27 0.02
32 1.4610 -308.25 -0.04 3541.30 0.04
33 1.4611 -308.32 0.01 3541.53 0.04
34 4.5215 29909.49 0.06 11237.16 -0.05
35 4.5218 29912.54 -0.05 11237.92 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.
15VO164 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.969 39.978 39.960 ecceobj 0.308 0.308 0.308 incobj 14.140 14.140 14.140 qmin 26.632 26.653 26.613 qmax 52.935 52.886 53.063 amean 39.455 39.454 39.454 amin 38.983 38.979 39.002 amax 40.046 40.039 40.020 emean 0.304 0.304 0.304 emin 0.284 0.283 0.284 emax 0.324 0.322 0.326 imean 12.378 12.415 12.351 imin 11.497 11.517 11.481 imax 13.265 13.274 13.265 excite_mean 0.372 0.372 0.372 fracstop 1.000 1.000 1.000 cjmean 2.894 2.894 2.894 libcent 0 180.1 179.4 179.9 libamp 0 79.4 83.3 77.8 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 169.4 168.7 169.0 kozaiamp 180.0 180.0 180.0