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: 15VF165 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 39 observations of 39 # Arc: 3.06y # First observation: 2014/11/23 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000689 0.024911 0.000281 -0.010820 0.027409 0.000000 # Chi-squared of fit: 6.82 DOF: 72 RMS: 0.07 # Min/Max residuals: -0.19 0.27 # Exact a, adot, b, bdot, g, gdot: 1.416157E-05 2.414480E-02 -6.076083E-06 -1.051222E-02 2.704879E-02 -9.790288E-03 # Covariance matrix: 6.4823E-13 -6.8404E-13 -1.6513E-13 2.3352E-13 -3.1429E-13 -6.0643E-12 -6.8404E-13 8.1802E-13 2.1250E-13 -3.0047E-13 3.9794E-13 7.8036E-12 -1.6513E-13 2.1250E-13 2.4932E-13 -1.7797E-13 1.1484E-13 2.1856E-12 2.3352E-13 -3.0047E-13 -1.7797E-13 1.7661E-13 -1.6286E-13 -3.0911E-12 -3.1429E-13 3.9794E-13 1.1484E-13 -1.6286E-13 3.0764E-13 4.2204E-12 -6.0643E-12 7.8036E-12 2.1856E-12 -3.0911E-12 4.2204E-12 8.0267E-11 # lat0 lon0 xBary yBary zBary JD0 -0.396953 48.819148 -0.202346 -0.006536 -0.967024 2456984.898148 # Heliocentric elements and errors Epoch: 2456980.5000 = 2014/11/19 Mean Anomaly: 296.11811 +/- 0.034 Argument of Peri: 285.27083 +/- 0.012 Long of Asc Node: 228.23814 +/- 0.000 Inclination: 23.47890 +/- 0.001 Eccentricity: 0.34777846 +/- 0.0003 Semi-Major Axis: 39.44972124 +/- 0.0099 Time of Perihelion: 2473040.2792 +/- 6.0 Perihelion: 25.72995806 +/- 0.0138 Aphelion: 53.16948441 +/- 0.0181 Period (y) 247.7845 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.82339152 +/- 0.0005 Ecliptic Y 28.68688598 +/- 0.0006 Ecliptic Z -0.25638830 +/- 0.0000 Ecliptic XDOT -0.00250093 +/- 0.0000 Ecliptic YDOT 0.00085280 +/- 0.0000 Ecliptic ZDOT -0.00105704 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.93684131 +/- 0.0005 Geocenter to KBO 36.97023366 +/- 0.0008 # Hcoef: 8.36
The following table shows the complete astrometric record for 15VF165. 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 (15VF165) followed by the observatory code and reference code for the source of the astrometry.
2014 11 23.39737 03 05 54.418 +17 02 19.29 24.0r 15VF165 568 C~2lVa 2015 09 07.63311 03 17 42.768 +17 20 05.68 24.2w 15VF165 568 C~2lVa 2015 09 12.49674 03 17 34.280 +17 18 56.77 24.5w 15VF165 568 C~2lVa 2015 10 07.54436 03 16 15.847 +17 10 50.55 24.3w 15VF165 568 C~2lVa 2015 10 07.60373 03 16 15.589 +17 10 49.08 24.3w 15VF165 568 C~2lVa 2015 10 09.58362 03 16 07.230 +17 10 02.69 23.9w 15VF165 568 C~2lVa 2015 11 07.33788 03 13 42.734 +16 57 23.41 24.1r 15VF165 568 C~2lVa 2015 11 07.38006 03 13 42.491 +16 57 22.26 24.2r 15VF165 568 C~2lVa 2015 11 07.42224 03 13 42.251 +16 57 21.07 24.3r 15VF165 568 C~2lVa 2015 11 10.50536 03 13 25.251 +16 55 54.61 24.3w 15VF165 568 C~2lVa 2015 11 17.35218 03 12 47.375 +16 52 42.58 24.2w 15VF165 568 C~2lVa 2015 11 17.39878 03 12 47.109 +16 52 41.29 24.3w 15VF165 568 C~2lVa 2015 12 06.36096 03 11 06.379 +16 44 11.26 23.7w 15VF165 568 C~2lVa 2015 12 06.49848 03 11 05.689 +16 44 07.59 23.7w 15VF165 568 C~2lVa 2016 01 01.34872 03 09 18.374 +16 34 44.93 24.4w 15VF165 568 C~2lVa 2016 01 07.41130 03 09 00.993 +16 33 06.11 24.4w 15VF165 568 C~2lVa 2016 01 07.42868 03 09 00.948 +16 33 06.17 24.5w 15VF165 568 C~2lVa 2016 01 08.25624 03 08 58.869 +16 32 53.72 24.4w 15VF165 568 C~2lVa 2016 02 04.29505 03 08 29.905 +16 28 57.73 24.8w 15VF165 568 C~2lVa 2016 02 04.30157 03 08 29.886 +16 28 57.42 24.6w 15VF165 568 C~2lVa 2016 02 10.28486 03 08 34.341 +16 28 50.11 24.2w 15VF165 568 C~2lVa 2016 09 07.56206 03 24 03.525 +17 06 17.48 15VF165 568 C~2lVa 2016 09 26.62090 03 23 18.450 +17 00 49.38 24.3w 15VF165 568 C~2lVa 2016 10 10.43747 03 22 25.633 +16 55 40.65 24.6w 15VF165 568 C~2lVa 2016 10 10.51394 03 22 25.292 +16 55 38.88 24.2w 15VF165 568 C~2lVa 2016 11 02.51995 03 20 30.789 +16 45 37.07 15VF165 568 C~2lVa 2016 11 04.39506 03 20 20.540 +16 44 45.39 24.4w 15VF165 568 C~2lVa 2016 12 24.33186 03 16 04.217 +16 23 42.70 24.4w 15VF165 568 C~2lVa 2017 01 02.43457 03 15 31.900 +16 20 58.64 24.4w 15VF165 568 C~2lVa 2017 01 26.32220 03 14 45.316 +16 16 28.99 24.5w 15VF165 568 C~2lVa 2017 01 27.28684 03 14 44.709 +16 16 23.37 24.3w 15VF165 568 C~2lVa 2017 09 15.58250 03 30 18.391 +16 49 35.79 24.1w 15VF165 568 C~2lVa 2017 09 16.63393 03 30 16.165 +16 49 17.80 24.2w 15VF165 568 C~2lVa 2017 09 17.59434 03 30 14.038 +16 49 01.05 24.4w 15VF165 568 C~2lVa 2017 09 21.62755 03 30 04.091 +16 47 47.24 24.3w 15VF165 568 C~2lVa 2017 09 22.56874 03 30 01.546 +16 47 29.40 24.4w 15VF165 568 C~2lVa 2017 09 23.57295 03 29 58.740 +16 47 09.91 24.2w 15VF165 568 C~2lVa 2017 12 16.35926 03 23 07.577 +16 12 09.57 24.3w 15VF165 568 C~2lVa 2017 12 16.37785 03 23 07.485 +16 12 09.21 24.3w 15VF165 568 C~2lVa
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 -0.01
2 0.7891 10075.77 0.01 -1680.06 -0.05
3 0.8025 9940.20 0.02 -1715.11 0.01
4 0.8710 8726.29 0.01 -1892.07 -0.06
5 0.8712 8722.33 -0.09 -1892.52 -0.12
6 0.8766 8594.35 0.08 -1906.00 0.00
7 0.9553 6392.60 0.05 -2093.74 0.04
8 0.9555 6388.93 -0.04 -2093.93 0.09
9 0.9556 6385.29 -0.10 -2094.17 0.10
10 0.9640 6126.93 0.05 -2112.99 0.09
11 0.9828 5551.40 -0.00 -2153.98 0.03
12 0.9829 5547.37 -0.06 -2154.21 0.06
13 1.0348 4016.44 0.03 -2260.10 0.07
14 1.0352 4005.91 0.08 -2260.98 -0.11
15 1.1060 2368.77 -0.01 -2388.44 0.00
16 1.1226 2101.42 -0.16 -2416.11 -0.19
17 1.1226 2100.82 -0.06 -2415.88 0.12
18 1.1249 2068.67 -0.05 -2419.79 -0.07
19 1.1989 1603.76 0.27 -2534.30 0.13
20 1.1989 1603.41 -0.10 -2534.53 -0.06
21 1.2153 1663.13 0.15 -2558.92 -0.02
22 1.7910 15159.34 0.03 -3880.64 -0.03
23 1.8432 14447.47 0.02 -4035.24 -0.01
24 1.8810 13632.41 -0.01 -4141.91 -0.02
25 1.8812 13627.20 -0.01 -4142.38 0.05
26 1.9442 11877.32 0.10 -4304.66 -0.11
27 1.9493 11721.25 0.02 -4316.84 -0.03
28 2.0861 7825.20 -0.04 -4580.53 0.01
29 2.1110 7332.60 -0.18 -4616.86 -0.01
30 2.1764 6613.70 0.02 -4700.61 0.01
31 2.1790 6603.78 -0.06 -4703.73 0.03
32 2.8123 20162.39 -0.07 -6198.52 0.00
33 2.8152 20126.66 -0.00 -6208.17 -0.01
34 2.8178 20092.64 -0.00 -6216.96 0.00
35 2.8288 19934.62 -0.02 -6253.64 -0.06
36 2.8314 19894.44 -0.03 -6262.00 0.07
37 2.8342 19850.19 0.05 -6271.04 0.04
38 3.0636 13556.09 0.08 -6828.26 -0.03
39 3.0636 13554.71 0.04 -6828.27 0.03
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.
15VF165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.601 39.625 39.577 ecceobj 0.343 0.344 0.342 incobj 23.397 23.397 23.397 qmin 25.099 25.086 25.071 qmax 54.381 54.398 54.391 amean 39.453 39.454 39.453 amin 39.054 39.079 39.035 amax 39.958 39.947 39.944 emean 0.283 0.283 0.281 emin 0.160 0.161 0.161 emax 0.363 0.363 0.363 imean 26.610 26.627 26.614 imin 23.736 23.670 23.749 imax 29.890 29.904 29.960 excite_mean 0.533 0.533 0.533 fracstop 1.000 1.000 1.000 cjmean 2.721 2.721 2.722 libcent 0 180.5 181.9 180.3 libamp 0 53.1 42.2 65.5 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 275.9 276.9 269.2 kozaiamp 71.8 69.5 77.2