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: 385458
# Created Fri Nov 22 02:07:03 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 79 observations of 79
# Arc: 18.02y
# First observation: 2003/09/25
# Last observation: 2021/10/03
# Chi-squared of fit: 102.49 DOF: 152 RMS: 0.20
# Min/Max residuals: -0.79 0.62
# Exact a, adot, b, bdot, g, gdot:
1.544102E-05 2.119620E-02 1.243951E-06 1.880155E-03 2.276717E-02 -3.717231E-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
0.440729 -8.268765 -0.173622 0.007654 -0.990759 2452907.904493
# Heliocentric elements and errors
Epoch: 2452908.5000 = 2003/09/26
Mean Anomaly: 286.33838 +/- 0.000
Argument of Peri: 98.16410 +/- 0.000
Long of Asc Node: 347.11881 +/- 0.000
Inclination: 5.09776 +/- 0.000
Eccentricity: 0.17127251 +/- 0.0000
Semi-Major Axis: 45.81076347 +/- 0.0000
Time of Perihelion: 2476081.8317 +/- 0.0
Perihelion: 37.96463917 +/- 0.0000
Aphelion: 53.65688778 +/- 0.0000
Period (y) 310.0698 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 44.46758719 +/- 0.0000
Ecliptic Y -6.28322608 +/- 0.0000
Ecliptic Z 0.33792597 +/- 0.0000
Ecliptic XDOT -0.00008247 +/- 0.0000
Ecliptic YDOT 0.00258107 +/- 0.0000
Ecliptic ZDOT 0.00022282 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.91068309 +/- 0.0000
Geocenter to KBO 43.92305957 +/- 0.0000
# Hcoef: 7.04
The following table shows the complete astrometric record for 385458. 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 (385458) followed by the observatory code and reference code for the source of the astrometry.
2003 09 25.40375 23 28 55.50 -02 52 28.1 385458 568 Cq9897 2003 09 25.46139 23 28 55.26 -02 52 29.5 385458 568 Cq9897 2003 09 25.52378 23 28 55.01 -02 52 31.3 385458 568 Cq9897 2003 09 27.36229 23 28 47.40 -02 53 18.2 23.6g 385458 568 Cq9897 2003 09 27.41465 23 28 47.19 -02 53 19.4 23.8g 385458 568 Cq9897 2003 09 27.46965 23 28 46.96 -02 53 20.7 23.2g 385458 568 Cq9897 2004 09 07.34130 23 34 26.62 -02 10 12.5 22.5R 385458 695 Cq9897 2004 09 07.42784 23 34 26.25 -02 10 14.8 22.2R 385458 695 Cq9897 2004 09 11.32843 23 34 09.84 -02 11 55.8 385458 695 Cq9897 2004 09 11.37361 23 34 09.66 -02 11 57.0 385458 695 Cq9897 2004 09 11.41886 23 34 09.48 -02 11 58.2 385458 695 Cq9897 2005 07 08.53283 23 41 46.23 -01 17 31.1 22.8r 385458 568 Cq9897 2005 07 08.58383 23 41 46.16 -01 17 31.4 23.1r 385458 568 Cq9897 2005 07 09.55654 23 41 45.11 -01 17 36.4 22.8r 385458 568 Cq9897 2005 10 03.23850 23 36 59.07 -01 46 15.1 23.0R 385458 675 Cq9897 2005 10 04.23386 23 36 55.06 -01 46 40.1 385458 675 Cq9897 2007 05 21.26420 23 49 32.56 -00 14 58.3 23.9R 385458 250 S~06Ae 2007 05 21.27114 23 49 32.58 -00 14 58.1 385458 250 S~06Ae 2007 05 21.27809 23 49 32.60 -00 14 58.0 385458 250 S~06Ae 2007 05 21.33364 23 49 32.76 -00 14 56.8 385458 250 S~06Ae 2007 09 11.39453 23 47 18.72 -00 25 28.0 23.1r 385458 695 Cv8591 2007 09 11.44579 23 47 18.50 -00 25 29.5 22.8r 385458 695 Cv8591 2007 09 17.24847 23 46 53.88 -00 28 01.7 385458 675 Cy6717 2007 09 17.25468 23 46 53.86 -00 28 01.8 385458 675 Cy6717 2007 09 17.29518 23 46 53.70 -00 28 03.1 385458 675 Cy6717 2007 09 17.30001 23 46 53.66 -00 28 03.4 23.5R 385458 675 Cy6717 2007 11 09.15799 23 43 39.95 -00 48 27.0 385458 695 Cy4000 2007 11 09.24818 23 43 39.73 -00 48 28.4 385458 695 Cy4000 2010 09 07.48341 00 00 59.550 +01 24 57.30 385458 675 C~2mgL 2013 10 05.29608 00 12 43.91 +03 03 35.7 23.5R 385458 695 C~0zdW 2013 10 05.34476 00 12 43.72 +03 03 34.9 385458 695 C~0zdW 2013 10 06.31350 00 12 39.54 +03 03 08.3 385458 695 C~0zdW 2013 10 12.121400 00 12 14.93 +03 00 32.8 22.8i 385458 W84 C~4ewk 2013 10 13.091412 00 12 10.89 +03 00 07.0 22.4z 385458 W84 C~4ewk 2013 10 13.105868 00 12 10.84 +03 00 06.3 22.8i 385458 W84 C~4ewk 2013 10 28.065961 00 11 12.52 +02 53 50.9 23.4r 385458 W84 C~4ewk 2013 11 08.130035 00 10 36.00 +02 49 50.8 23.3r 385458 W84 C~4ewk 2013 11 22.064873 00 10 01.07 +02 45 54.5 23.1i 385458 W84 C~4ewk 2015 06 23.54553 00 26 13.268 +04 40 22.41 23.6r 385458 568 C~2mgL 2015 07 14.59595 00 26 21.207 +04 42 32.67 23.6r 385458 568 C~2mgL 2015 07 19.57506 00 26 17.673 +04 42 28.48 23.5r 385458 568 C~2mgL 2015 08 11.48002 00 25 36.613 +04 39 24.23 23.4r 385458 568 C~2mgL 2015 08 11.52447 00 25 36.495 +04 39 23.30 23.7r 385458 568 C~2mgL 2015 09 08.38855 00 24 01.477 +04 30 28.24 23.4r 385458 568 C~2mgL 2015 09 08.49278 00 24 01.044 +04 30 25.79 23.6r 385458 568 C~2mgL 2015 09 08.53500 00 24 00.871 +04 30 24.79 23.4r 385458 568 C~2mgL 2015 09 09.51188 00 23 56.903 +04 30 01.24 23.9w 385458 568 C~2mgL 2015 09 10.45287 00 23 53.056 +04 29 38.51 23.5w 385458 568 C~2mgL 2015 09 16.43732 00 23 27.969 +04 27 08.59 23.5w 385458 568 C~2mgL 2015 10 03.36404 00 22 14.085 +04 19 36.25 23.7w 385458 568 C~2mgL 2015 10 07.33325 00 21 56.706 +04 17 47.75 23.2r 385458 568 C~2mgL 2015 10 07.39134 00 21 56.447 +04 17 46.09 23.4r 385458 568 C~2mgL 2015 11 07.22874 00 19 55.614 +04 04 48.32 23.8w 385458 568 C~2mgL 2015 11 07.28121 00 19 55.434 +04 04 47.23 23.9w 385458 568 C~2mgL 2015 11 10.35841 00 19 45.738 +04 03 42.56 24.0w 385458 568 C~2mgL 2015 12 07.30513 00 18 49.455 +03 57 08.31 23.9w 385458 568 C~2mgL 2016 01 01.23434 00 18 51.449 +03 56 41.89 23.8w 385458 568 C~2mgL 2016 09 06.45273 00 28 49.565 +05 08 32.19 23.9w 385458 568 C~2mgL 2016 09 06.49401 00 28 49.396 +05 08 31.31 23.9w 385458 568 C~2mgL 2016 09 07.45091 00 28 45.576 +05 08 08.94 23.8w 385458 568 C~2mgL 2016 09 07.45899 00 28 45.544 +05 08 08.80 23.7w 385458 568 C~2mgL 2016 09 07.49637 00 28 45.389 +05 08 07.86 23.9w 385458 568 C~2mgL 2016 09 07.50445 00 28 45.357 +05 08 07.80 23.9w 385458 568 C~2mgL 2016 09 26.45157 00 27 24.679 +05 00 04.86 23.5w 385458 568 C~2mgL 2016 09 26.45563 00 27 24.659 +05 00 04.72 23.6w 385458 568 C~2mgL 2016 09 26.52564 00 27 24.335 +05 00 02.80 23.4w 385458 568 C~2mgL 2016 10 30.34461 00 25 01.979 +04 45 04.09 385458 568 C~2mgL 2016 11 03.29848 00 24 47.729 +04 43 30.66 23.6w 385458 568 C~2mgL 2016 11 03.35091 00 24 47.536 +04 43 29.42 23.6w 385458 568 C~2mgL 2016 12 24.26796 00 23 21.414 +04 33 06.23 23.7w 385458 568 C~2mgL 2016 12 24.27431 00 23 21.409 +04 33 06.08 23.6w 385458 568 C~2mgL 2017 01 02.25760 00 23 28.988 +04 33 38.69 23.4w 385458 568 C~2mgL 2017 01 02.26396 00 23 28.996 +04 33 38.82 385458 568 C~2mgL 2017 01 26.23696 00 24 23.518 +04 38 50.75 23.5w 385458 568 C~2mgL 2017 01 29.22410 00 24 33.554 +04 39 51.28 23.8w 385458 568 C~2mgL 2017 09 15.44018 00 32 59.680 +05 42 47.06 23.4w 385458 568 C~2mgL 2017 09 22.50534 00 32 29.222 +05 39 45.61 23.8w 385458 568 C~2mgL 2021 10 03.297020 00 51 16.509 +08 07 38.48 23.5G 385458 G37 C~590e 2021 10 03.333670 00 51 16.339 +08 07 37.34 385458 G37 C~590e
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 -0.14 0.00 -0.05
2 0.0002 0.00 -0.09 0.00 0.03
3 0.0003 0.00 0.10 0.00 -0.18
4 0.0054 0.00 -0.44 0.00 -0.20
5 0.0055 0.00 -0.30 0.00 -0.07
6 0.0057 0.00 -0.30 0.00 0.02
7 0.9526 0.00 0.28 0.00 0.18
8 0.9528 0.00 0.24 0.00 0.11
9 0.9635 0.00 0.03 0.00 0.06
10 0.9636 0.00 0.23 0.00 0.03
11 0.9638 0.00 0.44 0.00 0.01
12 1.7854 0.00 0.19 0.00 0.05
13 1.7856 0.00 0.00 0.00 -0.00
14 1.7882 0.00 0.27 0.00 -0.04
15 2.0228 0.00 0.10 0.00 -0.19
16 2.0255 0.00 0.13 0.00 -0.12
17 3.6519 0.00 -0.71 0.00 0.23
18 3.6519 0.00 -0.72 0.00 0.28
19 3.6519 0.00 -0.73 0.00 0.23
20 3.6521 0.00 -0.79 0.00 0.25
21 3.9616 0.00 0.37 0.00 0.13
22 3.9618 0.00 0.36 0.00 -0.04
23 3.9777 0.00 0.28 0.00 0.15
24 3.9777 0.00 0.39 0.00 0.21
25 3.9778 0.00 0.62 0.00 -0.01
26 3.9778 0.00 0.33 0.00 -0.19
27 4.1225 0.00 -0.31 0.00 -0.47
28 4.1228 0.00 -0.26 0.00 -0.47
29 6.9516 0.00 0.25 0.00 0.36
30 10.0285 0.00 -0.22 0.00 -0.12
31 10.0286 0.00 0.13 0.00 0.40
32 10.0312 0.00 -0.11 0.00 0.03
33 10.0471 0.00 -0.08 0.00 0.16
34 10.0498 0.00 -0.14 0.00 0.05
35 10.0498 0.00 0.02 0.00 -0.26
36 10.0908 0.00 0.00 0.00 -0.13
37 10.1211 0.00 0.01 0.00 0.01
38 10.1592 0.00 0.07 0.00 0.10
39 11.7430 0.00 0.01 0.00 -0.07
40 11.8007 0.00 0.23 0.00 -0.02
41 11.8143 0.00 0.02 0.00 -0.07
42 11.8770 0.00 -0.02 0.00 -0.03
43 11.8771 0.00 0.01 0.00 -0.36
44 11.9534 0.00 0.02 0.00 -0.08
45 11.9537 0.00 -0.02 0.00 -0.04
46 11.9538 0.00 -0.00 0.00 -0.03
47 11.9565 0.00 0.00 0.00 -0.12
48 11.9591 0.00 0.02 0.00 -0.03
49 11.9755 0.00 -0.05 0.00 -0.10
50 12.0218 0.00 0.01 0.00 -0.01
51 12.0327 0.00 0.01 0.00 0.01
52 12.0328 0.00 -0.00 0.00 -0.06
53 12.1172 0.00 0.13 0.00 -0.07
54 12.1174 0.00 0.04 0.00 -0.03
55 12.1258 0.00 0.04 0.00 -0.09
56 12.1996 0.00 0.08 0.00 -0.09
57 12.2678 0.00 0.09 0.00 -0.09
58 12.9502 0.00 -0.01 0.00 -0.02
59 12.9503 0.00 -0.03 0.00 0.06
60 12.9529 0.00 -0.03 0.00 -0.03
61 12.9529 0.00 -0.02 0.00 0.02
62 12.9530 0.00 -0.05 0.00 -0.04
63 12.9530 0.00 -0.03 0.00 0.09
64 13.0049 0.00 0.00 0.00 -0.01
65 13.0049 0.00 -0.02 0.00 -0.04
66 13.0051 0.00 -0.16 0.00 -0.07
67 13.0977 0.00 0.02 0.00 0.04
68 13.1085 0.00 0.08 0.00 0.12
69 13.1087 0.00 0.01 0.00 0.09
70 13.2481 0.00 0.08 0.00 0.19
71 13.2481 0.00 -0.03 0.00 0.03
72 13.2727 0.00 -0.03 0.00 -0.00
73 13.2727 0.00 -0.02 0.00 0.09
74 13.3384 0.00 -0.03 0.00 -0.01
75 13.3465 0.00 -0.09 0.00 -0.02
76 13.9741 0.00 -0.06 0.00 0.04
77 13.9934 0.00 0.00 0.00 0.02
78 18.0230 0.00 0.08 0.00 0.20
79 18.0231 0.00 0.06 0.00 0.04
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.
385458 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.305 46.305 46.305 ecceobj 0.172 0.172 0.172 incobj 5.070 5.070 5.070 qmin 37.386 37.366 37.377 qmax 55.125 55.121 55.117 amean 46.009 46.009 46.009 amin 45.593 45.592 45.588 amax 46.504 46.503 46.504 emean 0.172 0.172 0.172 emin 0.158 0.158 0.158 emax 0.185 0.186 0.185 imean 5.689 5.683 5.685 imin 4.973 4.939 4.930 imax 6.383 6.382 6.383 excite_mean 0.198 0.198 0.198 fracstop 1.000 1.000 1.000 cjmean 3.077 3.077 3.077 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 180.0 181.0 181.7 kozaiamp 180.0 180.0 180.0