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: 16FK59 # Created Wed Nov 27 02:10:36 2024 # Orbit generated from Bernstein formalism # Fitting 15 observations of 15 # Arc: 4.00d # First observation: 2016/03/28 # Last observation: 2016/04/01 Preliminary a, adot, b, bdot, g, gdot: 0.000003 0.069363 0.000000 -0.026103 0.042791 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 106.72 DOF: 25 RMS: 0.47 # Min/Max residuals: -0.91 0.99 # Exact a, adot, b, bdot, g, gdot: 1.745002E-05 3.383192E-02 -1.106060E-05 -2.560669E-02 3.712525E-02 2.119428E-02 # Covariance matrix: 2.1344E-10 4.9678E-07 1.4235E-13 -7.0356E-09 7.9337E-08 -3.2397E-07 4.9678E-07 1.1579E-03 3.3126E-10 -1.6396E-05 1.8490E-04 -7.5820E-04 1.4235E-13 3.3126E-10 2.6244E-13 -3.7570E-11 5.2922E-11 -1.4677E-10 -7.0356E-09 -1.6396E-05 -3.7570E-11 2.3878E-07 -2.6183E-06 1.0626E-05 7.9337E-08 1.8490E-04 5.2922E-11 -2.6183E-06 2.9527E-05 -1.2093E-04 -3.2397E-07 -7.5820E-04 -1.4677E-10 1.0626E-05 -1.2093E-04 9.3723E-04 # lat0 lon0 xBary yBary zBary JD0 -8.177680 -176.980491 -0.081060 -0.140785 -0.980868 2457475.761859 # Heliocentric elements and errors Epoch: 2457470.5000 = 2016/03/23 Mean Anomaly: 45.04244 +/- 43.465 Argument of Peri: 94.01765 +/- 96.824 Long of Asc Node: 352.93870 +/- 9.883 Inclination: 37.89489 +/- 26.694 Eccentricity: 0.46752331 +/- 0.6779 Semi-Major Axis: 33.14857913 +/- 18.3103 Time of Perihelion: 2448748.5182 +/- 4314.4 Perihelion: 17.65084557 +/- 24.4959 Aphelion: 48.64631269 +/- 35.0290 Period (y) 190.8559 +/- 158.13 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.61391978 +/- 3.8970 Ecliptic Y -1.54006671 +/- 0.2052 Ecliptic Z -3.83174575 +/- 0.5608 Ecliptic XDOT -0.00114523 +/- 0.0025 Ecliptic YDOT -0.00256584 +/- 0.0020 Ecliptic ZDOT -0.00209152 +/- 0.0006 # Distances at JD0 (AU) Heliocenter to KBO 27.92100726 +/- 3.8549 Geocenter to KBO 26.93584853 +/- 3.9425 # Hcoef: 9.64
The following table shows the complete astrometric record for 16FK59. 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 (16FK59) followed by the observatory code and reference code for the source of the astrometry.
2016 03 28.26107 11 57 58.37 -08 41 56.9 24.1V 16FK59 W84 C~1qoJ 2016 03 28.26801 11 57 58.36 -08 41 57.0 16FK59 W84 C~1qoJ 2016 03 28.27495 11 57 58.37 -08 41 57.0 16FK59 W84 C~1qoJ 2016 03 29.21769 11 57 51.38 -08 41 25.2 16FK59 W84 C~1qoJ 2016 03 29.22463 11 57 51.37 -08 41 25.2 16FK59 W84 C~1qoJ 2016 03 29.23157 11 57 51.37 -08 41 25.2 16FK59 W84 C~1qoJ 2016 03 30.23576 11 57 43.97 -08 40 51.2 16FK59 W84 C~1qoJ 2016 03 30.24270 11 57 43.97 -08 40 51.1 16FK59 W84 C~1qoJ 2016 03 30.24964 11 57 43.97 -08 40 51.2 16FK59 W84 C~1qoJ 2016 03 31.22827 11 57 36.80 -08 40 17.7 16FK59 W84 C~1qoJ 2016 03 31.23521 11 57 36.80 -08 40 17.9 16FK59 W84 C~1qoJ 2016 03 31.24215 11 57 36.79 -08 40 17.8 16FK59 W84 C~1qoJ 2016 04 01.24230 11 57 29.46 -08 39 43.7 16FK59 W84 C~1qoJ 2016 04 01.24924 11 57 29.48 -08 39 43.7 16FK59 W84 C~1qoJ 2016 04 01.25618 11 57 29.48 -08 39 43.5 16FK59 W84 C~1qoJ
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 -0.63 0.00 0.03
2 0.0000 -0.10 0.07 -0.15 -0.02
3 0.0000 0.04 0.99 -0.09 0.13
4 0.0026 -107.65 -0.83 -12.63 -0.12
5 0.0026 -107.78 -0.17 -12.69 -0.08
6 0.0027 -107.78 0.62 -12.69 0.01
7 0.0054 -221.92 -0.90 -25.66 -0.16
8 0.0054 -221.96 -0.15 -25.57 0.03
9 0.0054 -221.92 0.68 -25.66 0.03
10 0.0081 -332.74 -0.70 -37.73 0.10
11 0.0081 -332.66 0.16 -37.91 0.01
12 0.0082 -332.83 0.77 -37.88 0.13
13 0.0109 -446.07 -0.91 -50.36 -0.25
14 0.0109 -445.79 0.15 -50.24 -0.05
15 0.0109 -445.88 0.85 -50.06 0.22
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.
16FK59 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0