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: 16QB135
# Created Sun Dec 22 02:10:45 2024
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 3.18y
# First observation: 2016/08/26
# Last observation: 2019/11/01
Preliminary a, adot, b, bdot, g, gdot:
0.000042 0.027143 0.000000 -0.007147 0.028438 0.000000
# Chi-squared of fit: 2.83 DOF: 22 RMS: 0.08
# Min/Max residuals: -0.13 0.18
# Exact a, adot, b, bdot, g, gdot:
1.575646E-05 2.699607E-02 -3.980797E-06 -7.122047E-03 2.818656E-02 -1.048162E-03
# Covariance matrix:
6.7149E-13 1.9230E-13 -6.9290E-15 5.8654E-15 1.1909E-12 -1.3648E-13
1.9230E-13 2.1236E-12 1.8943E-13 -4.7090E-13 3.2172E-12 1.9920E-11
-6.9290E-15 1.8943E-13 3.4611E-13 -1.8281E-13 2.1295E-13 2.2465E-12
5.8654E-15 -4.7090E-13 -1.8281E-13 2.0588E-13 -5.5559E-13 -5.4596E-12
1.1909E-12 3.2172E-12 2.1295E-13 -5.5559E-13 6.6374E-12 2.3760E-11
-1.3648E-13 1.9920E-11 2.2465E-12 -5.4596E-12 2.3760E-11 2.2972E-10
# lat0 lon0 xBary yBary zBary JD0
2.751978 2.838820 0.497419 0.042499 -0.880806 2457626.710029
# Heliocentric elements and errors
Epoch: 2457620.5000 = 2016/08/20
Mean Anomaly: 209.43364 +/- 0.257
Argument of Peri: 325.71607 +/- 0.244
Long of Asc Node: 192.10972 +/- 0.000
Inclination: 15.02922 +/- 0.001
Eccentricity: 0.11141291 +/- 0.0002
Semi-Major Axis: 33.06466449 +/- 0.0086
Time of Perihelion: 2486665.4113 +/- 48.2
Perihelion: 29.38083391 +/- 0.0103
Aphelion: 36.74849506 +/- 0.0118
Period (y) 190.1316 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 36.29520857 +/- 0.0032
Ecliptic Y 1.29942753 +/- 0.0001
Ecliptic Z 1.70324690 +/- 0.0002
Ecliptic XDOT -0.00019672 +/- 0.0000
Ecliptic YDOT 0.00260865 +/- 0.0000
Ecliptic ZDOT -0.00069591 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.35837905 +/- 0.0032
Geocenter to KBO 35.47790223 +/- 0.0032
# Hcoef: 8.29
The following table shows the complete astrometric record for 16QB135. 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 (16QB135) followed by the observatory code and reference code for the source of the astrometry.
2016 08 26.20924 00 06 02.277 +03 39 13.86 23.2r 16QB135 W84 C~55Zd 2016 09 11.23873 00 04 47.403 +03 30 26.77 23.4i 16QB135 W84 C~55Zd 2016 09 22.12861 00 03 52.642 +03 23 50.43 23.7r 16QB135 W84 C~55Zd 2017 09 27.16767 00 09 49.365 +03 35 16.21 23.0z 16QB135 W84 C~55Zd 2017 09 27.17592 00 09 49.328 +03 35 15.88 23.7r 16QB135 W84 C~55Zd 2017 09 27.17729 00 09 49.322 +03 35 15.86 23.5i 16QB135 W84 C~55Zd 2017 10 22.17884 00 07 47.734 +03 19 50.17 23.3r 16QB135 W84 C~55Zd 2018 10 18.15718 00 14 28.845 +03 36 42.14 23.0z 16QB135 W84 C~55Zd 2018 10 28.17383 00 13 43.975 +03 30 51.27 22.9i 16QB135 W84 C~55Zd 2018 11 08.13461 00 13 01.404 +03 25 04.15 24.1r 16QB135 W84 C~55Zd 2019 11 01.24785 00 19 50.55 +03 42 57.5 24.8g 16QB135 T09 C~7bNt 2019 11 01.29798 00 19 50.34 +03 42 56.0 25.0g 16QB135 T09 C~7bNt 2019 11 01.40078 00 19 49.91 +03 42 52.8 25.0g 16QB135 T09 C~7bNt 2019 11 01.49076 00 19 49.54 +03 42 49.7 25.7g 16QB135 T09 C~7bNt
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 -0.13 0.00 -0.00
2 0.0439 -1238.12 0.18 -37.08 -0.01
3 0.0737 -2148.13 -0.07 -73.83 0.08
4 1.0868 3025.01 -0.03 -1569.91 -0.04
5 1.0868 3024.37 0.04 -1569.99 -0.09
6 1.0868 3024.28 0.07 -1569.98 -0.07
7 1.1553 985.58 -0.02 -1695.88 -0.02
8 2.1436 6902.84 0.00 -3151.41 0.10
9 2.1710 6146.22 -0.03 -3207.39 -0.07
10 2.2010 5422.81 -0.01 -3273.39 0.18
11 3.1815 11485.57 -0.09 -4714.17 -0.12
12 3.1816 11482.08 -0.03 -4714.30 -0.00
13 3.1819 11474.87 0.06 -4714.70 0.12
14 3.1822 11468.54 0.06 -4715.36 -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.
16QB135 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 33.307 33.330 33.284 ecceobj 0.104 0.104 0.104 incobj 14.949 14.950 14.948 qmin 28.097 28.956 29.333 qmax 36.918 36.932 37.153 amean 32.119 32.725 33.073 amin 30.841 32.093 32.837 amax 33.307 33.330 33.405 emean 0.096 0.100 0.105 emin 0.083 0.089 0.097 emax 0.111 0.111 0.113 imean 14.996 14.966 14.909 imin 14.834 14.882 14.787 imax 15.180 15.062 14.966 excite_mean 0.276 0.277 0.278 fracstop 0.002 0.001 0.001 cjmean 2.930 2.931 2.931 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 307.6 319.2 323.5 kozaiamp 19.2 7.3 3.0