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: 13UQ17 # Created Fri Nov 22 02:09:46 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 39 observations of 41 # Arc: 11.25y # First observation: 2013/08/02 # Last observation: 2024/11/01 # Chi-squared of fit: 61.79 DOF: 72 RMS: 0.22 # Min/Max residuals: -0.26 1.27 # Exact a, adot, b, bdot, g, gdot: 1.636937E-05 2.928839E-02 3.554074E-06 5.926398E-03 2.829439E-02 3.428577E-03 # Covariance matrix: 1.1974E-13 -2.7761E-14 3.4772E-15 -4.9818E-15 6.3116E-14 -7.9612E-14 -2.7761E-14 7.3062E-14 -8.7300E-15 1.3907E-14 3.1095E-14 2.3146E-13 3.4772E-15 -8.7300E-15 5.1444E-14 -1.3513E-14 -3.0008E-15 -3.2597E-14 -4.9818E-15 1.3907E-14 -1.3513E-14 1.3478E-14 5.3870E-15 5.1758E-14 6.3116E-14 3.1095E-14 -3.0008E-15 5.3870E-15 9.2911E-14 9.3261E-14 -7.9612E-14 2.3146E-13 -3.2597E-14 5.1758E-14 9.3261E-14 8.6046E-13 # lat0 lon0 xBary yBary zBary JD0 -1.106096 16.875609 0.934380 -0.007711 -0.400877 2456507.020968 # Heliocentric elements and errors Epoch: 2456506.5000 = 2013/08/02 Mean Anomaly: 69.67961 +/- 0.016 Argument of Peri: 274.81930 +/- 0.019 Long of Asc Node: 20.79867 +/- 0.000 Inclination: 11.42789 +/- 0.000 Eccentricity: 0.08966275 +/- 0.0000 Semi-Major Axis: 36.62650973 +/- 0.0016 Time of Perihelion: 2440835.5634 +/- 3.7 Perihelion: 33.34247613 +/- 0.0019 Aphelion: 39.91054333 +/- 0.0021 Period (y) 221.6672 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.46915295 +/- 0.0004 Ecliptic Y 9.48320562 +/- 0.0001 Ecliptic Z -0.68208028 +/- 0.0000 Ecliptic XDOT -0.00050093 +/- 0.0000 Ecliptic YDOT 0.00281067 +/- 0.0000 Ecliptic ZDOT 0.00056709 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.75633184 +/- 0.0004 Geocenter to KBO 35.34265259 +/- 0.0004 # Hcoef: 8.74
The following table shows the complete astrometric record for 13UQ17. 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 (13UQ17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.52019 01 03 54.994 +05 36 32.61 24.8r 13UQ17 568 C~2NKa 2013 08 02.56292 01 03 54.922 +05 36 32.36 24.0r 13UQ17 568 C~2NKa 2013 08 30.43573 01 02 38.526 +05 29 35.83 24.2r 13UQ17 568 C~2NKa 2013 08 31.43992 01 02 34.609 +05 29 14.02 24.7r 13UQ17 568 C~2NKa 2013 08 31.48289 01 02 34.438 +05 29 13.04 24.2r 13UQ17 568 C~2NKa 2013 09 04.41982 01 02 18.403 +05 27 43.62 24.6r 13UQ17 568 C~2NKa 2013 09 04.46259 01 02 18.229 +05 27 42.33 24.2r 13UQ17 568 C~2NKa 2013 10 06.40113 00 59 40.719 +05 13 02.20 24.2r 13UQ17 568 C~2NKa 2013 10 06.48380 00 59 40.277 +05 12 59.72 24.1r 13UQ17 568 C~2NKa 2013 10 09.52445 00 59 23.953 +05 11 29.58 23.7r 13UQ17 568 C~2NKa 2013 10 31.24273 00 57 31.175 +05 01 15.88 24.1r 13UQ17 568 C~2NKa 2013 10 31.28571 00 57 30.973 +05 01 14.68 24.0r 13UQ17 568 C~2NKa 2013 10 31.32850 00 57 30.749 +05 01 13.60 24.4r 13UQ17 568 C~2NKa 2013 11 01.26903 00 57 26.190 +05 00 49.45 24.4r 13UQ17 568 C~2NKa 2013 11 01.39303 00 57 25.594 +05 00 46.35 24.1r 13UQ17 568 C~2NKa 2013 11 05.44717 00 57 06.405 +04 59 04.95 24.5r 13UQ17 568 C~2NKa 2013 11 29.30934 00 55 34.960 +04 51 30.63 23.9r 13UQ17 568 C~2NKa 2013 12 04.25882 00 55 21.715 +04 50 33.84 23.9r 13UQ17 568 C~2NKa 2013 12 04.31091 00 55 21.602 +04 50 33.48 23.9r 13UQ17 568 C~2NKa 2013 12 06.21580 00 55 17.114 +04 50 15.41 24.7r 13UQ17 568 C~2NKa 2014 06 27.60171 01 09 19.580 +06 30 29.67 24.4r 13UQ17 568 C~2NKa 2014 06 28.60677 01 09 21.845 +06 30 45.45 24.5r 13UQ17 568 C~2NKa 2014 07 24.55310 01 09 45.168 +06 34 03.71 24.4r 13UQ17 568 C~2NKa 2014 07 27.58380 01 09 43.455 +06 33 59.72 24.3r 13UQ17 568 C~2NKa 2014 08 22.56814 01 08 52.279 +06 29 48.64 24.4r 13UQ17 568 C~2NKa 2014 08 22.58822 01 08 52.246 +06 29 48.75 24.0r 13UQ17 568 C~2NKa 2014 08 28.43091 01 08 32.538 +06 28 03.23 24.6r 13UQ17 568 C~2NKa 2014 10 23.35237 01 03 59.613 +06 03 10.11 24.4r 13UQ17 568 C~2NKa 2014 10 26.44781 01 03 43.575 +06 01 43.71 24.1r 13UQ17 568 C~2NKa 2014 10 27.39107 01 03 38.767 +06 01 17.76 24.0r 13UQ17 568 C~2NKa 2014 11 24.24776 01 01 36.153 +05 50 39.44 24.5r 13UQ17 568 C~2NKa 2014 11 25.24396 01 01 32.731 +05 50 22.87 24.4r 13UQ17 568 C~2NKa 2015 01 17.28768 01 00 49.685 +05 50 05.43 23.9r 13UQ17 568 C~2NKa 2015 08 20.50656 01 14 42.694 +07 27 16.26 24.3r 13UQ17 568 C~2NKa 2015 12 07.38190 01 06 40.357 +06 44 50.83 24.9w 13UQ17 568 C~2NKa 2015 12 07.39423 01 06 40.313 +06 44 50.31 24.6w 13UQ17 568 C~2NKa 2017 01 27.23065 01 12 22.795 +07 44 28.67 24.1w 13UQ17 568 C~2NKa 2017 01 28.22691 01 12 25.562 +07 44 48.90 24.5w 13UQ17 568 C~2NKa 2024 11 01.26203 02 01 00.133 +15 07 04.56 24.2G 13UQ17 G37 2024 11 01.30898 02 00 59.967 +15 07 03.49 13UQ17 G37 2024 11 01.35470 02 00 59.685 +15 07 02.22 13UQ17 G37
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 0.02 0.00 -0.05
2 0.0001 0.00 -0.05 0.00 0.02
3 0.0764 0.00 -0.16 0.00 -0.19
4 0.0792 0.00 -0.10 0.00 -0.11
5 0.0793 0.00 -0.06 0.00 -0.14
6 0.0901 0.00 0.01 0.00 0.16
7 0.0902 0.00 0.15 0.00 -0.13
8 0.1776 0.00 0.06 0.00 -0.02
9 0.1779 0.00 0.19 0.00 -0.05
10 0.1862 0.00 -0.24 0.00 -0.01
11 0.2456 0.00 -0.09 0.00 0.08
12 0.2458 0.00 0.07 0.00 -0.01
13 0.2459 0.00 -0.10 0.00 0.02
14 0.2485 0.00 -0.09 0.00 0.14
15 0.2488 0.00 0.13 0.00 0.22
16 0.2599 0.00 -0.04 0.00 -0.02
17 0.3252 0.00 0.01 0.00 -0.17
18 0.3388 0.00 -0.07 0.00 0.09
19 0.3389 0.00 0.22 0.00 0.25
20 0.3441 0.00 -0.12 0.00 0.16
21 0.9010 0.00 -0.06 0.00 0.15
22 0.9037 0.00 0.05 0.00 -0.04
23 0.9748 0.00 0.05 0.00 -0.09
24 0.9831 0.00 0.29 0.00 -0.23
25 1.0542 0.00 -0.22 0.00 -0.20
26 1.0543 0.00 0.26 0.00 0.25
27 1.0703 0.00 0.03 0.00 0.07
28 1.2234 0.00 0.05 0.00 0.04
29 1.2318 0.00 -0.14 0.00 0.10
30 1.2344 0.00 0.01 0.00 0.11
31 1.3107 0.00 -0.15 0.00 -0.26
32 1.3134 0.00 -0.02 0.00 -0.12
33 1.4586 0.00 0.24 0.00 -0.09
34 2.0479 0.00 0.00 0.00 0.02
35 2.3460 0.00 0.11 0.00 0.17
36 2.3460 0.00 -0.07 0.00 -0.21
37 3.4872 0.00 0.06 0.00 0.05
38 3.4900 0.00 -0.16 0.00 0.05
39 11.2491 0.00 0.97 0.00 1.27
40 11.2493 0.00 ( 2.38) 0.00 ( 1.43)
41 11.2494 0.00 ( 1.95) 0.00 ( 1.36)
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.
13UQ17 quality flag:3 Type: 4:3E 4:3E 4:3E axisobj 36.800 36.811 36.789 ecceobj 0.093 0.094 0.092 incobj 11.403 11.403 11.403 qmin 32.303 32.376 32.136 qmax 41.160 41.079 41.172 amean 36.479 36.479 36.479 amin 36.088 36.079 36.093 amax 36.889 36.904 36.879 emean 0.094 0.091 0.095 emin 0.072 0.070 0.072 emax 0.117 0.114 0.118 imean 12.453 13.577 11.619 imin 11.311 11.374 10.890 imax 13.160 14.814 12.128 excite_mean 0.235 0.252 0.223 fracstop 1.000 1.000 1.000 cjmean 2.960 2.950 2.967 libcent 0 179.7 178.9 180.6 libamp 0 101.4 109.2 95.5 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 178.4 180.3 179.1 kozaiamp 180.0 180.0 180.0