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: 16QZ134 # Created Fri Nov 22 02:10:43 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 12 observations of 12 # Arc: 5.19y # First observation: 2016/08/26 # Last observation: 2021/11/05 # Chi-squared of fit: 11.84 DOF: 18 RMS: 0.18 # Min/Max residuals: -0.41 0.62 # Exact a, adot, b, bdot, g, gdot: 1.396882E-05 2.246061E-02 6.180129E-06 8.431944E-03 2.449787E-02 -2.712015E-03 # Covariance matrix: 6.1922E-13 -4.5644E-13 1.3989E-13 -2.0020E-13 1.4902E-13 -4.0606E-12 -4.5644E-13 7.2621E-13 -2.1121E-13 3.0306E-13 4.0032E-13 6.1523E-12 1.3989E-13 -2.1121E-13 3.7056E-13 -1.7646E-13 -4.1946E-14 -2.0272E-12 -2.0020E-13 3.0306E-13 -1.7646E-13 1.7780E-13 6.2002E-14 2.9055E-12 1.4902E-13 4.0032E-13 -4.1946E-14 6.2002E-14 1.4724E-12 1.2702E-12 -4.0606E-12 6.1523E-12 -2.0272E-12 2.9055E-12 1.2702E-12 5.8961E-11 # lat0 lon0 xBary yBary zBary JD0 -3.000116 -0.153164 0.450777 -0.047288 -0.905327 2457626.705879 # Heliocentric elements and errors Epoch: 2457626.5000 = 2016/08/26 Mean Anomaly: 287.02404 +/- 0.045 Argument of Peri: 78.73654 +/- 0.070 Long of Asc Node: 6.96754 +/- 0.000 Inclination: 20.82950 +/- 0.000 Eccentricity: 0.12359094 +/- 0.0003 Semi-Major Axis: 42.64397850 +/- 0.0079 Time of Perihelion: 2478245.2505 +/- 25.9 Perihelion: 37.37356892 +/- 0.0152 Aphelion: 47.91438809 +/- 0.0162 Period (y) 278.4805 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.66550490 +/- 0.0020 Ecliptic Y -0.56466522 +/- 0.0000 Ecliptic Z -2.13617664 +/- 0.0001 Ecliptic XDOT -0.00024510 +/- 0.0000 Ecliptic YDOT 0.00250388 +/- 0.0000 Ecliptic ZDOT 0.00095689 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.72412755 +/- 0.0020 Geocenter to KBO 40.81998288 +/- 0.0020 # Hcoef: 7.42
The following table shows the complete astrometric record for 16QZ134. 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 (16QZ134) followed by the observatory code and reference code for the source of the astrometry.
2016 08 26.20509 00 04 12.919 -02 48 47.76 24.4r 16QZ134 W84 C~55Zc 2016 09 11.23049 00 03 03.583 -02 55 19.40 23.3i 16QZ134 W84 C~55Zc 2017 08 18.31188 00 08 41.008 -01 48 25.22 24.6g 16QZ134 W84 C~55Zc 2017 09 18.22777 00 06 30.185 -02 00 36.94 23.8r 16QZ134 W84 C~55Zc 2017 09 27.16491 00 05 48.432 -02 04 21.56 23.1z 16QZ134 W84 C~55Zc 2017 10 19.15880 00 04 09.494 -02 12 45.21 21.6i 16QZ134 W84 C~55Zc 2017 11 09.06430 00 02 52.961 -02 18 24.46 23.6r 16QZ134 W84 C~55Zc 2018 09 14.31375 00 10 48.397 -01 00 55.20 23.7r 16QZ134 W84 C~55Zc 2018 09 14.31513 00 10 48.373 -01 00 55.21 23.0i 16QZ134 W84 C~55Zc 2021 11 05.097860 00 19 04.458 +01 35 02.69 23.7G 16QZ134 G37 C~5Bct 2021 11 05.147550 00 19 04.283 +01 35 01.90 16QZ134 G37 C~5Bct 2021 11 05.196200 00 19 04.106 +01 35 01.02 16QZ134 G37 C~5Bct
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 0.16 0.00 -0.10
2 0.0439 0.00 -0.07 0.00 -0.02
3 0.9777 0.00 -0.01 0.00 0.01
4 1.0623 0.00 -0.07 0.00 -0.10
5 1.0868 0.00 0.17 0.00 0.06
6 1.1470 0.00 -0.13 0.00 0.62
7 1.2043 0.00 0.05 0.00 -0.41
8 2.0509 0.00 0.08 0.00 -0.02
9 2.0510 0.00 -0.18 0.00 0.01
10 5.1934 0.00 -0.08 0.00 -0.05
11 5.1935 0.00 0.03 0.00 0.02
12 5.1937 0.00 0.06 0.00 -0.01
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.
16QZ134 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.049 43.049 43.049 ecceobj 0.126 0.126 0.126 incobj 20.722 20.722 20.722 qmin 36.896 36.912 36.875 qmax 49.138 49.207 49.190 amean 42.888 42.889 42.890 amin 42.527 42.542 42.545 amax 43.269 43.271 43.276 emean 0.122 0.121 0.121 emin 0.107 0.107 0.107 emax 0.137 0.137 0.137 imean 20.864 20.882 20.874 imin 20.370 20.381 20.366 imax 21.347 21.337 21.327 excite_mean 0.376 0.376 0.376 fracstop 1.000 1.000 1.000 cjmean 2.916 2.916 2.916 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 182.1 179.7 179.7 kozaiamp 180.0 180.0 180.0