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: 15VJ164 # Created Fri Nov 22 02:10:31 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 48 observations of 48 # Arc: 8.11y # First observation: 2014/11/17 # Last observation: 2022/12/26 # Chi-squared of fit: 18.43 DOF: 90 RMS: 0.11 # Min/Max residuals: -0.36 0.31 # Exact a, adot, b, bdot, g, gdot: 1.244595E-05 1.936600E-02 1.691739E-06 2.127112E-03 2.270709E-02 2.835080E-03 # Covariance matrix: 2.4255E-13 -2.0430E-13 2.1723E-14 -2.1946E-14 -6.5474E-14 -1.2148E-12 -2.0430E-13 2.0193E-13 -2.2223E-14 2.2445E-14 6.8137E-14 1.2424E-12 2.1723E-14 -2.2223E-14 6.2094E-14 -1.9610E-14 -7.3722E-15 -1.4442E-13 -2.1946E-14 2.2445E-14 -1.9610E-14 1.2880E-14 7.0186E-15 1.4618E-13 -6.5474E-14 6.8137E-14 -7.3722E-15 7.0186E-15 9.9745E-14 3.8607E-13 -1.2148E-12 1.2424E-12 -1.4442E-13 1.4618E-13 3.8607E-13 8.0928E-12 # lat0 lon0 xBary yBary zBary JD0 -1.075792 47.654987 -0.119501 -0.018283 -0.982044 2456978.906378 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 127.02487 +/- 0.037 Argument of Peri: 207.57645 +/- 0.032 Long of Asc Node: 57.30026 +/- 0.000 Inclination: 6.35742 +/- 0.000 Eccentricity: 0.20227535 +/- 0.0001 Semi-Major Axis: 39.37018415 +/- 0.0023 Time of Perihelion: 2425141.2276 +/- 9.6 Perihelion: 31.40656648 +/- 0.0030 Aphelion: 47.33380181 +/- 0.0037 Period (y) 247.0355 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.22944561 +/- 0.0004 Ecliptic Y 33.35155979 +/- 0.0005 Ecliptic Z -0.82678557 +/- 0.0000 Ecliptic XDOT -0.00149662 +/- 0.0000 Ecliptic YDOT 0.00182404 +/- 0.0000 Ecliptic ZDOT 0.00025011 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.02023649 +/- 0.0004 Geocenter to KBO 44.03905863 +/- 0.0006 # Hcoef: 7.63
The following table shows the complete astrometric record for 15VJ164. 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 (15VJ164) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.40560 03 02 01.293 +16 03 52.43 24.3r 15VJ164 568 C~2lVW 2014 11 17.51968 03 02 00.726 +16 03 50.35 23.9r 15VJ164 568 C~2lVW 2014 11 23.41007 03 01 33.456 +16 02 05.13 24.4r 15VJ164 568 C~2lVW 2015 08 11.60566 03 10 51.411 +16 46 54.12 24.2w 15VJ164 568 C~2lVW 2015 08 11.62323 03 10 51.423 +16 46 54.32 24.5w 15VJ164 568 C~2lVW 2015 09 06.63576 03 10 42.384 +16 46 15.41 24.6w 15VJ164 568 C~2lVW 2015 09 07.53281 03 10 41.050 +16 46 10.26 24.5w 15VJ164 568 C~2lVW 2015 09 12.52956 03 10 32.299 +16 45 35.36 24.5w 15VJ164 568 C~2lVW 2015 10 07.47166 03 09 20.656 +16 40 53.87 24.6w 15VJ164 568 C~2lVW 2015 10 08.47003 03 09 16.945 +16 40 39.29 24.2w 15VJ164 568 C~2lVW 2015 10 08.52822 03 09 16.716 +16 40 38.45 24.2w 15VJ164 568 C~2lVW 2015 11 06.28626 03 07 12.220 +16 32 37.02 24.2r 15VJ164 568 C~2lVW 2015 11 06.34963 03 07 11.907 +16 32 36.03 24.2r 15VJ164 568 C~2lVW 2015 11 06.42017 03 07 11.560 +16 32 34.85 23.9r 15VJ164 568 C~2lVW 2015 11 06.48956 03 07 11.247 +16 32 33.40 23.9r 15VJ164 568 C~2lVW 2015 11 07.50772 03 07 06.440 +16 32 15.09 24.3w 15VJ164 568 C~2lVW 2015 11 17.27960 03 06 20.325 +16 29 19.36 24.2w 15VJ164 568 C~2lVW 2015 11 17.32888 03 06 20.091 +16 29 18.53 24.3w 15VJ164 568 C~2lVW 2015 12 06.40182 03 04 54.192 +16 23 57.25 24.2w 15VJ164 568 C~2lVW 2015 12 13.33636 03 04 26.128 +16 22 14.62 24.3w 15VJ164 568 C~2lVW 2015 12 13.34220 03 04 26.102 +16 22 14.54 24.3w 15VJ164 568 C~2lVW 2015 12 13.39494 03 04 25.897 +16 22 13.81 24.0w 15VJ164 568 C~2lVW 2015 12 13.40075 03 04 25.869 +16 22 13.70 24.2w 15VJ164 568 C~2lVW 2016 01 01.38920 03 03 23.342 +16 18 35.98 24.3w 15VJ164 568 C~2lVW 2016 01 02.35555 03 03 20.826 +16 18 27.72 24.2w 15VJ164 568 C~2lVW 2016 01 07.33598 03 03 09.019 +16 17 50.24 24.0w 15VJ164 568 C~2lVW 2016 01 07.34177 03 03 09.012 +16 17 50.24 24.0w 15VJ164 568 C~2lVW 2016 02 03.22261 03 02 42.165 +16 17 05.33 24.4w 15VJ164 568 C~2lVW 2016 02 03.22917 03 02 42.175 +16 17 05.40 24.6w 15VJ164 568 C~2lVW 2016 02 04.26610 03 02 42.453 +16 17 09.33 24.4w 15VJ164 568 C~2lVW 2016 02 10.25584 03 02 45.985 +16 17 39.06 24.5w 15VJ164 568 C~2lVW 2016 02 10.26162 03 02 45.985 +16 17 39.11 24.4w 15VJ164 568 C~2lVW 2016 09 07.55628 03 14 53.640 +17 10 16.10 15VJ164 568 C~2lVW 2016 09 26.61685 03 14 10.121 +17 07 30.66 24.3w 15VJ164 568 C~2lVW 2016 10 10.43169 03 13 22.646 +17 04 30.87 24.5w 15VJ164 568 C~2lVW 2016 10 10.49031 03 13 22.411 +17 04 30.11 24.2w 15VJ164 568 C~2lVW 2016 10 27.52577 03 12 10.556 +16 59 59.55 24.4w 15VJ164 568 C~2lVW 2016 11 03.55078 03 11 38.195 +16 57 58.39 24.6w 15VJ164 568 C~2lVW 2016 12 28.39306 03 07 46.776 +16 43 59.37 25.1w 15VJ164 568 C~2lVW 2016 12 28.40104 03 07 46.742 +16 43 59.31 24.8w 15VJ164 568 C~2lVW 2016 12 29.35861 03 07 43.946 +16 43 49.95 24.6w 15VJ164 568 C~2lVW 2017 01 01.25561 03 07 35.890 +16 43 23.45 24.3w 15VJ164 568 C~2lVW 2017 01 02.36563 03 07 32.956 +16 43 13.92 24.5w 15VJ164 568 C~2lVW 2017 01 26.25322 03 06 54.814 +16 41 33.19 24.4w 15VJ164 568 C~2lVW 2017 01 26.28489 03 06 54.789 +16 41 33.10 15VJ164 568 C~2lVW 2022 12 26.092060 03 33 21.671 +19 04 27.92 24.7G 15VJ164 G37 C~69cT 2022 12 26.145210 03 33 21.512 +19 04 26.98 15VJ164 G37 C~69cT 2022 12 26.207440 03 33 21.273 +19 04 26.96 15VJ164 G37 C~69cT
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 0.23 0.00 0.02
2 0.0003 0.00 -0.15 0.00 0.02
3 0.0164 0.00 -0.05 0.00 -0.06
4 0.7316 0.00 -0.03 0.00 -0.03
5 0.7316 0.00 -0.04 0.00 0.12
6 0.8028 0.00 -0.22 0.00 -0.26
7 0.8053 0.00 -0.07 0.00 0.01
8 0.8190 0.00 -0.00 0.00 -0.01
9 0.8872 0.00 0.01 0.00 0.12
10 0.8900 0.00 -0.02 0.00 0.01
11 0.8901 0.00 -0.12 0.00 0.01
12 0.9689 0.00 0.22 0.00 -0.04
13 0.9690 0.00 0.05 0.00 0.10
14 0.9692 0.00 -0.10 0.00 0.18
15 0.9694 0.00 0.19 0.00 -0.02
16 0.9722 0.00 -0.01 0.00 0.02
17 0.9990 0.00 0.00 0.00 -0.01
18 0.9991 0.00 0.01 0.00 0.03
19 1.0513 0.00 -0.06 0.00 0.12
20 1.0703 0.00 0.08 0.00 -0.04
21 1.0703 0.00 0.04 0.00 -0.04
22 1.0705 0.00 0.10 0.00 -0.03
23 1.0705 0.00 0.02 0.00 -0.06
24 1.1225 0.00 0.02 0.00 0.04
25 1.1251 0.00 -0.02 0.00 -0.03
26 1.1388 0.00 -0.02 0.00 -0.20
27 1.1388 0.00 0.07 0.00 -0.16
28 1.2124 0.00 0.01 0.00 -0.11
29 1.2124 0.00 0.14 0.00 -0.06
30 1.2152 0.00 0.20 0.00 0.10
31 1.2316 0.00 -0.11 0.00 -0.09
32 1.2316 0.00 -0.18 0.00 -0.07
33 1.8074 0.00 0.03 0.00 0.09
34 1.8596 0.00 0.19 0.00 0.03
35 1.8974 0.00 0.08 0.00 -0.05
36 1.8976 0.00 -0.00 0.00 0.04
37 1.9442 0.00 0.01 0.00 0.08
38 1.9634 0.00 -0.08 0.00 0.14
39 2.1136 0.00 0.02 0.00 0.04
40 2.1136 0.00 -0.13 0.00 0.06
41 2.1162 0.00 -0.07 0.00 0.03
42 2.1242 0.00 0.01 0.00 0.05
43 2.1272 0.00 -0.02 0.00 -0.01
44 2.1926 0.00 0.02 0.00 0.06
45 2.1927 0.00 -0.06 0.00 -0.03
46 8.1059 0.00 -0.29 0.00 -0.01
47 8.1061 0.00 0.23 0.00 -0.36
48 8.1062 0.00 0.05 0.00 0.31
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.
15VJ164 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.650 39.650 39.650 ecceobj 0.200 0.200 0.200 incobj 6.340 6.340 6.340 qmin 30.453 30.453 30.449 qmax 49.008 49.002 48.946 amean 39.456 39.456 39.456 amin 39.026 39.026 39.026 amax 39.924 39.932 39.939 emean 0.209 0.209 0.209 emin 0.189 0.189 0.189 emax 0.228 0.228 0.227 imean 5.291 5.292 5.291 imin 4.767 4.768 4.770 imax 6.240 6.240 6.240 excite_mean 0.229 0.229 0.229 fracstop 1.000 1.000 1.000 cjmean 2.992 2.992 2.992 libcent 0 179.7 179.8 179.6 libamp 0 66.0 66.3 66.4 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 187.5 187.6 187.7 kozaiamp 179.9 179.9 179.9