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: 15VV167 # Created Sun Apr 27 01:10:40 2025 # Orbit generated from Bernstein formalism # Fitting 27 observations of 27 # Arc: 2.35y # First observation: 2015/08/11 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000138 0.028085 -0.000017 0.005788 0.026424 0.000000 # Chi-squared of fit: 5.29 DOF: 48 RMS: 0.08 # Min/Max residuals: -0.15 0.20 # Exact a, adot, b, bdot, g, gdot: 1.725462E-05 2.750919E-02 3.206617E-06 5.667884E-03 2.604216E-02 -9.936973E-04 # Covariance matrix: 2.1864E-13 3.3164E-14 -1.4399E-15 2.5722E-14 1.6284E-13 2.2790E-12 3.3164E-14 4.7365E-13 -2.9158E-14 1.4408E-13 3.0433E-13 1.2406E-11 -1.4399E-15 -2.9158E-14 1.0684E-13 -9.1756E-14 -1.8522E-14 -1.1741E-12 2.5722E-14 1.4408E-13 -9.1756E-14 1.8203E-13 1.0720E-13 5.4280E-12 1.6284E-13 3.0433E-13 -1.8522E-14 1.0720E-13 3.1783E-13 9.2843E-12 2.2790E-12 1.2406E-11 -1.1741E-12 5.4280E-12 9.2843E-12 4.6609E-10 # lat0 lon0 xBary yBary zBary JD0 -2.891702 50.700023 1.015168 0.002057 0.038289 2457246.085349 # Heliocentric elements and errors Epoch: 2457240.5000 = 2015/08/06 Mean Anomaly: 337.87164 +/- 0.219 Argument of Peri: 15.44553 +/- 0.306 Long of Asc Node: 63.01980 +/- 0.001 Inclination: 11.93668 +/- 0.001 Eccentricity: 0.14469042 +/- 0.0004 Semi-Major Axis: 44.12428969 +/- 0.0052 Time of Perihelion: 2463821.0425 +/- 65.0 Perihelion: 37.73992758 +/- 0.0180 Aphelion: 50.50865180 +/- 0.0185 Period (y) 293.1061 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.04764895 +/- 0.0005 Ecliptic Y 29.00438287 +/- 0.0006 Ecliptic Z -1.93702377 +/- 0.0000 Ecliptic XDOT -0.00228711 +/- 0.0000 Ecliptic YDOT 0.00176796 +/- 0.0000 Ecliptic ZDOT 0.00060044 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.37174748 +/- 0.0006 Geocenter to KBO 38.39927840 +/- 0.0008 # Hcoef: 8.67
The following table shows the complete astrometric record for 15VV167. 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 (15VV167) followed by the observatory code and reference code for the source of the astrometry.
2015 08 11.58456 03 16 13.595 +15 08 15.50 24.6w 15VV167 568 C~2lVk 2015 09 06.63168 03 16 11.225 +15 07 31.28 24.9w 15VV167 568 C~2lVk 2015 09 12.52133 03 16 01.223 +15 06 46.04 24.6w 15VV167 568 C~2lVk 2015 10 07.45992 03 14 44.378 +15 01 36.99 25.3w 15VV167 568 C~2lVk 2015 10 08.46335 03 14 40.261 +15 01 21.36 24.4w 15VV167 568 C~2lVk 2015 10 08.52236 03 14 40.009 +15 01 20.42 24.5w 15VV167 568 C~2lVk 2015 11 07.36952 03 12 14.512 +14 52 33.79 24.3r 15VV167 568 C~2lVk 2015 11 07.41164 03 12 14.286 +14 52 33.05 24.2r 15VV167 568 C~2lVk 2015 11 07.45387 03 12 14.057 +14 52 32.27 24.2r 15VV167 568 C~2lVk 2015 11 17.38710 03 11 20.696 +14 49 32.44 24.9w 15VV167 568 C~2lVk 2015 11 17.43381 03 11 20.457 +14 49 31.57 25.5w 15VV167 568 C~2lVk 2015 12 06.39596 03 09 42.774 +14 44 26.22 24.6w 15VV167 568 C~2lVk 2015 12 13.33048 03 09 10.550 +14 42 55.21 24.7w 15VV167 568 C~2lVk 2015 12 13.38903 03 09 10.293 +14 42 54.51 25.0w 15VV167 568 C~2lVk 2016 01 01.38342 03 07 58.439 +14 40 07.10 24.6w 15VV167 568 C~2lVk 2016 01 02.34977 03 07 55.550 +14 40 02.32 24.7w 15VV167 568 C~2lVk 2016 01 07.33018 03 07 42.019 +14 39 43.32 24.6w 15VV167 568 C~2lVk 2016 02 05.27611 03 07 12.720 +14 41 29.13 25.0w 15VV167 568 C~2lVk 2016 02 10.29646 03 07 16.701 +14 42 25.40 25.9w 15VV167 568 C~2lVk 2016 09 07.56785 03 22 11.487 +15 51 03.55 24.7w 15VV167 568 C~2lVk 2016 09 27.50655 03 21 23.874 +15 47 59.34 24.8w 15VV167 568 C~2lVk 2017 01 02.42106 03 13 54.492 +15 24 43.89 24.7w 15VV167 568 C~2lVk 2017 01 26.29235 03 13 10.028 +15 24 37.93 24.8w 15VV167 568 C~2lVk 2017 01 26.30729 03 13 10.022 +15 24 38.07 24.7w 15VV167 568 C~2lVk 2017 01 26.33541 03 13 10.004 +15 24 38.23 24.4w 15VV167 568 C~2lVk 2017 12 16.35926 03 21 06.495 +16 11 35.15 24.2w 15VV167 568 C~2lVk 2017 12 16.37785 03 21 06.397 +16 11 34.87 24.6w 15VV167 568 C~2lVk
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 -0.11 0.00 0.05
2 0.0713 -44.67 -0.15 -33.73 0.18
3 0.0874 -196.30 -0.04 -39.58 0.05
4 0.1557 -1351.44 0.07 -46.30 -0.14
5 0.1585 -1413.10 0.01 -45.72 -0.05
6 0.1586 -1416.87 -0.03 -45.66 -0.05
7 0.2403 -3590.02 0.08 3.13 -0.01
8 0.2405 -3593.37 0.13 3.28 0.00
9 0.2406 -3596.78 0.15 3.41 -0.00
10 0.2678 -4390.73 -0.01 35.73 0.01
11 0.2679 -4394.30 0.20 35.81 -0.09
12 0.3198 -5842.02 -0.02 120.14 -0.05
13 0.3388 -6317.19 -0.05 157.94 -0.01
14 0.3390 -6320.97 0.08 158.27 -0.04
15 0.3910 -7371.27 -0.10 277.88 -0.05
16 0.3936 -7412.98 -0.15 284.60 0.05
17 0.4072 -7607.42 -0.13 319.37 -0.00
18 0.4865 -7988.65 0.08 536.40 0.11
19 0.5002 -7917.71 -0.03 574.96 0.08
20 1.0759 5661.73 0.01 1148.64 -0.00
21 1.1305 4949.87 -0.00 1145.49 0.01
22 1.3959 -1683.19 0.02 1481.78 -0.03
23 1.4612 -2305.02 -0.06 1645.80 -0.07
24 1.4613 -2305.06 0.02 1645.96 -0.02
25 1.4613 -2305.27 0.06 1646.18 0.00
26 2.3485 5069.29 0.08 2578.92 0.03
27 2.3485 5067.85 -0.12 2579.01 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.
15VV167 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.573 44.581 44.564 ecceobj 0.150 0.150 0.150 incobj 11.906 11.906 11.906 qmin 37.017 37.046 36.948 qmax 51.628 51.615 51.777 amean 44.187 44.187 44.187 amin 43.806 43.807 43.808 amax 44.595 44.602 44.625 emean 0.146 0.146 0.148 emin 0.133 0.134 0.134 emax 0.158 0.158 0.161 imean 10.349 10.313 10.248 imin 9.672 9.603 9.515 imax 10.981 10.969 10.895 excite_mean 0.231 0.231 0.231 fracstop 1.000 1.000 1.000 cjmean 3.039 3.039 3.039 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -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 173.6 174.8 172.8 kozaiamp 180.0 180.0 179.9