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: 15VX164 # Created Wed Dec 25 02:10:28 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 32 observations of 32 # Arc: 6.21y # First observation: 2015/08/20 # Last observation: 2021/11/05 # Chi-squared of fit: 8.14 DOF: 58 RMS: 0.09 # Min/Max residuals: -0.14 0.33 # Exact a, adot, b, bdot, g, gdot: 2.165735E-05 5.153855E-02 -6.317151E-06 -1.562586E-02 3.812295E-02 1.441263E-03 # Covariance matrix: 2.1067E-13 -1.1805E-13 -1.3197E-14 3.3995E-14 1.0938E-13 -3.0590E-13 -1.1805E-13 2.9581E-13 3.9066E-14 -9.4559E-14 2.8999E-14 8.9908E-13 -1.3197E-14 3.9066E-14 6.4963E-14 -2.8061E-14 5.1601E-15 1.2475E-13 3.3995E-14 -9.4559E-14 -2.8061E-14 4.5463E-14 -1.0320E-14 -3.0153E-13 1.0938E-13 2.8999E-14 5.1601E-15 -1.0320E-14 1.2986E-13 1.1646E-13 -3.0590E-13 8.9908E-13 1.2475E-13 -3.0153E-13 1.1646E-13 2.8705E-12 # lat0 lon0 xBary yBary zBary JD0 -0.243312 53.186001 1.012164 -0.000165 -0.070192 2457255.068249 # Heliocentric elements and errors Epoch: 2457254.5000 = 2015/08/20 Mean Anomaly: 358.72793 +/- 0.003 Argument of Peri: 183.50577 +/- 0.007 Long of Asc Node: 230.18851 +/- 0.000 Inclination: 16.88250 +/- 0.000 Eccentricity: 0.32998214 +/- 0.0000 Semi-Major Axis: 39.26886755 +/- 0.0029 Time of Perihelion: 2457572.0991 +/- 10.0 Perihelion: 26.31084243 +/- 0.0026 Aphelion: 52.22689266 +/- 0.0042 Period (y) 246.0825 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 16.56631926 +/- 0.0002 Ecliptic Y 20.44940135 +/- 0.0002 Ecliptic Z -0.11153525 +/- 0.0000 Ecliptic XDOT -0.00290604 +/- 0.0000 Ecliptic YDOT 0.00229058 +/- 0.0000 Ecliptic ZDOT -0.00112257 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 26.31793579 +/- 0.0002 Geocenter to KBO 26.23092955 +/- 0.0002 # Hcoef: 10.04
The following table shows the complete astrometric record for 15VX164. 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 (15VX164) followed by the observatory code and reference code for the source of the astrometry.
2015 08 20.56746 03 23 25.699 +18 20 02.31 24.7w 15VX164 568 C~2lVY 2015 09 07.61267 03 23 26.692 +18 17 09.40 24.3w 15VX164 568 C~2lVY 2015 09 12.46374 03 23 18.664 +18 15 51.56 24.9w 15VX164 568 C~2lVY 2015 10 07.52101 03 21 45.863 +18 05 57.64 24.5w 15VX164 568 C~2lVY 2015 10 07.58040 03 21 45.546 +18 05 55.91 24.7w 15VX164 568 C~2lVY 2015 10 09.56029 03 21 34.981 +18 04 56.74 24.7w 15VX164 568 C~2lVY 2015 11 06.33360 03 18 33.649 +17 49 00.26 24.2r 15VX164 568 C~2lVY 2015 11 06.39716 03 18 33.180 +17 48 58.07 23.9r 15VX164 568 C~2lVY 2015 11 06.40423 03 18 33.116 +17 48 57.68 24.0r 15VX164 568 C~2lVY 2015 11 06.47375 03 18 32.612 +17 48 55.08 24.2r 15VX164 568 C~2lVY 2015 11 07.49015 03 18 25.226 +17 48 17.20 23.3w 15VX164 568 C~2lVY 2015 11 17.47136 03 17 11.801 +17 42 01.81 24.2w 15VX164 568 C~2lVY 2015 11 17.55969 03 17 11.146 +17 41 58.32 24.6w 15VX164 568 C~2lVY 2015 12 06.35508 03 14 58.238 +17 30 32.71 24.4w 15VX164 568 C~2lVY 2015 12 06.49265 03 14 57.320 +17 30 27.95 24.4w 15VX164 568 C~2lVY 2016 01 01.34294 03 12 37.228 +17 17 37.77 24.5w 15VX164 568 C~2lVY 2016 01 07.41130 03 12 15.591 +17 15 22.72 24.8w 15VX164 568 C~2lVY 2016 01 07.42868 03 12 15.512 +17 15 22.76 24.7w 15VX164 568 C~2lVY 2016 01 08.25624 03 12 12.983 +17 15 05.90 24.7w 15VX164 568 C~2lVY 2016 02 05.28768 03 11 47.299 +17 09 46.08 24.5w 15VX164 568 C~2lVY 2016 02 10.30807 03 11 55.720 +17 09 41.56 24.7w 15VX164 568 C~2lVY 2016 09 25.62123 03 35 51.368 +18 01 49.96 24.8w 15VX164 568 C~2lVY 2016 10 10.56080 03 34 44.648 +17 55 08.37 24.6w 15VX164 568 C~2lVY 2016 10 10.60927 03 34 44.386 +17 55 06.88 24.6w 15VX164 568 C~2lVY 2016 10 28.47058 03 32 54.597 +17 45 29.91 24.7w 15VX164 568 C~2lVY 2016 10 28.49380 03 32 54.446 +17 45 29.16 24.6w 15VX164 568 C~2lVY 2016 10 29.53251 03 32 47.310 +17 44 53.30 24.5w 15VX164 568 C~2lVY 2016 11 02.58549 03 32 18.921 +17 42 31.90 24.1w 15VX164 568 C~2lVY 2017 01 27.32464 03 24 40.928 +17 04 07.67 23.7w 15VX164 568 C~2lVY 2021 11 05.405020 04 37 47.308 +16 11 26.32 24.2G 15VX164 G37 C~5Baf 2021 11 05.446470 04 37 47.038 +16 11 25.26 15VX164 G37 C~5Baf 2021 11 05.488110 04 37 46.769 +16 11 24.05 15VX164 G37 C~5Baf
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 -0.05 0.00 -0.05
2 0.0494 0.00 -0.14 0.00 0.03
3 0.0627 0.00 0.16 0.00 0.01
4 0.1313 0.00 -0.08 0.00 -0.01
5 0.1315 0.00 -0.05 0.00 0.02
6 0.1369 0.00 -0.05 0.00 -0.01
7 0.2129 0.00 0.02 0.00 -0.07
8 0.2131 0.00 0.04 0.00 0.09
9 0.2131 0.00 -0.14 0.00 -0.04
10 0.2133 0.00 0.03 0.00 -0.05
11 0.2161 0.00 0.33 0.00 0.02
12 0.2434 0.00 -0.08 0.00 0.03
13 0.2436 0.00 -0.01 0.00 -0.10
14 0.2951 0.00 -0.05 0.00 -0.00
15 0.2955 0.00 0.09 0.00 0.03
16 0.3663 0.00 -0.09 0.00 -0.03
17 0.3829 0.00 0.22 0.00 -0.14
18 0.3829 0.00 -0.13 0.00 0.27
19 0.3852 0.00 -0.00 0.00 0.15
20 0.4619 0.00 -0.03 0.00 0.00
21 0.4757 0.00 0.07 0.00 -0.07
22 1.1008 0.00 0.12 0.00 -0.01
23 1.1417 0.00 -0.01 0.00 0.01
24 1.1418 0.00 0.03 0.00 -0.03
25 1.1907 0.00 -0.07 0.00 -0.06
26 1.1908 0.00 0.09 0.00 -0.01
27 1.1936 0.00 0.07 0.00 -0.03
28 1.2047 0.00 -0.03 0.00 0.05
29 1.4394 0.00 -0.12 0.00 0.03
30 6.2117 0.00 -0.01 0.00 -0.06
31 6.2119 0.00 -0.01 0.00 0.05
32 6.2120 0.00 0.02 0.00 0.01
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.
15VX164 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.711 39.710 39.711 ecceobj 0.337 0.337 0.337 incobj 16.840 16.840 16.840 qmin 25.355 25.359 25.325 qmax 54.362 54.354 54.367 amean 39.454 39.454 39.454 amin 38.964 38.977 38.966 amax 40.072 40.049 40.049 emean 0.337 0.337 0.338 emin 0.320 0.320 0.320 emax 0.357 0.357 0.358 imean 17.273 17.230 17.201 imin 16.476 16.471 16.371 imax 18.000 18.004 17.995 excite_mean 0.449 0.449 0.449 fracstop 1.000 1.000 1.000 cjmean 2.821 2.821 2.821 libcent 0 180.0 180.0 181.0 libamp 0 93.2 88.7 85.1 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 179.6 179.4 179.0 kozaiamp 180.0 179.9 180.0