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: 16QV134 # Created Thu Apr 25 01:18:02 2024 # Orbit generated from Bernstein formalism # Fitting 7 observations of 7 # Arc: 2.85y # First observation: 2015/11/07 # Last observation: 2018/09/11 Preliminary a, adot, b, bdot, g, gdot: -0.000124 0.033381 0.000010 -0.000729 0.028406 0.000000 # Chi-squared of fit: 3.37 DOF: 8 RMS: 0.12 # Min/Max residuals: -0.21 0.17 # Exact a, adot, b, bdot, g, gdot: 1.817035E-05 3.283432E-02 6.046393E-07 -7.214867E-04 2.897420E-02 -3.194604E-03 # Covariance matrix: 1.3984E-12 -1.7912E-12 -9.7491E-15 2.2602E-14 -3.8899E-13 -1.2008E-11 -1.7912E-12 4.1759E-12 3.4517E-14 -4.8266E-14 -4.0387E-13 2.9138E-11 -9.7491E-15 3.4517E-14 6.1720E-13 -3.4771E-13 -1.0430E-14 2.4444E-13 2.2602E-14 -4.8266E-14 -3.4771E-13 2.9655E-13 -5.2256E-15 -3.8460E-13 -3.8899E-13 -4.0387E-13 -1.0430E-14 -5.2256E-15 1.2331E-12 -4.6025E-13 -1.2008E-11 2.9138E-11 2.4444E-13 -3.8460E-13 -4.6025E-13 2.2438E-10 # lat0 lon0 xBary yBary zBary JD0 -8.078473 21.562273 -0.380522 -0.128918 -0.909783 2457333.630999 # Heliocentric elements and errors Epoch: 2457330.5000 = 2015/11/04 Mean Anomaly: 336.53799 +/- 0.105 Argument of Peri: 295.47424 +/- 0.161 Long of Asc Node: 120.61886 +/- 0.007 Inclination: 7.95498 +/- 0.000 Eccentricity: 0.18167028 +/- 0.0002 Semi-Major Axis: 42.15888434 +/- 0.0097 Time of Perihelion: 2463846.7055 +/- 29.0 Perihelion: 34.49986784 +/- 0.0125 Aphelion: 49.81790083 +/- 0.0150 Period (y) 273.7423 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.49045820 +/- 0.0012 Ecliptic Y 13.24939452 +/- 0.0005 Ecliptic Z -4.85018339 +/- 0.0002 Ecliptic XDOT -0.00142852 +/- 0.0000 Ecliptic YDOT 0.00276544 +/- 0.0000 Ecliptic ZDOT -0.00002504 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.42175331 +/- 0.0011 Geocenter to KBO 34.51346258 +/- 0.0013 # Hcoef: 8.63
The following table shows the complete astrometric record for 16QV134. 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 (16QV134) followed by the observatory code and reference code for the source of the astrometry.
2015 11 07.13021 01 31 45.912 +00 54 19.99 24.6r 16QV134 W84 C~55Zc 2016 08 26.34197 01 44 16.505 +02 10 23.20 24.0r 16QV134 W84 C~55Zc 2016 08 29.34948 01 44 08.444 +02 09 00.71 24.5g 16QV134 W84 C~55Zc 2016 10 23.18999 01 40 02.908 +01 40 06.68 24.0r 16QV134 W84 C~55Zc 2016 10 28.24666 01 39 36.347 +01 37 42.74 23.9r 16QV134 W84 C~55Zc 2017 08 22.36577 01 51 29.158 +02 51 20.28 23.9i 16QV134 W84 C~55Zc 2018 09 11.34733 01 57 40.408 +03 21 39.38 23.8r 16QV134 W84 C~55Zc
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 -0.21
2 0.8028 12158.27 0.15 83.12 0.17
3 0.8110 12015.05 -0.00 50.93 -0.02
4 0.9611 7944.36 -0.14 -202.93 0.02
5 0.9750 7520.51 0.17 -189.62 0.14
6 1.7912 19131.54 -0.19 -18.57 -0.02
7 2.8452 25039.13 0.07 -367.74 -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.
16QV134 quality flag:3 Type: 5:3EE 5:3EE 5:3EE axisobj 42.660 42.693 42.628 ecceobj 0.189 0.189 0.189 incobj 7.952 7.952 7.952 qmin 33.966 33.988 33.952 qmax 51.362 51.162 51.404 amean 42.328 42.328 42.328 amin 41.889 41.882 41.890 amax 42.810 42.812 42.829 emean 0.177 0.176 0.178 emin 0.160 0.156 0.160 emax 0.200 0.196 0.200 imean 6.731 6.769 6.738 imin 6.048 6.036 6.049 imax 7.732 7.910 7.783 excite_mean 0.213 0.212 0.213 fracstop 1.000 1.000 1.000 cjmean 3.029 3.029 3.029 libcent 0 180.2 179.4 179.9 libamp 0 77.7 83.3 78.1 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 162.8 166.7 161.0 kozaiamp 180.0 180.0 180.0