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: 385201 # Created Sat Apr 20 01:07:50 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 74 observations of 74 # Arc: 19.12y # First observation: 1999/09/07 # Last observation: 2018/10/20 # Chi-squared of fit: 126.68 DOF: 142 RMS: 0.23 # Min/Max residuals: -0.86 0.88 # Exact a, adot, b, bdot, g, gdot: 1.445050E-05 2.067166E-02 -2.114970E-06 -3.001325E-03 2.275455E-02 1.505227E-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 -9.399731 8.643998 0.413697 -0.149078 -0.899168 2451429.011913 # Heliocentric elements and errors Epoch: 2451428.5000 = 1999/09/07 Mean Anomaly: 113.40512 +/- 0.000 Argument of Peri: 107.85441 +/- 0.000 Long of Asc Node: 140.58714 +/- 0.000 Inclination: 12.39560 +/- 0.000 Eccentricity: 0.06834664 +/- 0.0000 Semi-Major Axis: 43.51096956 +/- 0.0000 Time of Perihelion: 2418404.7253 +/- 0.0 Perihelion: 40.53714102 +/- 0.0000 Aphelion: 46.48479810 +/- 0.0000 Period (y) 287.0162 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.83554438 +/- 0.0000 Ecliptic Y 6.24684099 +/- 0.0000 Ecliptic Z -7.17760993 +/- 0.0000 Ecliptic XDOT -0.00025956 +/- 0.0000 Ecliptic YDOT 0.00248529 +/- 0.0000 Ecliptic ZDOT -0.00038579 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.85635470 +/- 0.0000 Geocenter to KBO 43.94725117 +/- 0.0000 # Hcoef: 6.42
The following table shows the complete astrometric record for 385201. 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 (385201) followed by the observatory code and reference code for the source of the astrometry.
1999 09 07.51117 00 46 34.72 -05 12 47.8 22.7R 385201 568 Ca9937 1999 09 07.55015 00 46 34.56 -05 12 48.6 22.6R 385201 568 Ca9937 1999 09 07.59142 00 46 34.41 -05 12 50.2 22.8R 385201 568 Ca9937 1999 09 09.58802 00 46 27.11 -05 13 51.4 22.9R 385201 568 Ca9937 1999 09 09.59815 00 46 27.07 -05 13 51.8 23.1R 385201 568 Ca9937 1999 10 09.52946 00 44 25.36 -05 28 36.5 23.0R 385201 568 Ca9937 1999 10 10.36662 00 44 21.85 -05 28 59.0 22.9R 385201 568 Ca9937 1999 10 10.40770 00 44 21.67 -05 29 00.2 22.5R 385201 568 Ca9937 1999 11 10.42344 00 42 22.52 -05 39 36.8 22.8R 385201 568 Ca9937 1999 11 10.45826 00 42 22.40 -05 39 37.3 23.0R 385201 568 Ca9937 2000 08 28.49536 00 51 44.75 -04 49 25.6 22.9R 385201 568 Cb9109 2000 08 28.55058 00 51 44.59 -04 49 27.4 22.9R 385201 568 Cb9109 2000 08 29.54245 00 51 41.44 -04 49 57.2 22.9R 385201 568 Cb9109 2000 08 29.57883 00 51 41.34 -04 49 57.9 22.9R 385201 568 Cb9109 2000 12 27.24300 00 45 40.145 -05 21 09.27 385201 568 Cl2529 2000 12 28.25263 00 45 40.385 -05 20 55.16 22.9R 385201 568 Cl2529 2002 11 06.44491 00 56 27.58 -04 42 58.2 22.6R 385201 568 Cl8251 2002 11 07.34025 00 56 24.33 -04 43 12.8 385201 568 Cl8251 2002 11 07.38084 00 56 24.20 -04 43 13.1 385201 568 Cl8251 2005 10 06.26674 01 12 16.46 -03 34 52.4 22.3R 385201 250 S~06AL 2005 10 06.27345 01 12 16.43 -03 34 52.6 385201 250 S~06AL 2005 10 06.28016 01 12 16.40 -03 34 52.8 385201 250 S~06AL 2008 10 31.307567 01 24 07.52 -02 48 28.2 385201 645 C~1Q2f 2008 10 31.308396 01 24 07.52 -02 48 28.2 385201 645 C~1Q2f 2008 10 31.310884 01 24 07.51 -02 48 28.3 385201 645 C~1Q2f 2009 01 16.138895 01 21 41.26 -02 48 50.8 385201 645 C~1Q2f 2009 01 16.139724 01 21 41.26 -02 48 50.8 385201 645 C~1Q2f 2009 01 16.142212 01 21 41.27 -02 48 50.8 385201 645 C~1Q2f 2013 10 05.41001 01 48 28.07 -01 02 23.6 22.2R 385201 695 C~0zdB 2013 10 05.47352 01 48 27.82 -01 02 25.3 385201 695 C~0zdB 2013 10 06.41862 01 48 23.97 -01 02 51.8 385201 695 C~0zdB 2014 10 01.33657 01 53 12.995 -00 41 26.26 23.3r 385201 W84 C~51nt 2014 10 01.33657 01 53 13.00 -00 41 26.3 23.5r 385201 W84 C~3hZv 2014 10 21.28753 01 51 50.947 -00 50 22.29 22.6r 385201 W84 C~51nt 2014 10 21.28753 01 51 50.95 -00 50 22.3 22.6r 385201 W84 C~3hZv 2014 10 21.28890 01 51 50.945 -00 50 22.32 22.7i 385201 W84 C~51nt 2014 10 21.28890 01 51 50.94 -00 50 22.3 22.7i 385201 W84 C~3hZv 2015 01 15.04625 01 48 03.998 -00 58 00.75 22.5z 385201 W84 C~51nt 2015 01 15.04625 01 48 04.00 -00 58 00.8 22.6z 385201 W84 C~3hZv 2015 01 16.04263 01 48 04.322 -00 57 43.50 22.7z 385201 W84 C~51nt 2015 08 24.370729 01 59 29.76 -00 05 09.8 23.2r 385201 W84 C~35Y2 2015 08 24.371250 01 59 29.77 -00 05 09.8 385201 W84 C~3hZv 2015 08 24.37126 01 59 29.770 -00 05 09.90 23.0r 385201 W84 C~51nt 2015 08 24.372106 01 59 29.76 -00 05 09.8 22.6i 385201 W84 C~35Y2 2015 08 24.37263 01 59 29.767 -00 05 09.98 22.6i 385201 W84 C~51nt 2015 08 24.374005 01 59 29.76 -00 05 10.1 385201 W84 C~3hZv 2015 11 20.13336 01 54 16.793 -00 41 09.02 22.8i 385201 W84 C~51nt 2015 11 20.13336 01 54 16.79 -00 41 09.0 22.9i 385201 W84 C~3hZv 2015 11 20.13475 01 54 16.787 -00 41 09.17 22.7z 385201 W84 C~51nt 2015 12 18.08459 01 52 53.335 -00 43 57.62 22.4z 385201 W84 C~51nt 2015 12 18.13287 01 52 53.218 -00 43 57.33 22.8i 385201 W84 C~51nt 2015 12 18.13287 01 52 53.22 -00 43 57.3 23.1i 385201 W84 C~3hZv 2016 01 12.061435 01 52 25.45 -00 40 24.2 385201 W84 C~3hZv 2016 01 12.06145 01 52 25.463 -00 40 24.31 22.5r 385201 W84 C~51nt 2016 01 12.06145 01 52 25.46 -00 40 24.3 22.6r 385201 W84 C~3hZv 2016 01 12.062813 01 52 25.44 -00 40 24.3 385201 W84 C~3hZv 2016 01 12.06283 01 52 25.466 -00 40 24.24 23.6g 385201 W84 C~51nt 2016 09 10.293391 02 03 14.50 +00 05 52.1 22.9r 385201 W84 C~35Y2 2016 11 05.23333 01 59 39.030 -00 18 24.38 22.3i 385201 W84 C~51nt 2016 11 05.23333 01 59 39.03 -00 18 24.4 22.8i 385201 W84 C~3hZv 2016 11 25.105856 01 58 21.57 -00 23 31.1 23.0i 385201 W84 C~35Y2 2016 11 25.10638 01 58 21.580 -00 23 31.26 23.1i 385201 W84 C~51nt 2016 11 28.12027 01 58 11.162 -00 24 01.42 22.9i 385201 W84 C~51nt 2016 11 28.12027 01 58 11.16 -00 24 01.4 22.9i 385201 W84 C~3hZv 2016 11 28.12449 01 58 11.151 -00 24 01.42 23.2r 385201 W84 C~51nt 2016 11 28.12449 01 58 11.15 -00 24 01.4 23.2r 385201 W84 C~3hZv 2016 11 28.15220 01 58 11.044 -00 24 01.51 22.4z 385201 W84 C~51nt 2016 11 30.146042 01 58 04.40 -00 24 18.6 22.2z 385201 W84 C~35Y2 2016 11 30.14657 01 58 04.408 -00 24 18.80 22.8z 385201 W84 C~51nt 2017 10 29.23867 02 04 35.376 +00 02 57.07 22.8z 385201 W84 C~51nt 2017 11 16.16122 02 03 21.077 -00 02 44.98 23.2r 385201 W84 C~51nt 2017 11 16.162083 02 03 21.06 -00 02 45.0 22.6i 385201 W84 C~35Y2 2017 11 16.16261 02 03 21.058 -00 02 45.03 22.4i 385201 W84 C~51nt 2018 10 20.20080 02 09 40.359 +00 25 25.58 22.9z 385201 W84 C~51nt
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 -0.25 0.00 0.40
3 0.0002 0.00 -0.22 0.00 0.06
4 0.0057 0.00 0.09 0.00 0.34
5 0.0057 0.00 0.06 0.00 0.25
6 0.0877 0.00 0.30 0.00 0.04
7 0.0900 0.00 0.29 0.00 -0.15
8 0.0901 0.00 0.23 0.00 -0.26
9 0.1750 0.00 0.09 0.00 -0.26
10 0.1751 0.00 0.01 0.00 -0.30
11 0.9746 0.00 -0.19 0.00 0.33
12 0.9748 0.00 0.06 0.00 0.17
13 0.9775 0.00 -0.29 0.00 -0.05
14 0.9776 0.00 -0.01 0.00 0.34
15 1.3052 0.00 -0.15 0.00 0.88
16 1.3080 0.00 -0.02 0.00 0.86
17 3.1648 0.00 0.13 0.00 -0.32
18 3.1672 0.00 -0.58 0.00 -0.51
19 3.1673 0.00 -0.31 0.00 -0.17
20 6.0801 0.00 0.09 0.00 -0.83
21 6.0801 0.00 0.06 0.00 -0.85
22 6.0801 0.00 0.03 0.00 -0.86
23 9.1493 0.00 -0.03 0.00 -0.17
24 9.1493 0.00 0.02 0.00 -0.15
25 9.1493 0.00 0.03 0.00 -0.20
26 9.3597 0.00 0.31 0.00 -0.15
27 9.3597 0.00 0.29 0.00 -0.17
28 9.3597 0.00 0.41 0.00 -0.22
29 14.0778 0.00 0.17 0.00 0.38
30 14.0779 0.00 0.31 0.00 0.46
31 14.0805 0.00 -0.10 0.00 0.36
32 15.0659 0.00 0.21 0.00 -0.03
33 15.0659 0.00 0.13 0.00 0.01
34 15.1205 0.00 0.04 0.00 0.05
35 15.1205 0.00 -0.01 0.00 0.06
36 15.1205 0.00 -0.02 0.00 0.09
37 15.1205 0.00 0.05 0.00 0.07
38 15.3553 0.00 0.05 0.00 0.10
39 15.3553 0.00 0.02 0.00 0.15
40 15.3581 0.00 -0.15 0.00 0.01
41 15.9613 0.00 -0.12 0.00 0.11
42 15.9613 0.00 0.04 0.00 0.12
43 15.9613 0.00 0.04 0.00 0.02
44 15.9613 0.00 -0.09 0.00 0.14
45 15.9613 0.00 0.03 0.00 -0.02
46 15.9613 0.00 -0.04 0.00 -0.11
47 16.2016 0.00 -0.00 0.00 -0.01
48 16.2016 0.00 0.04 0.00 -0.03
49 16.2016 0.00 0.03 0.00 -0.16
50 16.2781 0.00 0.05 0.00 -0.25
51 16.2782 0.00 -0.12 0.00 -0.01
52 16.2782 0.00 -0.15 0.00 -0.04
53 16.3465 0.00 -0.10 0.00 0.05
54 16.3465 0.00 0.05 0.00 -0.05
55 16.3465 0.00 0.09 0.00 -0.06
56 16.3465 0.00 -0.25 0.00 -0.07
57 16.3465 0.00 0.14 0.00 -0.01
58 17.0097 0.00 -0.06 0.00 0.11
59 17.1628 0.00 -0.07 0.00 0.03
60 17.1628 0.00 -0.07 0.00 0.05
61 17.2172 0.00 -0.11 0.00 0.15
62 17.2172 0.00 0.07 0.00 -0.00
63 17.2255 0.00 0.07 0.00 -0.07
64 17.2255 0.00 0.04 0.00 -0.05
65 17.2255 0.00 0.11 0.00 -0.01
66 17.2255 0.00 0.12 0.00 -0.03
67 17.2256 0.00 -0.05 0.00 0.13
68 17.2310 0.00 -0.19 0.00 0.32
69 17.2310 0.00 -0.04 0.00 0.13
70 18.1430 0.00 0.02 0.00 -0.02
71 18.1921 0.00 0.07 0.00 -0.04
72 18.1921 0.00 -0.13 0.00 -0.05
73 18.1921 0.00 -0.13 0.00 -0.07
74 19.1176 0.00 -0.00 0.00 -0.09
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.
385201 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.486 43.486 43.486 ecceobj 0.068 0.068 0.068 incobj 12.400 12.400 12.400 qmin 39.609 39.608 39.609 qmax 47.036 47.019 47.030 amean 43.225 43.225 43.225 amin 42.890 42.889 42.891 amax 43.573 43.578 43.575 emean 0.065 0.065 0.065 emin 0.052 0.052 0.052 emax 0.080 0.080 0.080 imean 11.346 11.346 11.346 imin 10.799 10.799 10.799 imax 12.029 12.028 12.030 excite_mean 0.207 0.207 0.207 fracstop 1.000 1.000 1.000 cjmean 3.041 3.041 3.041 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 183.6 183.4 183.5 kozaiamp 179.9 179.9 180.0