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: 16RH82 # Created Wed May 8 01:17:55 2024 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 3.89y # First observation: 2014/10/23 # Last observation: 2018/09/14 Preliminary a, adot, b, bdot, g, gdot: -0.000172 0.023026 -0.000021 -0.000042 0.024611 0.000000 # Chi-squared of fit: 4.10 DOF: 16 RMS: 0.11 # Min/Max residuals: -0.26 0.22 # Exact a, adot, b, bdot, g, gdot: 1.535161E-05 2.305185E-02 4.113816E-09 -4.621289E-05 2.375151E-02 7.863482E-04 # Covariance matrix: 1.4088E-12 -9.3984E-13 -4.6949E-16 1.3206E-15 -3.7867E-13 -6.2707E-12 -9.3984E-13 1.0290E-12 -3.5866E-15 -9.7436E-16 8.2178E-13 9.5375E-12 -4.6949E-16 -3.5866E-15 9.4557E-13 -3.1756E-13 -1.8760E-14 -6.1915E-14 1.3206E-15 -9.7436E-16 -3.1756E-13 1.2437E-13 2.5478E-15 -4.9346E-15 -3.7867E-13 8.2178E-13 -1.8760E-14 2.5478E-15 1.7317E-12 1.0195E-11 -6.2707E-12 9.5375E-12 -6.1915E-14 -4.9346E-15 1.0195E-11 1.0293E-10 # lat0 lon0 xBary yBary zBary JD0 -2.470144 -1.155930 -0.506124 -0.036831 -0.857854 2456953.693748 # Heliocentric elements and errors Epoch: 2456950.5000 = 2014/10/20 Mean Anomaly: 60.63162 +/- 0.244 Argument of Peri: 202.12579 +/- 0.301 Long of Asc Node: 91.64769 +/- 0.021 Inclination: 2.42249 +/- 0.000 Eccentricity: 0.04965630 +/- 0.0004 Semi-Major Axis: 43.94539487 +/- 0.0076 Time of Perihelion: 2439029.3810 +/- 72.0 Perihelion: 41.76322907 +/- 0.0185 Aphelion: 46.12756068 +/- 0.0188 Period (y) 291.3253 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 42.92104265 +/- 0.0023 Ecliptic Y -0.35801242 +/- 0.0001 Ecliptic Z -1.81461545 +/- 0.0001 Ecliptic XDOT 0.00013946 +/- 0.0000 Ecliptic YDOT 0.00265004 +/- 0.0000 Ecliptic ZDOT -0.00000912 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.96087644 +/- 0.0023 Geocenter to KBO 42.10257794 +/- 0.0023 # Hcoef: 7.26
The following table shows the complete astrometric record for 16RH82. 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 (16RH82) followed by the observatory code and reference code for the source of the astrometry.
2014 10 23.19297 23 59 41.445 -02 43 33.54 24.3r 16RH82 W84 C~55Zo 2016 09 10.33646 00 12 19.758 -01 21 55.41 23.4i 16RH82 W84 C~55Zo 2016 12 04.09291 00 07 34.692 -01 50 20.59 22.8i 16RH82 W84 C~55Zo 2016 12 20.04262 00 07 30.866 -01 49 44.60 23.7r 16RH82 W84 C~55Zo 2016 12 21.05060 00 07 31.389 -01 49 37.81 23.5i 16RH82 W84 C~55Zo 2017 09 27.24786 00 15 57.645 -00 58 22.20 23.2i 16RH82 W84 C~55Zo 2017 09 27.24923 00 15 57.630 -00 58 22.03 24.0r 16RH82 W84 C~55Zo 2017 10 29.14395 00 13 47.207 -01 11 50.20 23.1z 16RH82 W84 C~55Zo 2017 11 09.05875 00 13 11.598 -01 15 14.17 23.5r 16RH82 W84 C~55Zo 2018 09 14.30686 00 21 43.228 -00 20 46.96 23.6r 16RH82 W84 C~55Zo 2018 09 14.30823 00 21 43.223 -00 20 47.02 22.8i 16RH82 W84 C~55Zo
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 -0.00 0.00 -0.01
2 1.8840 12392.37 0.10 -46.24 0.04
3 2.1161 7781.59 0.04 99.28 0.06
4 2.1598 7743.32 -0.04 155.22 0.20
5 2.1625 7753.24 -0.07 158.32 -0.26
6 2.9297 15969.39 -0.08 -58.54 -0.12
7 2.9297 15969.25 -0.12 -58.29 0.13
8 3.0170 13842.22 -0.08 -16.09 0.03
9 3.0469 13268.74 0.22 10.66 -0.12
10 3.8935 21669.53 0.01 -67.52 0.03
11 3.8935 21669.43 0.02 -67.54 0.01
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.
16RH82 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.317 44.340 44.294 ecceobj 0.055 0.055 0.054 incobj 2.423 2.423 2.423 qmin 41.202 41.232 41.185 qmax 47.265 47.273 47.228 amean 44.122 44.145 44.101 amin 43.779 43.802 43.757 amax 44.486 44.501 44.471 emean 0.047 0.047 0.047 emin 0.031 0.031 0.031 emax 0.062 0.063 0.063 imean 0.766 0.763 0.770 imin 0.020 0.028 0.020 imax 1.253 1.250 1.255 excite_mean 0.050 0.050 0.049 fracstop 1.000 1.000 1.000 cjmean 3.100 3.100 3.100 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 183.1 183.4 182.8 kozaiamp 179.9 180.0 180.0