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: 16RR82 # Created Wed Dec 25 02:10:41 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 12 observations of 12 # Arc: 5.15y # First observation: 2016/09/11 # Last observation: 2021/11/05 # Chi-squared of fit: 3.30 DOF: 18 RMS: 0.09 # Min/Max residuals: -0.17 0.21 # Exact a, adot, b, bdot, g, gdot: 1.496745E-05 2.035189E-02 -2.344788E-07 6.283617E-04 2.236758E-02 -1.293761E-04 # Covariance matrix: 4.5440E-13 -2.6826E-13 4.1413E-15 -9.6974E-15 2.9283E-13 -2.6730E-12 -2.6826E-13 6.1679E-13 -1.1158E-14 2.1469E-14 2.9278E-13 6.1622E-12 4.1413E-15 -1.1158E-14 2.3772E-13 -6.0112E-14 -5.1095E-15 -1.1796E-13 -9.6974E-15 2.1469E-14 -6.0112E-14 3.1875E-14 5.0160E-15 2.3276E-13 2.9283E-13 2.9278E-13 -5.1095E-15 5.0160E-15 1.2518E-12 1.7472E-12 -2.6730E-12 6.1622E-12 -1.1796E-13 2.3276E-13 1.7472E-12 6.6437E-11 # lat0 lon0 xBary yBary zBary JD0 -1.525041 -0.805009 0.180344 -0.026256 -0.993000 2457642.731279 # Heliocentric elements and errors Epoch: 2457642.5000 = 2016/09/11 Mean Anomaly: 192.36196 +/- 0.448 Argument of Peri: 128.55482 +/- 0.447 Long of Asc Node: 39.11554 +/- 0.008 Inclination: 2.31326 +/- 0.000 Eccentricity: 0.04700975 +/- 0.0002 Semi-Major Axis: 43.68711112 +/- 0.0076 Time of Perihelion: 2506755.7306 +/- 132.2 Perihelion: 41.63339098 +/- 0.0105 Aphelion: 45.74083126 +/- 0.0110 Period (y) 288.7608 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 45.67440883 +/- 0.0022 Ecliptic Y -0.82469046 +/- 0.0001 Ecliptic Z -1.18987061 +/- 0.0001 Ecliptic XDOT 0.00002291 +/- 0.0000 Ecliptic YDOT 0.00248415 +/- 0.0000 Ecliptic ZDOT 0.00007727 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.69735322 +/- 0.0022 Geocenter to KBO 44.70759735 +/- 0.0022 # Hcoef: 7.04
The following table shows the complete astrometric record for 16RR82. 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 (16RR82) followed by the observatory code and reference code for the source of the astrometry.
2016 09 11.23049 23 59 28.368 -01 43 09.77 23.2i 16RR82 W84 C~55Zp 2016 09 22.10801 23 58 43.631 -01 47 58.47 23.7r 16RR82 W84 C~55Zp 2016 09 26.16381 23 58 26.820 -01 49 45.72 24.2r 16RR82 W84 C~55Zp 2016 10 06.05453 23 57 46.397 -01 54 00.85 22.9z 16RR82 W84 C~55Zp 2017 10 11.20010 00 01 39.607 -01 26 17.56 23.5i 16RR82 W84 C~55Zp 2017 11 17.03171 23 59 44.018 -01 37 45.58 23.7r 16RR82 W84 C~55Zp 2017 11 17.03309 23 59 44.012 -01 37 45.71 23.5i 16RR82 W84 C~55Zp 2018 09 14.31375 00 07 43.644 -00 44 41.66 23.5r 16RR82 W84 C~55Zp 2018 09 14.31513 00 07 43.655 -00 44 41.49 22.6i 16RR82 W84 C~55Zp 2021 11 05.093500 00 17 02.909 +00 24 02.47 23.6G 16RR82 G37 C~5Bd5 2021 11 05.143230 00 17 02.743 +00 24 01.63 16RR82 G37 C~5Bd5 2021 11 05.191830 00 17 02.594 +00 24 00.76 16RR82 G37 C~5Bd5
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 -0.17 0.00 0.08
2 0.0298 0.00 0.03 0.00 0.04
3 0.0409 0.00 0.13 0.00 0.01
4 0.0680 0.00 0.09 0.00 -0.16
5 1.0814 0.00 -0.02 0.00 -0.10
6 1.1822 0.00 0.03 0.00 0.06
7 1.1822 0.00 -0.02 0.00 -0.05
8 2.0071 0.00 -0.14 0.00 0.00
9 2.0071 0.00 0.11 0.00 0.21
10 5.1495 0.00 0.05 0.00 -0.09
11 5.1497 0.00 -0.07 0.00 -0.01
12 5.1498 0.00 0.01 0.00 0.02
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.
16RR82 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.096 44.096 44.096 ecceobj 0.038 0.038 0.038 incobj 2.306 2.306 2.306 qmin 41.064 41.064 41.064 qmax 46.968 46.969 46.968 amean 43.924 43.924 43.924 amin 43.585 43.585 43.585 amax 44.286 44.286 44.286 emean 0.045 0.045 0.045 emin 0.028 0.028 0.028 emax 0.061 0.061 0.061 imean 1.859 1.859 1.859 imin 1.068 1.068 1.068 imax 2.492 2.492 2.492 excite_mean 0.056 0.056 0.056 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 167.1 167.1 167.1 kozaiamp 179.9 179.9 179.9