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: 16SD106
# Created Sat Apr 27 01:18:10 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 18 observations of 18
# Arc: 5.02y
# First observation: 2013/09/08
# Last observation: 2018/09/17
# Chi-squared of fit: 9.99 DOF: 30 RMS: 0.13
# Min/Max residuals: -0.34 0.33
# Exact a, adot, b, bdot, g, gdot:
1.895225E-05 2.594068E-02 -9.338677E-07 -1.278395E-03 2.171033E-02 -7.997740E-03
# Covariance matrix:
5.0884E-13 -1.7374E-13 -1.6632E-15 4.4317E-15 1.7234E-13 -6.2760E-13
-1.7374E-13 3.5216E-13 1.1108E-14 -1.5540E-14 4.8232E-13 2.4449E-12
-1.6632E-15 1.1108E-14 4.1217E-13 -1.0454E-13 1.9364E-14 8.4170E-14
4.4317E-15 -1.5540E-14 -1.0454E-13 3.3592E-14 -1.9948E-14 -1.2016E-13
1.7234E-13 4.8232E-13 1.9364E-14 -1.9948E-14 1.6705E-12 3.3748E-12
-6.2760E-13 2.4449E-12 8.4170E-14 -1.2016E-13 3.3748E-12 1.8826E-11
# lat0 lon0 xBary yBary zBary JD0
3.965782 -14.258469 0.006935 0.069824 -1.005988 2456543.659468
# Heliocentric elements and errors
Epoch: 2456544.5000 = 2013/09/09
Mean Anomaly: 358.79801 +/- 0.006
Argument of Peri: 163.03378 +/- 0.015
Long of Asc Node: 219.49436 +/- 0.004
Inclination: 4.80796 +/- 0.000
Eccentricity: 0.87958393 +/- 0.0004
Semi-Major Axis: 354.24725128 +/- 1.0826
Time of Perihelion: 2464675.7209 +/- 11126.1
Perihelion: 42.65706234 +/- 0.1843
Aphelion: 665.83744022 +/- 2.0389
Period (y) 6667.5754 +/- 30.56
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 45.51077247 +/- 0.0026
Ecliptic Y -11.56927757 +/- 0.0007
Ecliptic Z 3.18556486 +/- 0.0002
Ecliptic XDOT -0.00016483 +/- 0.0000
Ecliptic YDOT 0.00341448 +/- 0.0000
Ecliptic ZDOT -0.00023045 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.06646092 +/- 0.0026
Geocenter to KBO 46.06133070 +/- 0.0027
# Hcoef: 6.58
The following table shows the complete astrometric record for 16SD106. 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 (16SD106) followed by the observatory code and reference code for the source of the astrometry.
2013 09 08.15869 23 01 21.482 -01 57 52.73 23.8g 16SD106 W84 C~55a2 2013 09 10.28438 23 01 13.437 -01 58 45.46 24.3g 16SD106 W84 C~55a2 2013 10 13.04541 22 59 20.578 -02 11 57.06 23.0z 16SD106 W84 C~55a2 2016 09 26.128877 23 17 22.01 -00 32 23.3 23.1r 16SD106 W84 C~55a2 2016 09 26.130266 23 17 21.99 -00 32 23.1 22.7i 16SD106 W84 C~55a2 2016 09 26.131632 23 17 21.99 -00 32 23.2 23.4g 16SD106 W84 C~55a2 2016 09 30.121053 23 17 07.48 -00 34 05.8 22.7z 16SD106 W84 C~55a2 2016 10 05.114965 23 16 49.94 -00 36 11.7 23.1i 16SD106 W84 C~55a2 2016 10 05.116343 23 16 49.92 -00 36 12.0 23.2r 16SD106 W84 C~55a2 2016 10 05.117720 23 16 49.92 -00 36 12.0 23.2g 16SD106 W84 C~55a2 2016 11 05.028009 23 15 26.60 -00 47 16.1 22.5z 16SD106 W84 C~55a2 2017 09 27.14683 23 23 11.981 -00 00 42.38 22.5z 16SD106 W84 C~55a2 2017 11 08.06415 23 21 11.048 -00 16 23.57 24.1g 16SD106 W84 C~55a2 2017 11 08.06551 23 21 11.042 -00 16 23.58 23.5r 16SD106 W84 C~55a2 2017 11 08.06689 23 21 11.036 -00 16 23.50 23.1i 16SD106 W84 C~55a2 2018 09 11.25354 23 30 12.264 +00 38 49.51 22.8i 16SD106 W84 C~55a2 2018 09 17.27443 23 29 48.904 +00 36 13.65 23.3r 16SD106 W84 C~55a2 2018 09 17.27580 23 29 48.903 +00 36 13.56 23.4g 16SD106 W84 C~55a2
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 -0.00
2 0.0058 0.00 0.06 0.00 -0.34
3 0.0955 0.00 0.00 0.00 0.25
4 3.0499 0.00 0.18 0.00 -0.13
5 3.0499 0.00 -0.04 0.00 0.10
6 3.0499 0.00 0.04 0.00 0.04
7 3.0608 0.00 0.08 0.00 -0.14
8 3.0745 0.00 0.07 0.00 0.19
9 3.0745 0.00 -0.16 0.00 -0.07
10 3.0745 0.00 -0.08 0.00 -0.04
11 3.1591 0.00 -0.27 0.00 0.33
12 4.0520 0.00 0.16 0.00 0.13
13 4.1668 0.00 0.08 0.00 -0.07
14 4.1668 0.00 0.02 0.00 -0.06
15 4.1668 0.00 -0.03 0.00 0.05
16 5.0078 0.00 0.01 0.00 -0.09
17 5.0243 0.00 -0.05 0.00 -0.02
18 5.0243 0.00 0.02 0.00 -0.08
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.
16SD106 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 375.956 375.934 375.979 ecceobj 0.886 0.886 0.886 incobj 4.806 4.806 4.806 qmin 39.231 39.334 39.189 qmax 745.241 737.683 738.931 amean 356.246 349.503 352.686 amin 334.539 324.343 332.745 amax 393.976 390.195 390.822 emean 0.880 0.878 0.879 emin 0.868 0.866 0.867 emax 0.892 0.891 0.891 imean 5.674 5.695 5.686 imin 5.424 5.435 5.438 imax 5.928 5.958 5.970 excite_mean 0.885 0.883 0.884 fracstop 1.000 1.000 1.000 cjmean 3.337 3.336 3.337 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 173.8 175.3 174.3 kozaiamp 10.5 11.3 11.9