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: 15VV166 # Created Fri Nov 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 33 observations of 33 # Arc: 2.27y # First observation: 2015/09/07 # Last observation: 2017/12/13 Preliminary a, adot, b, bdot, g, gdot: -0.000082 0.019666 -0.000004 -0.000098 0.021839 0.000000 # Chi-squared of fit: 7.09 DOF: 60 RMS: 0.08 # Min/Max residuals: -0.31 0.18 # Exact a, adot, b, bdot, g, gdot: 1.458712E-05 1.950045E-02 -2.728274E-08 -9.871616E-05 2.177909E-02 -5.631100E-04 # Covariance matrix: 1.9518E-13 -3.8384E-14 2.4808E-15 -1.2579E-15 1.3365E-13 1.7732E-12 -3.8384E-14 2.9461E-13 2.9982E-15 -4.2741E-15 1.5103E-13 7.8853E-12 2.4808E-15 2.9982E-15 1.0037E-13 -7.0911E-14 4.6570E-15 1.2676E-13 -1.2579E-15 -4.2741E-15 -7.0911E-14 8.8989E-14 -3.8518E-15 -1.6727E-13 1.3365E-13 1.5103E-13 4.6570E-15 -3.8518E-15 2.4521E-13 6.4365E-12 1.7732E-12 7.8853E-12 1.2676E-13 -1.6727E-13 6.4365E-12 3.0538E-10 # lat0 lon0 xBary yBary zBary JD0 -2.764435 52.358846 0.936136 -0.018273 -0.381501 2457273.125689 # Heliocentric elements and errors Epoch: 2457270.5000 = 2015/09/05 Mean Anomaly: 223.28968 +/- 0.472 Argument of Peri: 45.22660 +/- 0.468 Long of Asc Node: 148.50112 +/- 0.018 Inclination: 2.76359 +/- 0.000 Eccentricity: 0.07949522 +/- 0.0005 Semi-Major Axis: 43.65879078 +/- 0.0042 Time of Perihelion: 2497283.8378 +/- 137.9 Perihelion: 40.18812566 +/- 0.0238 Aphelion: 47.12945590 +/- 0.0239 Period (y) 288.4800 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.97909787 +/- 0.0006 Ecliptic Y 36.04650757 +/- 0.0008 Ecliptic Z -2.21449207 +/- 0.0001 Ecliptic XDOT -0.00198656 +/- 0.0000 Ecliptic YDOT 0.00143422 +/- 0.0000 Ecliptic ZDOT -0.00000893 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.30380974 +/- 0.0008 Geocenter to KBO 45.91559255 +/- 0.0010 # Hcoef: 7.87
The following table shows the complete astrometric record for 15VV166. 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 (15VV166) followed by the observatory code and reference code for the source of the astrometry.
2015 09 07.62490 03 22 44.110 +15 41 09.30 24.7w 15VV166 568 C~2lVg 2015 09 12.48855 03 22 37.295 +15 40 26.47 24.7w 15VV166 568 C~2lVg 2015 10 07.53269 03 21 33.943 +15 35 11.92 24.7w 15VV166 568 C~2lVg 2015 10 07.59208 03 21 33.739 +15 35 11.03 25.3w 15VV166 568 C~2lVg 2015 10 09.57195 03 21 26.957 +15 34 40.55 24.4w 15VV166 568 C~2lVg 2015 11 06.34408 03 19 33.749 +15 26 47.06 24.5r 15VV166 568 C~2lVg 2015 11 06.41470 03 19 33.432 +15 26 45.75 24.7r 15VV166 568 C~2lVg 2015 11 06.48426 03 19 33.116 +15 26 44.39 24.6r 15VV166 568 C~2lVg 2015 11 07.50182 03 19 28.536 +15 26 26.36 24.4w 15VV166 568 C~2lVg 2015 11 17.48361 03 18 43.285 +15 23 30.78 24.5w 15VV166 568 C~2lVg 2015 11 17.57138 03 18 42.888 +15 23 29.01 24.8w 15VV166 568 C~2lVg 2015 12 06.34926 03 17 20.374 +15 18 25.96 24.6w 15VV166 568 C~2lVg 2015 12 06.48675 03 17 19.801 +15 18 23.92 25.1w 15VV166 568 C~2lVg 2015 12 31.37031 03 15 51.527 +15 13 35.29 24.6w 15VV166 568 C~2lVg 2016 01 07.39971 03 15 33.587 +15 12 46.02 24.5w 15VV166 568 C~2lVg 2016 02 05.29926 03 15 02.287 +15 12 26.54 25.5w 15VV166 568 C~2lVg 2016 02 11.25262 03 15 04.973 +15 12 59.49 24.7w 15VV166 568 C~2lVg 2016 09 07.58521 03 27 13.323 +15 57 27.45 24.9w 15VV166 568 C~2lVg 2016 09 27.51883 03 26 34.097 +15 53 57.68 24.6w 15VV166 568 C~2lVg 2016 09 29.49637 03 26 28.609 +15 53 31.95 24.9w 15VV166 568 C~2lVg 2016 10 05.49953 03 26 10.296 +15 52 08.16 24.4w 15VV166 568 C~2lVg 2016 10 07.59973 03 26 03.362 +15 51 37.30 24.8w 15VV166 568 C~2lVg 2016 10 09.50422 03 25 56.846 +15 51 08.67 24.8w 15VV166 568 C~2lVg 2016 10 09.57681 03 25 56.601 +15 51 07.57 24.7w 15VV166 568 C~2lVg 2016 11 04.46713 03 24 11.676 +15 43 57.18 24.6w 15VV166 568 C~2lVg 2016 12 28.44224 03 20 28.120 +15 30 53.40 24.7w 15VV166 568 C~2lVg 2016 12 28.45409 03 20 28.092 +15 30 53.34 24.7w 15VV166 568 C~2lVg 2017 01 27.30860 03 19 31.294 +15 28 55.16 24.7w 15VV166 568 C~2lVg 2017 09 16.63393 03 31 31.535 +16 12 14.47 15VV166 568 C~2lVg 2017 09 17.59434 03 31 29.768 +16 12 04.95 15VV166 568 C~2lVg 2017 09 23.53642 03 31 17.196 +16 11 00.79 24.5w 15VV166 568 C~2lVg 2017 09 23.57295 03 31 17.102 +16 11 00.31 15VV166 568 C~2lVg 2017 12 13.36708 03 25 54.404 +15 50 21.86 15VV166 568 C~2lVg
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 -0.09 0.00 -0.01
2 0.0133 -106.04 0.00 -16.60 -0.02
3 0.0819 -1071.01 -0.02 -89.33 0.05
4 0.0820 -1074.08 -0.01 -89.45 0.06
5 0.0875 -1176.60 -0.05 -94.07 0.04
6 0.1635 -2879.68 0.01 -134.92 0.12
7 0.1637 -2884.45 0.06 -135.01 0.04
8 0.1639 -2889.21 0.05 -135.16 -0.08
9 0.1667 -2957.86 -0.05 -135.64 0.01
10 0.1940 -3635.52 0.00 -137.55 0.02
11 0.1942 -3641.52 0.03 -137.79 -0.24
12 0.2457 -4873.40 0.01 -123.10 0.01
13 0.2460 -4881.94 0.12 -122.93 -0.03
14 0.3142 -6191.42 -0.06 -70.54 0.03
15 0.3334 -6455.21 -0.15 -50.53 -0.31
16 0.4125 -6898.14 0.13 48.81 0.15
17 0.4288 -6851.96 -0.05 70.49 0.04
18 1.0019 4006.87 -0.01 -23.18 0.05
19 1.0565 3406.56 -0.07 -86.37 -0.04
20 1.0619 3323.46 0.18 -91.67 0.14
21 1.0784 3046.65 -0.06 -107.26 0.07
22 1.0841 2942.05 0.05 -112.29 0.04
23 1.0893 2843.85 -0.12 -116.65 0.07
24 1.0895 2840.15 0.06 -116.84 0.02
25 1.1604 1266.03 0.03 -155.51 -0.05
26 1.3082 -2056.74 -0.05 -97.49 -0.02
27 1.3082 -2057.14 0.08 -97.45 -0.01
28 1.3900 -2881.20 0.03 -1.99 -0.06
29 2.0260 7835.67 0.04 -73.62 -0.06
30 2.0287 7808.63 0.08 -76.69 -0.04
31 2.0449 7617.12 0.00 -95.08 -0.02
32 2.0450 7615.69 -0.09 -95.21 -0.06
33 2.2662 2798.07 -0.10 -153.23 0.08
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.
15VV166 quality flag:2 Type: 7:4EEE CLASSICAL 7:4EEE axisobj 44.035 44.045 44.025 ecceobj 0.070 0.071 0.069 incobj 2.760 2.760 2.760 qmin 39.783 39.781 39.686 qmax 47.999 47.980 48.096 amean 43.726 43.725 43.726 amin 43.363 43.345 43.343 amax 44.127 44.147 44.134 emean 0.076 0.074 0.077 emin 0.064 0.056 0.066 emax 0.088 0.087 0.090 imean 2.674 2.663 2.670 imin 1.855 1.843 1.860 imax 3.409 3.405 3.457 excite_mean 0.090 0.088 0.090 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.088 libcent 0 183.0 -180.0 180.6 libamp 0 158.0 -180.0 119.5 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 173.3 166.0 137.7 kozaiamp 180.0 179.9 180.0