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: 15VN164 # Created Sun Dec 22 02:10:32 2024 # Orbit generated from Bernstein formalism # Fitting 38 observations of 38 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000275 0.024928 -0.000044 0.003984 0.025886 0.000000 # Chi-squared of fit: 6.25 DOF: 70 RMS: 0.07 # Min/Max residuals: -0.14 0.23 # Exact a, adot, b, bdot, g, gdot: 1.540958E-05 2.458428E-02 3.074845E-06 3.932117E-03 2.582107E-02 -6.281323E-03 # Covariance matrix: 2.4385E-13 -2.7169E-13 1.6332E-14 -3.1475E-14 -1.2093E-13 -2.6075E-12 -2.7169E-13 4.2570E-13 -3.0493E-14 5.9043E-14 2.0659E-13 4.8877E-12 1.6332E-14 -3.0493E-14 1.3926E-13 -7.8198E-14 -1.7272E-14 -4.0158E-13 -3.1475E-14 5.9043E-14 -7.8198E-14 6.4125E-14 3.1958E-14 7.7839E-13 -1.2093E-13 2.0659E-13 -1.7272E-14 3.1958E-14 2.1897E-13 2.6657E-12 -2.6075E-12 4.8877E-12 -4.0158E-13 7.7839E-13 2.6657E-12 6.4425E-11 # lat0 lon0 xBary yBary zBary JD0 -2.532722 46.781619 -0.132385 -0.043185 -0.979627 2456978.787348 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 282.87718 +/- 0.044 Argument of Peri: 89.84483 +/- 0.019 Long of Asc Node: 62.03662 +/- 0.001 Inclination: 9.42704 +/- 0.001 Eccentricity: 0.24351422 +/- 0.0003 Semi-Major Axis: 39.53217865 +/- 0.0066 Time of Perihelion: 2476419.8437 +/- 9.9 Perihelion: 29.90553106 +/- 0.0127 Aphelion: 49.15882624 +/- 0.0143 Period (y) 248.5618 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.06624761 +/- 0.0005 Ecliptic Y 29.00220874 +/- 0.0005 Ecliptic Z -1.71128628 +/- 0.0000 Ecliptic XDOT -0.00234693 +/- 0.0000 Ecliptic YDOT 0.00130860 +/- 0.0000 Ecliptic ZDOT 0.00044605 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.70690585 +/- 0.0005 Geocenter to KBO 38.72805738 +/- 0.0007 # Hcoef: 8.69
The following table shows the complete astrometric record for 15VN164. 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 (15VN164) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.28657 03 00 14.324 +14 25 17.34 24.0r 15VN164 568 C~2lVX 2014 11 17.39535 03 00 13.747 +14 25 15.47 24.8r 15VN164 568 C~2lVX 2014 11 17.50914 03 00 13.148 +14 25 13.21 24.6r 15VN164 568 C~2lVX 2014 11 19.30032 03 00 03.902 +14 24 39.20 24.3r 15VN164 568 C~2lVX 2014 11 23.40372 02 59 42.897 +14 23 22.95 24.4r 15VN164 568 C~2lVX 2015 08 12.57765 03 10 38.409 +15 22 23.59 24.3w 15VN164 568 C~2lVX 2015 09 07.53691 03 10 28.101 +15 21 08.31 25.4w 15VN164 568 C~2lVX 2015 09 12.53366 03 10 18.599 +15 20 24.96 24.8w 15VN164 568 C~2lVX 2015 10 07.47747 03 08 59.328 +15 14 53.35 25.7w 15VN164 568 C~2lVX 2015 10 08.56473 03 08 54.825 +15 14 35.42 24.3w 15VN164 568 C~2lVX 2015 11 06.29678 03 06 35.675 +15 05 38.45 24.2r 15VN164 568 C~2lVX 2015 11 06.36009 03 06 35.349 +15 05 37.10 24.3r 15VN164 568 C~2lVX 2015 11 06.43072 03 06 34.971 +15 05 35.81 25.3r 15VN164 568 C~2lVX 2015 11 06.50005 03 06 34.593 +15 05 34.38 24.8r 15VN164 568 C~2lVX 2015 11 07.51946 03 06 29.218 +15 05 14.30 24.5w 15VN164 568 C~2lVX 2015 11 17.28542 03 05 37.593 +15 02 05.50 24.6w 15VN164 568 C~2lVX 2015 11 17.33469 03 05 37.330 +15 02 04.59 24.6w 15VN164 568 C~2lVX 2015 12 06.41351 03 04 01.224 +14 56 31.63 24.8w 15VN164 568 C~2lVX 2015 12 13.34802 03 03 29.918 +14 54 50.43 25.1w 15VN164 568 C~2lVX 2015 12 13.40657 03 03 29.662 +14 54 49.66 24.7w 15VN164 568 C~2lVX 2016 01 01.40134 03 02 20.348 +14 51 32.83 25.4w 15VN164 568 C~2lVX 2016 01 07.34755 03 02 04.690 +14 50 59.67 25.6w 15VN164 568 C~2lVX 2016 02 04.27768 03 01 37.452 +14 51 47.59 25.0w 15VN164 568 C~2lVX 2016 02 10.26747 03 01 42.150 +14 52 42.94 24.7w 15VN164 568 C~2lVX 2016 09 06.61716 03 15 53.930 +15 56 56.40 15VN164 568 C~2lVX 2016 09 26.60468 03 15 04.879 +15 53 35.14 25.0w 15VN164 568 C~2lVX 2016 10 10.41386 03 14 11.991 +15 50 09.83 24.7w 15VN164 568 C~2lVX 2016 10 10.47261 03 14 11.739 +15 50 08.84 25.0w 15VN164 568 C~2lVX 2016 10 27.50838 03 12 50.982 +15 45 06.34 25.1w 15VN164 568 C~2lVX 2016 11 03.53341 03 12 14.489 +15 42 53.15 24.8w 15VN164 568 C~2lVX 2016 12 29.36323 03 07 49.976 +15 28 25.40 24.6w 15VN164 568 C~2lVX 2017 01 01.26044 03 07 40.960 +15 28 03.23 24.8w 15VN164 568 C~2lVX 2017 01 02.37026 03 07 37.688 +15 27 55.44 24.9w 15VN164 568 C~2lVX 2017 01 26.26424 03 06 55.936 +15 27 13.71 24.7w 15VN164 568 C~2lVX 2017 09 15.60092 03 21 09.049 +16 31 32.76 24.9w 15VN164 568 C~2lVX 2017 09 22.58685 03 20 51.123 +16 30 24.11 24.8w 15VN164 568 C~2lVX 2017 12 16.38250 03 14 10.131 +16 07 24.07 24.8w 15VN164 568 C~2lVX 2017 12 16.38715 03 14 10.103 +16 07 24.07 24.8w 15VN164 568 C~2lVX
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 -0.07 0.00 -0.14
2 0.0003 -8.57 -0.06 0.56 0.07
3 0.0006 -17.56 -0.06 0.84 -0.01
4 0.0055 -156.02 0.02 6.00 0.00
5 0.0167 -470.32 0.10 18.78 -0.06
6 0.7345 9647.54 0.02 799.81 0.05
7 0.8056 9483.30 -0.02 767.56 0.00
8 0.8193 9338.95 -0.04 762.96 -0.02
9 0.8876 8142.89 -0.10 754.65 -0.03
10 0.8906 8075.20 0.06 755.11 0.08
11 0.9692 5988.15 -0.06 788.83 0.21
12 0.9694 5983.24 0.07 788.83 0.04
13 0.9696 5977.62 0.10 789.09 0.12
14 0.9698 5971.95 -0.01 789.22 0.09
15 0.9726 5891.52 -0.02 791.28 -0.03
16 0.9993 5120.10 -0.03 815.40 -0.02
17 0.9994 5116.19 -0.02 815.58 -0.01
18 1.0517 3685.20 0.01 880.41 0.08
19 1.0707 3221.06 -0.03 909.09 -0.03
20 1.0708 3217.28 0.01 909.38 -0.00
21 1.1228 2197.21 -0.11 1000.07 -0.12
22 1.1391 1969.93 0.23 1031.60 0.11
23 1.2156 1604.13 -0.00 1188.01 -0.08
24 1.2320 1685.01 0.06 1222.10 -0.12
25 1.8051 14610.22 -0.01 1582.63 -0.03
26 1.8599 13871.11 -0.05 1575.46 -0.04
27 1.8977 13077.49 -0.03 1579.90 -0.03
28 1.8978 13073.71 0.04 1579.91 -0.08
29 1.9445 11865.19 0.06 1599.02 -0.06
30 1.9637 11320.15 0.11 1611.70 -0.04
31 2.1166 7398.01 -0.05 1809.98 -0.03
32 2.1245 7266.40 -0.02 1824.24 0.08
33 2.1275 7218.71 -0.02 1829.67 -0.03
34 2.1930 6626.04 -0.04 1954.69 -0.06
35 2.8291 19567.58 -0.07 2407.81 0.00
36 2.8482 19298.42 0.14 2407.84 -0.04
37 3.0803 13328.00 -0.01 2586.28 0.03
38 3.0804 13327.61 -0.10 2586.39 0.12
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.
15VN164 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.739 39.755 39.723 ecceobj 0.238 0.239 0.238 incobj 9.405 9.406 9.405 qmin 29.039 29.084 29.006 qmax 50.321 50.384 50.341 amean 39.455 39.455 39.455 amin 39.022 39.012 39.029 amax 39.965 39.978 39.957 emean 0.240 0.239 0.240 emin 0.220 0.220 0.219 emax 0.261 0.262 0.262 imean 8.236 8.335 8.154 imin 7.334 7.531 7.167 imax 8.879 8.909 8.845 excite_mean 0.279 0.280 0.279 fracstop 1.000 1.000 1.000 cjmean 2.963 2.962 2.963 libcent 0 179.7 179.9 180.0 libamp 0 71.8 74.7 69.7 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 90.0 90.2 89.8 kozaiamp 27.6 26.7 28.3