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: 04PC112 # Created Sun Dec 22 02:08:41 2024 # Orbit generated from Bernstein formalism # Fitting 4 observations of 4 # Arc: 29.11d # First observation: 2004/08/13 # Last observation: 2004/09/11 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # Chi-squared of fit: 6.71 DOF: 4 RMS: 0.23 # Min/Max residuals: -0.39 0.39 # Exact a, adot, b, bdot, g, gdot: 1.585225E-05 2.333004E-02 -1.162758E-08 1.301393E-04 2.398055E-02 0.000000E+00 # Covariance matrix: 3.0813E-11 4.6270E-08 3.0357E-13 4.0641E-10 7.6632E-09 0.0000E+00 4.6270E-08 7.1183E-05 4.6692E-10 6.2511E-07 1.1787E-05 0.0000E+00 3.0357E-13 4.6692E-10 7.2813E-13 -5.0189E-12 7.7316E-11 0.0000E+00 4.0641E-10 6.2511E-07 -5.0189E-12 5.7213E-09 1.0351E-07 0.0000E+00 7.6632E-09 1.1787E-05 7.7316E-11 1.0351E-07 1.9517E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.8147E-04 # lat0 lon0 xBary yBary zBary JD0 -2.389627 -12.542547 0.456593 -0.037802 -0.908142 2453230.676743 # Heliocentric elements and errors Epoch: 2453230.5000 = 2004/08/13 Mean Anomaly: 326.52702 +/- 217.299 Argument of Peri: 311.96308 +/- 286.676 Long of Asc Node: 69.59339 +/- 1.983 Inclination: 2.35761 +/- 0.008 Eccentricity: 0.01931736 +/- 0.5664 Semi-Major Axis: 43.29942987 +/- 22.1835 Time of Perihelion: 2462906.8940 +/- 479035.4 Perihelion: 42.46299925 +/- 32.7848 Aphelion: 44.13586049 +/- 33.3597 Period (y) 284.9256 +/- 218.96 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.45399303 +/- 2.3693 Ecliptic Y -9.68911888 +/- 0.5273 Ecliptic Z -1.73869651 +/- 0.1013 Ecliptic XDOT 0.00057710 +/- 0.0015 Ecliptic YDOT 0.00259288 +/- 0.0009 Ecliptic ZDOT 0.00001495 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 42.60675567 +/- 2.3083 Geocenter to KBO 41.70045752 +/- 2.4294 # Hcoef: 0.00
The following table shows the complete astrometric record for 04PC112. 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 (04PC112) followed by the observatory code and reference code for the source of the astrometry.
2004 08 13.17600 23 17 36.46 -07 09 19.7 04PC112 807 Cl4405 2004 08 13.28230 23 17 36.06 -07 09 22.4 04PC112 807 Cl4405 2004 09 11.25098 23 15 33.55 -07 22 36.4 04PC112 304 Cl4405 2004 09 11.28428 23 15 33.46 -07 22 37.4 04PC112 304 Cl4405
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 0.02
2 0.0003 -6.54 0.10 -0.15 -0.02
3 0.0796 -1994.82 -0.39 -18.60 0.21
4 0.0797 -1996.44 0.39 -19.00 -0.21
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.
04PC112 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