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: 15VF167 # Created Sun Dec 22 02:10:34 2024 # Orbit generated from Bernstein formalism # Fitting 41 observations of 41 # Arc: 2.19y # First observation: 2014/11/17 # Last observation: 2017/01/26 Preliminary a, adot, b, bdot, g, gdot: -0.000100 0.022108 -0.000028 0.016382 0.024983 0.000000 # Chi-squared of fit: 5.79 DOF: 76 RMS: 0.07 # Min/Max residuals: -0.18 0.16 # Exact a, adot, b, bdot, g, gdot: 1.411139E-05 2.205890E-02 1.026022E-05 1.639007E-02 2.499886E-02 -2.281124E-03 # Covariance matrix: 2.3593E-13 -2.7035E-13 5.0334E-14 -1.3123E-13 -1.4050E-13 -3.3479E-12 -2.7035E-13 5.1311E-13 -1.3195E-13 3.4481E-13 2.8863E-13 8.7999E-12 5.0334E-14 -1.3195E-13 1.9915E-13 -2.0014E-13 -7.8066E-14 -2.6926E-12 -1.3123E-13 3.4481E-13 -2.0014E-13 3.4886E-13 2.0289E-13 7.0438E-12 -1.4050E-13 2.8863E-13 -7.8066E-14 2.0289E-13 2.8095E-13 5.1737E-12 -3.3479E-12 8.7999E-12 -2.6926E-12 7.0438E-12 5.1737E-12 1.7979E-10 # lat0 lon0 xBary yBary zBary JD0 -2.071386 48.058173 -0.110242 -0.035396 -0.982678 2456978.772168 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 347.78604 +/- 0.064 Argument of Peri: 18.69234 +/- 0.120 Long of Asc Node: 50.93454 +/- 0.000 Inclination: 36.66146 +/- 0.001 Eccentricity: 0.27520061 +/- 0.0002 Semi-Major Axis: 55.65002355 +/- 0.0087 Time of Perihelion: 2462115.0846 +/- 26.7 Perihelion: 40.33510336 +/- 0.0139 Aphelion: 70.96494374 +/- 0.0166 Period (y) 415.1511 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.29093294 +/- 0.0006 Ecliptic Y 30.54143219 +/- 0.0006 Ecliptic Z -1.44545414 +/- 0.0000 Ecliptic XDOT -0.00192476 +/- 0.0000 Ecliptic YDOT 0.00147230 +/- 0.0000 Ecliptic ZDOT 0.00180298 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.98369723 +/- 0.0006 Geocenter to KBO 40.00181986 +/- 0.0008 # Hcoef: 8.43
The following table shows the complete astrometric record for 15VF167. 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 (15VF167) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27139 03 04 46.582 +15 13 10.87 24.6r 15VF167 568 C~2lVi 2014 11 17.38009 03 04 46.001 +15 13 09.65 24.6r 15VF167 568 C~2lVi 2014 11 17.49387 03 04 45.402 +15 13 08.22 24.7r 15VF167 568 C~2lVi 2014 11 19.28114 03 04 36.016 +15 12 47.44 24.7r 15VF167 568 C~2lVi 2014 11 23.38468 03 04 14.648 +15 12 00.85 24.5r 15VF167 568 C~2lVi 2015 08 11.59273 03 13 53.869 +16 35 03.55 24.8w 15VF167 568 C~2lVi 2015 09 06.62350 03 13 43.046 +16 37 35.17 24.8w 15VF167 568 C~2lVi 2015 09 12.51312 03 13 31.658 +16 37 35.62 24.9w 15VF167 568 C~2lVi 2015 10 07.43992 03 12 11.156 +16 35 39.39 24.8w 15VF167 568 C~2lVi 2015 10 07.44703 03 12 11.136 +16 35 39.33 24.8w 15VF167 568 C~2lVi 2015 10 08.45165 03 12 06.938 +16 35 31.19 24.6w 15VF167 568 C~2lVi 2015 10 08.51072 03 12 06.685 +16 35 30.68 25.1w 15VF167 568 C~2lVi 2015 11 07.35903 03 09 40.511 +16 30 15.77 24.5r 15VF167 568 C~2lVi 2015 11 07.40112 03 09 40.281 +16 30 15.26 24.3r 15VF167 568 C~2lVi 2015 11 07.44330 03 09 40.053 +16 30 14.74 24.2r 15VF167 568 C~2lVi 2015 11 10.52886 03 09 23.564 +16 29 37.85 24.7w 15VF167 568 C~2lVi 2015 11 17.37547 03 08 46.962 +16 28 16.96 24.6w 15VF167 568 C~2lVi 2015 11 17.42215 03 08 46.709 +16 28 16.44 24.5w 15VF167 568 C~2lVi 2015 12 06.38432 03 07 09.609 +16 24 54.79 24.8w 15VF167 568 C~2lVi 2015 12 13.31874 03 06 37.461 +16 23 56.35 24.1w 15VF167 568 C~2lVi 2015 12 13.37723 03 06 37.214 +16 23 55.92 24.8w 15VF167 568 C~2lVi 2016 01 01.37186 03 05 24.910 +16 22 23.54 24.9w 15VF167 568 C~2lVi 2016 01 07.31862 03 05 08.056 +16 22 19.10 24.9w 15VF167 568 C~2lVi 2016 02 10.28486 03 04 36.842 +16 26 22.19 24.6w 15VF167 568 C~2lVi 2016 10 10.40808 03 15 59.552 +17 49 42.11 24.8w 15VF167 568 C~2lVi 2016 10 10.46643 03 15 59.301 +17 49 41.79 24.6w 15VF167 568 C~2lVi 2016 10 27.49100 03 14 37.742 +17 47 07.31 24.8w 15VF167 568 C~2lVi 2016 10 27.50259 03 14 37.678 +17 47 07.22 24.6w 15VF167 568 C~2lVi 2016 11 02.59707 03 14 05.793 +17 46 01.49 24.6w 15VF167 568 C~2lVi 2016 11 02.60863 03 14 05.734 +17 46 01.32 25.0w 15VF167 568 C~2lVi 2016 11 03.51606 03 14 00.914 +17 45 51.25 24.6w 15VF167 568 C~2lVi 2016 11 03.52763 03 14 00.856 +17 45 51.14 24.6w 15VF167 568 C~2lVi 2016 12 28.38756 03 09 34.931 +17 37 14.79 24.7w 15VF167 568 C~2lVi 2016 12 29.35312 03 09 31.639 +17 37 11.01 24.5w 15VF167 568 C~2lVi 2016 12 29.37514 03 09 31.562 +17 37 10.98 24.8w 15VF167 568 C~2lVi 2016 12 29.38063 03 09 31.538 +17 37 10.94 24.9w 15VF167 568 C~2lVi 2017 01 01.25010 03 09 22.187 +17 37 01.31 24.8w 15VF167 568 C~2lVi 2017 01 02.36014 03 09 18.733 +17 36 58.31 24.9w 15VF167 568 C~2lVi 2017 01 02.38235 03 09 18.662 +17 36 58.18 24.8w 15VF167 568 C~2lVi 2017 01 02.38784 03 09 18.642 +17 36 58.20 24.9w 15VF167 568 C~2lVi 2017 01 26.27742 03 08 32.338 +17 37 42.42 24.7w 15VF167 568 C~2lVi
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 -0.03 0.00 0.02
2 0.0003 -8.42 -0.02 1.14 0.06
3 0.0006 -17.15 0.10 2.16 -0.05
4 0.0055 -153.47 -0.05 19.63 0.10
5 0.0167 -463.61 -0.07 60.19 0.03
6 0.7319 8935.12 0.04 2596.99 -0.11
7 0.8032 8825.15 0.11 2784.61 0.05
8 0.8193 8667.18 0.02 2828.47 -0.03
9 0.8875 7519.02 -0.18 3024.36 0.04
10 0.8875 7518.73 -0.04 3024.38 -0.00
11 0.8903 7458.32 -0.05 3032.64 -0.01
12 0.8905 7454.67 -0.04 3033.12 -0.04
13 0.9722 5343.27 0.14 3293.79 0.07
14 0.9723 5339.94 0.11 3294.19 0.06
15 0.9724 5336.64 0.11 3294.58 0.04
16 0.9809 5098.16 -0.01 3323.07 -0.08
17 0.9996 4569.10 -0.04 3387.59 -0.04
18 0.9997 4565.45 -0.03 3388.07 -0.02
19 1.0516 3165.65 0.16 3573.67 -0.04
20 1.0706 2704.54 -0.15 3643.76 -0.03
21 1.0708 2701.00 0.11 3644.32 -0.09
22 1.1228 1674.76 -0.01 3840.67 -0.08
23 1.1391 1440.27 -0.15 3903.10 -0.02
24 1.2321 1075.39 0.04 4260.61 0.06
25 1.8977 11863.14 -0.06 6451.01 -0.03
26 1.8979 11859.59 0.07 6451.64 0.04
27 1.9445 10691.25 0.01 6608.25 0.02
28 1.9445 10690.34 -0.03 6608.40 0.07
29 1.9612 10232.34 -0.03 6665.04 0.01
30 1.9612 10231.48 0.00 6665.10 -0.04
31 1.9637 10162.22 -0.09 6673.56 -0.04
32 1.9637 10161.39 -0.02 6673.68 -0.03
33 2.1139 6353.38 -0.09 7189.85 -0.02
34 2.1166 6306.98 0.08 7198.90 -0.02
35 2.1166 6305.91 0.09 7199.17 0.04
36 2.1167 6305.57 0.01 7199.23 0.04
37 2.1245 6174.06 0.08 7226.02 -0.01
38 2.1276 6125.64 -0.00 7236.46 0.02
39 2.1276 6124.62 -0.04 7236.61 -0.04
40 2.1276 6124.35 -0.07 7236.71 0.00
41 2.1930 5498.27 0.03 7458.47 0.10
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.
15VF167 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE Type: 5:2EII axisobj 56.105 56.124 56.087 ecceobj 0.279 0.280 0.279 incobj 36.569 36.569 36.569 qmin 32.974 39.987 33.812 qmax 79.027 71.825 78.378 amean 55.461 55.461 55.461 amin 54.778 54.872 54.768 amax 56.312 56.124 56.360 emean 0.304 0.227 0.320 emin 0.237 0.204 0.244 emax 0.405 0.280 0.391 imean 34.731 36.663 34.273 imin 31.600 35.690 32.307 imax 36.488 37.109 36.380 excite_mean 0.648 0.639 0.650 fracstop 1.000 1.000 1.000 cjmean 2.664 2.664 2.664 libcent 0 179.0 179.8 179.6 libamp 0 104.1 118.3 94.6 libcent 1 -180.0 191.6 -180.0 libamp 1 -180.0 118.9 -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 263.9 7.3 267.2 kozaiamp 180.0 180.0 180.0