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: 612687
# Created Sun Nov 24 02:07:42 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 39 observations of 39
# Arc: 17.06y
# First observation: 2003/10/24
# Last observation: 2020/11/14
# Chi-squared of fit: 133.31 DOF: 72 RMS: 0.33
# Min/Max residuals: -0.62 1.46
# Exact a, adot, b, bdot, g, gdot:
1.476674E-05 2.320659E-02 2.167217E-06 1.179292E-03 2.405334E-02 2.560459E-04
# 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
0.972481 54.606661 0.410773 0.015444 -0.907022 2452936.882033
# Heliocentric elements and errors
Epoch: 2452936.5000 = 2003/10/24
Mean Anomaly: 343.01728 +/- 0.000
Argument of Peri: 35.18407 +/- 0.000
Long of Asc Node: 36.04537 +/- 0.000
Inclination: 3.07502 +/- 0.000
Eccentricity: 0.00488286 +/- 0.0000
Semi-Major Axis: 42.68332105 +/- 0.0000
Time of Perihelion: 2457741.4685 +/- 0.0
Perihelion: 42.47490444 +/- 0.0000
Aphelion: 42.89173766 +/- 0.0000
Period (y) 278.8660 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 24.93242888 +/- 0.0000
Ecliptic Y 34.39146607 +/- 0.0000
Ecliptic Z 0.70569780 +/- 0.0000
Ecliptic XDOT -0.00214248 +/- 0.0000
Ecliptic YDOT 0.00154576 +/- 0.0000
Ecliptic ZDOT 0.00013487 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.48407978 +/- 0.0000
Geocenter to KBO 41.57429155 +/- 0.0000
# Hcoef: 7.42
The following table shows the complete astrometric record for 612687. 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 (612687) followed by the observatory code and reference code for the source of the astrometry.
2003 10 24.38129 03 27 58.65 +19 51 50.9 23.2R 612687 695 Cj2815 2003 10 24.47409 03 27 58.20 +19 51 49.6 612687 695 Cj2815 2003 11 20.27327 03 25 46.95 +19 44 23.9 23.2R 612687 695 Cj2815 2003 11 20.34466 03 25 46.61 +19 44 22.7 612687 695 Cj2815 2003 11 24.25805 03 25 26.96 +19 43 14.0 612687 695 Cj2815 2003 11 24.33369 03 25 26.56 +19 43 12.3 612687 695 Cj2815 2003 12 17.27820 03 23 39.92 +19 36 48.1 23.4R 612687 568 Ck9589 2003 12 17.34886 03 23 39.59 +19 36 46.8 612687 568 Ck9589 2004 01 14.05395 03 22 11.34 +19 31 11.5 23.3R 612687 304 Cj7023 2004 01 14.07822 03 22 11.28 +19 31 11.2 612687 304 Cj7023 2004 01 14.10080 03 22 11.23 +19 31 10.9 612687 304 Cj7023 2004 01 15.05509 03 22 09.31 +19 31 03.4 23.3R 612687 304 Cj7023 2004 01 15.07066 03 22 09.26 +19 31 03.3 612687 304 Cj7023 2004 03 15.12250 03 23 06.49 +19 33 50.2 22.7R 612687 695 Ck4313 2004 03 15.16884 03 23 06.69 +19 33 49.9 612687 695 Ck4313 2004 03 16.12519 03 23 10.34 +19 34 03.8 612687 695 Ck4313 2004 09 13.38551 03 35 33.47 +20 21 12.3 22.2R 612687 304 Cl5739 2004 09 13.39329 03 35 33.45 +20 21 12.2 612687 304 Cl5739 2004 09 19.57226 03 35 21.73 +20 20 45.2 24.0R 612687 568 Cl5739 2004 09 19.59992 03 35 21.66 +20 20 44.6 612687 568 Cl5739 2004 09 19.61549 03 35 21.63 +20 20 45.0 612687 568 Cl5739 2005 03 10.12423 03 28 01.54 +19 55 45.0 23.2R 612687 695 Cn0218 2005 03 11.12126 03 28 04.79 +19 55 56.5 612687 695 Cn0218 2007 11 09.26974 03 48 32.58 +21 17 02.0 612687 695 Cy4001 2007 11 09.35563 03 48 32.14 +21 17 00.8 612687 695 Cy4001 2008 03 04.14576 03 43 36.16 +21 00 32.9 612687 695 Cy7592 2008 03 05.13626 03 43 38.55 +21 00 39.4 612687 695 Cy7592 2008 10 23.48092 03 55 18.96 +21 41 03.0 24.3r 612687 695 C~0gM6 2008 10 23.48799 03 55 18.93 +21 41 03.0 24.3r 612687 695 C~0gM6 2008 10 24.40777 03 55 14.94 +21 40 52.9 23.8r 612687 695 C~0gM6 2008 10 24.41484 03 55 14.90 +21 40 52.8 24.1r 612687 695 C~0gM6 2016 02 04.15755 04 27 16.23 +23 29 14.7 23.5R 612687 G37 C~1lv5 2016 02 04.27632 04 27 16.04 +23 29 14.0 612687 G37 C~1lv5 2019 10 26.254320 04 57 23.366 +24 37 54.87 23.6G 612687 G37 C~3cWX 2019 10 26.345430 04 57 22.901 +24 37 54.41 612687 G37 C~3cWX 2019 10 26.442160 04 57 22.545 +24 37 54.17 612687 G37 C~3cWX 2020 11 14.403840 05 01 43.982 +24 48 03.99 23.8G 612687 G37 C~4NFs 2020 11 14.458410 05 01 43.780 +24 48 03.83 612687 G37 C~4NFs 2020 11 14.487290 05 01 43.606 +24 48 03.54 612687 G37 C~4NFs
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 0.18 0.00 -0.25
2 0.0003 0.00 -0.14 0.00 -0.16
3 0.0736 0.00 0.15 0.00 0.13
4 0.0738 0.00 0.53 0.00 0.19
5 0.0845 0.00 -0.01 0.00 0.40
6 0.0847 0.00 -0.26 0.00 0.04
7 0.1476 0.00 0.11 0.00 0.16
8 0.1478 0.00 -0.35 0.00 -0.06
9 0.2236 0.00 -0.17 0.00 -0.13
10 0.2237 0.00 -0.29 0.00 -0.22
11 0.2237 0.00 -0.32 0.00 -0.34
12 0.2263 0.00 -0.32 0.00 -0.13
13 0.2264 0.00 -0.59 0.00 -0.11
14 0.3908 0.00 0.17 0.00 0.53
15 0.3909 0.00 0.58 0.00 -0.37
16 0.3935 0.00 0.78 0.00 0.71
17 0.8898 0.00 0.14 0.00 -0.28
18 0.8898 0.00 0.03 0.00 -0.36
19 0.9068 0.00 -0.02 0.00 0.05
20 0.9068 0.00 -0.13 0.00 -0.40
21 0.9069 0.00 -0.05 0.00 0.09
22 1.3764 0.00 -0.00 0.00 -0.02
23 1.3792 0.00 -0.07 0.00 0.63
24 4.0435 0.00 0.39 0.00 -0.14
25 4.0437 0.00 0.32 0.00 -0.11
26 4.3608 0.00 0.12 0.00 0.08
27 4.3635 0.00 0.09 0.00 0.03
28 4.9996 0.00 -0.12 0.00 -0.14
29 4.9996 0.00 -0.10 0.00 -0.06
30 5.0021 0.00 -0.17 0.00 0.05
31 5.0021 0.00 -0.29 0.00 0.02
32 12.2814 0.00 -0.23 0.00 0.31
33 12.2817 0.00 -0.08 0.00 0.27
34 16.0051 0.00 1.46 0.00 0.10
35 16.0054 0.00 -0.44 0.00 -0.13
36 16.0056 0.00 -0.35 0.00 -0.10
37 17.0596 0.00 -0.62 0.00 -0.11
38 17.0598 0.00 0.36 0.00 0.01
39 17.0598 0.00 -0.13 0.00 -0.14
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.
612687 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.978 42.978 42.978 ecceobj 0.012 0.012 0.012 incobj 3.061 3.061 3.061 qmin 41.039 41.040 41.039 qmax 44.447 44.448 44.446 amean 42.671 42.671 42.671 amin 42.348 42.349 42.347 amax 43.001 43.001 43.002 emean 0.017 0.017 0.017 emin 0.000 0.000 0.000 emax 0.034 0.034 0.034 imean 2.111 2.111 2.111 imin 0.934 0.934 0.934 imax 3.057 3.057 3.057 excite_mean 0.043 0.043 0.043 fracstop 1.000 1.000 1.000 cjmean 3.084 3.084 3.084 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 169.3 169.4 169.3 kozaiamp 180.0 180.0 180.0