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: 06HS122 # Created Fri Nov 1 01:08:42 2024 # Orbit generated from Bernstein formalism # Fitting 8 observations of 8 # Arc: 118.80d # First observation: 2006/04/26 # Last observation: 2006/08/23 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.027689 0.000004 -0.001801 0.025873 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 15.38 DOF: 11 RMS: 0.25 # Min/Max residuals: -0.41 0.72 # Exact a, adot, b, bdot, g, gdot: 1.501513E-05 2.429849E-02 -2.615247E-07 -1.701971E-03 2.546266E-02 8.249614E-03 # Covariance matrix: 5.0064E-13 -6.9183E-12 -5.6740E-15 9.8031E-14 6.5629E-13 4.0668E-10 -6.9183E-12 2.6124E-08 2.4672E-11 -6.3696E-10 4.3573E-10 -1.3435E-06 -5.6740E-15 2.4672E-11 4.4527E-13 -2.1127E-12 4.0621E-13 -1.2702E-09 9.8031E-14 -6.3696E-10 -2.1127E-12 2.5368E-11 -1.0954E-11 3.2714E-08 6.5629E-13 4.3573E-10 4.0621E-13 -1.0954E-11 1.4455E-11 -2.1181E-08 4.0668E-10 -1.3435E-06 -1.2702E-09 3.2714E-08 -2.1181E-08 6.9336E-05 # lat0 lon0 xBary yBary zBary JD0 -1.709552 -138.942955 0.092636 -0.029642 -0.997020 2453851.726644 # Heliocentric elements and errors Epoch: 2453850.5000 = 2006/04/25 Mean Anomaly: 63.59294 +/- 32.174 Argument of Peri: 101.80666 +/- 8.627 Long of Asc Node: 18.39535 +/- 0.150 Inclination: 4.34346 +/- 0.027 Eccentricity: 0.32105999 +/- 0.3149 Semi-Major Axis: 42.20646404 +/- 9.0414 Time of Perihelion: 2436158.6492 +/- 6914.0 Perihelion: 28.65565718 +/- 14.6391 Aphelion: 55.75727090 +/- 17.8685 Period (y) 274.2058 +/- 88.11 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -30.41710620 +/- 0.0044 Ecliptic Y -26.37218324 +/- 0.0038 Ecliptic Z -1.17164212 +/- 0.0002 Ecliptic XDOT 0.00105537 +/- 0.0007 Ecliptic YDOT -0.00255459 +/- 0.0006 Ecliptic ZDOT -0.00020941 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.27486988 +/- 0.0042 Geocenter to KBO 39.27319021 +/- 0.0059 # Hcoef: 7.34
The following table shows the complete astrometric record for 06HS122. 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 (06HS122) followed by the observatory code and reference code for the source of the astrometry.
2006 04 26.22589 14 32 18.17 -16 46 09.5 22.4R 06HS122 807 Cr3609 2006 04 26.31058 14 32 17.73 -16 46 07.4 06HS122 807 Cr3609 2006 04 27.22965 14 32 13.14 -16 45 46.6 06HS122 807 Cr3609 2006 06 20.00772 14 28 18.53 -16 27 07.0 23.8R 06HS122 304 Cr4858 2006 06 20.10177 14 28 18.24 -16 27 05.6 06HS122 304 Cr4858 2006 08 21.02635 14 28 07.05 -16 24 36.5 23.1R 06HS122 807 Cs2782 2006 08 22.02488 14 28 09.78 -16 24 48.2 06HS122 807 Cs2782 2006 08 23.02772 14 28 12.67 -16 24 59.4 06HS122 807 Cs2782
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 0.02 0.00 -0.16
2 0.0002 -6.66 -0.15 0.01 -0.02
3 0.0027 -75.78 0.14 -0.89 0.18
4 0.1500 -3629.49 0.03 -3.16 0.05
5 0.1502 -3633.89 -0.03 -3.16 -0.01
6 0.3198 -3834.02 0.13 87.00 -0.34
7 0.3225 -3793.04 -0.16 88.40 -0.41
8 0.3253 -3750.04 0.03 91.02 0.72
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.
06HS122 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0