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: 661333 # Created Wed May 8 01:09:34 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 113 observations of 113 # Arc: 17.08y # First observation: 2004/08/15 # Last observation: 2021/09/13 # Chi-squared of fit: 67.61 DOF: 220 RMS: 0.14 # Min/Max residuals: -0.78 0.36 # Exact a, adot, b, bdot, g, gdot: 1.798685E-05 4.137650E-02 -8.836744E-06 -1.800438E-02 3.497928E-02 4.783345E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -0.896341 -48.319351 -0.197310 -0.015545 -0.997368 2453232.854003 # Heliocentric elements and errors Epoch: 2453233.0000 = 2004/08/15 Mean Anomaly: 16.66989 +/- 0.000 Argument of Peri: 151.96294 +/- 0.000 Long of Asc Node: 130.07358 +/- 0.000 Inclination: 23.58142 +/- 0.000 Eccentricity: 0.27939538 +/- 0.0000 Semi-Major Axis: 39.83547540 +/- 0.0000 Time of Perihelion: 2448980.6035 +/- 0.0 Perihelion: 28.70562771 +/- 0.0000 Aphelion: 50.96532310 +/- 0.0000 Period (y) 251.4278 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.81523961 +/- 0.0000 Ecliptic Y -21.96110929 +/- 0.0000 Ecliptic Z -0.44744261 +/- 0.0000 Ecliptic XDOT 0.00265111 +/- 0.0000 Ecliptic YDOT 0.00188345 +/- 0.0000 Ecliptic ZDOT -0.00141479 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 29.58260244 +/- 0.0000 Geocenter to KBO 28.58832114 +/- 0.0000 # Hcoef: 7.13
The following table shows the complete astrometric record for 661333. 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 (661333) followed by the observatory code and reference code for the source of the astrometry.
2004 08 15.35326 20 57 36.44 -18 08 37.3 21.6g 661333 568 C~0X5Y 2004 08 15.38455 20 57 36.23 -18 08 38.5 22.3g 661333 568 C~0X5Y 2004 08 15.41660 20 57 36.03 -18 08 39.7 21.9g 661333 568 C~0X5Y 2004 08 16.32469 20 57 30.31 -18 09 12.7 21.6g 661333 568 C~0X5Y 2004 10 04.26385 20 53 42.67 -18 32 14.4 21.7i 661333 568 C~0X5Y 2004 10 04.31600 20 53 42.56 -18 32 15.4 22.2i 661333 568 C~0X5Y 2004 10 04.36845 20 53 42.42 -18 32 16.4 21.5i 661333 568 C~0X5Y 2005 07 12.25410 21 11 54.27 -18 05 24.8 21.7R 661333 809 C~0X5Y 2005 07 12.30376 21 11 54.00 -18 05 26.7 22.1R 661333 809 C~0X5Y 2005 07 12.35372 21 11 53.71 -18 05 28.5 21.7R 661333 809 C~0X5Y 2005 07 13.23387 21 11 48.78 -18 06 01.1 22.9R 661333 809 C~0X5Y 2005 08 03.19430 21 09 40.78 -18 19 22.3 661333 309 C~0X5Y 2005 08 03.28468 21 09 40.20 -18 19 25.8 661333 309 C~0X5Y 2005 08 03.34141 21 09 39.83 -18 19 27.9 661333 309 C~0X5Y 2006 05 02.48097 21 24 31.13 -17 53 48.4 20.8r 661333 695 C~0X5Y 2006 05 04.47973 21 24 36.28 -17 53 55.4 20.7r 661333 695 C~0X5Y 2009 06 20.40298 21 55 05.70 -18 38 52.3 661333 695 C~0X5Y 2009 06 20.44233 21 55 05.60 -18 38 53.5 661333 695 C~0X5Y 2009 06 22.39729 21 55 00.52 -18 39 58.9 661333 695 C~0X5Y 2011 07 27.47499 22 12 50.966 -19 12 38.33 21.8G 661333 F51 C~2r7D 2011 07 27.48970 22 12 50.904 -19 12 39.06 21.8G 661333 F51 C~2r7D 2011 07 27.50438 22 12 50.820 -19 12 39.87 22.3G 661333 F51 C~2r7D 2011 07 27.51907 22 12 50.742 -19 12 40.59 21.8G 661333 F51 C~2r7D 2011 08 30.43035 22 09 31.551 -19 37 05.74 21.8G 661333 F51 C~2r7D 2011 08 30.44508 22 09 31.459 -19 37 06.03 22.2G 661333 F51 C~2r7D 2012 08 17.44633 22 20 46.496 -19 30 51.02 21.5G 661333 F51 C~2r7D 2012 08 17.46062 22 20 46.414 -19 30 51.66 21.5G 661333 F51 C~2r7D 2012 08 17.47488 22 20 46.334 -19 30 52.34 21.9G 661333 F51 C~2r7D 2012 08 17.48915 22 20 46.236 -19 30 52.81 21.8G 661333 F51 C~2r7D 2013 08 09.44376 22 31 24.849 -19 24 46.06 20.9G 661333 F51 C~2r7D 2013 08 09.45801 22 31 24.780 -19 24 46.97 21.4G 661333 F51 C~2r7D 2013 08 09.47225 22 31 24.696 -19 24 47.54 21.3G 661333 F51 C~2r7D 2013 08 09.48649 22 31 24.612 -19 24 48.27 21.1G 661333 F51 C~2r7D 2014 06 28.56154 22 43 46.663 -18 52 00.07 661333 F51 C~2r7D 2014 06 28.57342 22 43 46.627 -18 52 00.46 661333 F51 C~2r7D 2014 06 28.58529 22 43 46.625 -18 52 00.97 661333 F51 C~2r7D 2014 06 28.59718 22 43 46.589 -18 52 01.50 661333 F51 C~2r7D 2014 07 06.51923 22 43 28.767 -18 57 12.06 661333 F51 C~2r7D 2014 07 06.53180 22 43 28.732 -18 57 12.14 661333 F51 C~2r7D 2014 07 06.54441 22 43 28.683 -18 57 12.63 661333 F51 C~2r7D 2014 07 06.55698 22 43 28.660 -18 57 13.27 661333 F51 C~2r7D 2014 07 08.57209 22 43 23.056 -18 58 36.37 22.6G 661333 F51 C~2r7D 2014 07 27.54551 22 42 11.273 -19 12 40.35 22.4G 661333 F51 C~2r7D 2014 07 29.52427 22 42 02.045 -19 14 12.52 21.9G 661333 F51 C~2r7D 2014 07 30.53557 22 41 57.212 -19 14 59.73 23.2G 661333 F51 C~2r7D 2014 08 28.36781 22 39 17.620 -19 36 58.73 21.3G 661333 F51 C~2r7D 2014 08 28.37835 22 39 17.559 -19 36 59.19 20.8G 661333 F51 C~2r7D 2014 09 11.38630 22 37 54.319 -19 46 16.67 21.5G 661333 F51 C~2r7D 2014 09 18.38454 22 37 14.143 -19 50 18.86 661333 F51 C~2r7E 2014 09 18.39573 22 37 14.087 -19 50 19.05 21.9G 661333 F51 C~2r7E 2014 09 18.40693 22 37 14.031 -19 50 19.39 21.6G 661333 F51 C~2r7E 2014 09 18.41811 22 37 13.964 -19 50 19.75 22.2G 661333 F51 C~2r7E 2014 09 19.05793 22 37 10.39 -19 50 40.2 22.4V 661333 W84 C~2J8r 2014 09 19.12685 22 37 10.00 -19 50 42.4 661333 W84 C~2J8r 2014 09 19.23350 22 37 09.39 -19 50 45.9 661333 W84 C~2J8r 2014 09 20.34262 22 37 03.239 -19 51 21.16 22.0G 661333 F51 C~2r7E 2014 09 20.35652 22 37 03.162 -19 51 21.73 21.7G 661333 F51 C~2r7E 2014 09 20.36770 22 37 03.094 -19 51 22.02 21.9G 661333 F51 C~2r7E 2015 06 17.56924 22 53 16.363 -18 41 45.65 20.7G 661333 F51 C~2r7E 2015 06 20.57053 22 53 15.217 -18 43 20.38 22.4G 661333 F51 C~2r7E 2015 07 24.48295 22 51 53.161 -19 06 18.28 21.6G 661333 F51 C~2r7E 2015 07 24.49496 22 51 53.106 -19 06 18.92 22.4G 661333 F51 C~2r7E 2015 07 24.50693 22 51 53.067 -19 06 19.67 22.6G 661333 F51 C~2r7E 2015 07 24.51886 22 51 53.014 -19 06 20.01 22.0G 661333 F51 C~2r7E 2015 08 09.49572 22 50 38.072 -19 18 53.55 22.2G 661333 F51 C~2r7E 2015 08 10.48139 22 50 32.872 -19 19 40.31 22.4w 661333 F51 C~1VZw 2015 08 10.49329 22 50 32.820 -19 19 40.50 22.2w 661333 F51 C~1VZw 2015 08 10.50512 22 50 32.746 -19 19 41.70 22.3w 661333 F51 C~1VZw 2015 08 11.47332 22 50 27.631 -19 20 27.19 22.1G 661333 F51 C~2r7E 2015 08 11.48524 22 50 27.559 -19 20 27.81 21.6G 661333 F51 C~2r7E 2015 08 11.49716 22 50 27.504 -19 20 28.27 22.1G 661333 F51 C~2r7E 2015 08 11.50903 22 50 27.430 -19 20 28.88 22.0G 661333 F51 C~2r7E 2015 08 12.46687 22 50 22.313 -19 21 14.01 21.8G 661333 F51 C~2r7E 2015 08 12.47877 22 50 22.256 -19 21 14.67 21.9G 661333 F51 C~2r7E 2015 08 12.49068 22 50 22.183 -19 21 15.30 22.0G 661333 F51 C~2r7E 2015 08 12.50261 22 50 22.114 -19 21 15.81 21.5G 661333 F51 C~2r7E 2015 10 03.34279 22 45 29.023 -19 54 11.55 21.9G 661333 F51 C~2r7E 2016 07 05.52995 23 02 04.710 -18 47 25.20 23.3G 661333 F51 C~2r7E 2016 07 05.54025 23 02 04.682 -18 47 25.83 22.8G 661333 F51 C~2r7E 2016 07 05.55053 23 02 04.675 -18 47 26.19 22.4G 661333 F51 C~2r7E 2016 07 05.56082 23 02 04.642 -18 47 26.43 22.3G 661333 F51 C~2r7E 2016 07 17.55779 23 01 32.468 -18 56 02.19 22.6G 661333 F51 C~2r7E 2016 07 30.54293 23 00 42.337 -19 06 06.02 22.5G 661333 F51 C~2r7E 2016 07 30.55453 23 00 42.282 -19 06 06.64 22.4G 661333 F51 C~2r7E 2016 07 30.56611 23 00 42.242 -19 06 07.50 21.7G 661333 F51 C~2r7E 2016 07 30.57767 23 00 42.212 -19 06 07.68 22.0G 661333 F51 C~2r7E 2016 08 02.47592 23 00 29.118 -19 08 26.20 21.9G 661333 F51 C~2r7E 2016 08 02.48780 23 00 29.067 -19 08 26.84 22.5G 661333 F51 C~2r7E 2016 08 02.49965 23 00 29.007 -19 08 27.30 21.8G 661333 F51 C~2r7E 2016 08 02.51152 23 00 28.952 -19 08 27.89 22.0G 661333 F51 C~2r7E 2016 08 07.52714 23 00 04.871 -19 12 28.67 21.5G 661333 F51 C~2r7E 2016 08 07.53752 23 00 04.864 -19 12 28.79 21.9G 661333 F51 C~2r7E 2016 08 07.54786 23 00 04.788 -19 12 29.09 22.3G 661333 F51 C~2r7E 2016 08 07.55823 23 00 04.730 -19 12 30.03 22.8G 661333 F51 C~2r7E 2016 08 27.41420 22 58 16.698 -19 27 56.95 23.2G 661333 F51 C~2r7E 2016 08 27.43875 22 58 16.560 -19 27 58.18 22.2G 661333 F51 C~2r7E 2016 08 27.45101 22 58 16.481 -19 27 58.57 22.1G 661333 F51 C~2r7E 2017 09 13.43328 23 05 53.318 -19 32 42.29 22.3G 661333 F51 C~2r7E 2017 09 21.41185 23 05 07.601 -19 37 26.85 22.7G 661333 F51 C~2r7E 2017 09 21.42286 23 05 07.537 -19 37 26.97 22.8G 661333 F51 C~2r7E 2017 09 21.43377 23 05 07.494 -19 37 27.32 22.3G 661333 F51 C~2r7E 2017 09 21.44471 23 05 07.419 -19 37 27.51 22.5G 661333 F51 C~2r7E 2020 07 17.57142 23 36 57.868 -18 18 11.42 22.1w 661333 F51 C~3z1m 2020 07 17.57983 23 36 57.863 -18 18 11.79 21.9w 661333 F51 C~3z1m 2020 07 17.58824 23 36 57.846 -18 18 12.13 22.0w 661333 F51 C~3z1m 2020 07 17.59665 23 36 57.829 -18 18 12.73 22.1w 661333 F51 C~3z1m 2020 09 18.41865 23 32 11.976 -19 06 25.69 22.2w 661333 F51 C~47v9 2020 09 18.42936 23 32 11.919 -19 06 26.00 22.2w 661333 F51 C~47v9 2020 09 18.44005 23 32 11.843 -19 06 26.76 22.2w 661333 F51 C~47v9 2021 09 13.416771 23 41 19.132 -18 50 19.95 21.9w 661333 F51 C~52FZ 2021 09 13.427529 23 41 19.072 -18 50 20.38 21.7w 661333 F51 C~52FZ 2021 09 13.438248 23 41 19.030 -18 50 20.86 21.8w 661333 F51 C~52FZ 2021 09 13.448977 23 41 18.967 -18 50 21.26 22.2w 661333 F51 C~52FZ
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 0.11 0.00 0.18
2 0.0001 0.00 -0.02 0.00 0.12
3 0.0002 0.00 0.09 0.00 0.08
4 0.0027 0.00 0.09 0.00 -0.03
5 0.1366 0.00 -0.04 0.00 0.22
6 0.1368 0.00 0.14 0.00 0.12
7 0.1369 0.00 -0.13 0.00 0.01
8 0.9060 0.00 -0.14 0.00 0.11
9 0.9061 0.00 0.06 0.00 0.03
10 0.9062 0.00 -0.02 0.00 0.07
11 0.9086 0.00 -0.03 0.00 -0.04
12 0.9660 0.00 -0.09 0.00 0.06
13 0.9663 0.00 0.05 0.00 0.05
14 0.9664 0.00 0.03 0.00 0.12
15 1.7115 0.00 0.15 0.00 -0.06
16 1.7170 0.00 -0.27 0.00 -0.19
17 4.8461 0.00 0.13 0.00 -0.10
18 4.8462 0.00 0.15 0.00 -0.02
19 4.8516 0.00 -0.26 0.00 -0.78
20 6.9463 0.00 -0.09 0.00 0.15
21 6.9463 0.00 0.16 0.00 0.08
22 6.9463 0.00 0.08 0.00 -0.08
23 6.9464 0.00 0.09 0.00 -0.14
24 7.0392 0.00 0.04 0.00 -0.13
25 7.0393 0.00 0.03 0.00 0.16
26 8.0057 0.00 -0.02 0.00 -0.05
27 8.0058 0.00 0.06 0.00 -0.06
28 8.0058 0.00 0.16 0.00 -0.12
29 8.0058 0.00 0.00 0.00 0.04
30 8.9831 0.00 -0.16 0.00 0.19
31 8.9832 0.00 0.02 0.00 -0.06
32 8.9832 0.00 -0.02 0.00 0.02
33 8.9833 0.00 -0.06 0.00 -0.05
34 9.8678 0.00 0.11 0.00 0.01
35 9.8678 0.00 -0.08 0.00 0.06
36 9.8678 0.00 0.23 0.00 -0.00
37 9.8679 0.00 0.03 0.00 -0.09
38 9.8896 0.00 0.01 0.00 -0.31
39 9.8896 0.00 0.01 0.00 0.12
40 9.8896 0.00 -0.20 0.00 0.15
41 9.8897 0.00 -0.01 0.00 0.03
42 9.8952 0.00 0.14 0.00 0.13
43 9.9471 0.00 0.01 0.00 0.03
44 9.9526 0.00 0.12 0.00 0.03
45 9.9553 0.00 0.10 0.00 0.06
46 10.0343 0.00 -0.07 0.00 0.07
47 10.0343 0.00 -0.03 0.00 0.06
48 10.0726 0.00 0.05 0.00 0.10
49 10.0918 0.00 -0.13 0.00 -0.20
50 10.0918 0.00 -0.01 0.00 -0.03
51 10.0919 0.00 0.12 0.00 -0.00
52 10.0919 0.00 0.07 0.00 0.00
53 10.0936 0.00 0.02 0.00 -0.02
54 10.0938 0.00 0.06 0.00 0.01
55 10.0941 0.00 0.01 0.00 -0.09
56 10.0972 0.00 -0.02 0.00 0.03
57 10.0972 0.00 0.00 0.00 -0.10
58 10.0972 0.00 -0.07 0.00 -0.04
59 10.8370 0.00 0.03 0.00 -0.50
60 10.8452 0.00 -0.10 0.00 -0.03
61 10.9381 0.00 -0.02 0.00 0.13
62 10.9381 0.00 -0.09 0.00 0.05
63 10.9381 0.00 0.08 0.00 -0.15
64 10.9382 0.00 0.04 0.00 0.07
65 10.9819 0.00 0.36 0.00 0.07
66 10.9846 0.00 -0.13 0.00 -0.02
67 10.9846 0.00 0.05 0.00 0.36
68 10.9847 0.00 -0.10 0.00 -0.28
69 10.9873 0.00 0.06 0.00 0.01
70 10.9874 0.00 -0.04 0.00 -0.05
71 10.9874 0.00 0.10 0.00 0.05
72 10.9874 0.00 -0.04 0.00 0.00
73 10.9900 0.00 0.01 0.00 0.08
74 10.9901 0.00 0.13 0.00 -0.01
75 10.9901 0.00 0.02 0.00 -0.08
76 10.9901 0.00 -0.03 0.00 -0.03
77 11.1321 0.00 -0.26 0.00 -0.08
78 11.8882 0.00 -0.01 0.00 0.04
79 11.8883 0.00 -0.10 0.00 -0.17
80 11.8883 0.00 0.13 0.00 -0.11
81 11.8883 0.00 -0.03 0.00 0.07
82 11.9212 0.00 -0.08 0.00 -0.01
83 11.9567 0.00 -0.18 0.00 0.19
84 11.9567 0.00 -0.22 0.00 0.13
85 11.9568 0.00 -0.03 0.00 -0.18
86 11.9568 0.00 0.30 0.00 0.18
87 11.9647 0.00 -0.01 0.00 0.04
88 11.9648 0.00 0.06 0.00 -0.03
89 11.9648 0.00 0.01 0.00 0.08
90 11.9648 0.00 0.03 0.00 0.06
91 11.9786 0.00 -0.37 0.00 -0.34
92 11.9786 0.00 0.32 0.00 0.03
93 11.9786 0.00 -0.04 0.00 0.23
94 11.9787 0.00 -0.12 0.00 -0.22
95 12.0330 0.00 -0.05 0.00 0.01
96 12.0331 0.00 0.05 0.00 -0.13
97 12.0331 0.00 -0.05 0.00 0.03
98 13.0789 0.00 -0.09 0.00 -0.14
99 13.1008 0.00 -0.08 0.00 -0.15
100 13.1008 0.00 -0.09 0.00 0.10
101 13.1008 0.00 0.20 0.00 0.11
102 13.1009 0.00 0.02 0.00 0.28
103 15.9212 0.00 -0.08 0.00 0.04
104 15.9212 0.00 0.14 0.00 0.04
105 15.9212 0.00 0.18 0.00 0.08
106 15.9213 0.00 0.23 0.00 -0.15
107 16.0933 0.00 -0.13 0.00 0.10
108 16.0933 0.00 -0.05 0.00 0.19
109 16.0933 0.00 -0.26 0.00 -0.17
110 17.0789 0.00 -0.15 0.00 0.11
111 17.0789 0.00 -0.12 0.00 0.12
112 17.0789 0.00 0.17 0.00 0.08
113 17.0790 0.00 0.15 0.00 0.12
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.
661333 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 39.635 39.635 39.635 ecceobj 0.274 0.274 0.274 incobj 23.561 23.561 23.561 qmin 28.442 25.466 24.645 qmax 52.119 56.750 53.854 amean 40.015 39.267 38.929 amin 39.635 37.404 37.915 amax 40.451 42.886 40.450 emean 0.282 0.300 0.331 emin 0.274 0.223 0.273 emax 0.288 0.337 0.367 imean 21.937 19.494 18.019 imin 21.856 17.978 16.094 imax 22.109 22.109 22.109 excite_mean 0.468 0.450 0.455 fracstop 0.001 0.233 0.096 cjmean 2.809 2.823 2.813 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 152.9 178.0 177.5 kozaiamp 0.9 29.0 44.9