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: 16RN82 # Created Tue Jan 21 02:10:58 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 12 observations of 12 # Arc: 8.15y # First observation: 2016/09/06 # Last observation: 2024/11/01 # Chi-squared of fit: 4.99 DOF: 18 RMS: 0.11 # Min/Max residuals: -0.21 0.21 # Exact a, adot, b, bdot, g, gdot: 2.105180E-05 4.247505E-02 -3.260094E-06 -7.397428E-03 3.073414E-02 -5.143170E-03 # Covariance matrix: 4.0985E-13 -8.4757E-14 -2.5862E-14 1.1659E-14 3.0507E-13 -2.0631E-13 -8.4757E-14 3.0558E-13 1.9001E-14 -5.2095E-14 2.9022E-13 7.7327E-13 -2.5862E-14 1.9001E-14 2.1614E-13 -3.5342E-14 -2.3942E-14 5.7836E-14 1.1659E-14 -5.2095E-14 -3.5342E-14 1.9826E-14 -4.6900E-14 -1.3738E-13 3.0507E-13 2.9022E-13 -2.3942E-14 -4.6900E-14 9.6415E-13 6.3300E-13 -2.0631E-13 7.7327E-13 5.7836E-14 -1.3738E-13 6.3300E-13 2.0511E-12 # lat0 lon0 xBary yBary zBary JD0 -23.077214 0.641843 0.285937 -0.379739 -0.891751 2457637.880309 # Heliocentric elements and errors Epoch: 2457638.5000 = 2016/09/07 Mean Anomaly: 357.56443 +/- 0.002 Argument of Peri: 265.25996 +/- 0.005 Long of Asc Node: 114.97113 +/- 0.000 Inclination: 24.46099 +/- 0.000 Eccentricity: 0.69035181 +/- 0.0001 Semi-Major Axis: 105.76809945 +/- 0.0518 Time of Perihelion: 2460326.4964 +/- 290.1 Perihelion: 32.75090004 +/- 0.0220 Aphelion: 178.78529886 +/- 0.0889 Period (y) 1087.7780 +/- 0.80 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.90021881 +/- 0.0010 Ecliptic Y 0.05779438 +/- 0.0000 Ecliptic Z -12.75373581 +/- 0.0004 Ecliptic XDOT -0.00072049 +/- 0.0000 Ecliptic YDOT 0.00376897 +/- 0.0000 Ecliptic ZDOT -0.00042669 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.42889250 +/- 0.0009 Geocenter to KBO 32.53721901 +/- 0.0010 # Hcoef: 7.81
The following table shows the complete astrometric record for 16RN82. 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 (16RN82) followed by the observatory code and reference code for the source of the astrometry.
2016 09 06.37952 00 40 45.868 -20 49 32.75 23.4r 16RN82 W84 C~55Zp 2016 09 07.25254 00 40 41.742 -20 50 14.65 22.4i 16RN82 W84 C~55Zp 2016 09 08.15969 00 40 37.424 -20 50 58.31 22.8z 16RN82 W84 C~55Zp 2016 10 29.25182 00 36 09.136 -21 16 34.34 22.7r 16RN82 W84 C~55Zp 2016 11 08.20862 00 35 25.143 -21 16 55.05 22.3z 16RN82 W84 C~55Zp 2018 10 01.32350 00 59 05.720 -19 44 10.54 22.8z 16RN82 W84 C~55Zp 2018 10 01.32487 00 59 05.718 -19 44 10.56 22.6i 16RN82 W84 C~55Zp 2018 11 29.07691 00 54 29.497 -19 53 05.54 23.2r 16RN82 W84 C~55Zp 2018 11 29.07829 00 54 29.498 -19 53 05.46 24.2g 16RN82 W84 C~55Zp 2024 11 01.248140 01 57 00.154 -14 57 23.60 23.1G 16RN82 G37 C~8Sam 2024 11 01.295290 01 56 59.873 -14 57 24.15 16RN82 G37 C~8Sam 2024 11 01.340930 01 56 59.641 -14 57 25.20 16RN82 G37 C~8Sam
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 0.21 0.00 -0.03
2 0.0024 0.00 -0.01 0.00 0.15
3 0.0049 0.00 0.03 0.00 -0.17
4 0.1448 0.00 -0.19 0.00 0.05
5 0.1720 0.00 0.02 0.00 -0.02
6 2.0669 0.00 -0.13 0.00 -0.01
7 2.0669 0.00 -0.05 0.00 0.02
8 2.2278 0.00 0.05 0.00 -0.01
9 2.2278 0.00 0.13 0.00 0.04
10 8.1530 0.00 0.02 0.00 -0.11
11 8.1531 0.00 -0.21 0.00 0.17
12 8.1532 0.00 0.17 0.00 -0.07
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.
16RN82 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 109.692 109.690 109.694 ecceobj 0.701 0.701 0.701 incobj 24.462 24.462 24.462 qmin 31.840 31.633 31.835 qmax 189.393 190.151 192.465 amean 106.517 105.751 108.269 amin 102.652 99.173 105.501 amax 111.596 111.898 112.660 emean 0.684 0.684 0.690 emin 0.666 0.662 0.673 emax 0.704 0.704 0.709 imean 24.252 23.904 24.119 imin 22.734 22.560 22.724 imax 25.699 25.490 25.863 excite_mean 0.798 0.795 0.802 fracstop 1.000 1.000 1.000 cjmean 2.784 2.783 2.783 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 180.8 194.7 188.3 kozaiamp 180.0 180.0 180.0