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: 469505
# Created Fri Apr 19 01:07:55 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 91 observations of 91
# Arc: 20.07y
# First observation: 2003/03/31
# Last observation: 2023/04/24
# Chi-squared of fit: 95.39 DOF: 176 RMS: 0.18
# Min/Max residuals: -0.67 0.58
# Exact a, adot, b, bdot, g, gdot:
1.704190E-05 3.329730E-02 2.532918E-06 1.470505E-03 2.849631E-02 -1.159666E-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
2.286586 -149.102647 0.347156 0.037302 -0.934772 2452729.944633
# Heliocentric elements and errors
Epoch: 2452730.5000 = 2003/04/01
Mean Anomaly: 353.09606 +/- 0.000
Argument of Peri: 53.15679 +/- 0.000
Long of Asc Node: 169.18938 +/- 0.000
Inclination: 3.38272 +/- 0.000
Eccentricity: 0.25372355 +/- 0.0000
Semi-Major Axis: 48.06525239 +/- 0.0000
Time of Perihelion: 2455064.7106 +/- 0.0
Perihelion: 35.86996583 +/- 0.0000
Aphelion: 60.26053894 +/- 0.0000
Period (y) 333.2384 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -31.07096968 +/- 0.0000
Ecliptic Y -18.18420672 +/- 0.0000
Ecliptic Z 1.40023155 +/- 0.0000
Ecliptic XDOT 0.00173676 +/- 0.0000
Ecliptic YDOT -0.00268983 +/- 0.0000
Ecliptic ZDOT 0.00013691 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.02822702 +/- 0.0000
Geocenter to KBO 35.09230710 +/- 0.0000
# Hcoef: 6.14
The following table shows the complete astrometric record for 469505. 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 (469505) followed by the observatory code and reference code for the source of the astrometry.
2003 03 31.44389 13 58 18.54 -09 38 31.1 21.5R 469505 695 Ch8428 2003 04 01.41931 13 58 13.92 -09 38 03.4 469505 695 Ch8428 2003 04 01.48919 13 58 13.58 -09 38 01.4 469505 695 Ch8428 2003 04 21.11241 13 56 34.83 -09 28 27.1 18.4R 469505 304 Ch8428 2003 04 21.13343 13 56 34.72 -09 28 26.5 469505 304 Ch8428 2003 06 01.34151 13 53 22.60 -09 11 09.0 22.0R 469505 568 Ci1570 2003 06 02.28781 13 53 19.21 -09 10 51.9 469505 568 Ci1570 2003 06 02.34446 13 53 19.00 -09 10 50.8 469505 568 Ci1570 2004 02 17.21646 14 07 58.49 -10 27 55.0 21.8R 469505 493 Cs6949 2004 02 17.22339 14 07 58.48 -10 27 55.2 21.0R 469505 493 Cs6949 2004 02 17.23032 14 07 58.47 -10 27 55.1 21.2R 469505 493 Cs6949 2004 02 18.17155 14 07 57.21 -10 27 43.8 22.0R 469505 493 Cs6949 2004 02 18.20833 14 07 57.15 -10 27 43.2 21.7R 469505 493 Cs6949 2004 02 19.12183 14 07 55.83 -10 27 32.0 21.7R 469505 493 Cs6949 2004 02 19.17359 14 07 55.75 -10 27 31.4 21.9R 469505 493 Cs6949 2004 02 19.19794 14 07 55.71 -10 27 30.8 22.0R 469505 493 Cs6949 2004 03 15.41250 14 06 47.81 -10 19 43.6 21.6R 469505 695 Ck7395 2004 03 15.48722 14 06 47.52 -10 19 41.9 469505 695 Ck7395 2004 04 15.42473 14 04 25.30 -10 05 42.8 469505 675 Ck7395 2004 04 15.44770 14 04 25.18 -10 05 42.2 469505 675 Ck7395 2004 04 16.45247 14 04 20.02 -10 05 13.3 469505 675 Ck7395 2004 05 26.17289 14 01 05.42 -09 47 50.2 22.2R 469505 304 Ck8680 2004 05 26.20535 14 01 05.29 -09 47 49.4 469505 304 Ck8680 2007 06 15.99423 14 22 11.21 -11 23 35.9 469505 304 Cv1532 2007 06 16.06826 14 22 10.97 -11 23 34.7 469505 304 Cv1532 2011 06 02.32615 14 53 22.588 -13 32 52.84 22.0w 469505 F51 C~1vVE 2011 06 02.33944 14 53 22.536 -13 32 52.83 22.2w 469505 F51 C~1vVE 2011 06 02.35272 14 53 22.459 -13 32 52.43 21.9w 469505 F51 C~1vVE 2011 06 28.09098 14 51 42.664 -13 26 36.43 469505 309 C~0Wz9 2011 06 28.09203 14 51 42.663 -13 26 36.61 469505 309 C~0Wz9 2011 06 28.09300 14 51 42.654 -13 26 36.41 469505 309 C~0Wz9 2011 06 28.09440 14 51 42.650 -13 26 36.73 469505 309 C~0Wz9 2011 06 28.09545 14 51 42.622 -13 26 36.59 469505 309 C~0Wz9 2011 06 28.09642 14 51 42.651 -13 26 36.45 469505 309 C~0Wz9 2011 06 28.09841 14 51 42.612 -13 26 36.26 469505 309 C~0Wz9 2011 06 28.10047 14 51 42.622 -13 26 36.54 469505 309 C~0Wz9 2011 06 28.10247 14 51 42.633 -13 26 36.43 469505 309 C~0Wz9 2011 06 28.10432 14 51 42.617 -13 26 36.29 469505 309 C~0Wz9 2011 06 28.10537 14 51 42.619 -13 26 36.25 469505 309 C~0Wz9 2011 06 28.10635 14 51 42.608 -13 26 36.27 469505 309 C~0Wz9 2011 06 28.10843 14 51 42.613 -13 26 36.00 469505 309 C~0Wz9 2011 06 28.11098 14 51 42.610 -13 26 35.94 469505 309 C~0Wz9 2011 06 28.11346 14 51 42.599 -13 26 35.80 469505 309 C~0Wz9 2013 04 15.49818 15 12 50.623 -14 47 42.31 22.0w 469505 F51 C~1vVE 2013 04 15.51244 15 12 50.555 -14 47 42.24 21.8w 469505 F51 C~1vVE 2013 04 15.52667 15 12 50.479 -14 47 41.66 21.9w 469505 F51 C~1vVE 2013 04 15.54096 15 12 50.424 -14 47 41.43 22.2w 469505 F51 C~1vVE 2013 05 08.43408 15 10 51.857 -14 39 02.84 22.0w 469505 F51 C~0ro7 2013 05 08.44817 15 10 51.760 -14 39 02.34 21.7w 469505 F51 C@0611 2013 05 08.46225 15 10 51.687 -14 39 01.99 21.8w 469505 F51 C~1vVE 2013 05 08.47639 15 10 51.610 -14 39 01.65 21.8w 469505 F51 C@0611 2014 05 10.41617 15 18 26.746 -15 05 34.84 21.2i 469505 F51 C~1vVE 2014 05 10.42821 15 18 26.682 -15 05 34.42 21.2i 469505 F51 C~1vVE 2014 05 10.44019 15 18 26.612 -15 05 34.43 21.5i 469505 F51 C~1vVE 2014 05 20.38169 15 17 32.747 -15 02 02.22 21.7w 469505 F51 C~1vVE 2014 05 20.39301 15 17 32.688 -15 02 02.07 21.8w 469505 F51 C~1vVE 2014 05 20.40431 15 17 32.620 -15 02 01.60 21.9w 469505 F51 C~1vVE 2014 05 20.41560 15 17 32.563 -15 02 01.52 21.8w 469505 F51 C~1vVE 2014 07 28.26729 15 13 33.469 -14 49 37.71 22.4w 469505 F51 C~1vVE 2014 07 28.27818 15 13 33.468 -14 49 37.77 22.3w 469505 F51 C~1vVE 2014 07 28.28909 15 13 33.483 -14 49 37.85 22.1w 469505 F51 C~1vVE 2014 07 28.29998 15 13 33.478 -14 49 37.67 21.8w 469505 F51 C~1vVE 2015 05 24.42140 15 24 57.789 -15 27 04.46 22.1w 469505 F51 C~1vVE 2015 05 24.43291 15 24 57.737 -15 27 04.38 22.0w 469505 F51 C~1vVE 2015 05 24.44441 15 24 57.660 -15 27 04.20 22.1w 469505 F51 C~1vVE 2015 05 24.45589 15 24 57.620 -15 27 04.17 22.3w 469505 F51 C~1vVE 2015 05 25.37568 15 24 52.685 -15 26 45.81 21.2i 469505 F51 C~1vVE 2015 05 25.38700 15 24 52.645 -15 26 45.77 21.2i 469505 F51 C~1vVE 2015 05 25.39831 15 24 52.573 -15 26 45.59 21.6i 469505 F51 C~1vVE 2020 05 20.42829 16 04 15.658 -17 23 00.01 21.7w 469505 F51 C~3vHT 2020 05 20.43729 16 04 15.609 -17 22 59.87 21.8w 469505 F51 C~3vHT 2020 05 20.44630 16 04 15.566 -17 22 59.74 21.7w 469505 F51 C~3vHT 2020 05 20.45565 16 04 15.518 -17 22 59.62 21.7w 469505 F51 C~3vHT 2020 06 14.37046 16 02 01.174 -17 16 52.43 21.6w 469505 F51 C~3xlw 2020 06 14.38019 16 02 01.122 -17 16 52.25 21.7w 469505 F51 C~3xlw 2020 06 14.38989 16 02 01.076 -17 16 52.32 21.9w 469505 F51 C~3xlw 2020 06 14.39998 16 02 01.018 -17 16 52.04 21.7w 469505 F51 C~3xlw 2020 06 22.30265 16 01 22.540 -17 15 18.28 22.0w 469505 F51 C~3yIi 2020 06 22.31345 16 01 22.489 -17 15 18.09 22.0w 469505 F51 C~3yIi 2020 06 22.32422 16 01 22.432 -17 15 18.12 21.9w 469505 F51 C~3yIi 2020 06 22.33502 16 01 22.396 -17 15 17.90 22.0w 469505 F51 C~3yIi 2020 06 23.34608 16 01 17.693 -17 15 07.37 22.0w 469505 F51 C~3yIi 2020 06 23.35580 16 01 17.656 -17 15 07.09 22.1w 469505 F51 C~3yIi 2020 06 23.36557 16 01 17.611 -17 15 07.03 21.9w 469505 F51 C~3yIi 2021 06 09.378223 16 10 15.264 -17 37 37.92 21.5w 469505 F51 C~4tn7 2021 06 09.384704 16 10 15.235 -17 37 37.89 21.6w 469505 F51 C~4tn7 2021 06 09.391174 16 10 15.200 -17 37 37.57 21.8w 469505 F51 C~4tn7 2023 04 24.544365 16 29 47.676 -18 23 14.88 21.9w 469505 F52 C~6mhB 2023 04 24.553939 16 29 47.636 -18 23 14.63 21.8w 469505 F52 C~6mhB 2023 04 24.563500 16 29 47.609 -18 23 14.71 21.8w 469505 F52 C~6mhB 2023 04 24.573068 16 29 47.535 -18 23 14.52 21.9w 469505 F52 C~6mhB
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 0.16 0.00 -0.43
2 0.0027 0.00 0.27 0.00 -0.38
3 0.0029 0.00 0.24 0.00 -0.37
4 0.0566 0.00 0.33 0.00 0.14
5 0.0566 0.00 0.34 0.00 0.12
6 0.1695 0.00 -0.67 0.00 0.39
7 0.1721 0.00 -0.29 0.00 0.31
8 0.1722 0.00 -0.32 0.00 0.39
9 0.8837 0.00 -0.15 0.00 0.24
10 0.8837 0.00 -0.15 0.00 -0.04
11 0.8837 0.00 -0.16 0.00 -0.02
12 0.8863 0.00 -0.04 0.00 0.02
13 0.8864 0.00 -0.12 0.00 0.17
14 0.8889 0.00 -0.12 0.00 -0.02
15 0.8891 0.00 -0.09 0.00 -0.07
16 0.8891 0.00 -0.11 0.00 0.22
17 0.9582 0.00 0.08 0.00 -0.08
18 0.9584 0.00 0.03 0.00 -0.15
19 1.0431 0.00 0.35 0.00 0.14
20 1.0431 0.00 0.35 0.00 0.07
21 1.0459 0.00 0.58 0.00 -0.18
22 1.1546 0.00 -0.35 0.00 0.03
23 1.1547 0.00 -0.24 0.00 0.14
24 4.2096 0.00 -0.17 0.00 -0.32
25 4.2098 0.00 -0.12 0.00 -0.10
26 8.1722 0.00 0.01 0.00 0.06
27 8.1722 0.00 0.18 0.00 -0.19
28 8.1722 0.00 -0.01 0.00 -0.04
29 8.2427 0.00 0.19 0.00 -0.02
30 8.2427 0.00 0.22 0.00 -0.21
31 8.2427 0.00 0.13 0.00 -0.02
32 8.2427 0.00 0.13 0.00 -0.35
33 8.2427 0.00 -0.24 0.00 -0.22
34 8.2427 0.00 0.23 0.00 -0.09
35 8.2427 0.00 -0.26 0.00 0.08
36 8.2427 0.00 -0.02 0.00 -0.22
37 8.2427 0.00 0.24 0.00 -0.13
38 8.2427 0.00 0.08 0.00 -0.01
39 8.2427 0.00 0.16 0.00 0.02
40 8.2427 0.00 0.04 0.00 -0.01
41 8.2428 0.00 0.20 0.00 0.24
42 8.2428 0.00 0.27 0.00 0.28
43 8.2428 0.00 0.22 0.00 0.39
44 10.0426 0.00 -0.14 0.00 0.18
45 10.0426 0.00 -0.12 0.00 -0.06
46 10.0427 0.00 -0.21 0.00 0.20
47 10.0427 0.00 0.00 0.00 0.12
48 10.1054 0.00 0.05 0.00 -0.24
49 10.1054 0.00 -0.24 0.00 -0.06
50 10.1055 0.00 -0.17 0.00 -0.03
51 10.1055 0.00 -0.16 0.00 -0.01
52 11.1101 0.00 -0.03 0.00 -0.05
53 11.1102 0.00 0.00 0.00 0.10
54 11.1102 0.00 -0.05 0.00 -0.17
55 11.1374 0.00 -0.11 0.00 0.05
56 11.1374 0.00 -0.07 0.00 -0.03
57 11.1375 0.00 -0.16 0.00 0.20
58 11.1375 0.00 -0.09 0.00 0.05
59 11.3260 0.00 -0.16 0.00 -0.01
60 11.3260 0.00 -0.07 0.00 -0.04
61 11.3261 0.00 0.25 0.00 -0.09
62 11.3261 0.00 0.27 0.00 0.12
63 12.1478 0.00 -0.19 0.00 0.10
64 12.1478 0.00 -0.02 0.00 -0.04
65 12.1478 0.00 -0.24 0.00 -0.09
66 12.1479 0.00 0.10 0.00 -0.29
67 12.1504 0.00 -0.19 0.00 0.15
68 12.1504 0.00 0.14 0.00 -0.03
69 12.1505 0.00 -0.02 0.00 -0.07
70 17.1389 0.00 -0.09 0.00 -0.05
71 17.1389 0.00 -0.07 0.00 -0.06
72 17.1390 0.00 0.05 0.00 -0.07
73 17.1390 0.00 0.12 0.00 -0.10
74 17.2072 0.00 -0.02 0.00 -0.00
75 17.2072 0.00 -0.05 0.00 0.05
76 17.2072 0.00 0.01 0.00 -0.14
77 17.2073 0.00 -0.08 0.00 0.01
78 17.2289 0.00 0.05 0.00 0.15
79 17.2289 0.00 0.06 0.00 0.23
80 17.2290 0.00 -0.03 0.00 0.08
81 17.2290 0.00 0.21 0.00 0.18
82 17.2318 0.00 -0.07 0.00 -0.21
83 17.2318 0.00 0.06 0.00 -0.03
84 17.2318 0.00 0.07 0.00 -0.08
85 18.1928 0.00 -0.13 0.00 0.04
86 18.1929 0.00 -0.04 0.00 -0.01
87 18.1929 0.00 -0.03 0.00 0.22
88 20.0660 0.00 0.04 0.00 0.02
89 20.0660 0.00 0.07 0.00 0.14
90 20.0660 0.00 0.30 0.00 -0.06
91 20.0661 0.00 -0.19 0.00 -0.00
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.
469505 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 47.566 47.566 47.566 ecceobj 0.246 0.246 0.246 incobj 3.391 3.391 3.391 qmin 34.572 34.877 34.637 qmax 62.186 61.744 61.833 amean 47.796 47.797 47.796 amin 47.168 47.173 47.169 amax 48.558 48.536 48.556 emean 0.259 0.253 0.256 emin 0.237 0.235 0.237 emax 0.281 0.272 0.276 imean 3.232 3.320 3.403 imin 2.950 2.950 2.950 imax 3.482 3.664 3.735 excite_mean 0.265 0.260 0.263 fracstop 1.000 1.000 1.000 cjmean 3.060 3.063 3.061 libcent 0 179.7 257.9 180.0 libamp 0 147.0 69.1 147.6 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 151.5 158.3 176.7 kozaiamp 180.0 180.0 179.8