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: 667474
# Created Wed Dec 25 02:07:46 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 90 observations of 90
# Arc: 10.19y
# First observation: 2011/04/28
# Last observation: 2021/07/05
# Chi-squared of fit: 34.00 DOF: 174 RMS: 0.11
# Min/Max residuals: -0.40 0.24
# Exact a, adot, b, bdot, g, gdot:
1.448277E-05 1.930767E-02 -3.099901E-07 -8.381448E-04 2.162028E-02 2.383881E-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
2.268487 -82.470649 0.876424 0.019839 -0.501411 2455679.747046
# Heliocentric elements and errors
Epoch: 2455680.5000 = 2011/04/29
Mean Anomaly: 105.97829 +/- 0.000
Argument of Peri: 19.76613 +/- 0.000
Long of Asc Node: 139.14895 +/- 0.000
Inclination: 3.30728 +/- 0.000
Eccentricity: 0.10925523 +/- 0.0000
Semi-Major Axis: 44.94043768 +/- 0.0000
Time of Perihelion: 2423286.1878 +/- 0.0
Perihelion: 40.03045978 +/- 0.0000
Aphelion: 49.85041557 +/- 0.0000
Period (y) 301.2757 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 5.25751837 +/- 0.0000
Ecliptic Y -46.43035938 +/- 0.0000
Ecliptic Z 1.83078636 +/- 0.0000
Ecliptic XDOT 0.00246210 +/- 0.0000
Ecliptic YDOT 0.00002311 +/- 0.0000
Ecliptic ZDOT -0.00009407 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.76286259 +/- 0.0000
Geocenter to KBO 46.25280275 +/- 0.0000
# Hcoef: 7.01
The following table shows the complete astrometric record for 667474. 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 (667474) followed by the observatory code and reference code for the source of the astrometry.
2011 04 28.24628 18 32 14.39 -20 57 37.4 667474 268 C~0mPC 2011 04 28.24697 18 32 14.39 -20 57 37.4 667474 268 C~0mPC 2011 04 28.34316 18 32 14.20 -20 57 37.3 667474 268 C~0mPC 2011 04 28.41825 18 32 14.06 -20 57 37.2 667474 268 C~0mPC 2011 04 28.42020 18 32 14.06 -20 57 37.3 667474 268 C~0mPC 2011 04 30.32115 18 32 10.34 -20 57 36.1 667474 268 C~0mPC 2011 04 30.41312 18 32 10.14 -20 57 36.2 667474 268 C~0mPC 2011 05 01.31844 18 32 08.27 -20 57 35.5 667474 268 C~0mPC 2011 05 02.28342 18 32 06.18 -20 57 35.2 667474 268 C~0mPC 2011 05 02.28856 18 32 06.18 -20 57 35.2 667474 268 C~0mPC 2011 05 02.30851 18 32 06.13 -20 57 35.2 667474 268 C~0mPC 2011 05 02.32221 18 32 06.10 -20 57 35.2 667474 268 C~0mPC 2011 05 02.33338 18 32 06.07 -20 57 35.2 667474 268 C~0mPC 2011 05 02.35124 18 32 06.03 -20 57 35.2 667474 268 C~0mPC 2011 05 03.28524 18 32 03.95 -20 57 34.9 667474 268 C~0mPC 2011 05 03.29159 18 32 03.94 -20 57 34.9 667474 268 C~0mPC 2011 05 03.30873 18 32 03.89 -20 57 34.9 667474 268 C~0mPC 2011 05 03.32932 18 32 03.84 -20 57 34.9 667474 268 C~0mPC 2011 05 03.34419 18 32 03.81 -20 57 34.9 667474 268 C~0mPC 2011 05 03.36010 18 32 03.78 -20 57 34.9 667474 268 C~0mPC 2011 05 03.36568 18 32 03.76 -20 57 34.9 667474 268 C~0mPC 2011 05 27.26022 18 30 49.65 -20 57 52.8 667474 268 C~0mPC 2011 05 27.30855 18 30 49.46 -20 57 52.9 667474 268 C~0mPC 2011 05 28.25106 18 30 45.86 -20 57 54.7 667474 268 C~0mPC 2011 05 28.28379 18 30 45.72 -20 57 54.5 667474 268 C~0mPC 2011 05 28.31437 18 30 45.60 -20 57 54.7 667474 268 C~0mPC 2011 05 28.34773 18 30 45.47 -20 57 54.6 667474 268 C~0mPC 2011 05 28.37857 18 30 45.34 -20 57 54.7 667474 268 C~0mPC 2011 05 29.54954 18 30 40.76 -20 57 57.4 667474 266 C~0mPC 2011 05 29.56900 18 30 40.71 -20 57 56.9 667474 266 C~0mPC 2011 05 30.42203 18 30 37.34 -20 57 58.7 667474 266 C~0mPC 2011 05 30.47860 18 30 37.12 -20 57 58.8 667474 266 C~0mPC 2011 05 30.48977 18 30 37.07 -20 57 58.8 667474 266 C~0mPC 2011 05 31.20533 18 30 34.22 -20 58 00.1 667474 268 C~0mPC 2011 05 31.27397 18 30 33.94 -20 58 00.2 667474 268 C~0mPC 2011 05 31.34517 18 30 33.65 -20 58 00.4 667474 268 C~0mPC 2011 06 01.51361 18 30 28.95 -20 58 02.9 667474 266 C~0mPC 2011 06 01.53319 18 30 28.87 -20 58 02.9 667474 266 C~0mPC 2011 06 04.10625 18 30 18.28 -20 58 08.4 667474 268 C~0mPC 2011 07 01.08124 18 28 16.85 -20 59 31.7 667474 269 C~0mPC 2011 07 01.09756 18 28 16.77 -20 59 31.8 667474 269 C~0mPC 2011 07 01.10007 18 28 16.77 -20 59 31.8 667474 269 C~0mPC 2011 07 01.18443 18 28 16.35 -20 59 32.1 667474 269 C~0mPC 2011 07 01.18502 18 28 16.35 -20 59 32.1 667474 269 C~0mPC 2011 07 01.26959 18 28 15.96 -20 59 32.5 24.5R 667474 269 C~0mPC 2011 07 01.27016 18 28 15.96 -20 59 32.5 667474 269 C~0mPC 2011 07 02.28855 18 28 11.25 -20 59 36.4 667474 266 C~0mPC 2011 07 02.32100 18 28 11.10 -20 59 36.5 667474 266 C~0mPC 2011 07 02.35039 18 28 10.96 -20 59 36.7 667474 266 C~0mPC 2011 07 02.37545 18 28 10.85 -20 59 36.8 667474 266 C~0mPC 2011 07 02.41278 18 28 10.67 -20 59 36.9 667474 266 C~0mPC 2011 07 02.44216 18 28 10.52 -20 59 37.0 667474 266 C~0mPC 2011 08 29.06569 18 24 41.06 -21 03 46.4 667474 269 C~0mPC 2011 08 29.12961 18 24 40.92 -21 03 46.4 667474 269 C~0mPC 2012 04 20.32039 18 37 08.59 -20 56 39.1 667474 268 C~0mPC 2012 04 20.32108 18 37 08.59 -20 56 39.1 667474 268 C~0mPC 2012 04 20.36175 18 37 08.54 -20 56 39.1 667474 268 C~0mPC 2012 04 20.36290 18 37 08.53 -20 56 39.2 667474 268 C~0mPC 2012 04 20.40652 18 37 08.48 -20 56 38.9 667474 268 C~0mPC 2012 04 20.40822 18 37 08.47 -20 56 39.0 667474 268 C~0mPC 2012 04 21.31792 18 37 07.38 -20 56 38.0 667474 268 C~0mPC 2012 04 21.32330 18 37 07.38 -20 56 37.9 667474 268 C~0mPC 2012 04 21.36949 18 37 07.31 -20 56 37.9 667474 268 C~0mPC 2012 04 21.37086 18 37 07.31 -20 56 37.9 667474 268 C~0mPC 2012 04 21.37979 18 37 07.29 -20 56 37.9 667474 268 C~0mPC 2012 04 21.40780 18 37 07.25 -20 56 37.8 667474 268 C~0mPC 2012 04 21.40842 18 37 07.25 -20 56 37.8 667474 268 C~0mPC 2014 06 25.39596 18 42 59.419 -20 55 33.85 667474 266 C~2Gt7 2014 06 25.42877 18 42 59.270 -20 55 33.96 667474 266 C~2Gt7 2014 06 25.44300 18 42 59.195 -20 55 34.08 667474 266 C~2Gt7 2014 06 25.49307 18 42 58.964 -20 55 34.27 667474 266 C~2Gt7 2014 06 25.51719 18 42 58.853 -20 55 34.40 667474 266 C~2Gt7 2014 06 25.53618 18 42 58.766 -20 55 34.50 667474 266 C~2Gt7 2014 06 27.36077 18 42 50.388 -20 55 43.66 667474 266 C~2Gt7 2014 06 27.37167 18 42 50.341 -20 55 43.69 667474 266 C~2Gt7 2017 07 20.25325 18 55 12.713 -20 50 26.36 23.5r 667474 266 C~7ued 2017 07 20.39364 18 55 12.086 -20 50 27.38 23.5r 667474 266 C~7ued 2017 07 20.53088 18 55 11.474 -20 50 28.32 23.5r 667474 266 C~7ued 2017 07 21.24888 18 55 08.332 -20 50 33.20 22.8r 667474 266 C~7ued 2017 07 21.41126 18 55 07.610 -20 50 34.37 22.8r 667474 266 C~7ued 2017 07 21.54551 18 55 07.015 -20 50 35.29 22.8r 667474 266 C~7ued 2020 05 30.44075 19 12 46.049 -20 32 40.95 23.6r 667474 266 C~7ued 2020 05 30.53044 19 12 45.737 -20 32 41.41 23.6r 667474 266 C~7ued 2020 05 30.61862 19 12 45.429 -20 32 41.85 23.6r 667474 266 C~7ued 2020 06 01.43269 19 12 39.165 -20 32 51.23 24.0r 667474 266 C~7ued 2020 06 01.47325 19 12 39.020 -20 32 51.45 24.0r 667474 266 C~7ued 2020 06 01.60571 19 12 38.544 -20 32 52.15 24.0r 667474 266 C~7ued 2021 07 05.34555 19 14 56.500 -20 31 49.30 24.1r 667474 266 C~7ued 2021 07 05.39261 19 14 56.284 -20 31 49.71 24.1r 667474 266 C~7ued 2021 07 05.43531 19 14 56.088 -20 31 50.08 24.1r 667474 266 C~7ued
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 -0.08 0.00 -0.07
2 0.0000 0.00 -0.06 0.00 -0.07
3 0.0003 0.00 -0.11 0.00 -0.02
4 0.0005 0.00 -0.01 0.00 0.03
5 0.0005 0.00 0.05 0.00 -0.07
6 0.0057 0.00 0.04 0.00 -0.03
7 0.0059 0.00 -0.04 0.00 -0.17
8 0.0084 0.00 0.06 0.00 0.10
9 0.0111 0.00 -0.13 0.00 0.01
10 0.0111 0.00 0.04 0.00 0.01
11 0.0111 0.00 -0.03 0.00 0.01
12 0.0112 0.00 -0.02 0.00 0.01
13 0.0112 0.00 -0.08 0.00 0.00
14 0.0112 0.00 -0.08 0.00 -0.00
15 0.0138 0.00 -0.03 0.00 0.01
16 0.0138 0.00 0.04 0.00 0.01
17 0.0139 0.00 -0.11 0.00 0.00
18 0.0139 0.00 -0.13 0.00 0.00
19 0.0140 0.00 -0.06 0.00 -0.00
20 0.0140 0.00 0.05 0.00 -0.01
21 0.0140 0.00 -0.05 0.00 -0.01
22 0.0794 0.00 -0.11 0.00 -0.05
23 0.0796 0.00 -0.14 0.00 -0.07
24 0.0821 0.00 0.14 0.00 -0.23
25 0.0822 0.00 -0.03 0.00 0.03
26 0.0823 0.00 -0.02 0.00 -0.11
27 0.0824 0.00 0.00 0.00 0.04
28 0.0825 0.00 -0.12 0.00 -0.01
29 0.0857 0.00 -0.36 0.00 -0.40
30 0.0858 0.00 0.06 0.00 0.14
31 0.0881 0.00 -0.12 0.00 -0.04
32 0.0882 0.00 0.01 0.00 -0.02
33 0.0883 0.00 -0.06 0.00 0.00
34 0.0902 0.00 -0.05 0.00 -0.04
35 0.0904 0.00 -0.05 0.00 0.00
36 0.0906 0.00 -0.03 0.00 -0.06
37 0.0938 0.00 0.15 0.00 -0.00
38 0.0939 0.00 0.17 0.00 0.04
39 0.1009 0.00 0.01 0.00 -0.00
40 0.1748 0.00 0.00 0.00 0.01
41 0.1748 0.00 -0.05 0.00 -0.03
42 0.1748 0.00 0.13 0.00 -0.02
43 0.1751 0.00 -0.20 0.00 0.01
44 0.1751 0.00 -0.15 0.00 0.01
45 0.1753 0.00 -0.02 0.00 -0.08
46 0.1753 0.00 0.02 0.00 -0.07
47 0.1781 0.00 0.10 0.00 0.04
48 0.1782 0.00 0.14 0.00 0.07
49 0.1782 0.00 0.11 0.00 -0.01
50 0.1783 0.00 0.24 0.00 -0.01
51 0.1784 0.00 0.18 0.00 0.04
52 0.1785 0.00 0.01 0.00 0.05
53 0.3363 0.00 0.16 0.00 -0.37
54 0.3364 0.00 -0.05 0.00 -0.11
55 0.9804 0.00 0.09 0.00 0.06
56 0.9804 0.00 0.10 0.00 0.06
57 0.9805 0.00 0.11 0.00 0.02
58 0.9805 0.00 -0.02 0.00 -0.08
59 0.9806 0.00 0.05 0.00 0.16
60 0.9806 0.00 -0.07 0.00 0.06
61 0.9831 0.00 0.08 0.00 -0.00
62 0.9831 0.00 0.19 0.00 0.09
63 0.9832 0.00 0.06 0.00 0.05
64 0.9832 0.00 0.08 0.00 0.04
65 0.9833 0.00 -0.04 0.00 0.03
66 0.9833 0.00 -0.08 0.00 0.10
67 0.9833 0.00 -0.06 0.00 0.10
68 3.1599 0.00 0.16 0.00 0.12
69 3.1600 0.00 0.23 0.00 0.18
70 3.1600 0.00 0.10 0.00 0.13
71 3.1602 0.00 0.14 0.00 0.18
72 3.1602 0.00 0.16 0.00 0.17
73 3.1603 0.00 0.18 0.00 0.16
74 3.1653 0.00 0.11 0.00 0.12
75 3.1653 0.00 0.17 0.00 0.15
76 6.2286 0.00 -0.11 0.00 -0.08
77 6.2290 0.00 -0.10 0.00 -0.09
78 6.2294 0.00 -0.09 0.00 -0.08
79 6.2314 0.00 -0.31 0.00 0.11
80 6.2318 0.00 -0.32 0.00 0.11
81 6.2322 0.00 -0.31 0.00 0.10
82 9.0902 0.00 0.03 0.00 -0.04
83 9.0904 0.00 0.03 0.00 -0.04
84 9.0907 0.00 0.02 0.00 -0.04
85 9.0957 0.00 0.07 0.00 -0.07
86 9.0958 0.00 0.08 0.00 -0.07
87 9.0961 0.00 0.08 0.00 -0.07
88 10.1878 0.00 0.00 0.00 -0.06
89 10.1879 0.00 -0.00 0.00 -0.06
90 10.1881 0.00 -0.00 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.
667474 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.761 44.761 44.761 ecceobj 0.110 0.110 0.110 incobj 3.308 3.308 3.308 qmin 39.189 39.192 39.178 qmax 51.177 51.134 51.204 amean 45.012 45.012 45.011 amin 44.644 44.636 44.635 amax 45.418 45.419 45.420 emean 0.112 0.112 0.112 emin 0.097 0.096 0.097 emax 0.127 0.126 0.127 imean 2.415 2.415 2.415 imin 1.738 1.740 1.737 imax 3.146 3.146 3.144 excite_mean 0.119 0.119 0.119 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 190.4 190.3 190.5 kozaiamp 180.0 179.9 180.0