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: 15VQ166 # Created Sun Dec 22 02:10:34 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 39 observations of 39 # Arc: 7.04y # First observation: 2014/11/17 # Last observation: 2021/12/01 # Chi-squared of fit: 11.11 DOF: 72 RMS: 0.09 # Min/Max residuals: -0.32 0.22 # Exact a, adot, b, bdot, g, gdot: 1.599715E-05 2.298908E-02 5.173694E-07 7.959548E-04 2.381584E-02 9.714713E-04 # Covariance matrix: 2.3531E-13 -1.9981E-13 5.5437E-15 -6.1035E-15 -5.0870E-14 -1.0711E-12 -1.9981E-13 2.0920E-13 -6.1525E-15 6.7693E-15 5.9020E-14 1.1879E-12 5.5437E-15 -6.1525E-15 8.0747E-14 -2.8308E-14 -1.8903E-15 -3.8354E-14 -6.1035E-15 6.7693E-15 -2.8308E-14 1.8856E-14 1.8844E-15 4.2268E-14 -5.0870E-14 5.9020E-14 -1.8903E-15 1.8844E-15 1.2958E-13 3.2840E-13 -1.0711E-12 1.1879E-12 -3.8354E-14 4.2268E-14 3.2840E-13 7.4183E-12 # lat0 lon0 xBary yBary zBary JD0 -0.403357 46.918093 -0.130493 -0.006755 -0.980807 2456978.812878 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 66.11795 +/- 0.046 Argument of Peri: 277.71977 +/- 0.055 Long of Asc Node: 58.32019 +/- 0.002 Inclination: 2.02423 +/- 0.000 Eccentricity: 0.04601986 +/- 0.0001 Semi-Major Axis: 43.70357560 +/- 0.0028 Time of Perihelion: 2437596.8499 +/- 13.7 Perihelion: 41.69234311 +/- 0.0060 Aphelion: 45.71480808 +/- 0.0061 Period (y) 288.9240 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.25099121 +/- 0.0004 Ecliptic Y 31.47403584 +/- 0.0005 Ecliptic Z -0.29559064 +/- 0.0000 Ecliptic XDOT -0.00185780 +/- 0.0000 Ecliptic YDOT 0.00188222 +/- 0.0000 Ecliptic ZDOT 0.00009082 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.96883100 +/- 0.0005 Geocenter to KBO 41.98888019 +/- 0.0006 # Hcoef: 7.98
The following table shows the complete astrometric record for 15VQ166. 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 (15VQ166) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.31210 02 58 17.230 +16 30 09.94 24.1r 15VQ166 568 C~2lVf 2014 11 17.42105 02 58 16.721 +16 30 07.77 23.8r 15VQ166 568 C~2lVf 2014 11 19.33265 02 58 07.596 +16 29 30.15 24.3r 15VQ166 568 C~2lVf 2014 11 23.43547 02 57 48.263 +16 28 10.46 24.3r 15VQ166 568 C~2lVf 2015 09 06.63576 03 08 01.103 +17 13 05.08 24.3w 15VQ166 568 C~2lVf 2015 09 12.52541 03 07 50.850 +17 12 23.52 24.7w 15VQ166 568 C~2lVf 2015 10 07.46582 03 06 37.281 +17 07 26.89 24.8w 15VQ166 568 C~2lVf 2015 10 08.47003 03 06 33.431 +17 07 11.46 24.5w 15VQ166 568 C~2lVf 2015 10 08.52822 03 06 33.205 +17 07 10.49 24.4w 15VQ166 568 C~2lVf 2015 11 06.28626 03 04 24.979 +16 58 34.12 24.0r 15VQ166 568 C~2lVf 2015 11 06.34963 03 04 24.660 +16 58 32.80 24.2r 15VQ166 568 C~2lVf 2015 11 06.42017 03 04 24.327 +16 58 31.73 24.5r 15VQ166 568 C~2lVf 2015 11 06.48956 03 04 23.982 +16 58 30.13 24.2r 15VQ166 568 C~2lVf 2015 11 07.50772 03 04 19.058 +16 58 10.32 24.7w 15VQ166 568 C~2lVf 2015 11 17.27378 03 03 31.736 +16 54 59.63 24.5w 15VQ166 568 C~2lVf 2015 11 17.32308 03 03 31.493 +16 54 58.79 24.4w 15VQ166 568 C~2lVf 2015 12 06.40182 03 02 03.712 +16 49 06.23 23.6w 15VQ166 568 C~2lVf 2015 12 13.33636 03 01 35.241 +16 47 12.72 24.5w 15VQ166 568 C~2lVf 2015 12 13.39494 03 01 35.012 +16 47 11.73 24.4w 15VQ166 568 C~2lVf 2016 01 01.38920 03 00 32.335 +16 43 05.29 24.7w 15VQ166 568 C~2lVf 2016 01 02.35555 03 00 29.861 +16 42 55.53 24.9w 15VQ166 568 C~2lVf 2016 01 07.33598 03 00 18.302 +16 42 11.59 24.6w 15VQ166 568 C~2lVf 2016 02 03.22261 02 59 54.904 +16 40 58.86 24.9w 15VQ166 568 C~2lVf 2016 02 03.22917 02 59 54.885 +16 40 58.99 24.6w 15VQ166 568 C~2lVf 2016 02 04.26610 02 59 55.394 +16 41 01.85 24.6w 15VQ166 568 C~2lVf 2016 02 10.25584 03 00 00.203 +16 41 27.92 24.7w 15VQ166 568 C~2lVf 2016 09 07.55628 03 13 08.815 +17 36 19.39 15VQ166 568 C~2lVf 2016 09 26.61685 03 12 24.553 +17 33 26.71 24.7w 15VQ166 568 C~2lVf 2016 10 10.43169 03 11 35.808 +17 30 16.59 24.7w 15VQ166 568 C~2lVf 2016 10 10.49031 03 11 35.565 +17 30 15.75 24.5w 15VQ166 568 C~2lVf 2016 10 27.52577 03 10 21.554 +17 25 26.44 24.5w 15VQ166 568 C~2lVf 2016 11 03.55078 03 09 48.223 +17 23 16.23 24.4w 15VQ166 568 C~2lVf 2016 12 28.38756 03 05 51.646 +17 07 54.55 24.8w 15VQ166 568 C~2lVf 2016 12 29.35312 03 05 48.813 +17 07 43.78 24.0w 15VQ166 568 C~2lVf 2017 01 01.25010 03 05 40.764 +17 07 13.21 24.6w 15VQ166 568 C~2lVf 2017 01 02.36014 03 05 37.846 +17 07 02.25 24.5w 15VQ166 568 C~2lVf 2017 01 26.25322 03 05 01.425 +17 04 53.95 24.6w 15VQ166 568 C~2lVf 2021 12 01.248330 03 33 52.122 +19 07 22.92 24.2G 15VQ166 G37 C~5J85 2021 12 01.373660 03 33 51.535 +19 07 21.09 15VQ166 G37 C~5J85
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 -0.04
2 0.0003 0.00 0.16 0.00 -0.07
3 0.0055 0.00 -0.12 0.00 -0.04
4 0.0168 0.00 -0.09 0.00 0.03
5 0.8031 0.00 -0.08 0.00 0.05
6 0.8192 0.00 -0.05 0.00 0.02
7 0.8875 0.00 0.12 0.00 -0.04
8 0.8902 0.00 0.02 0.00 -0.00
9 0.8904 0.00 0.07 0.00 -0.07
10 0.9691 0.00 0.07 0.00 0.03
11 0.9693 0.00 -0.06 0.00 -0.07
12 0.9695 0.00 0.15 0.00 0.22
13 0.9697 0.00 0.09 0.00 -0.02
14 0.9725 0.00 0.15 0.00 0.01
15 0.9992 0.00 0.08 0.00 -0.11
16 0.9993 0.00 0.05 0.00 0.00
17 1.0516 0.00 -0.07 0.00 -0.16
18 1.0706 0.00 0.04 0.00 0.03
19 1.0707 0.00 0.12 0.00 -0.04
20 1.1227 0.00 0.01 0.00 0.18
21 1.1254 0.00 0.06 0.00 -0.04
22 1.1390 0.00 -0.07 0.00 0.03
23 1.2126 0.00 -0.01 0.00 0.09
24 1.2126 0.00 -0.32 0.00 0.20
25 1.2155 0.00 0.17 0.00 0.04
26 1.2319 0.00 0.03 0.00 0.01
27 1.8077 0.00 -0.00 0.00 -0.02
28 1.8598 0.00 -0.07 0.00 -0.17
29 1.8977 0.00 0.06 0.00 -0.05
30 1.8978 0.00 -0.04 0.00 0.01
31 1.9445 0.00 -0.06 0.00 -0.12
32 1.9637 0.00 -0.04 0.00 0.06
33 2.1138 0.00 0.02 0.00 0.04
34 2.1165 0.00 -0.03 0.00 0.05
35 2.1244 0.00 -0.01 0.00 0.02
36 2.1274 0.00 -0.00 0.00 0.04
37 2.1929 0.00 -0.04 0.00 -0.04
38 7.0388 0.00 -0.16 0.00 -0.10
39 7.0392 0.00 0.18 0.00 0.09
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.
15VQ166 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 44.057 44.057 44.057 ecceobj 0.053 0.053 0.053 incobj 2.019 2.019 2.019 qmin 40.977 40.983 40.989 qmax 46.641 46.640 46.646 amean 43.726 43.726 43.726 amin 43.374 43.375 43.373 amax 44.090 44.081 44.095 emean 0.048 0.048 0.048 emin 0.038 0.038 0.038 emax 0.058 0.059 0.058 imean 1.081 1.081 1.082 imin 0.245 0.245 0.245 imax 1.689 1.689 1.689 excite_mean 0.052 0.052 0.052 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 libcent 0 182.5 179.7 180.8 libamp 0 124.6 122.5 127.3 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 222.4 223.8 220.6 kozaiamp 180.0 179.9 180.0