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: 13UO17 # Created Wed Apr 24 01:15:30 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 50 observations of 50 # Arc: 5.12y # First observation: 2013/08/02 # Last observation: 2018/09/14 # Chi-squared of fit: 15.25 DOF: 94 RMS: 0.10 # Min/Max residuals: -0.37 0.23 # Exact a, adot, b, bdot, g, gdot: 1.964813E-05 3.602583E-02 -1.090661E-06 -1.901947E-03 2.910478E-02 -3.927350E-03 # Covariance matrix: 1.1853E-13 -5.9663E-14 -5.0605E-16 2.2601E-15 4.9925E-14 -2.2373E-13 -5.9663E-14 1.3290E-13 4.1748E-15 -7.2513E-15 3.7890E-14 7.2725E-13 -5.0605E-16 4.1748E-15 5.1599E-14 -1.7838E-14 2.4921E-15 2.6016E-14 2.2601E-15 -7.2513E-15 -1.7838E-14 1.3889E-14 -2.6566E-15 -4.4330E-14 4.9925E-14 3.7890E-14 2.4921E-15 -2.6566E-15 8.8611E-14 2.7000E-13 -2.2373E-13 7.2725E-13 2.6016E-14 -4.4330E-14 2.7000E-13 4.4477E-12 # lat0 lon0 xBary yBary zBary JD0 -2.296157 16.497569 0.931686 -0.016284 -0.406843 2456507.024878 # Heliocentric elements and errors Epoch: 2456506.5000 = 2013/08/02 Mean Anomaly: 348.39586 +/- 0.004 Argument of Peri: 244.52359 +/- 0.011 Long of Asc Node: 158.72326 +/- 0.002 Inclination: 3.83315 +/- 0.000 Eccentricity: 0.39197975 +/- 0.0000 Semi-Major Axis: 55.28517050 +/- 0.0042 Time of Perihelion: 2461346.2364 +/- 16.6 Perihelion: 33.61450330 +/- 0.0036 Aphelion: 76.95583770 +/- 0.0064 Period (y) 411.0751 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.57242180 +/- 0.0003 Ecliptic Y 8.97459461 +/- 0.0001 Ecliptic Z -1.37656523 +/- 0.0000 Ecliptic XDOT -0.00132941 +/- 0.0000 Ecliptic YDOT 0.00314170 +/- 0.0000 Ecliptic ZDOT -0.00016383 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 34.77861691 +/- 0.0003 Geocenter to KBO 34.35871773 +/- 0.0004 # Hcoef: 8.17
The following table shows the complete astrometric record for 13UO17. 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 (13UO17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.52410 01 04 20.541 +04 21 53.85 23.7r 13UO17 568 C~2NKZ 2013 08 02.56680 01 04 20.487 +04 21 53.32 23.7r 13UO17 568 C~2NKZ 2013 08 30.43961 01 03 11.315 +04 12 34.25 23.4r 13UO17 568 C~2NKZ 2013 08 31.44379 01 03 07.626 +04 12 07.38 23.8r 13UO17 568 C~2NKZ 2013 08 31.48677 01 03 07.445 +04 12 06.29 23.3r 13UO17 568 C~2NKZ 2013 08 31.49523 01 03 07.409 +04 12 06.02 23.5r 13UO17 568 C~2NKZ 2013 08 31.50005 01 03 07.406 +04 12 05.90 23.4r 13UO17 568 C~2NKZ 2013 08 31.50475 01 03 07.375 +04 12 05.77 23.4r 13UO17 568 C~2NKZ 2013 10 06.39713 01 00 20.699 +03 53 12.62 23.5r 13UO17 568 C~2NKZ 2013 10 06.47088 01 00 20.308 +03 53 10.17 23.2r 13UO17 568 C~2NKZ 2013 10 06.47992 01 00 20.273 +03 53 09.71 23.6r 13UO17 568 C~2NKZ 2013 10 09.52057 01 00 04.473 +03 51 28.01 23.7r 13UO17 568 C~2NKZ 2013 10 31.23884 00 58 15.302 +03 40 02.53 23.9r 13UO17 568 C~2NKZ 2013 10 31.28183 00 58 15.097 +03 40 01.29 23.7r 13UO17 568 C~2NKZ 2013 10 31.32461 00 58 14.881 +03 40 00.12 23.7r 13UO17 568 C~2NKZ 2013 11 01.26510 00 58 10.493 +03 39 33.20 23.6r 13UO17 568 C~2NKZ 2013 11 01.38800 00 58 09.901 +03 39 29.76 23.8r 13UO17 568 C~2NKZ 2013 11 05.38795 00 57 51.673 +03 37 39.31 23.7r 13UO17 568 C~2NKZ 2013 12 04.25494 00 56 12.284 +03 28 14.49 13UO17 568 C~2NKZ 2013 12 05.24921 00 56 10.115 +03 28 03.92 23.7r 13UO17 568 C~2NKZ 2014 07 24.55698 01 12 16.647 +05 04 33.19 23.7r 13UO17 568 C~2NKZ 2014 07 27.58768 01 12 16.080 +05 04 12.71 24.0r 13UO17 568 C~2NKZ 2014 08 22.55650 01 11 33.579 +04 57 38.13 23.5r 13UO17 568 C~2NKZ 2014 08 22.56426 01 11 33.557 +04 57 38.08 23.8r 13UO17 568 C~2NKZ 2014 08 28.41844 01 11 15.432 +04 55 20.35 23.6r 13UO17 568 C~2NKa 2014 08 28.42620 01 11 15.409 +04 55 20.28 23.4r 13UO17 568 C~2NKa 2014 08 29.52684 01 11 11.677 +04 54 52.66 23.4r 13UO17 568 C~2NKa 2014 08 29.53615 01 11 11.658 +04 54 52.09 25.4u 13UO17 568 C~2NKa 2014 08 29.57460 01 11 11.500 +04 54 51.09 24.6u 13UO17 568 C~2NKa 2014 08 29.60958 01 11 11.382 +04 54 50.46 25.7u 13UO17 568 C~2NKa 2014 08 29.61463 01 11 11.367 +04 54 50.53 23.6r 13UO17 568 C~2NKa 2014 10 23.36016 01 06 52.454 +04 26 13.09 23.2r 13UO17 568 C~2NKa 2014 10 26.45694 01 06 36.800 +04 24 36.63 23.0r 13UO17 568 C~2NKa 2014 10 27.39884 01 06 32.074 +04 24 08.15 23.5r 13UO17 568 C~2NKa 2014 11 24.23611 01 04 32.923 +04 12 29.67 24.0r 13UO17 568 C~2NKa 2014 11 24.24000 01 04 32.905 +04 12 29.65 23.6r 13UO17 568 C~2NKa 2014 11 25.23226 01 04 29.619 +04 12 11.67 23.8r 13UO17 568 C~2NKa 2014 11 25.23617 01 04 29.609 +04 12 11.71 23.7r 13UO17 568 C~2NKa 2014 12 17.26271 01 03 40.039 +04 08 09.20 24.4r 13UO17 568 C~2NKa 2015 01 17.24366 01 03 57.314 +04 11 46.53 23.8r 13UO17 568 C~2NKa 2015 01 17.29797 01 03 57.431 +04 11 47.51 23.7r 13UO17 568 C~2NKa 2015 08 20.51066 01 19 39.162 +05 40 03.30 23.5r 13UO17 568 C~2NKa 2015 12 07.38604 01 11 52.438 +04 51 01.37 13UO17 568 C~2NKa 2017 07 24.60568 01 36 10.610 +07 07 17.18 13UO17 568 C~2NKa 2017 08 25.50368 01 35 38.036 +07 01 00.94 23.9w 13UO17 568 C~2NKa 2017 08 30.44591 01 35 24.027 +06 59 14.14 22.9w 13UO17 568 C~2NKa 2017 08 30.49268 01 35 23.879 +06 59 13.03 23.5w 13UO17 568 C~2NKa 2018 09 14.312690 01 42 47.55 +07 34 23.7 23.6G 13UO17 705 C~2rA9 2018 09 14.360330 01 42 47.35 +07 34 22.2 23.3G 13UO17 705 C~2rA9 2018 09 14.405470 01 42 47.17 +07 34 21.0 23.5G 13UO17 705 C~2rA9
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 0.00
2 0.0001 0.00 -0.01 0.00 0.01
3 0.0764 0.00 0.02 0.00 -0.06
4 0.0792 0.00 0.11 0.00 -0.02
5 0.0793 0.00 -0.15 0.00 0.05
6 0.0793 0.00 -0.20 0.00 0.01
7 0.0793 0.00 0.03 0.00 0.02
8 0.0793 0.00 -0.17 0.00 0.02
9 0.1776 0.00 -0.00 0.00 0.06
10 0.1778 0.00 -0.02 0.00 0.09
11 0.1778 0.00 0.17 0.00 -0.07
12 0.1862 0.00 -0.10 0.00 0.14
13 0.2456 0.00 -0.00 0.00 0.04
14 0.2457 0.00 0.01 0.00 0.03
15 0.2459 0.00 -0.15 0.00 0.09
16 0.2484 0.00 0.04 0.00 0.02
17 0.2488 0.00 -0.07 0.00 0.06
18 0.2597 0.00 0.10 0.00 -0.08
19 0.3388 0.00 0.08 0.00 -0.08
20 0.3415 0.00 0.01 0.00 0.15
21 0.9748 0.00 0.09 0.00 -0.01
22 0.9831 0.00 0.16 0.00 -0.14
23 1.0542 0.00 0.04 0.00 -0.02
24 1.0542 0.00 0.06 0.00 0.10
25 1.0702 0.00 -0.00 0.00 -0.06
26 1.0702 0.00 0.05 0.00 0.06
27 1.0732 0.00 0.02 0.00 -0.00
28 1.0733 0.00 0.23 0.00 -0.34
29 1.0734 0.00 -0.11 0.00 -0.37
30 1.0735 0.00 -0.03 0.00 -0.11
31 1.0735 0.00 0.01 0.00 0.09
32 1.2234 0.00 0.07 0.00 0.05
33 1.2318 0.00 0.17 0.00 -0.16
34 1.2344 0.00 -0.23 0.00 0.13
35 1.3106 0.00 0.05 0.00 -0.06
36 1.3107 0.00 -0.02 0.00 -0.01
37 1.3134 0.00 -0.03 0.00 -0.00
38 1.3134 0.00 0.02 0.00 0.11
39 1.3737 0.00 0.04 0.00 -0.03
40 1.4585 0.00 -0.05 0.00 0.04
41 1.4587 0.00 -0.09 0.00 0.07
42 2.0479 0.00 0.05 0.00 0.07
43 2.3460 0.00 -0.04 0.00 -0.02
44 3.9756 0.00 -0.00 0.00 0.05
45 4.0629 0.00 -0.01 0.00 -0.04
46 4.0764 0.00 -0.05 0.00 0.14
47 4.0766 0.00 -0.06 0.00 0.09
48 5.1165 0.00 0.02 0.00 0.09
49 5.1166 0.00 -0.02 0.00 -0.10
50 5.1167 0.00 0.09 0.00 -0.06
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.
13UO17 quality flag:2 Type: SCATNEAR 5:2EEE 5:2EEE axisobj 55.695 55.694 55.695 ecceobj 0.396 0.396 0.396 incobj 3.825 3.825 3.825 qmin 32.516 32.972 32.967 qmax 83.881 79.837 79.959 amean 55.647 55.465 55.466 amin 54.429 54.443 54.407 amax 58.708 56.742 56.741 emean 0.396 0.394 0.394 emin 0.379 0.379 0.379 emax 0.431 0.408 0.409 imean 3.684 3.537 3.467 imin 2.916 2.926 2.923 imax 5.551 4.150 4.115 excite_mean 0.402 0.399 0.399 fracstop 1.000 1.000 1.000 cjmean 3.032 3.033 3.033 libcent 0 -180.0 179.2 180.0 libamp 0 -180.0 168.8 167.1 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 180.8 178.5 178.6 kozaiamp 180.0 180.0 180.0