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: 15VH168 # Created Sat Apr 20 01:17:41 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 38 observations of 38 # Arc: 9.14y # First observation: 2014/11/17 # Last observation: 2024/01/09 # Chi-squared of fit: 2.95 DOF: 70 RMS: 0.05 # Min/Max residuals: -0.21 0.19 # Exact a, adot, b, bdot, g, gdot: 1.764116E-05 3.143328E-02 -4.901564E-06 -8.936343E-03 2.811203E-02 8.240925E-04 # Covariance matrix: 2.0816E-13 -1.2796E-13 -3.4711E-14 3.1526E-14 -7.4440E-14 -3.6799E-13 -1.2796E-13 1.0392E-13 3.0867E-14 -2.7995E-14 4.2292E-14 3.2812E-13 -3.4711E-14 3.0867E-14 8.3295E-14 -2.5368E-14 8.0224E-15 1.0808E-13 3.1526E-14 -2.7995E-14 -2.5368E-14 1.5991E-14 -7.4904E-15 -9.7914E-14 -7.4440E-14 4.2292E-14 8.0224E-15 -7.4904E-15 1.4208E-13 8.0427E-14 -3.6799E-13 3.2812E-13 1.0808E-13 -9.7914E-14 8.0427E-14 1.1514E-12 # lat0 lon0 xBary yBary zBary JD0 -0.039742 46.303748 -0.141002 -0.000530 -0.979374 2456978.812878 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 4.42543 +/- 0.005 Argument of Peri: 172.47991 +/- 0.009 Long of Asc Node: 226.39286 +/- 0.000 Inclination: 15.87166 +/- 0.000 Eccentricity: 0.25286737 +/- 0.0000 Semi-Major Axis: 48.83295595 +/- 0.0037 Time of Perihelion: 2455446.2817 +/- 1.8 Perihelion: 36.48469491 +/- 0.0037 Aphelion: 61.18121699 +/- 0.0052 Period (y) 341.2540 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.14588443 +/- 0.0003 Ecliptic Y 26.52598652 +/- 0.0003 Ecliptic Z -0.02486528 +/- 0.0000 Ecliptic XDOT -0.00216261 +/- 0.0000 Ecliptic YDOT 0.00216749 +/- 0.0000 Ecliptic ZDOT -0.00087027 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.55055129 +/- 0.0003 Geocenter to KBO 35.57198582 +/- 0.0005 # Hcoef: 7.32
The following table shows the complete astrometric record for 15VH168. 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 (15VH168) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.31210 02 55 23.808 +16 40 34.04 22.8r 15VH168 568 C~2lVm 2014 11 17.42105 02 55 23.211 +16 40 31.01 22.8r 15VH168 568 C~2lVm 2014 11 17.53510 02 55 22.595 +16 40 27.70 22.7r 15VH168 568 C~2lVm 2014 11 19.33265 02 55 13.018 +16 39 37.03 22.9r 15VH168 568 C~2lVm 2014 11 23.43547 02 54 51.398 +16 37 42.35 22.8r 15VH168 568 C~2lVm 2015 08 11.60566 03 08 14.628 +17 11 25.71 23.1w 15VH168 568 C~2lVm 2015 09 06.63576 03 08 12.071 +17 08 43.79 15VH168 568 C~2lVm 2015 09 12.52541 03 08 01.592 +17 07 26.73 23.1w 15VH168 568 C~2lVm 2015 10 07.46582 03 06 41.590 +16 59 37.85 23.0w 15VH168 568 C~2lVm 2015 10 08.47003 03 06 37.326 +16 59 14.79 23.0w 15VH168 568 C~2lVm 2015 10 08.52822 03 06 37.072 +16 59 13.53 23.0w 15VH168 568 C~2lVm 2015 11 06.28626 03 04 13.585 +16 46 46.63 23.0r 15VH168 568 C~2lVm 2015 11 06.34963 03 04 13.236 +16 46 44.84 22.9r 15VH168 568 C~2lVm 2015 11 06.42017 03 04 12.848 +16 46 43.00 22.9r 15VH168 568 C~2lVm 2015 11 06.48956 03 04 12.465 +16 46 41.00 22.9r 15VH168 568 C~2lVm 2016 09 07.55628 03 15 50.190 +17 07 32.25 15VH168 568 C~2lVm 2016 09 26.61279 03 15 04.322 +17 02 29.44 23.2w 15VH168 568 C~2lVm 2016 10 10.42589 03 14 11.242 +16 57 35.20 23.2w 15VH168 568 C~2lVm 2016 10 10.48430 03 14 10.980 +16 57 33.86 23.3w 15VH168 568 C~2lVm 2016 10 10.50790 03 14 10.874 +16 57 33.29 23.2w 15VH168 568 C~2lVm 2016 10 27.51417 03 12 48.883 +16 50 30.16 23.1w 15VH168 568 C~2lVm 2016 10 27.52577 03 12 48.821 +16 50 29.91 23.0w 15VH168 568 C~2lVm 2016 11 03.53920 03 12 11.599 +16 47 23.58 23.1w 15VH168 568 C~2lVm 2016 11 03.55078 03 12 11.531 +16 47 23.23 23.0w 15VH168 568 C~2lVm 2016 12 28.39306 03 07 46.606 +16 25 31.36 23.8w 15VH168 568 C~2lVm 2016 12 28.40104 03 07 46.579 +16 25 31.22 23.5w 15VH168 568 C~2lVm 2016 12 29.35861 03 07 43.497 +16 25 15.15 23.1w 15VH168 568 C~2lVm 2016 12 29.36878 03 07 43.463 +16 25 14.99 23.1w 15VH168 568 C~2lVm 2017 01 01.25561 03 07 34.681 +16 24 28.87 23.2w 15VH168 568 C~2lVm 2017 01 01.26608 03 07 34.647 +16 24 28.71 23.2w 15VH168 568 C~2lVm 2017 01 02.37586 03 07 31.466 +16 24 11.86 23.2w 15VH168 568 C~2lVm 2017 01 26.27054 03 06 53.862 +16 20 19.56 23.2w 15VH168 568 C~2lVm 2017 09 23.54857 03 22 56.190 +17 01 40.00 15VH168 568 C~2lVm 2017 12 16.38250 03 16 15.811 +16 28 33.07 23.0w 15VH168 568 C~2lVm 2017 12 16.38715 03 16 15.791 +16 28 32.99 23.0w 15VH168 568 C~2lVm 2024 01 09.091900 04 00 20.567 +15 56 45.33 23.1G 15VH168 G37 C~7gt1 2024 01 09.204390 04 00 20.157 +15 56 44.39 15VH168 G37 C~7gt1 2024 01 09.319770 04 00 19.760 +15 56 43.43 15VH168 G37 C~7gt1
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 0.02 0.00 -0.02
2 0.0003 0.00 -0.02 0.00 0.02
3 0.0006 0.00 0.05 0.00 -0.04
4 0.0055 0.00 0.03 0.00 0.01
5 0.0168 0.00 -0.00 0.00 -0.03
6 0.7318 0.00 0.01 0.00 0.03
7 0.8031 0.00 -0.21 0.00 0.19
8 0.8192 0.00 -0.00 0.00 0.00
9 0.8875 0.00 0.02 0.00 -0.01
10 0.8902 0.00 -0.02 0.00 -0.01
11 0.8904 0.00 -0.00 0.00 0.07
12 0.9691 0.00 -0.01 0.00 -0.01
13 0.9693 0.00 -0.01 0.00 -0.06
14 0.9695 0.00 0.02 0.00 0.05
15 0.9697 0.00 0.03 0.00 -0.03
16 1.8077 0.00 0.03 0.00 0.01
17 1.8598 0.00 0.10 0.00 0.03
18 1.8976 0.00 0.05 0.00 0.01
19 1.8978 0.00 0.01 0.00 0.01
20 1.8979 0.00 -0.00 0.00 -0.01
21 1.9444 0.00 0.04 0.00 -0.01
22 1.9445 0.00 0.03 0.00 0.05
23 1.9637 0.00 0.07 0.00 0.02
24 1.9637 0.00 -0.00 0.00 -0.01
25 2.1138 0.00 0.00 0.00 -0.02
26 2.1139 0.00 -0.00 0.00 -0.02
27 2.1165 0.00 0.01 0.00 -0.06
28 2.1165 0.00 0.00 0.00 -0.05
29 2.1244 0.00 0.02 0.00 -0.01
30 2.1244 0.00 -0.02 0.00 -0.01
31 2.1275 0.00 -0.01 0.00 -0.00
32 2.1929 0.00 0.02 0.00 -0.04
33 2.8508 0.00 -0.10 0.00 -0.01
34 3.0803 0.00 0.01 0.00 -0.02
35 3.0803 0.00 0.02 0.00 -0.00
36 9.1438 0.00 0.06 0.00 -0.07
37 9.1441 0.00 -0.11 0.00 -0.00
38 9.1444 0.00 0.03 0.00 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.
15VH168 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 49.332 49.331 49.332 ecceobj 0.260 0.260 0.260 incobj 15.830 15.830 15.830 qmin 35.229 35.196 35.288 qmax 62.876 62.946 62.845 amean 48.785 48.780 48.786 amin 48.323 48.301 48.321 amax 49.345 49.335 49.348 emean 0.259 0.259 0.259 emin 0.242 0.243 0.244 emax 0.275 0.276 0.275 imean 16.637 16.623 16.650 imin 16.075 16.032 16.118 imax 17.317 17.297 17.300 excite_mean 0.386 0.386 0.386 fracstop 1.000 1.000 1.000 cjmean 2.973 2.973 2.973 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 191.1 190.5 190.5 kozaiamp 180.0 180.0 180.0