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: 15VJ169 # Created Mon Apr 28 01:10:41 2025 # Orbit generated from Bernstein formalism # Fitting 36 observations of 37 # Arc: 2.19y # First observation: 2014/11/17 # Last observation: 2017/01/26 Preliminary a, adot, b, bdot, g, gdot: -0.000045 0.025393 -0.000001 -0.000845 0.025136 0.000000 # Chi-squared of fit: 11.06 DOF: 66 RMS: 0.10 # Min/Max residuals: -0.49 0.22 # Exact a, adot, b, bdot, g, gdot: 1.575814E-05 2.546445E-02 -2.253309E-07 -8.488675E-04 2.520358E-02 -8.738267E-04 # Covariance matrix: 2.7344E-13 -3.7287E-13 -2.5096E-15 8.2171E-15 -1.6732E-13 -4.6418E-12 -3.7287E-13 7.7397E-13 6.8276E-15 -2.1269E-14 3.7030E-13 1.2223E-11 -2.5096E-15 6.8276E-15 1.6619E-13 -1.1032E-13 3.1126E-15 1.2598E-13 8.2171E-15 -2.1269E-14 -1.1032E-13 9.7679E-14 -1.1464E-14 -3.8477E-13 -1.6732E-13 3.7030E-13 3.1126E-15 -1.1464E-14 3.0698E-13 6.2324E-12 -4.6418E-12 1.2223E-11 1.2598E-13 -3.8477E-13 6.2324E-12 2.2265E-10 # lat0 lon0 xBary yBary zBary JD0 -2.224454 46.710793 -0.133597 -0.037907 -0.979681 2456978.787348 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 330.08251 +/- 0.406 Argument of Peri: 262.53359 +/- 0.473 Long of Asc Node: 178.16050 +/- 0.011 Inclination: 2.88668 +/- 0.000 Eccentricity: 0.06312800 +/- 0.0003 Semi-Major Axis: 42.96088322 +/- 0.0033 Time of Perihelion: 2465517.8369 +/- 116.0 Perihelion: 40.24884851 +/- 0.0147 Aphelion: 45.67291794 +/- 0.0148 Period (y) 281.5905 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.75710403 +/- 0.0006 Ecliptic Y 29.66589591 +/- 0.0006 Ecliptic Z -1.54005447 +/- 0.0000 Ecliptic XDOT -0.00208528 +/- 0.0000 Ecliptic YDOT 0.00182011 +/- 0.0000 Ecliptic ZDOT -0.00008836 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.65579875 +/- 0.0006 Geocenter to KBO 39.67690642 +/- 0.0009 # Hcoef: 8.52
The following table shows the complete astrometric record for 15VJ169. 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 (15VJ169) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.28657 02 59 35.961 +14 41 50.45 24.6r 15VJ169 568 C~2nw1 2014 11 17.39535 02 59 35.409 +14 41 48.28 24.5r 15VJ169 568 C~2nw1 2014 11 17.50914 02 59 34.833 +14 41 45.74 24.5r 15VJ169 568 C~2nw1 2014 11 19.30032 02 59 25.986 +14 41 08.20 24.3r 15VJ169 568 C~2nw1 2014 11 23.40372 02 59 05.912 +14 39 43.67 24.3r 15VJ169 568 C~2nw1 2015 08 12.57765 03 10 11.981 +15 26 58.51 25.0w 15VJ169 568 C~2nw1 2015 09 07.53691 03 10 04.176 +15 24 47.55 24.6w 15VJ169 568 C~2nw1 2015 09 12.53366 03 09 55.359 +15 23 53.95 24.8w 15VJ169 568 C~2nw1 2015 10 07.47747 03 08 40.544 +15 17 33.99 24.8w 15VJ169 568 C~2nw1 2015 10 08.48165 03 08 36.593 +15 17 15.53 24.7w 15VJ169 568 C~2nw1 2015 10 08.53987 03 08 36.375 +15 17 14.49 25.7w 15VJ169 568 C~2nw1 2015 10 08.55151 03 08 36.347 +15 17 14.33 25.5w 15VJ169 568 C~2nw1 2015 10 08.56473 03 08 36.276 +15 17 13.81 24.7w 15VJ169 568 C~2nw1 2015 11 06.29678 03 06 23.870 +15 07 24.60 24.6r 15VJ169 568 C~2nw1 2015 11 06.36009 03 06 23.575 +15 07 23.24 24.1r 15VJ169 568 C~2nw1 2015 11 06.43072 03 06 23.207 +15 07 21.54 24.6r 15VJ169 568 C~2nw1 2015 11 06.50005 03 06 22.859 +15 07 20.16 24.6r 15VJ169 568 C~2nw1 2015 11 07.51946 03 06 17.740 +15 06 58.34 24.8w 15VJ169 568 C~2nw1 2015 11 17.28542 03 05 28.595 +15 03 32.00 24.7w 15VJ169 568 C~2nw1 2015 11 17.33469 03 05 28.343 +15 03 30.93 24.6w 15VJ169 568 C~2nw1 2015 12 06.41351 03 03 56.986 +14 57 22.71 24.8w 15VJ169 568 C~2nw1 2015 12 13.34802 03 03 27.334 +14 55 28.13 24.8w 15VJ169 568 C~2nw1 2015 12 13.40657 03 03 27.090 +14 55 27.19 25.0w 15VJ169 568 C~2nw1 2016 01 01.40134 03 02 21.777 +14 51 32.11 24.9w 15VJ169 568 C~2nw1 2016 01 07.34755 03 02 07.189 +14 50 45.89 24.5w 15VJ169 568 C~2nw1 2016 02 04.27768 03 01 43.591 +14 50 28.97 24.8w 15VJ169 568 C~2nw1 2016 02 10.26747 03 01 48.747 +14 51 09.33 24.8w 15VJ169 568 C~2nw1 2016 09 26.60468 03 15 07.875 +15 41 00.64 24.6w 15VJ169 568 C~2nw1 2016 10 10.41386 03 14 18.096 +15 37 06.25 24.8w 15VJ169 568 C~2nw1 2016 10 10.47261 03 14 17.853 +15 37 05.15 24.9w 15VJ169 568 C~2nw1 2016 10 27.50838 03 13 01.532 +15 31 29.85 24.6w 15VJ169 568 C~2nw1 2016 11 03.53341 03 12 26.994 +15 29 03.98 24.6w 15VJ169 568 C~2nw1 2016 12 28.40571 03 08 20.071 +15 13 11.75 25.3w 15VJ169 568 C~2nw1 2016 12 29.36323 03 08 17.134 +15 13 01.98 24.8w 15VJ169 568 C~2nw1 2017 01 01.26044 03 08 08.704 +15 12 34.62 24.9w 15VJ169 568 C~2nw1 2017 01 02.37026 03 08 05.646 +15 12 25.00 24.9w 15VJ169 568 C~2nw1 2017 01 26.26424 03 07 27.464 +15 10 57.87 24.6w 15VJ169 568 C~2nw1
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 0.04 0.00 -0.06
2 0.0003 -8.30 0.03 0.18 0.06
3 0.0006 -17.03 -0.03 0.10 -0.06
4 0.0055 -150.77 -0.06 0.29 -0.01
5 0.0167 -454.08 -0.03 1.44 -0.12
6 0.7345 9608.48 -0.49 57.92 0.03
7 0.8056 9464.10 0.18 -37.73 0.06
8 0.8193 9326.57 0.03 -54.84 -0.01
9 0.8876 8179.78 -0.04 -126.84 -0.00
10 0.8903 8119.66 -0.07 -129.05 0.12
11 0.8905 8116.33 0.19 -129.19 0.09
12 0.8905 8115.90 ( 0.47) -129.23 ( 0.07)
13 0.8906 8114.77 0.16 -129.45 -0.13
14 0.9692 6107.74 -0.20 -172.17 0.15
15 0.9694 6103.25 0.16 -172.30 0.03
16 0.9696 6097.66 0.00 -172.48 -0.13
17 0.9698 6092.43 0.11 -172.42 -0.05
18 0.9726 6015.09 0.11 -173.03 -0.06
19 0.9993 5273.47 0.08 -175.52 0.06
20 0.9994 5269.66 0.04 -175.54 0.01
21 1.0517 3895.16 -0.16 -163.43 0.22
22 1.0707 3450.35 0.02 -154.22 -0.01
23 1.0708 3446.69 0.01 -154.14 -0.04
24 1.1228 2471.69 -0.11 -116.29 0.06
25 1.1391 2255.65 0.07 -101.63 -0.01
26 1.2156 1922.37 -0.04 -22.24 -0.03
27 1.2320 2005.44 0.05 -4.40 0.02
28 1.8599 13967.84 0.03 -275.69 -0.01
29 1.8977 13209.14 -0.01 -310.92 -0.04
30 1.8978 13205.45 -0.02 -311.05 -0.07
31 1.9445 12048.85 -0.01 -340.25 -0.05
32 1.9637 11527.11 0.02 -347.19 -0.03
33 2.1139 7822.76 -0.06 -298.61 0.03
34 2.1166 7779.14 -0.05 -296.42 -0.02
35 2.1245 7654.10 0.01 -289.47 -0.02
36 2.1275 7608.83 0.01 -286.65 0.02
37 2.1930 7052.64 0.00 -219.45 0.00
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.
15VJ169 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.289 43.297 43.281 ecceobj 0.067 0.067 0.067 incobj 2.876 2.877 2.876 qmin 38.894 38.850 38.858 qmax 47.184 47.335 47.266 amean 42.948 42.956 42.940 amin 42.606 42.613 42.598 amax 43.298 43.325 43.313 emean 0.072 0.072 0.072 emin 0.051 0.051 0.051 emax 0.091 0.093 0.092 imean 3.897 3.894 3.899 imin 2.713 2.713 2.711 imax 4.859 4.854 4.868 excite_mean 0.099 0.099 0.099 fracstop 1.000 1.000 1.000 cjmean 3.077 3.077 3.077 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 184.9 185.1 184.7 kozaiamp 180.0 180.0 180.0