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: 06HA123 # Created Sun Nov 24 02:08:49 2024 # Orbit generated from Bernstein formalism # Fitting 19 observations of 19 # Arc: 2.01y # First observation: 2005/05/12 # Last observation: 2007/05/16 Preliminary a, adot, b, bdot, g, gdot: -0.000006 0.024978 0.000002 -0.001416 0.024946 0.000000 # Chi-squared of fit: 20.57 DOF: 32 RMS: 0.18 # Min/Max residuals: -0.69 0.39 # Exact a, adot, b, bdot, g, gdot: 1.602193E-05 2.502042E-02 -3.931661E-07 -1.418512E-03 2.500441E-02 5.982372E-04 # Covariance matrix: 3.6370E-13 -5.3455E-13 -5.2246E-15 1.9742E-14 -2.3011E-13 -6.9524E-12 -5.3455E-13 1.7303E-12 2.2912E-14 -8.7383E-14 1.3353E-12 3.0719E-11 -5.2246E-15 2.2912E-14 2.7220E-13 -1.8128E-13 1.9385E-14 4.5014E-13 1.9742E-14 -8.7383E-14 -1.8128E-13 1.7173E-13 -7.5105E-14 -1.7170E-12 -2.3011E-13 1.3353E-12 1.9385E-14 -7.5105E-14 1.6028E-12 2.6324E-11 -6.9524E-12 3.0719E-11 4.5014E-13 -1.7170E-12 2.6324E-11 6.0359E-10 # lat0 lon0 xBary yBary zBary JD0 -0.614603 -117.236101 0.189764 -0.010532 -0.989117 2453502.944243 # Heliocentric elements and errors Epoch: 2453500.5000 = 2005/05/10 Mean Anomaly: 23.35915 +/- 0.927 Argument of Peri: 164.65475 +/- 1.041 Long of Asc Node: 52.02171 +/- 0.003 Inclination: 3.29571 +/- 0.001 Eccentricity: 0.05112631 +/- 0.0004 Semi-Major Axis: 42.98339107 +/- 0.0052 Time of Perihelion: 2446821.6147 +/- 265.0 Perihelion: 40.78580879 +/- 0.0194 Aphelion: 45.18097335 +/- 0.0195 Period (y) 281.8118 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -18.92719891 +/- 0.0009 Ecliptic Y -36.35040300 +/- 0.0018 Ecliptic Z -0.42897244 +/- 0.0000 Ecliptic XDOT 0.00240733 +/- 0.0000 Ecliptic YDOT -0.00131762 +/- 0.0000 Ecliptic ZDOT -0.00015596 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.98505428 +/- 0.0017 Geocenter to KBO 39.99295133 +/- 0.0020 # Hcoef: 6.88
The following table shows the complete astrometric record for 06HA123. 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 (06HA123) followed by the observatory code and reference code for the source of the astrometry.
2005 05 12.44350 16 02 18.78 -21 18 54.2 23.6g 06HA123 568 C~0VEM 2005 05 12.46976 16 02 18.64 -21 18 53.8 23.6g 06HA123 568 C~0VEM 2005 05 12.50108 16 02 18.48 -21 18 53.4 24.2g 06HA123 568 C~0VEM 2005 05 13.52320 16 02 13.32 -21 18 40.1 23.6g 06HA123 568 C~0VEM 2006 04 27.31494 16 09 31.82 -21 43 01.6 21.4R 06HA123 807 Cr3609 2006 04 28.13991 16 09 28.19 -21 42 53.1 06HA123 807 Cr3609 2006 04 28.20658 16 09 27.89 -21 42 52.2 06HA123 807 Cr3609 2006 05 25.38127 16 07 13.10 -21 37 25.7 22.9r 06HA123 568 C~0VEM 2006 05 25.46226 16 07 12.68 -21 37 24.6 23.0r 06HA123 568 C~0VEM 2006 05 26.45115 16 07 07.54 -21 37 11.8 06HA123 568 C~0VEM 2006 06 20.05602 16 05 05.37 -21 31 56.3 22.7R 06HA123 304 Cr4858 2006 06 20.14288 16 05 04.97 -21 31 55.3 06HA123 304 Cr4858 2006 07 28.03649 16 02 57.96 -21 26 09.6 22.9R 06HA123 304 Cr5556 2006 07 28.14409 16 02 57.76 -21 26 08.9 06HA123 304 Cr5556 2007 04 21.25183 16 15 58.88 -22 04 08.4 22.0R 06HA123 807 C~2i4J 2007 04 21.32600 16 15 58.57 -22 04 07.9 06HA123 807 C~2i4J 2007 05 16.28503 16 14 02.30 -21 59 51.4 06HA123 675 C~0VEM 2007 05 16.32749 16 14 02.07 -21 59 50.8 06HA123 675 C~0VEM 2007 05 16.37241 16 14 01.84 -21 59 50.3 06HA123 675 C~0VEM
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 -0.04 0.00 -0.10
2 0.0001 -2.00 -0.12 0.01 -0.06
3 0.0002 -4.27 -0.10 -0.03 -0.07
4 0.0030 -77.58 0.21 -1.09 -0.11
5 0.9579 6209.64 -0.69 -274.44 -0.03
6 0.9602 6158.31 0.17 -275.40 0.01
7 0.9603 6154.03 0.20 -275.29 0.24
8 1.0347 4245.90 0.18 -303.85 -0.10
9 1.0350 4239.93 0.27 -303.87 -0.03
10 1.0377 4167.10 0.10 -304.76 -0.15
11 1.1050 2433.59 0.02 -317.84 0.14
12 1.1053 2427.92 0.09 -317.93 0.11
13 1.2090 621.64 -0.16 -320.39 0.26
14 1.2093 618.77 -0.10 -320.24 0.39
15 1.9406 11747.35 0.01 -557.43 0.11
16 1.9408 11743.00 -0.02 -557.68 -0.02
17 2.0091 10101.80 0.08 -588.49 -0.24
18 2.0093 10098.53 -0.08 -588.47 -0.16
19 2.0094 10095.29 -0.03 -588.54 -0.18
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.
06HA123 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.535 42.550 42.520 ecceobj 0.041 0.041 0.041 incobj 3.311 3.311 3.311 qmin 40.173 40.193 40.131 qmax 45.695 45.698 45.685 amean 42.828 42.844 42.813 amin 42.503 42.518 42.481 amax 43.169 43.181 43.149 emean 0.037 0.037 0.037 emin 0.017 0.017 0.017 emax 0.059 0.059 0.059 imean 1.856 1.857 1.856 imin 0.754 0.768 0.740 imax 2.826 2.820 2.826 excite_mean 0.050 0.050 0.050 fracstop 1.000 1.000 1.000 cjmean 3.085 3.085 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 181.5 181.3 181.6 kozaiamp 180.0 179.9 179.9