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: 06JU58 # Created Sun Oct 19 01:09:12 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 24 observations of 25 # Arc: 11.08y # First observation: 2004/05/24 # Last observation: 2015/06/24 # Chi-squared of fit: 23.57 DOF: 42 RMS: 0.18 # Min/Max residuals: -0.78 0.38 # Exact a, adot, b, bdot, g, gdot: 1.392707E-05 1.990033E-02 1.884875E-06 2.436407E-03 2.196997E-02 2.448098E-03 # Covariance matrix: 2.1114E-13 -1.5584E-13 1.2510E-14 -1.7242E-14 2.1088E-14 -6.1847E-13 -1.5584E-13 2.1395E-13 -1.8772E-14 2.5524E-14 6.0614E-14 9.1422E-13 1.2510E-14 -1.8772E-14 1.0099E-13 -1.3533E-14 -7.4249E-15 -8.1937E-14 -1.7242E-14 2.5524E-14 -1.3533E-14 6.7649E-15 8.9208E-15 1.1122E-13 2.1088E-14 6.0614E-14 -7.4249E-15 8.9208E-15 3.3498E-13 3.1498E-13 -6.1847E-13 9.1422E-13 -8.1937E-14 1.1122E-13 3.1498E-13 3.9829E-12 # lat0 lon0 xBary yBary zBary JD0 -0.845152 -128.491995 -0.214062 -0.014550 -0.989788 2453149.866503 # Heliocentric elements and errors Epoch: 2453150.5000 = 2004/05/25 Mean Anomaly: 83.46093 +/- 0.054 Argument of Peri: 255.04699 +/- 0.038 Long of Asc Node: 238.48661 +/- 0.000 Inclination: 7.03297 +/- 0.000 Eccentricity: 0.12838761 +/- 0.0001 Semi-Major Axis: 46.42322797 +/- 0.0051 Time of Perihelion: 2426366.0856 +/- 17.8 Perihelion: 40.46306075 +/- 0.0062 Aphelion: 52.38339518 +/- 0.0072 Period (y) 316.3087 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -28.77874435 +/- 0.0007 Ecliptic Y -36.52835717 +/- 0.0009 Ecliptic Z -0.67126242 +/- 0.0000 Ecliptic XDOT 0.00174571 +/- 0.0000 Ecliptic YDOT -0.00179276 +/- 0.0000 Ecliptic ZDOT 0.00029921 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.50784567 +/- 0.0009 Geocenter to KBO 45.51663758 +/- 0.0012 # Hcoef: 6.61
The following table shows the complete astrometric record for 06JU58. 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 (06JU58) followed by the observatory code and reference code for the source of the astrometry.
2004 05 24.36576 15 15 24.19 -18 57 20.6 23.3g 06JU58 568 C~0VEN 2004 05 24.38893 15 15 24.08 -18 57 20.1 23.6g 06JU58 568 C~0VEN 2004 05 24.41334 15 15 23.97 -18 57 19.7 23.3g 06JU58 568 C~0VEN 2004 06 10.29914 15 14 14.76 -18 52 21.8 23.5i 06JU58 568 C~0VEN 2004 06 10.36907 15 14 14.50 -18 52 20.6 23.4i 06JU58 568 C~0VEN 2004 06 10.43311 15 14 14.24 -18 52 19.6 23.2i 06JU58 568 C~0VEN 2005 05 14.39397 15 20 57.96 -19 10 00.3 23.3r 06JU58 568 C~0VEN 2005 05 14.42769 15 20 57.81 -19 09 59.7 23.2r 06JU58 568 C~0VEN 2005 05 14.46641 15 20 57.62 -19 09 58.8 23.4r 06JU58 568 C~0VEN 2005 07 08.32520 15 17 36.38 -18 55 40.6 22.9r 06JU58 568 C~0VEN 2005 07 08.36050 15 17 36.30 -18 55 40.3 22.7r 06JU58 568 C~0VEN 2005 08 02.10552 15 17 05.26 -18 52 46.7 06JU58 309 C~0VEN 2005 08 02.10930 15 17 05.26 -18 52 46.7 06JU58 309 C~0VEN 2005 08 03.09538 15 17 05.06 -18 52 43.6 06JU58 309 C~0VEN 2005 08 03.09917 15 17 05.05 -18 52 43.5 06JU58 309 C~0VEN 2006 05 01.37053 15 26 44.56 -19 22 50.8 24.2R 06JU58 695 Cr3615 2006 05 01.44301 15 26 44.28 -19 22 50.2 06JU58 695 Cr3615 2006 05 02.46515 15 26 40.20 -19 22 36.8 06JU58 695 Cr3615 2006 05 03.32385 15 26 36.08 -19 22 17.5 22.9r 06JU58 695 C~0VEN 2006 05 03.38468 15 26 35.83 -19 22 16.5 22.8r 06JU58 695 C~0VEN 2015 04 15.40204 16 10 03.41 -20 23 10.1 22.7R 06JU58 695 C~1RHd 2015 04 15.44032 16 10 03.30 -20 23 09.5 06JU58 695 C~1RHd 2015 04 15.47892 16 10 03.16 -20 23 09.4 06JU58 695 C~1RHd 2015 06 24.220995 16 05 14.661 -20 08 36.98 23.5V 06JU58 W84 C~94hs 2015 06 24.255486 16 05 14.510 -20 08 36.41 23.4V 06JU58 W84 C~94hs
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 0.08 0.00 -0.05
2 0.0001 0.00 -0.04 0.00 0.03
3 0.0001 0.00 -0.07 0.00 -0.02
4 0.0464 0.00 0.00 0.00 -0.03
5 0.0466 0.00 0.17 0.00 0.00
6 0.0467 0.00 -0.02 0.00 -0.07
7 0.9720 0.00 -0.05 0.00 0.19
8 0.9721 0.00 0.00 0.00 0.18
9 0.9722 0.00 -0.21 0.00 0.38
10 1.1224 0.00 -0.07 0.00 0.14
11 1.1225 0.00 -0.06 0.00 0.06
12 1.1903 0.00 0.08 0.00 -0.12
13 1.1903 0.00 0.09 0.00 -0.13
14 1.1930 0.00 0.01 0.00 -0.03
15 1.1930 0.00 -0.13 0.00 0.06
16 1.9357 0.00 -0.24 0.00 -0.15
17 1.9359 0.00 0.34 0.00 -0.78
18 1.9387 0.00 ( 5.68) 0.00 ( -4.60)
19 1.9410 0.00 -0.15 0.00 0.17
20 1.9412 0.00 0.15 0.00 0.14
21 10.8913 0.00 -0.10 0.00 0.02
22 10.8914 0.00 0.16 0.00 0.22
23 10.8915 0.00 -0.02 0.00 -0.09
24 11.0824 0.00 0.12 0.00 -0.13
25 11.0825 0.00 -0.16 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.
06JU58 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.963 45.963 45.963 ecceobj 0.126 0.126 0.126 incobj 7.060 7.060 7.060 qmin 39.736 39.721 39.756 qmax 53.189 53.209 53.176 amean 46.290 46.290 46.290 amin 45.906 45.906 45.909 amax 46.725 46.720 46.725 emean 0.125 0.125 0.125 emin 0.113 0.112 0.113 emax 0.139 0.139 0.139 imean 8.397 8.397 8.397 imin 7.900 7.904 7.908 imax 8.805 8.802 8.807 excite_mean 0.192 0.193 0.192 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 179.2 179.1 179.1 kozaiamp 180.0 180.0 180.0