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: 13UJ17 # Created Fri Nov 22 02:09:46 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 63 observations of 63 # Arc: 8.26y # First observation: 2013/08/02 # Last observation: 2021/11/05 # Chi-squared of fit: 18.18 DOF: 120 RMS: 0.09 # Min/Max residuals: -0.19 0.31 # Exact a, adot, b, bdot, g, gdot: 1.894648E-05 3.693401E-02 2.091958E-06 4.138312E-03 3.111397E-02 -1.072195E-03 # Covariance matrix: 1.0893E-13 -3.4046E-14 3.5875E-15 -3.5694E-15 5.6053E-14 -1.0531E-13 -3.4046E-14 5.3264E-14 -4.2500E-15 5.7680E-15 1.7065E-14 1.7329E-13 3.5875E-15 -4.2500E-15 3.7471E-14 -1.0598E-14 -5.6738E-17 -1.6278E-14 -3.5694E-15 5.7680E-15 -1.0598E-14 7.7201E-15 1.4958E-15 2.1754E-14 5.6053E-14 1.7065E-14 -5.6738E-17 1.4958E-15 7.7155E-14 4.7045E-14 -1.0531E-13 1.7329E-13 -1.6278E-14 2.1754E-14 4.7045E-14 6.5307E-13 # lat0 lon0 xBary yBary zBary JD0 -2.578432 16.549834 0.932057 -0.018250 -0.405909 2456507.024878 # Heliocentric elements and errors Epoch: 2456506.5000 = 2013/08/02 Mean Anomaly: 345.31962 +/- 0.006 Argument of Peri: 359.71932 +/- 0.009 Long of Asc Node: 36.74343 +/- 0.000 Inclination: 6.81609 +/- 0.000 Eccentricity: 0.18778810 +/- 0.0000 Semi-Major Axis: 39.63898735 +/- 0.0018 Time of Perihelion: 2460223.7087 +/- 6.1 Perihelion: 32.19525720 +/- 0.0019 Aphelion: 47.08271749 +/- 0.0024 Period (y) 249.5698 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.43198927 +/- 0.0003 Ecliptic Y 8.37114556 +/- 0.0001 Ecliptic Z -1.44576596 +/- 0.0000 Ecliptic XDOT -0.00100663 +/- 0.0000 Ecliptic YDOT 0.00309234 +/- 0.0000 Ecliptic ZDOT 0.00036816 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.55976951 +/- 0.0003 Geocenter to KBO 32.13994452 +/- 0.0003 # Hcoef: 8.98
The following table shows the complete astrometric record for 13UJ17. 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 (13UJ17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.52410 01 04 58.130 +04 07 26.78 24.6r 13UJ17 568 C~2NKY 2013 08 02.56680 01 04 58.071 +04 07 26.31 24.5r 13UJ17 568 C~2NKY 2013 08 30.43961 01 03 40.472 +03 58 39.72 24.4r 13UJ17 568 C~2NKY 2013 08 31.44379 01 03 36.386 +03 58 13.72 23.1r 13UJ17 568 C~2NKY 2013 08 31.48677 01 03 36.187 +03 58 12.39 24.7r 13UJ17 568 C~2NKY 2013 08 31.49523 01 03 36.159 +03 58 12.14 24.2r 13UJ17 568 C~2NKY 2013 08 31.50005 01 03 36.155 +03 58 12.35 24.0r 13UJ17 568 C~2NKY 2013 08 31.50475 01 03 36.119 +03 58 11.96 24.0r 13UJ17 568 C~2NKY 2013 09 04.42370 01 03 19.440 +03 56 25.99 24.5r 13UJ17 568 C~2NKY 2013 10 06.39317 01 00 32.793 +03 39 39.99 24.1r 13UJ17 568 C~2NKY 2013 10 06.45289 01 00 32.447 +03 39 38.33 23.9r 13UJ17 568 C~2NKY 2013 10 06.46664 01 00 32.385 +03 39 37.71 23.5r 13UJ17 568 C~2NKY 2013 10 06.47596 01 00 32.315 +03 39 37.48 24.2r 13UJ17 568 C~2NKY 2013 10 09.51669 01 00 14.998 +03 37 57.36 23.7r 13UJ17 568 C~2NKY 2013 10 31.23488 00 58 15.114 +03 26 50.33 23.8r 13UJ17 568 C~2NKY 2013 10 31.27795 00 58 14.878 +03 26 48.99 24.5r 13UJ17 568 C~2NKY 2013 10 31.32073 00 58 14.675 +03 26 47.87 23.9r 13UJ17 568 C~2NKY 2013 11 01.26121 00 58 09.818 +03 26 22.19 23.9r 13UJ17 568 C~2NKY 2013 11 01.38296 00 58 09.170 +03 26 18.81 24.0r 13UJ17 568 C~2NKY 2013 11 05.38795 00 57 49.097 +03 24 33.31 23.9r 13UJ17 568 C~2NKY 2013 11 29.22393 00 56 12.807 +03 16 54.76 24.8r 13UJ17 568 C~2NKY 2013 12 04.25107 00 55 58.886 +03 16 02.20 24.0r 13UJ17 568 C~2NKY 2013 12 04.29848 00 55 58.760 +03 16 01.85 23.2r 13UJ17 568 C~2NKY 2013 12 05.24921 00 55 56.427 +03 15 53.85 24.1r 13UJ17 568 C~2NKY 2014 06 27.59782 01 11 58.437 +05 07 18.62 24.2r 13UJ17 568 C~2NKY 2014 06 28.60286 01 12 01.215 +05 07 33.36 24.1r 13UJ17 568 C~2NKZ 2014 07 24.55698 01 12 34.329 +05 10 00.21 24.2r 13UJ17 568 C~2NKZ 2014 07 27.58768 01 12 33.301 +05 09 47.70 23.9r 13UJ17 568 C~2NKZ 2014 08 22.55650 01 11 44.296 +05 04 05.98 24.0r 13UJ17 568 C~2NKZ 2014 08 22.56426 01 11 44.271 +05 04 06.07 24.3r 13UJ17 568 C~2NKZ 2014 08 28.41844 01 11 24.090 +05 01 57.13 23.9r 13UJ17 568 C~2NKZ 2014 08 28.42620 01 11 24.072 +05 01 56.82 23.9r 13UJ17 568 C~2NKZ 2014 10 23.36016 01 06 35.187 +04 33 39.98 24.4r 13UJ17 568 C~2NKZ 2014 10 23.36792 01 06 35.144 +04 33 39.87 24.5r 13UJ17 568 C~2NKZ 2014 10 26.45694 01 06 18.041 +04 32 06.38 24.2r 13UJ17 568 C~2NKZ 2014 10 27.39884 01 06 12.878 +04 31 38.08 24.0r 13UJ17 568 C~2NKZ 2014 10 27.40661 01 06 12.836 +04 31 37.84 24.0r 13UJ17 568 C~2NKZ 2014 11 24.23611 01 04 01.909 +04 20 31.30 24.3r 13UJ17 568 C~2NKZ 2014 11 24.24000 01 04 01.892 +04 20 31.22 24.1r 13UJ17 568 C~2NKZ 2014 11 25.23226 01 03 58.264 +04 20 14.70 24.8r 13UJ17 568 C~2NKZ 2014 11 25.23617 01 03 58.265 +04 20 14.62 24.2r 13UJ17 568 C~2NKZ 2014 12 17.25877 01 03 02.574 +04 16 55.59 23.4r 13UJ17 568 C~2NKZ 2015 01 17.24366 01 03 17.158 +04 22 06.01 24.0r 13UJ17 568 C~2NKZ 2015 01 17.29797 01 03 17.284 +04 22 07.16 24.1r 13UJ17 568 C~2NKZ 2015 08 20.51066 01 19 27.076 +06 06 46.58 23.8r 13UJ17 568 C~2NKZ 2015 10 15.30155 01 15 02.229 +05 40 51.36 23.7r 13UJ17 568 C~2NKZ 2015 10 15.30564 01 15 02.216 +05 40 51.18 23.8r 13UJ17 568 C~2NKZ 2015 10 15.31052 01 15 02.185 +05 40 51.06 24.4g 13UJ17 568 C~2NKZ 2015 10 15.31463 01 15 02.161 +05 40 50.84 24.3g 13UJ17 568 C~2NKZ 2015 10 15.31874 01 15 02.144 +05 40 50.81 24.5g 13UJ17 568 C~2NKZ 2015 10 15.32284 01 15 02.110 +05 40 50.64 24.4g 13UJ17 568 C~2NKZ 2015 10 15.32694 01 15 02.092 +05 40 50.59 24.2g 13UJ17 568 C~2NKZ 2015 10 15.33109 01 15 02.064 +05 40 50.36 24.3g 13UJ17 568 C~2NKZ 2015 10 15.33519 01 15 02.032 +05 40 50.35 24.4g 13UJ17 568 C~2NKZ 2015 10 15.33938 01 15 02.016 +05 40 50.12 24.4g 13UJ17 568 C~2NKZ 2015 10 15.34352 01 15 01.996 +05 40 49.99 24.5g 13UJ17 568 C~2NKZ 2015 10 15.34761 01 15 01.970 +05 40 49.89 24.3g 13UJ17 568 C~2NKZ 2015 10 15.35250 01 15 01.940 +05 40 49.72 23.7r 13UJ17 568 C~2NKZ 2015 10 15.35660 01 15 01.916 +05 40 49.57 23.8r 13UJ17 568 C~2NKZ 2015 12 07.37779 01 10 54.219 +05 19 49.85 24.6w 13UJ17 568 C~2NKZ 2021 11 05.233960 02 00 08.199 +11 40 12.19 24.1G 13UJ17 G37 C~5BQw 2021 11 05.288840 02 00 07.880 +11 40 10.49 13UJ17 G37 C~5BQw 2021 11 05.344140 02 00 07.547 +11 40 09.02 13UJ17 G37 C~5BQw
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 -0.03 0.00 -0.01
2 0.0001 0.00 0.04 0.00 -0.02
3 0.0764 0.00 0.06 0.00 0.04
4 0.0792 0.00 0.09 0.00 0.16
5 0.0793 0.00 -0.18 0.00 -0.04
6 0.0793 0.00 -0.07 0.00 -0.07
7 0.0793 0.00 0.18 0.00 0.27
8 0.0793 0.00 -0.06 0.00 0.00
9 0.0901 0.00 0.08 0.00 -0.09
10 0.1776 0.00 -0.15 0.00 -0.18
11 0.1778 0.00 -0.15 0.00 0.13
12 0.1778 0.00 0.12 0.00 -0.03
13 0.1778 0.00 -0.12 0.00 0.04
14 0.1862 0.00 -0.07 0.00 -0.03
15 0.2456 0.00 0.04 0.00 -0.02
16 0.2457 0.00 -0.10 0.00 -0.18
17 0.2458 0.00 0.24 0.00 -0.12
18 0.2484 0.00 -0.02 0.00 -0.02
19 0.2488 0.00 -0.19 0.00 -0.09
20 0.2597 0.00 0.17 0.00 -0.04
21 0.3250 0.00 -0.02 0.00 0.06
22 0.3387 0.00 0.07 0.00 -0.07
23 0.3389 0.00 0.04 0.00 -0.00
24 0.3415 0.00 0.02 0.00 -0.07
25 0.9010 0.00 -0.05 0.00 0.06
26 0.9037 0.00 0.12 0.00 -0.06
27 0.9748 0.00 0.07 0.00 0.05
28 0.9831 0.00 0.08 0.00 0.05
29 1.0542 0.00 -0.07 0.00 -0.08
30 1.0542 0.00 -0.06 0.00 0.17
31 1.0702 0.00 -0.06 0.00 0.05
32 1.0702 0.00 0.11 0.00 -0.08
33 1.2234 0.00 -0.06 0.00 0.06
34 1.2234 0.00 -0.04 0.00 0.19
35 1.2318 0.00 0.12 0.00 0.23
36 1.2344 0.00 -0.09 0.00 -0.07
37 1.2344 0.00 -0.07 0.00 -0.08
38 1.3106 0.00 0.01 0.00 0.02
39 1.3107 0.00 -0.02 0.00 0.00
40 1.3134 0.00 0.08 0.00 -0.05
41 1.3134 0.00 0.31 0.00 -0.07
42 1.3737 0.00 -0.05 0.00 0.31
43 1.4585 0.00 -0.04 0.00 -0.08
44 1.4587 0.00 0.04 0.00 -0.08
45 2.0479 0.00 0.00 0.00 -0.04
46 2.2006 0.00 -0.14 0.00 0.02
47 2.2006 0.00 0.02 0.00 -0.03
48 2.2006 0.00 -0.02 0.00 0.00
49 2.2007 0.00 -0.02 0.00 -0.09
50 2.2007 0.00 0.09 0.00 0.02
51 2.2007 0.00 -0.06 0.00 -0.02
52 2.2007 0.00 0.03 0.00 0.06
53 2.2007 0.00 -0.03 0.00 -0.04
54 2.2007 0.00 -0.15 0.00 0.08
55 2.2007 0.00 -0.02 0.00 -0.01
56 2.2007 0.00 0.05 0.00 -0.01
57 2.2007 0.00 0.02 0.00 0.02
58 2.2008 0.00 -0.00 0.00 0.01
59 2.2008 0.00 -0.00 0.00 -0.01
60 2.3459 0.00 0.10 0.00 -0.03
61 8.2593 0.00 -0.05 0.00 0.04
62 8.2595 0.00 0.06 0.00 -0.09
63 8.2596 0.00 -0.00 0.00 0.02
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.
13UJ17 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.844 39.843 39.844 ecceobj 0.191 0.191 0.191 incobj 6.807 6.807 6.807 qmin 31.774 31.622 31.785 qmax 47.956 48.039 48.090 amean 39.457 39.458 39.457 amin 38.908 38.893 38.925 amax 40.062 40.073 40.081 emean 0.179 0.179 0.177 emin 0.159 0.158 0.156 emax 0.197 0.201 0.200 imean 5.827 5.835 5.932 imin 5.117 4.513 4.896 imax 6.692 7.133 7.156 excite_mean 0.206 0.206 0.206 fracstop 1.000 1.000 1.000 cjmean 3.004 3.003 3.004 libcent 0 180.9 180.5 179.8 libamp 0 127.0 131.2 131.2 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 197.9 192.2 189.5 kozaiamp 179.9 180.0 179.9