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: 528219 # Created Sun Dec 22 02:07:26 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 58 observations of 58 # Arc: 12.20y # First observation: 2008/05/31 # Last observation: 2020/08/12 # Chi-squared of fit: 70.53 DOF: 110 RMS: 0.19 # Min/Max residuals: -0.58 0.54 # Exact a, adot, b, bdot, g, gdot: -4.736385E-06 -1.091158E-02 1.588442E-05 3.429827E-02 3.216735E-02 -1.697481E-02 # 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 41.645433 -110.824457 -0.014609 0.670885 -0.754409 2454617.853094 # Heliocentric elements and errors Epoch: 2454618.5000 = 2008/06/01 Mean Anomaly: 323.37133 +/- 0.000 Argument of Peri: 132.90432 +/- 0.000 Long of Asc Node: 260.89194 +/- 0.000 Inclination: 103.36071 +/- 0.000 Eccentricity: 0.49285418 +/- 0.0000 Semi-Major Axis: 41.67440595 +/- 0.0000 Time of Perihelion: 2464616.6853 +/- 0.0 Perihelion: 21.13500077 +/- 0.0000 Aphelion: 62.21381112 +/- 0.0000 Period (y) 269.0372 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -8.60312097 +/- 0.0000 Ecliptic Y -22.66655299 +/- 0.0000 Ecliptic Z 20.65859158 +/- 0.0000 Ecliptic XDOT 0.00021177 +/- 0.0000 Ecliptic YDOT 0.00315332 +/- 0.0000 Ecliptic ZDOT 0.00122126 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 31.85248670 +/- 0.0000 Geocenter to KBO 31.08771906 +/- 0.0000 # Hcoef: 8.62
The following table shows the complete astrometric record for 528219. 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 (528219) followed by the observatory code and reference code for the source of the astrometry.
2008 05 31.35234 16 54 34.36 +19 22 53.0 23.7r 528219 568 Cz2846 2008 05 31.39302 16 54 34.02 +19 22 54.6 23.7r 528219 568 Cz2846 2008 05 31.43442 16 54 33.68 +19 22 56.0 23.8r 528219 568 Cz2846 2008 06 08.21175 16 53 30.53 +19 26 59.1 528219 807 Cz2846 2008 06 08.25591 16 53 30.18 +19 27 00.6 528219 807 Cz2846 2008 06 09.18104 16 53 22.68 +19 27 24.4 528219 807 Cz2846 2008 06 23.36633 16 51 29.67 +19 31 06.1 528219 696 Cz2846 2008 06 23.41398 16 51 29.31 +19 31 06.2 528219 696 Cz2846 2008 06 24.35315 16 51 22.08 +19 31 11.5 528219 696 Cz2846 2008 06 24.40592 16 51 21.67 +19 31 11.8 528219 696 Cz2846 2008 07 08.12345 16 49 41.23 +19 30 25.7 528219 I11 Cz4135 2008 07 08.13106 16 49 41.18 +19 30 25.6 528219 I11 Cz4135 2008 07 08.14480 16 49 41.10 +19 30 25.4 528219 I11 Cz4135 2008 07 08.14961 16 49 41.06 +19 30 25.4 528219 I11 Cz4135 2008 07 08.15439 16 49 41.02 +19 30 25.3 528219 I11 Cz4135 2008 08 04.26572 16 47 08.01 +19 18 37.6 528219 568 C~04FY 2008 08 04.30203 16 47 07.87 +19 18 36.0 528219 568 C~04FY 2008 08 04.33685 16 47 07.70 +19 18 34.9 528219 568 C~04FY 2008 09 24.22527 16 46 17.52 +18 36 08.7 528219 568 C66625 2008 09 24.24266 16 46 17.56 +18 36 07.9 528219 568 C66625 2009 03 27.59187 17 00 01.07 +20 08 18.8 528219 568 C~07fB 2009 03 27.61502 17 00 01.00 +20 08 21.3 528219 568 C~07fB 2009 04 23.38175 16 57 57.76 +20 48 35.0 528219 568 C~07fB 2009 04 23.42163 16 57 57.51 +20 48 38.3 528219 568 C~07fB 2009 04 23.62334 16 57 56.25 +20 48 54.7 528219 568 C~1QdV 2009 06 21.32155 16 50 18.39 +21 35 11.8 528219 695 C~07fB 2009 06 21.35944 16 50 18.09 +21 35 11.7 528219 695 C~07fB 2009 06 22.33251 16 50 10.26 +21 35 20.0 528219 695 C~07fB 2009 07 25.22511 16 46 21.80 +21 27 50.2 528219 675 C~1QdV 2009 07 25.22925 16 46 21.78 +21 27 50.2 528219 675 C~1QdV 2009 07 25.28231 16 46 21.49 +21 27 48.4 528219 675 C~1QdV 2009 07 25.28651 16 46 21.47 +21 27 48.3 528219 675 C~1QdV 2009 08 18.20530 16 44 43.75 +21 10 46.1 23.7r 528219 675 C~1QdV 2009 08 18.27687 16 44 43.54 +21 10 42.4 528219 675 C~1QdV 2009 08 19.18418 16 44 41.29 +21 09 56.0 528219 675 C~1QdV 2009 08 19.19920 16 44 41.25 +21 09 55.3 528219 675 C~1QdV 2009 09 13.22765 16 44 22.26 +20 46 42.2 528219 568 C~1QdV 2009 09 15.22930 16 44 24.40 +20 44 47.4 528219 568 C~1QdV 2010 03 20.47789 16 59 05.64 +22 01 25.7 528219 675 C~1QdV 2010 03 20.50891 16 59 05.60 +22 01 29.1 528219 675 C~1QdV 2013 07 06.00159 16 40 55.29 +30 36 53.6 528219 950 C~1QdV 2013 07 07.02146 16 40 46.86 +30 36 32.8 528219 950 C~1QdV 2013 07 07.06493 16 40 46.50 +30 36 31.9 528219 950 C~1QdV 2013 07 07.42118 16 40 43.57 +30 36 23.9 528219 568 C~1QdV 2013 07 08.41701 16 40 35.49 +30 36 01.7 528219 568 C~1QdV 2013 08 05.33645 16 37 34.23 +30 16 47.1 528219 568 C~1QdV 2013 09 02.25144 16 36 22.33 +29 46 02.0 528219 568 C~1QdV 2013 09 05.32279 16 36 21.81 +29 42 20.8 528219 568 C~1QdV 2013 10 06.24373 16 37 36.29 +29 06 41.1 528219 568 C~1QdV 2018 04 10.36556 16 43 14.657 +42 33 28.48 22.8R 528219 G37 C~2bGb 2018 04 10.42525 16 43 14.188 +42 33 36.25 528219 G37 C~2bGb 2018 04 10.47048 16 43 13.843 +42 33 42.21 528219 G37 C~2bGb 2018 04 18.392650 16 42 07.11 +42 50 18.7 23.3G 528219 705 C~2rXn 2018 04 19.403610 16 41 57.88 +42 52 19.7 21.9G 528219 705 C~2rXn 2018 04 19.422090 16 41 57.68 +42 52 21.7 22.6G 528219 705 C~2rXn 2020 08 12.158060 16 12 40.628 +49 02 50.91 22.7G 528219 G37 C~46lB 2020 08 12.199220 16 12 40.429 +49 02 47.00 528219 G37 C~46lB 2020 08 12.238750 16 12 40.250 +49 02 43.20 528219 G37 C~46lC
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 -0.10 0.00 0.22
2 0.0001 0.00 -0.20 0.00 0.33
3 0.0002 0.00 -0.20 0.00 0.22
4 0.0215 0.00 0.04 0.00 0.00
5 0.0216 0.00 0.24 0.00 0.36
6 0.0242 0.00 0.25 0.00 0.54
7 0.0630 0.00 -0.04 0.00 0.20
8 0.0631 0.00 0.14 0.00 0.01
9 0.0657 0.00 0.37 0.00 -0.21
10 0.0659 0.00 0.37 0.00 -0.16
11 0.1034 0.00 -0.15 0.00 0.16
12 0.1034 0.00 -0.11 0.00 0.15
13 0.1035 0.00 0.13 0.00 0.11
14 0.1035 0.00 0.04 0.00 0.17
15 0.1035 0.00 -0.06 0.00 0.13
16 0.1777 0.00 -0.12 0.00 -0.15
17 0.1778 0.00 0.15 0.00 -0.34
18 0.1779 0.00 -0.14 0.00 -0.09
19 0.3172 0.00 -0.07 0.00 -0.02
20 0.3173 0.00 -0.04 0.00 0.10
21 0.8220 0.00 -0.13 0.00 -0.26
22 0.8221 0.00 -0.12 0.00 0.01
23 0.8954 0.00 -0.02 0.00 -0.48
24 0.8955 0.00 -0.06 0.00 -0.44
25 0.8960 0.00 -0.06 0.00 -0.43
26 1.0567 0.00 0.09 0.00 -0.16
27 1.0568 0.00 0.23 0.00 -0.58
28 1.0595 0.00 0.31 0.00 0.05
29 1.1495 0.00 -0.13 0.00 -0.04
30 1.1496 0.00 -0.08 0.00 0.09
31 1.1497 0.00 0.02 0.00 0.04
32 1.1497 0.00 0.07 0.00 0.07
33 1.2152 0.00 0.07 0.00 -0.24
34 1.2154 0.00 -0.23 0.00 -0.26
35 1.2179 0.00 0.13 0.00 -0.12
36 1.2179 0.00 0.11 0.00 -0.04
37 1.2864 0.00 0.06 0.00 0.03
38 1.2919 0.00 0.08 0.00 0.23
39 1.8018 0.00 -0.39 0.00 0.10
40 1.8019 0.00 0.01 0.00 0.31
41 5.0969 0.00 0.12 0.00 0.20
42 5.0997 0.00 -0.04 0.00 0.16
43 5.0998 0.00 -0.02 0.00 0.20
44 5.1008 0.00 -0.25 0.00 -0.22
45 5.1035 0.00 -0.11 0.00 -0.06
46 5.1800 0.00 -0.26 0.00 0.07
47 5.2564 0.00 -0.13 0.00 -0.19
48 5.2648 0.00 -0.23 0.00 0.13
49 5.3495 0.00 -0.35 0.00 0.00
50 9.8590 0.00 -0.12 0.00 0.04
51 9.8592 0.00 -0.11 0.00 -0.02
52 9.8593 0.00 0.07 0.00 0.02
53 9.8810 0.00 -0.02 0.00 0.09
54 9.8838 0.00 0.46 0.00 0.06
55 9.8838 0.00 0.06 0.00 -0.14
56 12.1993 0.00 0.20 0.00 0.05
57 12.1994 0.00 0.05 0.00 0.00
58 12.1996 0.00 0.06 0.00 -0.08
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.
528219 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 41.810 41.810 41.811 ecceobj 0.493 0.493 0.493 incobj 103.558 103.558 103.558 qmin 17.112 17.394 17.341 qmax 66.648 66.561 66.892 amean 41.592 41.593 41.580 amin 40.907 41.264 41.220 amax 42.224 42.237 42.316 emean 0.507 0.541 0.530 emin 0.453 0.488 0.488 emax 0.586 0.581 0.583 imean 104.978 105.380 105.267 imin 104.097 104.661 104.661 imax 106.373 105.978 105.891 excite_mean 1.091 1.106 1.101 fracstop 0.650 0.077 0.058 cjmean 0.200 0.189 0.190 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 173.6 110.4 116.5 kozaiamp 180.0 24.8 16.2