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: 13UG17 # Created Wed Dec 4 02:09:43 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 49 observations of 49 # Arc: 5.11y # First observation: 2013/08/02 # Last observation: 2018/09/12 # Chi-squared of fit: 26.94 DOF: 92 RMS: 0.13 # Min/Max residuals: -0.52 0.31 # Exact a, adot, b, bdot, g, gdot: 1.557704E-05 2.383052E-02 -2.344837E-06 -3.162304E-03 2.419495E-02 -9.104530E-04 # Covariance matrix: 1.2345E-13 -4.4965E-14 -1.3103E-15 3.3811E-15 6.1136E-14 -2.0726E-13 -4.4965E-14 1.2584E-13 8.2389E-15 -1.7063E-14 4.3686E-14 1.0762E-12 -1.3103E-15 8.2389E-15 5.1534E-14 -1.7298E-14 4.0282E-15 7.8677E-14 3.3811E-15 -1.7063E-14 -1.7298E-14 1.4558E-14 -7.6026E-15 -1.6226E-13 6.1136E-14 4.3686E-14 4.0282E-15 -7.6026E-15 9.6814E-14 4.8619E-13 -2.0726E-13 1.0762E-12 7.8677E-14 -1.6226E-13 4.8619E-13 1.0241E-11 # lat0 lon0 xBary yBary zBary JD0 -0.924654 15.892394 0.927447 -0.006698 -0.416691 2456507.009328 # Heliocentric elements and errors Epoch: 2456506.5000 = 2013/08/02 Mean Anomaly: 310.49528 +/- 0.055 Argument of Peri: 243.59670 +/- 0.070 Long of Asc Node: 187.78266 +/- 0.000 Inclination: 7.63875 +/- 0.000 Eccentricity: 0.07755587 +/- 0.0001 Semi-Major Axis: 43.80027157 +/- 0.0023 Time of Perihelion: 2471066.3793 +/- 17.6 Perihelion: 40.40330333 +/- 0.0052 Aphelion: 47.19723982 +/- 0.0054 Period (y) 289.8834 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.40054933 +/- 0.0005 Ecliptic Y 10.54148993 +/- 0.0001 Ecliptic Z -0.66703361 +/- 0.0000 Ecliptic XDOT -0.00084927 +/- 0.0000 Ecliptic YDOT 0.00256293 +/- 0.0000 Ecliptic ZDOT -0.00035599 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.75854030 +/- 0.0005 Geocenter to KBO 41.33098847 +/- 0.0005 # Hcoef: 8.19
The following table shows the complete astrometric record for 13UG17. 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 (13UG17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.50855 00 59 59.306 +05 23 59.07 24.4r 13UG17 568 C~2NKY 2013 08 02.55128 00 59 59.245 +05 23 58.57 24.3r 13UG17 568 C~2NKY 2013 08 11.50755 00 59 44.526 +05 21 57.64 25.5r 13UG17 568 C~2NKY 2013 08 30.42396 00 58 54.136 +05 15 46.80 23.9r 13UG17 568 C~2NKY 2013 08 31.42817 00 58 50.823 +05 15 23.23 24.4r 13UG17 568 C~2NKY 2013 08 31.47118 00 58 50.664 +05 15 22.38 24.5r 13UG17 568 C~2NKY 2013 09 04.40817 00 58 37.075 +05 13 46.30 24.2r 13UG17 568 C~2NKY 2013 09 04.45095 00 58 36.935 +05 13 45.37 24.4r 13UG17 568 C~2NKY 2013 10 06.38359 00 56 24.257 +04 58 40.59 24.0r 13UG17 568 C~2NKY 2013 10 06.44798 00 56 23.960 +04 58 38.41 24.4r 13UG17 568 C~2NKY 2013 10 06.45762 00 56 23.907 +04 58 38.24 24.2r 13UG17 568 C~2NKY 2013 10 06.46264 00 56 23.890 +04 58 38.33 25.0r 13UG17 568 C~2NKY 2013 10 09.51275 00 56 10.198 +04 57 06.64 24.3r 13UG17 568 C~2NKY 2013 10 31.23096 00 54 36.014 +04 46 42.37 24.1r 13UG17 568 C~2NKY 2013 10 31.27407 00 54 35.805 +04 46 40.99 24.5r 13UG17 568 C~2NKY 2013 10 31.31685 00 54 35.625 +04 46 40.00 24.0r 13UG17 568 C~2NKY 2013 11 01.25731 00 54 31.846 +04 46 14.91 24.2r 13UG17 568 C~2NKY 2013 11 05.38291 00 54 15.608 +04 44 28.16 24.6r 13UG17 568 C~2NKY 2013 11 29.22005 00 53 00.351 +04 36 14.82 24.6r 13UG17 568 C~2NKY 2013 12 04.24712 00 52 49.460 +04 35 03.50 24.6r 13UG17 568 C~2NKY 2013 12 04.29457 00 52 49.359 +04 35 02.72 25.2r 13UG17 568 C~2NKY 2013 12 06.21068 00 52 45.765 +04 34 39.35 23.5r 13UG17 568 C~2NKY 2014 06 27.59003 01 05 06.240 +05 46 04.18 24.5r 13UG17 568 C~2NKY 2014 06 28.59510 01 05 08.162 +05 46 12.48 24.3r 13UG17 568 C~2NKY 2014 07 24.54140 01 05 27.570 +05 46 38.43 24.5r 13UG17 568 C~2NKY 2014 07 27.57207 01 05 26.026 +05 46 17.99 24.3r 13UG17 568 C~2NKY 2014 08 22.59325 01 04 41.860 +05 40 15.68 25.0r 13UG17 568 C~2NKY 2014 08 28.43479 01 04 25.051 +05 38 13.11 24.6r 13UG17 568 C~2NKY 2014 10 23.35625 01 00 34.695 +05 12 13.41 24.2r 13UG17 568 C~2NKY 2014 10 23.37571 01 00 34.630 +05 12 12.88 24.4r 13UG17 568 C~2NKY 2014 10 26.45174 01 00 21.328 +05 10 45.71 21.9r 13UG17 568 C~2NKY 2014 10 27.39496 01 00 17.296 +05 10 19.63 24.3r 13UG17 568 C~2NKY 2014 10 27.41437 01 00 17.203 +05 10 19.09 25.2r 13UG17 568 C~2NKY 2014 11 24.24776 00 58 35.703 +04 59 21.58 24.0r 13UG17 568 C~2NKY 2014 11 24.27889 00 58 35.606 +04 59 21.04 25.1r 13UG17 568 C~2NKY 2014 11 25.24396 00 58 32.891 +04 59 03.80 24.8r 13UG17 568 C~2NKY 2014 11 25.30520 00 58 32.709 +04 59 02.11 23.2r 13UG17 568 C~2NKY 2014 12 17.27056 00 57 50.487 +04 54 32.50 24.1r 13UG17 568 C~2NKY 2015 01 17.27935 00 58 03.501 +04 55 52.63 24.6r 13UG17 568 C~2NKY 2015 08 20.52313 01 10 11.756 +06 02 21.52 24.3r 13UG17 568 C~2NKY 2015 12 07.37370 01 03 26.762 +05 17 32.30 24.8w 13UG17 568 C~2NKY 2017 07 24.60098 01 21 32.734 +06 49 28.35 24.2w 13UG17 568 C~2NKY 2017 08 25.51775 01 20 49.059 +06 42 50.69 24.6w 13UG17 568 C~2NKY 2017 08 30.45989 01 20 35.232 +06 41 08.63 24.6w 13UG17 568 C~2NKY 2017 08 30.50665 01 20 35.096 +06 41 07.51 24.7w 13UG17 568 C~2NKY 2018 09 09.39841 01 25 32.509 +06 58 23.54 13UG17 568 C~2kPT 2018 09 09.61045 01 25 31.737 +06 58 18.40 13UG17 568 C~2kPT 2018 09 11.43066 01 25 25.309 +06 57 33.51 13UG17 568 C~2kPT 2018 09 12.62030 01 25 20.977 +06 57 03.80 13UG17 568 C~2kPT
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 -0.07 0.00 0.03
3 0.0246 0.00 -0.33 0.00 -0.52
4 0.0764 0.00 -0.03 0.00 0.05
5 0.0792 0.00 0.15 0.00 0.08
6 0.0793 0.00 -0.04 0.00 0.24
7 0.0901 0.00 -0.04 0.00 -0.02
8 0.0902 0.00 0.19 0.00 0.11
9 0.1776 0.00 0.03 0.00 0.02
10 0.1778 0.00 -0.01 0.00 -0.22
11 0.1778 0.00 -0.14 0.00 -0.10
12 0.1778 0.00 -0.05 0.00 0.14
13 0.1862 0.00 0.16 0.00 0.02
14 0.2456 0.00 0.31 0.00 0.13
15 0.2458 0.00 -0.16 0.00 -0.10
16 0.2459 0.00 -0.20 0.00 0.05
17 0.2485 0.00 -0.02 0.00 -0.05
18 0.2598 0.00 -0.13 0.00 -0.13
19 0.3250 0.00 0.26 0.00 0.07
20 0.3388 0.00 0.11 0.00 0.04
21 0.3389 0.00 0.05 0.00 -0.12
22 0.3442 0.00 0.09 0.00 0.17
23 0.9010 0.00 -0.01 0.00 -0.05
24 0.9037 0.00 0.05 0.00 -0.00
25 0.9748 0.00 0.01 0.00 0.03
26 0.9831 0.00 0.04 0.00 0.02
27 1.0543 0.00 -0.03 0.00 0.16
28 1.0703 0.00 0.04 0.00 0.23
29 1.2234 0.00 -0.24 0.00 -0.10
30 1.2235 0.00 0.08 0.00 -0.08
31 1.2319 0.00 0.17 0.00 -0.21
32 1.2345 0.00 0.04 0.00 0.03
33 1.2345 0.00 -0.09 0.00 0.03
34 1.3107 0.00 0.00 0.00 0.03
35 1.3108 0.00 -0.08 0.00 0.06
36 1.3134 0.00 -0.07 0.00 0.27
37 1.3136 0.00 -0.17 0.00 -0.33
38 1.3737 0.00 0.05 0.00 0.01
39 1.4586 0.00 0.02 0.00 0.05
40 2.0480 0.00 0.10 0.00 0.03
41 2.3460 0.00 -0.01 0.00 -0.06
42 3.9756 0.00 0.18 0.00 0.08
43 4.0630 0.00 0.01 0.00 -0.01
44 4.0765 0.00 -0.01 0.00 -0.01
45 4.0767 0.00 0.09 0.00 -0.12
46 5.1031 0.00 0.05 0.00 -0.07
47 5.1036 0.00 -0.18 0.00 -0.04
48 5.1086 0.00 -0.01 0.00 0.00
49 5.1119 0.00 -0.02 0.00 0.17
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.
13UG17 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.029 44.029 44.030 ecceobj 0.079 0.079 0.079 incobj 7.617 7.617 7.617 qmin 39.248 39.295 39.312 qmax 48.427 48.411 48.458 amean 43.730 43.728 43.730 amin 43.343 43.327 43.333 amax 44.138 44.148 44.160 emean 0.076 0.078 0.077 emin 0.044 0.049 0.050 emax 0.098 0.099 0.099 imean 8.167 8.109 8.079 imin 7.416 7.382 7.293 imax 8.885 8.882 8.916 excite_mean 0.161 0.161 0.160 fracstop 1.000 1.000 1.000 cjmean 3.067 3.067 3.068 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 185.6 183.6 185.9 kozaiamp 179.9 180.0 179.9