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: 16FD59 # Created Sat Apr 20 01:17:51 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 3.02d # First observation: 2016/03/28 # Last observation: 2016/03/31 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 61.77 DOF: 20 RMS: 0.40 # Min/Max residuals: -0.90 0.79 # Exact a, adot, b, bdot, g, gdot: 1.927451E-05 2.996298E-02 5.391705E-06 1.263391E-02 3.176671E-02 0.000000E+00 # Covariance matrix: 9.3158E-11 1.8448E-07 -2.4523E-12 -6.5611E-09 2.9919E-08 0.0000E+00 1.8448E-07 3.6669E-04 -4.8728E-09 -1.3037E-05 5.9452E-05 0.0000E+00 -2.4523E-12 -4.8728E-09 3.5761E-13 1.2621E-10 -7.9006E-10 0.0000E+00 -6.5611E-09 -1.3037E-05 1.2621E-10 4.7655E-07 -2.1138E-06 0.0000E+00 2.9919E-08 5.9452E-05 -7.9006E-10 -2.1138E-06 9.6392E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 4.2183E-04 # lat0 lon0 xBary yBary zBary JD0 -10.408294 176.987053 -0.181957 -0.176397 -0.961340 2457475.599359 # Heliocentric elements and errors Epoch: 2457470.5000 = 2016/03/23 Mean Anomaly: 176.52124 +/- 264.546 Argument of Peri: 158.03335 +/- 230.777 Long of Asc Node: 199.88905 +/- 13.984 Inclination: 24.88414 +/- 12.879 Eccentricity: 0.13505779 +/- 0.6722 Semi-Major Axis: 28.58958777 +/- 14.2276 Time of Perihelion: 2485927.7918 +/- 35578.7 Perihelion: 24.72834131 +/- 22.8207 Aphelion: 32.45083422 +/- 25.1026 Period (y) 152.8692 +/- 114.11 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -31.90814577 +/- 3.0218 Ecliptic Y 1.49444111 +/- 0.1593 Ecliptic Z -5.68698618 +/- 0.5558 Ecliptic XDOT -0.00033212 +/- 0.0017 Ecliptic YDOT -0.00257546 +/- 0.0014 Ecliptic ZDOT 0.00107096 +/- 0.0004 # Distances at JD0 (AU) Heliocenter to KBO 32.44541466 +/- 2.9734 Geocenter to KBO 31.47949303 +/- 3.0766 # Hcoef: 8.96
The following table shows the complete astrometric record for 16FD59. 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 (16FD59) followed by the observatory code and reference code for the source of the astrometry.
2016 03 28.09857 11 32 17.98 -08 20 53.8 24.1V 16FD59 W84 C~1qoJ 2016 03 28.10551 11 32 17.99 -08 20 54.0 16FD59 W84 C~1qoJ 2016 03 28.11245 11 32 17.99 -08 20 54.2 16FD59 W84 C~1qoJ 2016 03 29.08100 11 32 12.57 -08 20 07.3 16FD59 W84 C~1qoJ 2016 03 29.08794 11 32 12.57 -08 20 07.2 16FD59 W84 C~1qoJ 2016 03 29.09488 11 32 12.57 -08 20 07.3 16FD59 W84 C~1qoJ 2016 03 30.10655 11 32 06.97 -08 19 18.2 16FD59 W84 C~1qoJ 2016 03 30.11349 11 32 06.96 -08 19 18.2 16FD59 W84 C~1qoJ 2016 03 30.12043 11 32 06.96 -08 19 18.0 16FD59 W84 C~1qoJ 2016 03 31.09992 11 32 01.53 -08 18 30.7 16FD59 W84 C~1qoJ 2016 03 31.10686 11 32 01.52 -08 18 30.7 16FD59 W84 C~1qoJ 2016 03 31.11380 11 32 01.51 -08 18 30.6 16FD59 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 -0.90 0.00 0.19
2 0.0000 0.22 -0.02 -0.12 -0.01
3 0.0000 0.30 0.72 -0.31 -0.26
4 0.0027 -92.21 -0.64 10.35 -0.01
5 0.0027 -92.25 -0.02 10.44 0.01
6 0.0027 -92.21 0.68 10.35 -0.15
7 0.0055 -188.04 -0.31 21.94 0.25
8 0.0055 -188.18 0.22 21.88 0.12
9 0.0055 -188.26 0.79 22.07 0.23
10 0.0082 -281.06 -0.66 33.02 -0.01
11 0.0082 -281.20 -0.14 32.96 -0.14
12 0.0083 -281.37 0.34 32.99 -0.19
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.
16FD59 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