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: 14YG92 # Created Fri Nov 22 02:10:13 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 15 observations of 15 # Arc: 8.96y # First observation: 2014/12/22 # Last observation: 2023/12/07 # Chi-squared of fit: 7.23 DOF: 24 RMS: 0.12 # Min/Max residuals: -0.24 0.31 # Exact a, adot, b, bdot, g, gdot: 1.538829E-05 2.599802E-02 4.103127E-07 -3.422189E-04 2.471527E-02 2.598705E-03 # Covariance matrix: 4.2396E-13 -1.8253E-13 -3.7104E-14 4.1992E-15 -2.0140E-13 -5.9542E-13 -1.8253E-13 2.0784E-13 1.3087E-15 -4.8119E-15 1.3192E-14 8.2038E-13 -3.7104E-14 1.3087E-15 1.7824E-13 -2.5646E-14 5.2444E-14 -9.0374E-15 4.1992E-15 -4.8119E-15 -2.5646E-14 9.1906E-15 -8.9690E-16 -1.9702E-14 -2.0140E-13 1.3192E-14 5.2444E-14 -8.9690E-16 2.7809E-13 -2.2002E-14 -5.9542E-13 8.2038E-13 -9.0374E-15 -1.9702E-14 -2.2002E-14 3.4072E-12 # lat0 lon0 xBary yBary zBary JD0 -26.743197 9.746133 -0.967944 -0.076633 -0.152529 2457013.573388 # Heliocentric elements and errors Epoch: 2457014.5000 = 2014/12/23 Mean Anomaly: 32.56129 +/- 0.011 Argument of Peri: 222.77905 +/- 0.016 Long of Asc Node: 101.55250 +/- 0.000 Inclination: 26.62861 +/- 0.000 Eccentricity: 0.18958746 +/- 0.0001 Semi-Major Axis: 47.58803076 +/- 0.0059 Time of Perihelion: 2446169.1356 +/- 4.3 Perihelion: 38.56593679 +/- 0.0068 Aphelion: 56.61012473 +/- 0.0085 Period (y) 328.2878 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 35.61280573 +/- 0.0008 Ecliptic Y 7.10106327 +/- 0.0001 Ecliptic Z -18.20710783 +/- 0.0004 Ecliptic XDOT -0.00025501 +/- 0.0000 Ecliptic YDOT 0.00287384 +/- 0.0000 Ecliptic ZDOT -0.00016330 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.62252019 +/- 0.0007 Geocenter to KBO 40.46079491 +/- 0.0009 # Hcoef: 7.40
The following table shows the complete astrometric record for 14YG92. 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 (14YG92) followed by the observatory code and reference code for the source of the astrometry.
2014 12 22.07261 01 19 23.421 -20 39 14.89 24.4g 14YG92 W84 C~55TR 2014 12 23.09313 01 19 22.220 -20 38 38.09 23.3r 14YG92 W84 C~55TR 2015 01 12.06014 01 19 20.349 -20 24 24.76 24.2r 14YG92 W84 C~55TR 2015 08 24.38299 01 32 52.882 -19 36 32.27 23.2i 14YG92 W84 C~55TR 2015 08 24.38435 01 32 52.860 -19 36 32.28 23.5r 14YG92 W84 C~55TR 2015 08 24.38578 01 32 52.877 -19 36 32.38 24.5g 14YG92 W84 C~55TR 2015 10 07.23199 01 30 02.335 -20 05 23.45 22.5i 14YG92 W84 C~55TR 2015 11 07.14852 01 27 32.508 -20 14 28.47 23.7r 14YG92 W84 C~55TR 2016 11 04.15638 01 33 28.387 -19 36 21.94 23.5r 14YG92 W84 C~55TR 2017 11 27.06623 01 37 33.231 -18 57 27.30 23.3i 14YG92 W84 C~55TR 2017 12 08.06381 01 36 57.760 -18 54 25.73 23.4r 14YG92 W84 C~55TR 2018 10 18.30397 01 46 08.966 -18 14 26.56 23.0r 14YG92 W84 C~55TR 2023 12 07.098350 02 09 23.653 -15 00 47.42 23.4G 14YG92 G37 C~7dJH 2023 12 07.148950 02 09 23.443 -15 00 46.78 14YG92 G37 C~7dJH 2023 12 07.200770 02 09 23.275 -15 00 46.25 14YG92 G37 C~7dJH
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 0.31 0.00 -0.01
2 0.0028 0.00 -0.22 0.00 0.04
3 0.0575 0.00 -0.18 0.00 0.03
4 0.6716 0.00 0.09 0.00 -0.05
5 0.6716 0.00 -0.19 0.00 -0.00
6 0.6716 0.00 0.12 0.00 -0.04
7 0.7917 0.00 -0.04 0.00 0.06
8 0.8763 0.00 0.22 0.00 0.01
9 1.8702 0.00 -0.04 0.00 0.04
10 2.9322 0.00 0.05 0.00 -0.10
11 2.9623 0.00 -0.04 0.00 0.04
12 3.8227 0.00 -0.01 0.00 0.03
13 8.9583 0.00 0.22 0.00 0.07
14 8.9585 0.00 -0.24 0.00 0.04
15 8.9586 0.00 -0.01 0.00 -0.12
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.
14YG92 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.107 48.107 48.107 ecceobj 0.198 0.198 0.198 incobj 26.635 26.635 26.635 qmin 36.825 36.824 36.827 qmax 59.248 59.244 59.250 amean 47.797 47.797 47.797 amin 47.353 47.348 47.360 amax 48.297 48.294 48.301 emean 0.161 0.161 0.161 emin 0.092 0.092 0.092 emax 0.229 0.229 0.229 imean 25.721 25.721 25.721 imin 24.506 24.505 24.508 imax 26.783 26.783 26.782 excite_mean 0.464 0.464 0.464 fracstop 1.000 1.000 1.000 cjmean 2.869 2.869 2.869 libcent 0 81.8 81.8 81.7 libamp 0 37.2 37.2 37.2 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 176.4 176.5 176.5 kozaiamp 180.0 180.0 180.0