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: 14WB602 # Created Fri Nov 22 02:10:12 2024 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 4.03y # First observation: 2014/11/18 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: 0.000037 0.027696 -0.000035 -0.005538 0.027589 0.000000 # Chi-squared of fit: 6.11 DOF: 30 RMS: 0.10 # Min/Max residuals: -0.31 0.18 # Exact a, adot, b, bdot, g, gdot: 1.663188E-05 2.780016E-02 -3.486865E-06 -5.555430E-03 2.638440E-02 1.401933E-03 # Covariance matrix: 2.8642E-13 -2.2928E-13 -5.5936E-15 2.9258E-14 -5.8558E-14 -1.4636E-12 -2.2928E-13 7.3231E-13 2.2351E-14 -1.3771E-13 -9.1063E-15 6.6253E-12 -5.5936E-15 2.2351E-14 2.4506E-13 -8.2930E-14 4.4770E-15 2.1525E-13 2.9258E-14 -1.3771E-13 -8.2930E-14 6.5217E-14 5.8697E-15 -1.3121E-12 -5.8558E-14 -9.1063E-15 4.4770E-15 5.8697E-15 3.8906E-13 7.7174E-14 -1.4636E-12 6.6253E-12 2.1525E-13 -1.3121E-12 7.7174E-14 6.3278E-11 # lat0 lon0 xBary yBary zBary JD0 -28.933391 -8.217989 -0.885626 -0.213088 -0.385866 2456979.631548 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 26.33318 +/- 0.069 Argument of Peri: 216.66671 +/- 0.098 Long of Asc Node: 104.75243 +/- 0.001 Inclination: 30.37135 +/- 0.000 Eccentricity: 0.13756347 +/- 0.0002 Semi-Major Axis: 43.45405268 +/- 0.0069 Time of Perihelion: 2449317.2717 +/- 19.9 Perihelion: 37.47636221 +/- 0.0118 Aphelion: 49.43174314 +/- 0.0128 Period (y) 286.4532 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.39007178 +/- 0.0008 Ecliptic Y -3.92613739 +/- 0.0001 Ecliptic Z -18.33647905 +/- 0.0004 Ecliptic XDOT 0.00025806 +/- 0.0000 Ecliptic YDOT 0.00287183 +/- 0.0000 Ecliptic ZDOT -0.00057480 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.29540328 +/- 0.0007 Geocenter to KBO 37.90118276 +/- 0.0009 # Hcoef: 7.72
The following table shows the complete astrometric record for 14WB602. 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 (14WB602) followed by the observatory code and reference code for the source of the astrometry.
2014 11 18.13077 00 20 29.673 -29 34 46.55 24.2r 14WB602 W84 C~55TD 2014 11 18.17608 00 20 29.535 -29 34 45.54 24.7g 14WB602 W84 C~55TD 2014 11 21.14066 00 20 20.898 -29 33 34.12 24.4g 14WB602 W84 C~55TD 2014 11 21.14206 00 20 20.890 -29 33 34.02 23.5i 14WB602 W84 C~55TD 2014 12 12.07222 00 19 45.305 -29 21 26.12 22.7i 14WB602 W84 C~55TD 2015 11 14.05695 00 27 52.756 -29 09 23.19 23.9r 14WB602 W84 C~55TD 2016 08 14.38935 00 42 05.871 -28 02 19.33 24.3g 14WB602 W84 C~55TD 2016 11 04.09479 00 35 33.798 -28 42 53.21 23.3r 14WB602 W84 C~55TD 2017 09 24.23315 00 46 05.664 -28 02 27.22 24.2g 14WB602 W84 C~55TD 2017 09 24.23453 00 46 05.635 -28 02 27.23 23.0r 14WB602 W84 C~55TD 2017 09 24.23591 00 46 05.621 -28 02 27.16 23.2i 14WB602 W84 C~55TD 2017 09 26.34959 00 45 54.404 -28 03 38.05 23.5g 14WB602 W84 C~55TD 2017 11 09.22239 00 42 11.899 -28 12 36.27 22.7z 14WB602 W84 C~55TD 2017 11 26.17719 00 41 12.322 -28 07 21.72 23.0i 14WB602 W84 C~55TD 2017 12 09.04570 00 40 44.575 -28 00 20.24 24.0r 14WB602 W84 C~55TD 2018 11 15.12889 00 48 42.199 -27 40 42.90 23.1i 14WB602 W84 C~55TE 2018 11 29.12106 00 47 55.865 -27 35 43.25 23.8r 14WB602 W84 C~55TE 2018 11 29.12243 00 47 55.860 -27 35 43.26 24.7g 14WB602 W84 C~55TE
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 0.03
2 0.0001 -1.15 0.04 1.72 -0.02
3 0.0082 -69.31 -0.05 116.40 0.08
4 0.0082 -69.36 -0.06 116.53 0.16
5 0.0655 -155.08 0.01 975.90 -0.05
6 0.9882 5845.62 0.14 -1310.41 -0.11
7 1.7392 17676.11 -0.08 -3179.16 -0.03
8 1.9629 11940.93 0.10 -2781.45 -0.04
9 2.8504 20453.60 0.12 -4771.75 -0.31
10 2.8504 20453.26 -0.11 -4771.57 -0.13
11 2.8504 20453.13 -0.12 -4771.41 0.01
12 2.8562 20287.43 -0.02 -4758.32 -0.11
13 2.9763 17440.09 -0.13 -3757.34 0.01
14 3.0227 16904.82 0.09 -3092.99 0.18
15 3.0579 16790.56 -0.06 -2543.54 0.15
16 3.9918 22931.42 -0.07 -4689.05 0.03
17 4.0301 22545.12 0.11 -4115.86 0.10
18 4.0301 22545.05 0.07 -4115.83 0.06
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.
14WB602 quality flag:2 Type: 7:4EII 7:4EII SCATNEAR axisobj 43.834 43.857 43.811 ecceobj 0.145 0.145 0.144 incobj 30.371 30.372 30.371 qmin 33.596 37.235 36.067 qmax 54.388 50.491 51.874 amean 43.724 43.725 43.722 amin 43.291 43.334 43.301 amax 44.218 44.115 44.180 emean 0.161 0.065 0.150 emin 0.095 0.037 0.130 emax 0.231 0.146 0.174 imean 28.323 29.564 28.574 imin 27.106 28.716 28.042 imax 29.405 29.947 28.888 excite_mean 0.503 0.498 0.501 fracstop 1.000 1.000 1.000 cjmean 2.781 2.781 2.782 libcent 0 180.0 182.6 -180.0 libamp 0 148.8 110.7 -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 171.2 180.5 180.5 kozaiamp 180.0 76.4 180.0