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: 16QL134 # Created Tue Apr 29 01:10:47 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 9 observations of 9 # Arc: 5.13y # First observation: 2013/10/11 # Last observation: 2018/11/29 # Chi-squared of fit: 2.65 DOF: 12 RMS: 0.10 # Min/Max residuals: -0.24 0.15 # Exact a, adot, b, bdot, g, gdot: 1.555545E-05 2.351784E-02 -1.049727E-06 -1.324483E-03 2.409679E-02 -8.236029E-04 # Covariance matrix: 1.2208E-12 -8.5894E-13 -2.5026E-14 3.5072E-14 -3.4667E-13 -5.7096E-12 -8.5894E-13 1.1045E-12 3.7893E-14 -5.3042E-14 1.2694E-13 9.2337E-12 -2.5026E-14 3.7893E-14 7.1913E-13 -2.0367E-13 7.4280E-15 3.3748E-13 3.5072E-14 -5.3042E-14 -2.0367E-13 7.6031E-14 -1.0527E-14 -4.7232E-13 -3.4667E-13 1.2694E-13 7.4280E-15 -1.0527E-14 8.5493E-13 5.8233E-13 -5.7096E-12 9.2337E-12 3.3748E-13 -4.7232E-13 5.8233E-13 8.3049E-11 # lat0 lon0 xBary yBary zBary JD0 -8.505078 14.301966 -0.060130 -0.147217 -0.985289 2456576.748258 # Heliocentric elements and errors Epoch: 2456576.5000 = 2013/10/11 Mean Anomaly: 311.81917 +/- 0.339 Argument of Peri: 301.29043 +/- 0.389 Long of Asc Node: 125.66656 +/- 0.004 Inclination: 8.90473 +/- 0.000 Eccentricity: 0.04679999 +/- 0.0003 Semi-Major Axis: 43.79588154 +/- 0.0071 Time of Perihelion: 2470744.8759 +/- 102.2 Perihelion: 41.74623478 +/- 0.0138 Aphelion: 45.84552830 +/- 0.0141 Period (y) 289.8399 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.72074564 +/- 0.0015 Ecliptic Y 10.44634922 +/- 0.0004 Ecliptic Z -6.13771091 +/- 0.0002 Ecliptic XDOT -0.00077750 +/- 0.0000 Ecliptic YDOT 0.00255947 +/- 0.0000 Ecliptic ZDOT -0.00013485 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.48504195 +/- 0.0015 Geocenter to KBO 41.49936978 +/- 0.0016 # Hcoef: 7.43
The following table shows the complete astrometric record for 16QL134. 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 (16QL134) followed by the observatory code and reference code for the source of the astrometry.
2013 10 11.24748 01 05 48.241 -02 12 25.17 23.7r 16QL134 W84 C~52ZY 2014 10 03.31013 01 11 30.158 -01 41 32.08 23.7i 16QL134 W84 C~52ZY 2015 09 04.27832 01 18 29.908 -01 00 02.56 22.8z 16QL134 W84 C~52ZY 2016 08 25.40953 01 24 00.398 -00 28 54.66 23.4i 16QL134 W84 C~52ZY 2016 10 10.18355 01 21 09.070 -00 50 51.99 23.5i 16QL134 W84 C~52ZY 2016 10 23.22603 01 20 10.867 -00 56 36.83 23.9r 16QL134 W84 C~52ZY 2017 08 28.38062 01 28 57.338 -00 03 04.98 23.4i 16QL134 W84 C~52ZY 2017 09 24.25475 01 27 24.854 -00 15 50.90 23.7r 16QL134 W84 C~52ZY 2018 11 29.10663 01 28 00.126 -00 12 53.20 23.7r 16QL134 W84 C~52ZY
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 -0.04 0.00 0.02
2 0.9776 0.00 0.08 0.00 -0.08
3 1.8974 0.00 0.01 0.00 0.02
4 2.8724 0.00 0.09 0.00 -0.08
5 2.9978 0.00 -0.03 0.00 -0.04
6 3.0335 0.00 -0.03 0.00 0.15
7 3.8799 0.00 0.10 0.00 0.10
8 3.9535 0.00 -0.24 0.00 0.03
9 5.1331 0.00 0.11 0.00 -0.10
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.
16QL134 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.049 44.049 44.049 ecceobj 0.049 0.049 0.049 incobj 8.897 8.897 8.897 qmin 40.631 40.636 40.625 qmax 47.199 47.174 47.154 amean 43.779 43.779 43.779 amin 43.432 43.428 43.439 amax 44.132 44.140 44.138 emean 0.052 0.052 0.052 emin 0.037 0.037 0.037 emax 0.069 0.069 0.069 imean 7.574 7.574 7.574 imin 6.971 6.971 6.971 imax 8.253 8.250 8.249 excite_mean 0.142 0.142 0.142 fracstop 1.000 1.000 1.000 cjmean 3.075 3.075 3.075 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 179.7 179.7 179.7 kozaiamp 180.0 180.0 180.0