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: 06HG123
# Created Tue Jan 21 02:09:01 2025
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 0.99y
# First observation: 2006/04/26
# Last observation: 2007/04/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000014 0.025355 -0.000007 0.012489 0.027510 0.000000
# Chi-squared of fit: 137.84 DOF: 22 RMS: 0.55
# Min/Max residuals: -1.14 1.15
# Exact a, adot, b, bdot, g, gdot:
9.778478E-06 2.499273E-02 6.536766E-06 1.233128E-02 2.768963E-02 -1.223058E-02
# Covariance matrix:
1.8102E-13 1.9105E-12 -2.1675E-14 9.9484E-13 9.3298E-13 7.9885E-11
1.9105E-12 2.8092E-10 -2.9820E-12 1.3309E-10 9.3572E-11 1.0686E-08
-2.1675E-14 -2.9820E-12 1.6246E-13 -1.5692E-12 -9.9445E-13 -1.1378E-10
9.9484E-13 1.3309E-10 -1.5692E-12 6.4158E-11 4.4575E-11 5.0793E-09
9.3298E-13 9.3572E-11 -9.9445E-13 4.4575E-11 3.2960E-11 3.5789E-09
7.9885E-11 1.0686E-08 -1.1378E-10 5.0793E-09 3.5789E-09 4.0780E-07
# lat0 lon0 xBary yBary zBary JD0
2.152075 -148.462155 -0.071354 0.037647 -0.998459 2453851.596784
# Heliocentric elements and errors
Epoch: 2453850.5000 = 2006/04/25
Mean Anomaly: 312.18777 +/- 1.867
Argument of Peri: 100.50487 +/- 0.214
Long of Asc Node: 207.39291 +/- 0.001
Inclination: 26.22767 +/- 0.003
Eccentricity: 0.42013059 +/- 0.0218
Semi-Major Axis: 43.17248005 +/- 0.9414
Time of Perihelion: 2467611.3545 +/- 293.4
Perihelion: 25.03440033 +/- 1.0890
Aphelion: 61.31055976 +/- 1.6356
Period (y) 283.6735 +/- 9.28
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -31.57615809 +/- 0.0064
Ecliptic Y -19.46348064 +/- 0.0039
Ecliptic Z 1.35639989 +/- 0.0003
Ecliptic XDOT 0.00236537 +/- 0.0001
Ecliptic YDOT -0.00145585 +/- 0.0000
Ecliptic ZDOT 0.00117297 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.11765967 +/- 0.0058
Geocenter to KBO 36.11460565 +/- 0.0075
# Hcoef: 7.39
The following table shows the complete astrometric record for 06HG123. 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 (06HG123) followed by the observatory code and reference code for the source of the astrometry.
2006 04 26.09603 14 00 33.53 -09 59 21.0 22.5R 06HG123 807 Cr3950 2006 04 26.17946 14 00 33.10 -09 59 18.5 06HG123 807 Cr3950 2006 04 27.15246 14 00 28.10 -09 58 44.0 06HG123 807 Cr3950 2006 04 27.20233 14 00 27.84 -09 58 42.1 06HG123 807 Cr3950 2006 04 29.254249 14 00 17.25 -09 57 30.5 23.4V 06HG123 807 C~63RY 2006 04 29.262374 14 00 17.19 -09 57 30.2 06HG123 807 C~63RY 2006 04 29.294954 14 00 17.02 -09 57 28.9 06HG123 807 C~63RY 2006 04 30.281164 14 00 11.95 -09 56 54.7 23.5V 06HG123 807 C~63RY 2006 04 30.289295 14 00 11.90 -09 56 54.5 06HG123 807 C~63RY 2006 04 30.305582 14 00 11.82 -09 56 53.6 06HG123 807 C~63RY 2006 06 19.98328 13 56 49.28 -09 33 59.4 23.1R 06HG123 304 Cr4858 2006 06 20.07744 13 56 49.06 -09 33 57.9 06HG123 304 Cr4858 2007 04 22.24032 14 07 27.221 -09 51 14.69 21.8R 06HG123 807 2007 04 22.30373 14 07 26.846 -09 51 12.61 06HG123 807
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 0.93 0.00 0.10
2 0.0002 -6.82 1.15 0.16 -0.26
3 0.0029 -88.05 0.95 7.12 0.15
4 0.0030 -92.31 0.90 7.58 0.30
5 0.0086 -263.85 -0.15 20.93 0.07
6 0.0087 -264.79 -0.41 20.90 -0.01
7 0.0088 -267.59 -0.48 21.26 0.14
8 0.0115 -349.69 -1.00 27.56 0.01
9 0.0115 -350.46 -1.09 27.50 -0.11
10 0.0115 -351.88 -1.14 27.93 0.22
11 0.1503 -3636.85 0.15 282.44 -0.34
12 0.1505 -3640.42 0.20 282.72 -0.38
13 0.9888 5579.83 0.24 2547.05 0.23
14 0.9889 5573.90 -0.25 2547.13 -0.13
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.
06HG123 quality flag:1 Type: CENTAURR CENTAURR CENTAURR axisobj 42.637 45.715 40.321 ecceobj 0.419 0.482 0.356 incobj 26.382 26.378 26.386 qmin 24.716 23.463 25.906 qmax 61.871 69.763 57.686 amean 42.922 45.942 40.924 amin 41.828 45.260 40.321 amax 43.516 46.834 42.411 emean 0.415 0.481 0.351 emin 0.398 0.467 0.342 emax 0.425 0.490 0.360 imean 26.730 26.659 26.948 imin 26.558 26.462 26.562 imax 27.255 27.030 27.239 excite_mean 0.612 0.658 0.573 fracstop 0.014 0.012 0.020 cjmean 2.652 2.601 2.692 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 108.9 106.5 114.8 kozaiamp 7.5 6.4 13.3