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: 16RX82 # Created Wed Dec 25 02:10:42 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 17 observations of 17 # Arc: 6.14y # First observation: 2016/09/08 # Last observation: 2022/10/31 # Chi-squared of fit: 5.70 DOF: 28 RMS: 0.10 # Min/Max residuals: -0.20 0.30 # Exact a, adot, b, bdot, g, gdot: 1.678754E-05 2.817929E-02 2.797052E-06 5.251869E-03 2.636048E-02 -2.617205E-03 # Covariance matrix: 3.2537E-13 3.8114E-14 9.0497E-16 2.7839E-16 5.6799E-13 6.0875E-14 3.8114E-14 5.8545E-13 -4.2746E-14 1.0108E-13 9.0953E-13 3.0102E-12 9.0497E-16 -4.2746E-14 1.4663E-13 -3.6783E-14 -5.2410E-14 -2.3519E-13 2.7839E-16 1.0108E-13 -3.6783E-14 3.2938E-14 1.3034E-13 5.5209E-13 5.6799E-13 9.0953E-13 -5.2410E-14 1.3034E-13 2.6698E-12 4.0207E-12 6.0875E-14 3.0102E-12 -2.3519E-13 5.5209E-13 4.0207E-12 1.6354E-11 # lat0 lon0 xBary yBary zBary JD0 -8.494453 6.005858 0.343629 -0.140127 -0.939518 2457639.855685 # Heliocentric elements and errors Epoch: 2457640.5000 = 2016/09/09 Mean Anomaly: 335.55499 +/- 0.026 Argument of Peri: 357.64802 +/- 0.038 Long of Asc Node: 43.26451 +/- 0.001 Inclination: 13.37722 +/- 0.000 Eccentricity: 0.19473274 +/- 0.0002 Semi-Major Axis: 46.75552696 +/- 0.0135 Time of Perihelion: 2465569.8124 +/- 47.8 Perihelion: 37.65069515 +/- 0.0146 Aphelion: 55.86035876 +/- 0.0188 Period (y) 319.7110 +/- 0.14 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.29046601 +/- 0.0023 Ecliptic Y 3.68078825 +/- 0.0002 Ecliptic Z -5.60352714 +/- 0.0003 Ecliptic XDOT -0.00049180 +/- 0.0000 Ecliptic YDOT 0.00288407 +/- 0.0000 Ecliptic ZDOT 0.00057961 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.87303063 +/- 0.0023 Geocenter to KBO 37.93566919 +/- 0.0024 # Hcoef: 7.47
The following table shows the complete astrometric record for 16RX82. 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 (16RX82) followed by the observatory code and reference code for the source of the astrometry.
2016 09 08.354896 00 35 31.53 -05 24 52.5 23.4r 16RX82 W84 C~55Zq 2016 09 09.268981 00 35 27.52 -05 25 20.0 22.9i 16RX82 W84 C~55Zq 2016 09 30.191817 00 33 49.26 -05 35 30.8 23.1r 16RX82 W84 C~55Zq 2016 10 01.174560 00 33 44.48 -05 35 57.9 22.8i 16RX82 W84 C~55Zq 2016 10 01.17646 00 33 44.468 -05 35 57.96 23.0g 16RX82 W84 C~55Zq 2016 10 02.185463 00 33 39.57 -05 36 25.2 23.3r 16RX82 W84 C~55Zq 2016 10 02.186817 00 33 39.55 -05 36 25.3 23.1i 16RX82 W84 C~55Zq 2017 09 24.29972 00 39 47.411 -04 37 23.07 23.3i 16RX82 W84 C~55Zq 2017 09 24.30111 00 39 47.423 -04 37 23.14 23.5r 16RX82 W84 C~55Zq 2017 09 26.30580 00 39 37.765 -04 38 20.36 22.8i 16RX82 W84 C~55Zq 2017 10 17.24068 00 37 56.550 -04 47 25.32 23.4r 16RX82 W84 C~55Zq 2018 10 28.20932 00 42 36.415 -03 55 34.74 23.1i 16RX82 W84 C~55Zq 2018 11 27.08747 00 40 49.596 -04 00 45.69 23.6g 16RX82 W84 C~55Zq 2022 10 31.03137 01 04 33.65 -00 10 14.8 23.4r 16RX82 W84 C~5zAB 2022 10 31.08494 01 04 33.39 -00 10 15.8 23.5r 16RX82 W84 C~5zAB 2022 10 31.13799 01 04 33.15 -00 10 17.0 23.4r 16RX82 W84 C~5zAB 2022 10 31.20463 01 04 32.84 -00 10 18.4 23.4r 16RX82 W84 C~5zAB
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 -0.01 0.00 0.08
2 0.0025 0.00 -0.08 0.00 -0.04
3 0.0598 0.00 -0.04 0.00 0.04
4 0.0625 0.00 -0.03 0.00 -0.08
5 0.0625 0.00 -0.07 0.00 -0.09
6 0.0652 0.00 0.15 0.00 0.12
7 0.0652 0.00 -0.05 0.00 0.06
8 1.0430 0.00 -0.11 0.00 -0.09
9 1.0430 0.00 0.17 0.00 -0.12
10 1.0485 0.00 0.03 0.00 0.30
11 1.1058 0.00 0.11 0.00 0.09
12 2.1351 0.00 0.07 0.00 -0.12
13 2.2169 0.00 -0.01 0.00 -0.20
14 6.1429 0.00 0.03 0.00 0.02
15 6.1430 0.00 -0.12 0.00 0.11
16 6.1431 0.00 -0.00 0.00 -0.01
17 6.1433 0.00 0.01 0.00 -0.06
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.
16RX82 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 47.347 47.347 47.347 ecceobj 0.204 0.204 0.204 incobj 13.337 13.337 13.337 qmin 36.678 36.688 36.681 qmax 57.874 57.877 57.798 amean 46.995 46.987 46.993 amin 46.576 46.569 46.566 amax 47.531 47.517 47.514 emean 0.202 0.202 0.202 emin 0.186 0.187 0.186 emax 0.218 0.219 0.218 imean 12.128 12.127 12.125 imin 11.536 11.544 11.538 imax 12.789 12.789 12.789 excite_mean 0.291 0.291 0.291 fracstop 1.000 1.000 1.000 cjmean 3.033 3.033 3.033 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 171.5 171.5 171.4 kozaiamp 180.0 180.0 180.0