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: 06HC123
# Created Sun Dec 22 02:08:54 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 14 observations of 14
# Arc: 8.83y
# First observation: 2004/07/08
# Last observation: 2013/05/08
# Chi-squared of fit: 14.76 DOF: 22 RMS: 0.18
# Min/Max residuals: -0.27 0.69
# Exact a, adot, b, bdot, g, gdot:
1.473628E-05 2.306209E-02 -2.481384E-06 -5.123951E-03 2.521959E-02 1.720471E-03
# Covariance matrix:
4.6369E-13 -2.5699E-13 -4.7731E-14 4.5414E-14 -5.1925E-14 -9.1929E-13
-2.5699E-13 3.3847E-13 6.5983E-14 -6.2469E-14 -2.0866E-13 1.2554E-12
-4.7731E-14 6.5983E-14 2.3695E-13 -4.7127E-14 -3.5593E-14 2.5488E-13
4.5414E-14 -6.2469E-14 -4.7127E-14 2.2617E-14 3.3209E-14 -2.4147E-13
-5.1925E-14 -2.0866E-13 -3.5593E-14 3.3209E-14 5.5342E-13 -6.5300E-13
-9.1929E-13 1.2554E-12 2.5488E-13 -2.4147E-13 -6.5300E-13 4.8578E-12
# lat0 lon0 xBary yBary zBary JD0
0.943100 -128.164437 -0.832483 0.009729 -0.588148 2453194.797954
# Heliocentric elements and errors
Epoch: 2453194.5000 = 2004/07/08
Mean Anomaly: 130.64200 +/- 0.065
Argument of Peri: 34.45744 +/- 0.053
Long of Asc Node: 57.18005 +/- 0.000
Inclination: 12.58796 +/- 0.000
Eccentricity: 0.13672162 +/- 0.0001
Semi-Major Axis: 36.64133508 +/- 0.0049
Time of Perihelion: 2423795.2878 +/- 15.9
Perihelion: 31.63167241 +/- 0.0047
Aphelion: 41.65099775 +/- 0.0059
Period (y) 221.8018 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.21081756 +/- 0.0007
Ecliptic Y -32.14727433 +/- 0.0009
Ecliptic Z 0.65258616 +/- 0.0000
Ecliptic XDOT 0.00184517 +/- 0.0000
Ecliptic YDOT -0.00170806 +/- 0.0000
Ecliptic ZDOT -0.00055300 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.24962477 +/- 0.0009
Geocenter to KBO 39.65172165 +/- 0.0012
# Hcoef: 7.32
The following table shows the complete astrometric record for 06HC123. 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 (06HC123) followed by the observatory code and reference code for the source of the astrometry.
2004 07 08.297211 15 18 41.32 -17 18 49.7 22.5I 06HC123 568 C~5FpU 2004 07 08.358987 15 18 41.15 -17 18 49.4 22.7I 06HC123 568 C~5FpU 2004 07 08.420271 15 18 40.99 -17 18 49.1 06HC123 568 C~5FpU 2006 04 28.24836 15 34 17.61 -18 48 03.3 22.0R 06HC123 807 Cr3609 2006 04 28.30820 15 34 17.32 -18 48 02.6 06HC123 807 Cr3609 2006 05 01.37825 15 34 01.99 -18 47 17.7 23.8R 06HC123 695 Cr3609 2006 05 01.45083 15 34 01.64 -18 47 17.2 06HC123 695 Cr3609 2006 07 28.01709 15 28 09.49 -18 31 18.5 23.5R 06HC123 304 Cr5556 2006 07 28.12370 15 28 09.36 -18 31 18.3 06HC123 304 Cr5556 2007 04 21.22080 15 40 01.00 -19 25 14.5 22.5R 06HC123 807 C~5FpU 2007 04 21.31409 15 40 00.55 -19 25 13.2 06HC123 807 C~5FpU 2013 05 08.26404 16 09 45.252 -22 40 41.41 24.0r 06HC123 807 C~5FpU 2013 05 08.33315 16 09 44.888 -22 40 40.70 06HC123 807 C~5FpU 2013 05 08.38256 16 09 44.622 -22 40 40.21 06HC123 807 C~5FpU
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 -0.10 0.00 -0.13
2 0.0002 0.00 -0.13 0.00 -0.20
3 0.0003 0.00 -0.06 0.00 -0.27
4 1.8041 0.00 -0.02 0.00 0.06
5 1.8043 0.00 0.14 0.00 -0.10
6 1.8127 0.00 -0.12 0.00 0.69
7 1.8129 0.00 0.19 0.00 0.12
8 2.0526 0.00 0.09 0.00 0.06
9 2.0529 0.00 0.07 0.00 0.17
10 2.7842 0.00 0.06 0.00 -0.21
11 2.7844 0.00 -0.13 0.00 -0.06
12 8.8322 0.00 0.10 0.00 -0.07
13 8.8324 0.00 0.01 0.00 -0.03
14 8.8325 0.00 -0.15 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.
06HC123 quality flag:3 Type: 4:3E 4:3E 4:3E axisobj 36.350 36.350 36.350 ecceobj 0.141 0.141 0.141 incobj 12.639 12.639 12.639 qmin 30.757 30.724 30.747 qmax 42.642 42.609 42.692 amean 36.477 36.477 36.477 amin 36.109 36.122 36.108 amax 36.880 36.865 36.882 emean 0.136 0.137 0.136 emin 0.112 0.112 0.112 emax 0.158 0.157 0.158 imean 8.886 8.972 8.826 imin 6.998 7.070 6.957 imax 11.795 11.795 11.795 excite_mean 0.207 0.208 0.206 fracstop 1.000 1.000 1.000 cjmean 2.980 2.979 2.980 libcent 0 179.6 179.8 179.0 libamp 0 76.0 76.2 75.5 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 176.9 177.4 177.0 kozaiamp 179.9 180.0 180.0