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: 05PH23 # Created Fri Nov 1 01:08:40 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 1.05d # First observation: 2005/08/02 # Last observation: 2005/08/03 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # Chi-squared of fit: 2.41 DOF: 14 RMS: 0.09 # Min/Max residuals: -0.18 0.16 # Exact a, adot, b, bdot, g, gdot: 1.542078E-05 2.400472E-02 -2.759872E-07 -1.746495E-03 2.447529E-02 0.000000E+00 # Covariance matrix: 3.6718E-11 5.6158E-08 2.2475E-13 4.3711E-10 1.0341E-08 0.0000E+00 5.6158E-08 8.6654E-05 3.4602E-10 6.7305E-07 1.5922E-05 0.0000E+00 2.2475E-13 3.4602E-10 2.0602E-13 -5.9486E-11 6.3649E-11 0.0000E+00 4.3711E-10 6.7305E-07 -5.9486E-11 9.8517E-08 1.2380E-07 0.0000E+00 1.0341E-08 1.5922E-05 6.3649E-11 1.2380E-07 2.9288E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.9293E-04 # lat0 lon0 xBary yBary zBary JD0 -0.791657 -20.321450 0.495937 -0.012169 -0.887370 2453585.040473 # Heliocentric elements and errors Epoch: 2453580.5000 = 2005/07/29 Mean Anomaly: 330.44957 +/- 102.395 Argument of Peri: 221.25855 +/- 169.184 Long of Asc Node: 148.50771 +/- 4.777 Inclination: 4.24928 +/- 1.896 Eccentricity: 0.02091171 +/- 0.5752 Semi-Major Axis: 42.51322061 +/- 21.9690 Time of Perihelion: 2461891.3565 +/- 433740.1 Perihelion: 41.62419632 +/- 32.5689 Aphelion: 43.40224490 +/- 33.1829 Period (y) 277.2006 +/- 214.87 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.96686806 +/- 2.6787 Ecliptic Y -14.96181916 +/- 0.9922 Ecliptic Z -0.56449994 +/- 0.0395 Ecliptic XDOT 0.00093153 +/- 0.0015 Ecliptic YDOT 0.00251217 +/- 0.0010 Ecliptic ZDOT -0.00019532 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.74435889 +/- 2.5256 Geocenter to KBO 40.85753548 +/- 2.8568 # Hcoef: 9.12
The following table shows the complete astrometric record for 05PH23. 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 (05PH23) followed by the observatory code and reference code for the source of the astrometry.
2005 08 02.53973 22 46 08.40 -08 40 25.1 25.0R 05PH23 568 Cq7106 2005 08 02.54495 22 46 08.37 -08 40 25.2 05PH23 568 Cq7106 2005 08 02.61299 22 46 08.11 -08 40 26.6 05PH23 568 Cq7106 2005 08 02.61821 22 46 08.10 -08 40 26.8 05PH23 568 Cq7106 2005 08 02.62343 22 46 08.06 -08 40 26.9 05PH23 568 Cq7106 2005 08 03.53186 22 46 04.61 -08 40 49.5 05PH23 568 Cq7106 2005 08 03.55276 22 46 04.53 -08 40 50.0 05PH23 568 Cq7106 2005 08 03.55799 22 46 04.50 -08 40 50.1 05PH23 568 Cq7106 2005 08 03.58940 22 46 04.39 -08 40 50.9 05PH23 568 Cq7106
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 -0.18
2 0.0000 -0.45 -0.11 0.08 -0.10
3 0.0002 -4.55 0.04 0.23 0.13
4 0.0002 -4.76 0.16 0.10 0.01
5 0.0002 -5.35 -0.11 0.24 0.15
6 0.0027 -61.25 -0.01 -1.39 -0.03
7 0.0028 -62.54 0.02 -1.41 -0.02
8 0.0028 -62.99 -0.10 -1.33 0.06
9 0.0029 -64.80 0.08 -1.46 -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.
05PH23 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