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: 15VG166 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 35 observations of 35 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: 0.000034 0.027888 0.000010 0.008598 0.026401 0.000000 # Chi-squared of fit: 9.24 DOF: 64 RMS: 0.09 # Min/Max residuals: -0.22 0.19 # Exact a, adot, b, bdot, g, gdot: 1.675125E-05 2.819996E-02 4.500809E-06 8.699612E-03 2.669094E-02 2.200622E-03 # Covariance matrix: 2.4436E-13 -2.6198E-13 2.3258E-14 -5.2800E-14 -1.0413E-13 -2.2121E-12 -2.6198E-13 4.4395E-13 -5.0729E-14 1.1516E-13 2.2678E-13 4.8249E-12 2.3258E-14 -5.0729E-14 1.7091E-13 -1.0236E-13 -3.0687E-14 -6.4158E-13 -5.2800E-14 1.1516E-13 -1.0236E-13 9.7154E-14 6.9125E-14 1.4564E-12 -1.0413E-13 2.2678E-13 -3.0687E-14 6.9125E-14 2.5884E-13 2.8902E-12 -2.2121E-12 4.8249E-12 -6.4158E-13 1.4564E-12 2.8902E-12 6.1017E-11 # lat0 lon0 xBary yBary zBary JD0 -0.986103 48.232922 -0.107330 -0.016782 -0.983494 2456978.777218 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 16.26689 +/- 0.047 Argument of Peri: 331.50089 +/- 0.077 Long of Asc Node: 51.50769 +/- 0.000 Inclination: 17.17600 +/- 0.000 Eccentricity: 0.21012971 +/- 0.0001 Semi-Major Axis: 47.86985816 +/- 0.0042 Time of Perihelion: 2451504.1980 +/- 15.8 Perihelion: 37.81097876 +/- 0.0076 Aphelion: 57.92873757 +/- 0.0086 Period (y) 331.2085 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.52451488 +/- 0.0005 Ecliptic Y 28.74678160 +/- 0.0005 Ecliptic Z -0.64462919 +/- 0.0000 Ecliptic XDOT -0.00200121 +/- 0.0000 Ecliptic YDOT 0.00210163 +/- 0.0000 Ecliptic ZDOT 0.00088846 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.44858722 +/- 0.0005 Geocenter to KBO 37.46589364 +/- 0.0007 # Hcoef: 8.99
The following table shows the complete astrometric record for 15VG166. 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 (15VG166) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27644 03 04 13.812 +16 18 39.80 24.4r 15VG166 568 C~2lVe 2014 11 17.38513 03 04 13.221 +16 18 37.87 24.8r 15VG166 568 C~2lVe 2014 11 17.49897 03 04 12.603 +16 18 35.87 25.1r 15VG166 568 C~2lVe 2014 11 19.28749 03 04 03.017 +16 18 05.72 24.5r 15VG166 568 C~2lVe 2014 11 23.39103 03 03 41.215 +16 16 57.74 25.0r 15VG166 568 C~2lVe 2015 08 11.57225 03 15 09.238 +17 26 12.02 25.4w 15VG166 568 C~2lVe 2015 09 12.50905 03 14 54.845 +17 27 25.33 24.7w 15VG166 568 C~2lVe 2015 10 07.43408 03 13 36.090 +17 24 05.89 25.3w 15VG166 568 C~2lVe 2015 11 07.35377 03 11 03.754 +17 16 31.81 24.9r 15VG166 568 C~2lVe 2015 11 07.39585 03 11 03.526 +17 16 31.02 24.7r 15VG166 568 C~2lVe 2015 11 07.43803 03 11 03.298 +17 16 30.41 25.0r 15VG166 568 C~2lVe 2015 11 10.52298 03 10 46.510 +17 15 39.26 24.7w 15VG166 568 C~2lVe 2015 12 06.37850 03 08 30.198 +17 08 48.95 24.8w 15VG166 568 C~2lVe 2015 12 13.31287 03 07 57.661 +17 07 15.31 24.7w 15VG166 568 C~2lVe 2015 12 13.37141 03 07 57.388 +17 07 14.52 25.2w 15VG166 568 C~2lVe 2016 01 01.36607 03 06 44.890 +17 04 05.99 25.0w 15VG166 568 C~2lVe 2016 01 07.31283 03 06 28.357 +17 03 31.88 25.5w 15VG166 568 C~2lVe 2016 02 04.28927 03 05 58.379 +17 04 07.24 25.5w 15VG166 568 C~2lVe 2016 02 10.27908 03 06 02.868 +17 04 58.77 25.0w 15VG166 568 C~2lVe 2016 09 06.61138 03 20 55.972 +18 20 23.90 15VG166 568 C~2lVe 2016 09 26.60062 03 20 08.422 +18 19 02.93 24.8w 15VG166 568 C~2lVe 2016 10 10.40808 03 19 15.657 +18 16 52.50 25.4w 15VG166 568 C~2lVe 2016 10 10.46643 03 19 15.394 +18 16 51.76 25.3w 15VG166 568 C~2lVe 2016 11 02.53154 03 17 21.993 +18 11 36.33 24.6w 15VG166 568 C~2lVe 2016 11 02.53733 03 17 21.944 +18 11 36.28 25.2w 15VG166 568 C~2lVe 2016 11 04.40663 03 17 11.930 +18 11 07.26 25.0w 15VG166 568 C~2lVe 2016 11 04.41248 03 17 11.893 +18 11 07.19 24.8w 15VG166 568 C~2lVe 2016 12 24.30698 03 13 02.186 +17 59 10.68 25.1w 15VG166 568 C~2lVe 2016 12 29.38063 03 12 43.900 +17 58 24.17 25.0w 15VG166 568 C~2lVe 2017 01 02.38784 03 12 31.023 +17 57 53.20 25.2w 15VG166 568 C~2lVe 2017 01 02.40920 03 12 30.967 +17 57 53.08 25.1w 15VG166 568 C~2lVe 2017 01 26.29981 03 11 46.332 +17 56 53.21 24.9w 15VG166 568 C~2lVe 2017 09 15.60695 03 26 34.044 +19 12 01.88 25.3w 15VG166 568 C~2lVe 2017 09 22.59291 03 26 16.740 +19 11 38.08 25.0w 15VG166 568 C~2lVe 2017 12 16.36391 03 19 31.145 +18 53 54.99 25.2w 15VG166 568 C~2lVe
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 -0.01 0.00 0.13
2 0.0003 -8.71 0.00 0.49 0.02
3 0.0006 -17.81 0.05 1.03 -0.06
4 0.0055 -158.78 -0.05 10.17 -0.06
5 0.0167 -479.24 0.04 31.63 -0.12
6 0.7318 10160.18 -0.10 1368.03 0.19
7 0.8193 9980.32 0.11 1493.03 0.16
8 0.8875 8838.16 0.07 1597.95 0.09
9 0.9721 6611.60 -0.02 1740.72 -0.01
10 0.9723 6608.23 0.01 1740.83 -0.12
11 0.9724 6604.92 0.09 1741.11 -0.06
12 0.9808 6359.29 -0.14 1756.25 -0.00
13 1.0516 4366.36 -0.19 1887.38 0.09
14 1.0706 3891.85 -0.02 1923.73 0.01
15 1.0708 3887.86 -0.09 1924.03 -0.01
16 1.1228 2836.06 -0.05 2025.61 -0.01
17 1.1390 2598.63 0.13 2057.56 -0.22
18 1.2156 2194.77 0.01 2209.21 0.05
19 1.2320 2270.81 0.09 2241.15 -0.13
20 1.8052 15806.65 -0.06 3233.16 -0.11
21 1.8599 15127.55 -0.02 3327.85 -0.15
22 1.8977 14363.86 0.11 3394.44 0.05
23 1.8979 14360.03 0.00 3394.69 -0.01
24 1.9610 12710.58 0.04 3506.95 -0.01
25 1.9610 12709.89 -0.19 3507.08 0.10
26 1.9661 12563.99 0.05 3516.08 -0.00
27 1.9661 12563.46 -0.01 3516.15 0.04
28 2.1028 8929.33 0.06 3758.30 0.02
29 2.1166 8664.93 -0.12 3782.61 0.13
30 2.1276 8479.23 -0.03 3801.52 0.03
31 2.1277 8478.42 0.13 3801.62 0.03
32 2.1931 7847.51 0.11 3913.40 0.05
33 2.8291 21279.27 -0.00 5038.21 0.03
34 2.8482 21033.29 0.12 5075.74 0.05
35 3.0803 15153.54 -0.14 5492.68 -0.17
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.
15VG166 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.340 48.355 48.325 ecceobj 0.218 0.219 0.218 incobj 17.134 17.134 17.134 qmin 35.086 34.879 35.167 qmax 61.228 61.346 61.069 amean 47.798 47.797 47.798 amin 47.324 47.304 47.339 amax 48.370 48.387 48.355 emean 0.233 0.234 0.232 emin 0.199 0.199 0.199 emax 0.266 0.269 0.263 imean 15.306 15.277 15.310 imin 14.342 14.210 14.409 imax 16.396 16.394 16.401 excite_mean 0.352 0.353 0.352 fracstop 1.000 1.000 1.000 cjmean 2.993 2.993 2.994 libcent 0 76.9 77.4 76.8 libamp 0 21.5 24.8 18.0 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 184.9 190.5 177.3 kozaiamp 180.0 179.9 180.0