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: 16SJ105 # Created Sun Dec 22 02:10:53 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 10 observations of 10 # Arc: 5.22y # First observation: 2013/09/10 # Last observation: 2018/12/01 # Chi-squared of fit: 4.00 DOF: 14 RMS: 0.11 # Min/Max residuals: -0.18 0.21 # Exact a, adot, b, bdot, g, gdot: 1.472948E-05 2.405262E-02 -3.549532E-06 -6.435858E-03 2.560803E-02 -3.787673E-04 # Covariance matrix: 1.1199E-12 -6.9484E-13 -1.4264E-13 1.5379E-13 -3.5226E-13 -4.2659E-12 -6.9484E-13 7.5400E-13 1.8726E-13 -1.9385E-13 6.5431E-13 5.4318E-12 -1.4264E-13 1.8726E-13 7.9119E-13 -2.4749E-13 1.2081E-13 1.6049E-12 1.5379E-13 -1.9385E-13 -2.4749E-13 1.2605E-13 -6.9840E-14 -1.7980E-12 -3.5226E-13 6.5431E-13 1.2081E-13 -6.9840E-14 1.7394E-12 2.3482E-12 -4.2659E-12 5.4318E-12 1.6049E-12 -1.7980E-12 2.3482E-12 4.9413E-11 # lat0 lon0 xBary yBary zBary JD0 -15.399384 35.923211 0.753825 -0.177502 -0.644834 2456545.877878 # Heliocentric elements and errors Epoch: 2456546.5000 = 2013/09/11 Mean Anomaly: 220.16487 +/- 0.207 Argument of Peri: 9.72671 +/- 0.201 Long of Asc Node: 171.10841 +/- 0.001 Inclination: 21.38970 +/- 0.000 Eccentricity: 0.05944372 +/- 0.0002 Semi-Major Axis: 37.92859486 +/- 0.0062 Time of Perihelion: 2489687.2516 +/- 50.7 Perihelion: 35.67397815 +/- 0.0098 Aphelion: 40.18321157 +/- 0.0103 Period (y) 233.5922 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.47095443 +/- 0.0016 Ecliptic Y 21.87312697 +/- 0.0011 Ecliptic Z -10.36979034 +/- 0.0005 Ecliptic XDOT -0.00169449 +/- 0.0000 Ecliptic YDOT 0.00195119 +/- 0.0000 Ecliptic ZDOT -0.00065249 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.70376497 +/- 0.0014 Geocenter to KBO 39.05029539 +/- 0.0020 # Hcoef: 7.96
The following table shows the complete astrometric record for 16SJ105. 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 (16SJ105) followed by the observatory code and reference code for the source of the astrometry.
2013 09 10.37710 02 34 38.410 -01 04 04.18 24.7g 16SJ105 W84 C~52Zv 2014 09 24.31584 02 39 39.993 -01 06 35.24 23.8r 16SJ105 W84 C~52Zv 2016 09 23.29861 02 51 08.812 -00 54 49.84 23.4i 16SJ105 W84 C~52Zv 2016 09 25.27240 02 51 02.275 -00 56 01.25 24.7g 16SJ105 W84 C~52Zv 2016 10 27.25910 02 48 46.121 -01 13 58.71 23.7i 16SJ105 W84 C~52Zv 2016 11 10.26905 02 47 36.997 -01 20 07.68 23.6i 16SJ105 W84 C~52Zv 2016 11 28.14501 02 46 11.628 -01 25 29.21 24.1r 16SJ105 W84 C~52Zv 2017 10 29.30760 02 54 22.985 -01 09 04.38 23.7r 16SJ105 W84 C~52Zv 2018 11 29.20945 02 57 39.031 -01 14 04.28 23.7r 16SJ105 W84 C~52Zv 2018 12 01.07616 02 57 30.447 -01 14 26.24 24.3g 16SJ105 W84 C~52Zv
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 0.05 0.00 -0.07
2 1.0375 0.00 -0.10 0.00 0.14
3 3.0361 0.00 -0.07 0.00 0.00
4 3.0415 0.00 -0.01 0.00 -0.11
5 3.1290 0.00 0.21 0.00 0.16
6 3.1674 0.00 -0.06 0.00 -0.08
7 3.2163 0.00 -0.03 0.00 -0.02
8 4.1340 0.00 0.11 0.00 0.00
9 5.2179 0.00 0.06 0.00 -0.18
10 5.2230 0.00 -0.11 0.00 0.20
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.
16SJ105 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 38.076 38.076 38.076 ecceobj 0.054 0.054 0.054 incobj 21.333 21.333 21.333 qmin 34.269 34.252 34.276 qmax 41.624 41.576 41.650 amean 37.839 37.842 37.841 amin 37.546 37.542 37.549 amax 38.144 38.142 38.147 emean 0.070 0.070 0.070 emin 0.049 0.049 0.049 emax 0.092 0.091 0.093 imean 21.435 21.435 21.436 imin 20.266 20.266 20.267 imax 23.051 23.057 23.052 excite_mean 0.372 0.372 0.372 fracstop 1.000 1.000 1.000 cjmean 2.879 2.879 2.879 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 176.0 175.8 176.0 kozaiamp 180.0 180.0 180.0