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: 14WF602 # Created Sat Apr 20 01:16:52 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 4.03y # First observation: 2014/11/21 # Last observation: 2018/12/01 Preliminary a, adot, b, bdot, g, gdot: 0.000145 0.023712 -0.000199 -0.011901 0.024185 0.000000 # Chi-squared of fit: 6.23 DOF: 18 RMS: 0.13 # Min/Max residuals: -0.24 0.35 # Exact a, adot, b, bdot, g, gdot: 1.663179E-05 2.436192E-02 -9.094660E-06 -1.223556E-02 2.332153E-02 7.345253E-03 # Covariance matrix: 2.9106E-13 -2.7506E-13 -2.1094E-14 9.6272E-14 -4.2463E-14 -2.1809E-12 -2.7506E-13 1.0188E-12 1.3492E-13 -4.8546E-13 -2.3312E-13 1.0683E-11 -2.1094E-14 1.3492E-13 2.6313E-13 -1.4788E-13 -8.6677E-14 1.4894E-12 9.6272E-14 -4.8546E-13 -1.4788E-13 2.9814E-13 1.3902E-13 -5.3705E-12 -4.2463E-14 -2.3312E-13 -8.6677E-14 1.3902E-13 8.1942E-13 -2.5301E-12 -2.1809E-12 1.0683E-11 1.4894E-12 -5.3705E-12 -2.5301E-12 1.1822E-10 # lat0 lon0 xBary yBary zBary JD0 -32.024467 -7.618873 -0.902848 -0.213294 -0.341378 2456982.635448 # Heliocentric elements and errors Epoch: 2456980.5000 = 2014/11/19 Mean Anomaly: 7.52811 +/- 0.015 Argument of Peri: 192.95734 +/- 0.034 Long of Asc Node: 126.90097 +/- 0.001 Inclination: 40.27124 +/- 0.000 Eccentricity: 0.63945352 +/- 0.0005 Semi-Major Axis: 108.15198321 +/- 0.1437 Time of Perihelion: 2448389.7004 +/- 4.3 Perihelion: 38.99381701 +/- 0.0784 Aphelion: 177.31014940 +/- 0.2428 Period (y) 1124.7602 +/- 2.24 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.54857459 +/- 0.0014 Ecliptic Y -3.97655919 +/- 0.0002 Ecliptic Z -22.73823557 +/- 0.0009 Ecliptic XDOT 0.00034459 +/- 0.0000 Ecliptic YDOT 0.00283381 +/- 0.0000 Ecliptic ZDOT -0.00167498 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.22775364 +/- 0.0013 Geocenter to KBO 42.87883472 +/- 0.0017 # Hcoef: 7.59
The following table shows the complete astrometric record for 14WF602. 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 (14WF602) followed by the observatory code and reference code for the source of the astrometry.
2014 11 21.13467 00 29 14.464 -32 05 20.52 24.0r 14WF602 W84 C~55TE 2014 12 11.09693 00 28 40.861 -31 55 35.18 24.2r 14WF602 W84 C~55TE 2014 12 12.11881 00 28 40.208 -31 54 56.90 23.3i 14WF602 W84 C~55TE 2014 12 14.05246 00 28 39.155 -31 53 43.31 24.2r 14WF602 W84 C~55TE 2014 12 16.06878 00 28 38.501 -31 52 23.06 24.1r 14WF602 W84 C~55TE 2015 09 02.25817 00 42 13.897 -31 41 09.94 22.3Y 14WF602 W84 C~55TE 2015 11 05.11889 00 37 26.970 -32 06 23.84 24.0r 14WF602 W84 C~55TE 2016 12 19.11279 00 42 57.064 -31 44 13.32 24.4r 14WF602 W84 C~55TE 2017 10 20.29298 00 52 51.787 -31 55 31.59 24.1r 14WF602 W84 C~55TE 2017 10 20.29436 00 52 51.791 -31 55 31.58 24.7g 14WF602 W84 C~55TE 2018 12 01.04670 00 57 15.707 -31 43 17.03 24.2r 14WF602 W84 C~55TE 2018 12 01.04808 00 57 15.710 -31 43 16.77 24.9g 14WF602 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 -0.02 0.00 0.16
2 0.0547 -106.39 -0.21 716.93 0.07
3 0.0575 -95.98 0.35 754.70 -0.04
4 0.0627 -73.70 -0.21 826.11 -0.24
5 0.0683 -43.83 0.14 901.06 0.04
6 0.7806 9417.61 -0.03 -3480.02 0.05
7 0.9555 5483.02 -0.07 -3021.61 -0.08
8 2.0780 9807.84 -0.01 -3911.62 0.06
9 2.9135 16048.56 0.01 -8329.55 -0.00
10 2.9135 16048.60 0.14 -8329.56 -0.05
11 4.0271 19336.30 -0.13 -9453.24 -0.07
12 4.0271 19336.46 0.05 -9453.04 0.08
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.
14WF602 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 110.648 111.107 110.193 ecceobj 0.647 0.649 0.646 incobj 40.224 40.224 40.223 qmin 36.382 36.085 36.041 qmax 187.076 188.098 185.597 amean 108.962 109.501 108.408 amin 106.844 107.401 106.246 amax 112.340 112.648 111.391 emean 0.650 0.653 0.650 emin 0.634 0.637 0.633 emax 0.667 0.670 0.667 imean 38.092 37.937 37.908 imin 37.294 37.114 37.011 imax 39.108 39.123 39.109 excite_mean 0.896 0.897 0.894 fracstop 1.000 1.000 1.000 cjmean 2.553 2.552 2.553 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 227.2 230.1 230.2 kozaiamp 34.4 37.0 37.1