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: 14YU72 # Created Sun Dec 22 02:10:14 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 21 observations of 21 # Arc: 5.76y # First observation: 2014/12/17 # Last observation: 2020/09/21 # Chi-squared of fit: 9.07 DOF: 36 RMS: 0.12 # Min/Max residuals: -0.22 0.36 # Exact a, adot, b, bdot, g, gdot: 1.529921E-05 2.266873E-02 -4.438447E-06 -6.039755E-03 2.355287E-02 2.363384E-03 # Covariance matrix: 3.1333E-13 -1.7164E-13 -3.9695E-14 3.2338E-14 -1.3156E-13 -9.5503E-13 -1.7164E-13 1.9016E-13 3.2501E-14 -4.4647E-14 3.0418E-14 1.1628E-12 -3.9695E-14 3.2501E-14 1.7058E-13 -5.4951E-14 3.4055E-14 2.4804E-13 3.2338E-14 -4.4647E-14 -5.4951E-14 3.5771E-14 -5.9012E-15 -3.1033E-13 -1.3156E-13 3.0418E-14 3.4055E-14 -5.9012E-15 2.0579E-13 3.6145E-13 -9.5503E-13 1.1628E-12 2.4804E-13 -3.1033E-13 3.6145E-13 8.2370E-12 # lat0 lon0 xBary yBary zBary JD0 -27.008293 9.450235 -0.951167 -0.113360 -0.222845 2457008.643618 # Heliocentric elements and errors Epoch: 2457008.5000 = 2014/12/17 Mean Anomaly: 49.15268 +/- 0.019 Argument of Peri: 180.73092 +/- 0.028 Long of Asc Node: 130.48125 +/- 0.001 Inclination: 30.20839 +/- 0.000 Eccentricity: 0.14377076 +/- 0.0001 Semi-Major Axis: 46.42299493 +/- 0.0047 Time of Perihelion: 2441234.4629 +/- 6.4 Perihelion: 39.74872553 +/- 0.0072 Aphelion: 53.09726433 +/- 0.0080 Period (y) 316.3064 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.40137908 +/- 0.0007 Ecliptic Y 7.19176115 +/- 0.0001 Ecliptic Z -19.28108541 +/- 0.0004 Ecliptic XDOT -0.00050978 +/- 0.0000 Ecliptic YDOT 0.00258201 +/- 0.0000 Ecliptic ZDOT -0.00075017 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.68885114 +/- 0.0006 Geocenter to KBO 42.45764127 +/- 0.0008 # Hcoef: 7.13
The following table shows the complete astrometric record for 14YU72. 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 (14YU72) followed by the observatory code and reference code for the source of the astrometry.
2014 12 17.14284 01 18 50.468 -21 00 19.87 23.3r 14YU72 W84 C~4yVW 2014 12 17.14558 01 18 50.454 -21 00 19.95 22.9i 14YU72 W84 C~4yVW 2014 12 23.09313 01 18 42.87 -20 57 24.2 23.8r 14YU72 W84 C~3cpk 2014 12 23.12816 01 18 42.833 -20 57 23.04 24.1g 14YU72 W84 C~4yVW 2015 08 24.38299 01 31 41.119 -20 12 46.52 23.5i 14YU72 W84 C~4yVW 2015 08 24.38435 01 31 41.107 -20 12 46.69 23.5r 14YU72 W84 C~4yVW 2015 08 24.38578 01 31 41.104 -20 12 46.68 24.3g 14YU72 W84 C~4yVW 2015 10 07.23060 01 28 58.825 -20 42 50.46 23.4g 14YU72 W84 C~4yVW 2015 11 07.25695 01 26 36.099 -20 53 04.15 23.2r 14YU72 W84 C~4yVW 2016 10 08.14895 01 34 30.437 -20 28 12.66 23.1z 14YU72 W84 C~4yVW 2016 10 08.15033 01 34 30.452 -20 28 12.91 23.5i 14YU72 W84 C~4yVW 2016 11 04.15638 01 32 25.543 -20 37 32.91 23.4r 14YU72 W84 C~4yVW 2016 11 04.15775 01 32 25.535 -20 37 32.69 23.8g 14YU72 W84 C~4yVW 2016 12 02.05347 01 30 39.461 -20 36 28.53 23.3r 14YU72 W84 C~4yVW 2017 12 07.06407 01 35 59.752 -20 19 43.79 23.5r 14YU72 W84 C~4yVW 2017 12 07.06545 01 35 59.738 -20 19 43.95 23.9g 14YU72 W84 C~4yVW 2017 12 14.13410 01 35 42.387 -20 17 17.78 23.1z 14YU72 W84 C~4yVW 2018 09 10.28563 01 47 32.789 -19 37 07.08 23.2i 14YU72 W84 C~4yVW 2018 09 10.28700 01 47 32.776 -19 37 07.31 24.2g 14YU72 W84 C~4yVW 2020 09 21.433330 01 57 45.970 -19 10 05.44 23.5G 14YU72 G37 C~4A5h 2020 09 21.470720 01 57 45.812 -19 10 06.95 14YU72 G37 C~4A5h
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 0.06
2 0.0000 0.00 -0.20 0.00 -0.09
3 0.0163 0.00 0.08 0.00 0.02
4 0.0164 0.00 0.08 0.00 0.06
5 0.6851 0.00 0.05 0.00 0.06
6 0.6851 0.00 -0.08 0.00 -0.04
7 0.6851 0.00 -0.08 0.00 0.03
8 0.8052 0.00 0.36 0.00 -0.05
9 0.8901 0.00 -0.16 0.00 0.18
10 1.8097 0.00 -0.10 0.00 0.04
11 1.8097 0.00 0.23 0.00 -0.17
12 1.8837 0.00 0.01 0.00 -0.09
13 1.8837 0.00 -0.02 0.00 0.14
14 1.9601 0.00 0.07 0.00 0.04
15 2.9731 0.00 0.09 0.00 -0.04
16 2.9731 0.00 -0.06 0.00 -0.22
17 2.9924 0.00 -0.00 0.00 0.06
18 3.7321 0.00 -0.00 0.00 0.02
19 3.7321 0.00 -0.13 0.00 -0.15
20 5.7640 0.00 0.12 0.00 0.08
21 5.7641 0.00 -0.10 0.00 0.09
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.
14YU72 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.873 46.873 46.873 ecceobj 0.150 0.150 0.150 incobj 30.169 30.169 30.169 qmin 38.577 38.548 38.580 qmax 54.970 54.966 54.917 amean 46.596 46.604 46.597 amin 46.216 46.214 46.189 amax 47.025 47.054 47.039 emean 0.154 0.154 0.154 emin 0.141 0.141 0.140 emax 0.170 0.170 0.169 imean 28.606 28.605 28.606 imin 28.289 28.288 28.289 imax 28.896 28.894 28.899 excite_mean 0.503 0.503 0.503 fracstop 1.000 1.000 1.000 cjmean 2.804 2.804 2.804 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 181.6 181.6 181.0 kozaiamp 179.9 180.0 179.9