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: 60458
# Created Sat Apr 20 01:07:13 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 93 observations of 93
# Arc: 20.04y
# First observation: 2000/02/05
# Last observation: 2020/02/18
# Chi-squared of fit: 403.11 DOF: 180 RMS: 0.37
# Min/Max residuals: -0.83 1.22
# Exact a, adot, b, bdot, g, gdot:
1.544781E-05 2.191781E-02 -4.620410E-06 -7.853087E-03 2.317555E-02 -7.944594E-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
0.002658 132.244090 -0.065924 -0.000164 -0.986587 2451579.672633
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 327.43698 +/- 0.000
Argument of Peri: 251.27406 +/- 0.000
Long of Asc Node: 312.32776 +/- 0.000
Inclination: 19.70601 +/- 0.000
Eccentricity: 0.40113126 +/- 0.0000
Semi-Major Axis: 59.36710750 +/- 0.0000
Time of Perihelion: 2466693.1087 +/- 0.0
Perihelion: 35.55310516 +/- 0.0000
Aphelion: 83.18110984 +/- 0.0000
Period (y) 457.4325 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -29.71423592 +/- 0.0000
Ecliptic Y 32.63124891 +/- 0.0000
Ecliptic Z 0.00180885 +/- 0.0000
Ecliptic XDOT -0.00129153 +/- 0.0000
Ecliptic YDOT -0.00242836 +/- 0.0000
Ecliptic ZDOT -0.00092767 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.13337210 +/- 0.0000
Geocenter to KBO 43.14918860 +/- 0.0000
# Hcoef: 7.36
The following table shows the complete astrometric record for 60458. 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 (60458) followed by the observatory code and reference code for the source of the astrometry.
2000 02 05.17189 08 58 49.88 +17 07 41.8 22.8R 60458 695 Cb4132 2000 02 05.28382 08 58 49.33 +17 07 43.3 60458 695 Cb4132 2000 03 30.16035 08 55 20.78 +17 18 01.0 23.5R 60458 695 Cb4132 2000 03 30.24751 08 55 20.58 +17 18 01.3 60458 695 Cb4132 2000 12 27.41163 09 06 16.215 +16 10 47.42 22.2R 60458 568 Cl5056 2000 12 28.40486 09 06 12.572 +16 10 58.13 22.5R 60458 568 Cl5056 2001 03 24.20123 09 00 06.02 +16 30 32.7 22.8R 60458 695 f4565 2001 03 24.30328 09 00 05.72 +16 30 33.5 60458 695 f4565 2002 02 06.19144 09 07 49.76 +15 31 49.1 22.4R 60458 695 Ce8743 2002 02 06.28058 09 07 49.33 +15 31 50.4 60458 695 Ce8743 2002 02 07.26681 09 07 44.53 +15 32 06.7 60458 695 Ce8743 2003 03 03.31846 09 10 31.48 +14 48 45.7 60458 568 Ch5665 2003 03 03.36878 09 10 31.26 +14 48 46.5 60458 568 Ch5665 2006 01 19.27742 09 27 57.27 +12 00 25.4 23.1R 60458 250 S~06Fb 2006 01 19.28182 09 27 57.24 +12 00 25.5 60458 250 S~06Fb 2006 01 19.28622 09 27 57.22 +12 00 25.6 60458 250 S~06Fb 2006 01 19.29062 09 27 57.20 +12 00 25.6 60458 250 S~06Fb 2007 10 19.80321 09 39 00.67 +10 18 20.7 23.8R 60458 250 S~06Fb 2007 10 19.81085 09 39 00.69 +10 18 20.5 60458 250 S~06Fb 2007 10 19.81918 09 39 00.72 +10 18 20.3 60458 250 S~06Fb 2007 10 19.82682 09 39 00.74 +10 18 20.1 60458 250 S~06Fb 2007 10 25.73098 09 39 17.73 +10 15 56.1 60458 250 S~06Fb 2007 10 25.73862 09 39 17.75 +10 15 55.9 60458 250 S~06Fb 2007 10 25.74626 09 39 17.77 +10 15 55.7 60458 250 S~06Fb 2007 10 25.75390 09 39 17.79 +10 15 55.5 60458 250 S~06Fb 2007 12 06.17751 09 39 46.55 +10 06 05.2 60458 250 S~06Fb 2007 12 06.18515 09 39 46.54 +10 06 05.2 60458 250 S~06Fb 2007 12 06.24140 09 39 46.47 +10 06 04.9 60458 250 S~06Fb 2007 12 06.24904 09 39 46.46 +10 06 04.9 60458 250 S~06Fb 2008 01 18.31490 09 37 37.37 +10 10 09.5 60458 250 S~06Fb 2008 01 18.32254 09 37 37.33 +10 10 09.7 60458 250 S~06Fb 2008 01 18.38295 09 37 37.07 +10 10 10.6 60458 250 S~06Fb 2008 01 18.39198 09 37 37.03 +10 10 10.7 60458 250 S~06Fb 2008 01 18.44962 09 37 36.78 +10 10 11.5 60458 250 S~06Fb 2008 01 18.45726 09 37 36.75 +10 10 11.6 60458 250 S~06Fb 2008 01 18.46351 09 37 36.72 +10 10 11.6 60458 250 S~06Fb 2013 02 08.494045 10 00 38.565 +05 22 12.05 22.9G 60458 F51 C~41ny 2013 02 08.509918 10 00 38.513 +05 22 12.25 23.1G 60458 F51 C~41ny 2013 02 08.525832 10 00 38.412 +05 22 12.74 22.9G 60458 F51 C~41ny 2013 02 08.543731 10 00 38.308 +05 22 13.36 23.9G 60458 F51 C~41ny 2014 02 23.371012 10 04 33.747 +04 25 12.68 23.1G 60458 F51 C~41ny 2014 02 23.382271 10 04 33.682 +04 25 13.29 23.4G 60458 F51 C~41ny 2014 02 26.461200 10 04 18.540 +04 26 23.30 23.8G 60458 F51 C~41ny 2014 02 26.472801 10 04 18.477 +04 26 23.42 22.5G 60458 F51 C~41ny 2014 02 26.484353 10 04 18.430 +04 26 23.92 22.8G 60458 F51 C~41ny 2014 02 26.495869 10 04 18.376 +04 26 24.18 23.2G 60458 F51 C~41ny 2014 03 06.377942 10 03 40.372 +04 29 28.17 22.7G 60458 F51 C~41ny 2015 01 16.490637 10 12 41.780 +03 11 18.19 22.5G 60458 F51 C~41ny 2015 01 16.502085 10 12 41.728 +03 11 18.38 22.8G 60458 F51 C~41ny 2015 01 16.513502 10 12 41.707 +03 11 18.25 23.9G 60458 F51 C~41ny 2015 03 14.361966 10 08 15.174 +03 29 29.15 23.4G 60458 F51 C~41ny 2015 04 15.16675 10 06 20.44 +03 41 14.5 23.2R 60458 695 C~1RSr 2015 04 15.23755 10 06 20.24 +03 41 15.8 60458 695 C~1RSr 2015 04 15.31670 10 06 20.05 +03 41 17.5 60458 695 C~1RSr 2015 12 09.612684 10 19 23.576 +02 09 35.19 23.6G 60458 F51 C~41ny 2015 12 09.622053 10 19 23.571 +02 09 35.09 24.0G 60458 F51 C~41ny 2015 12 09.631459 10 19 23.562 +02 09 34.59 23.9G 60458 F51 C~41ny 2015 12 09.640927 10 19 23.555 +02 09 34.62 23.8G 60458 F51 C~41ny 2015 12 23.584314 10 19 05.999 +02 07 03.76 23.3G 60458 F51 C~41ny 2016 01 04.591699 10 18 36.805 +02 06 30.37 23.4G 60458 F51 C~41ny 2016 01 14.607022 10 18 03.608 +02 07 07.65 23.2G 60458 F51 C~41ny 2016 01 14.618227 10 18 03.565 +02 07 07.55 23.9G 60458 F51 C~41ny 2016 01 14.629502 10 18 03.528 +02 07 07.77 23.6G 60458 F51 C~41ny 2016 01 14.640703 10 18 03.485 +02 07 07.79 24.0G 60458 F51 C~41ny 2016 01 17.573146 10 17 52.427 +02 07 29.51 22.8G 60458 F51 C~41ny 2016 03 31.345333 10 12 15.700 +02 32 39.32 22.5G 60458 F51 C~41ny 2016 03 31.357559 10 12 15.639 +02 32 39.87 23.7G 60458 F51 C~41ny 2016 03 31.358309 10 12 15.656 +02 32 39.82 22.1G 60458 F51 C~41ny 2016 03 31.369792 10 12 15.603 +02 32 39.71 22.8G 60458 F51 C~41ny 2016 03 31.370549 10 12 15.595 +02 32 40.21 22.7G 60458 F51 C~41ny 2016 03 31.382076 10 12 15.553 +02 32 40.01 23.0G 60458 F51 C~41ny 2018 01 09.54575 10 28 57.26 -00 03 34.5 23.5y 60458 T09 C~7yM9 2018 01 09.58928 10 28 57.15 -00 03 34.4 22.8y 60458 T09 C~7yM9 2018 01 09.59196 10 28 57.13 -00 03 34.4 23.0y 60458 T09 C~7yM9 2018 01 09.64638 10 28 56.95 -00 03 34.4 23.2y 60458 T09 C~7yM9 2018 01 16.514563 10 28 33.449 -00 03 10.79 23.2G 60458 F51 C~41ny 2018 01 16.527233 10 28 33.425 -00 03 10.61 23.2G 60458 F51 C~41ny 2018 01 16.539894 10 28 33.347 -00 03 09.93 23.4G 60458 F51 C~41ny 2018 01 16.552553 10 28 33.317 -00 03 10.22 23.7G 60458 F51 C~41ny 2019 01 10.555392 10 34 19.273 -01 09 57.18 23.0G 60458 F51 C~41ny 2019 01 11.40462 10 34 16.60 -01 09 56.7 22.7z 60458 T09 C~7s1e 2019 01 11.44475 10 34 16.48 -01 09 56.5 22.7z 60458 T09 C~7s1e 2019 01 11.48497 10 34 16.35 -01 09 56.7 22.7z 60458 T09 C~7s1e 2019 03 28.342026 10 28 31.643 -00 46 19.64 22.5G 60458 F51 C~41ny 2019 04 02.331984 10 28 11.601 -00 44 06.03 22.9G 60458 F51 C~41ny 2019 05 01.256383 10 26 50.682 -00 32 56.05 23.1G 60458 F51 C~41ny 2019 05 01.282327 10 26 50.644 -00 32 55.47 23.1G 60458 F51 C~41ny 2019 05 01.295553 10 26 50.633 -00 32 55.35 23.5G 60458 F51 C~41ny 2019 05 01.308776 10 26 50.604 -00 32 54.93 23.2G 60458 F51 C~41ny 2020 01 25.492108 10 38 55.282 -02 16 13.03 23.7G 60458 F51 C~41ny 2020 02 18.241890 10 37 05.965 -02 10 22.68 23.1G 60458 G37 C~3lOx 2020 02 18.331770 10 37 05.519 -02 10 20.63 60458 G37 C~3lOx 2020 02 18.393410 10 37 05.197 -02 10 19.48 60458 G37 C~3lOx
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 -0.15 0.00 -0.12
2 0.0003 0.00 -0.16 0.00 -0.38
3 0.1478 0.00 -0.00 0.00 0.10
4 0.1481 0.00 -0.01 0.00 0.01
5 0.8932 0.00 0.01 0.00 0.11
6 0.8959 0.00 0.08 0.00 -0.01
7 1.1308 0.00 0.26 0.00 -0.24
8 1.1311 0.00 0.13 0.00 -0.21
9 2.0042 0.00 -0.51 0.00 0.19
10 2.0044 0.00 -0.38 0.00 0.00
11 2.0071 0.00 -0.70 0.00 -0.02
12 3.0723 0.00 -0.53 0.00 -0.10
13 3.0724 0.00 -0.56 0.00 -0.06
14 5.9551 0.00 0.83 0.00 -0.83
15 5.9551 0.00 0.67 0.00 -0.80
16 5.9551 0.00 0.67 0.00 -0.76
17 5.9552 0.00 0.67 0.00 -0.83
18 7.7033 0.00 -0.47 0.00 -0.51
19 7.7033 0.00 -0.53 0.00 -0.51
20 7.7033 0.00 -0.47 0.00 -0.50
21 7.7034 0.00 -0.52 0.00 -0.50
22 7.7195 0.00 1.22 0.00 0.81
23 7.7196 0.00 1.22 0.00 0.79
24 7.7196 0.00 1.22 0.00 0.77
25 7.7196 0.00 1.22 0.00 0.75
26 7.8330 0.00 0.23 0.00 0.11
27 7.8330 0.00 0.23 0.00 0.14
28 7.8332 0.00 0.24 0.00 0.08
29 7.8332 0.00 0.24 0.00 0.11
30 7.9511 0.00 -0.19 0.00 0.53
31 7.9511 0.00 -0.29 0.00 0.62
32 7.9513 0.00 -0.23 0.00 0.66
33 7.9513 0.00 -0.24 0.00 0.63
34 7.9515 0.00 -0.20 0.00 0.61
35 7.9515 0.00 -0.15 0.00 0.61
36 7.9515 0.00 -0.19 0.00 0.52
37 13.0111 0.00 -0.28 0.00 -0.08
38 13.0112 0.00 0.12 0.00 -0.18
39 13.0112 0.00 -0.21 0.00 -0.00
40 13.0113 0.00 -0.43 0.00 0.27
41 14.0512 0.00 -0.27 0.00 -0.33
42 14.0512 0.00 -0.40 0.00 0.02
43 14.0597 0.00 -0.15 0.00 -0.13
44 14.0597 0.00 -0.22 0.00 -0.28
45 14.0597 0.00 -0.06 0.00 -0.04
46 14.0598 0.00 -0.01 0.00 -0.05
47 14.0813 0.00 -0.19 0.00 -0.11
48 14.9468 0.00 -0.26 0.00 -0.04
49 14.9468 0.00 -0.36 0.00 0.05
50 14.9469 0.00 0.01 0.00 -0.18
51 15.1025 0.00 0.07 0.00 -0.34
52 15.1896 0.00 0.21 0.00 -0.03
53 15.1898 0.00 -0.06 0.00 -0.03
54 15.1900 0.00 0.11 0.00 0.22
55 15.8424 0.00 -0.13 0.00 -0.15
56 15.8424 0.00 -0.11 0.00 -0.11
57 15.8425 0.00 -0.15 0.00 -0.47
58 15.8425 0.00 -0.16 0.00 -0.30
59 15.8807 0.00 -0.27 0.00 -0.64
60 15.9135 0.00 -0.05 0.00 0.20
61 15.9410 0.00 -0.11 0.00 0.12
62 15.9410 0.00 -0.12 0.00 -0.05
63 15.9410 0.00 -0.04 0.00 0.09
64 15.9411 0.00 -0.06 0.00 0.04
65 15.9491 0.00 -0.27 0.00 -0.03
66 16.1511 0.00 0.21 0.00 0.02
67 16.1511 0.00 -0.02 0.00 0.29
68 16.1511 0.00 0.27 0.00 0.22
69 16.1511 0.00 0.12 0.00 -0.16
70 16.1511 0.00 0.04 0.00 0.32
71 16.1512 0.00 0.06 0.00 -0.14
72 17.9285 0.00 -0.46 0.00 0.11
73 17.9286 0.00 0.01 0.00 0.16
74 17.9286 0.00 -0.16 0.00 0.16
75 17.9287 0.00 -0.20 0.00 0.08
76 17.9476 0.00 -0.17 0.00 -0.09
77 17.9476 0.00 0.18 0.00 0.02
78 17.9476 0.00 -0.28 0.00 0.62
79 17.9477 0.00 -0.01 0.00 0.26
80 18.9306 0.00 -0.22 0.00 0.11
81 18.9329 0.00 -0.27 0.00 0.09
82 18.9330 0.00 -0.11 0.00 0.26
83 18.9331 0.00 -0.09 0.00 0.03
84 19.1408 0.00 0.37 0.00 -0.06
85 19.1544 0.00 0.27 0.00 -0.25
86 19.2336 0.00 0.03 0.00 -0.26
87 19.2337 0.00 0.11 0.00 -0.16
88 19.2337 0.00 0.28 0.00 -0.28
89 19.2338 0.00 0.18 0.00 -0.11
90 19.9708 0.00 -0.01 0.00 0.18
91 20.0358 0.00 0.17 0.00 -0.05
92 20.0360 0.00 0.30 0.00 0.15
93 20.0362 0.00 0.16 0.00 0.03
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.
60458 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 59.341 59.341 59.342 ecceobj 0.401 0.401 0.401 incobj 19.709 19.709 19.709 qmin 34.864 34.867 34.861 qmax 85.465 85.472 85.492 amean 59.594 59.590 59.607 amin 58.891 58.910 58.962 amax 60.472 60.455 60.523 emean 0.396 0.397 0.397 emin 0.378 0.378 0.378 emax 0.414 0.414 0.414 imean 21.697 21.687 21.698 imin 21.028 21.028 21.028 imax 22.612 22.602 22.615 excite_mean 0.542 0.542 0.542 fracstop 1.000 1.000 1.000 cjmean 2.904 2.904 2.904 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 178.5 178.5 178.4 kozaiamp 180.0 180.0 180.0