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: 00GM147 # Created Wed Nov 27 02:08:04 2024 # Orbit generated from Bernstein formalism # Fitting 7 observations of 7 # Arc: 33.09d # First observation: 2000/04/03 # Last observation: 2000/05/06 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.039076 -0.000001 0.002924 0.028972 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 2.06 DOF: 9 RMS: 0.10 # Min/Max residuals: -0.12 0.12 # Exact a, adot, b, bdot, g, gdot: 1.924875E-05 3.392939E-02 6.136474E-07 1.996507E-03 2.818935E-02 5.404105E-03 # Covariance matrix: 3.1111E-12 3.9673E-09 -7.6844E-14 6.9522E-10 7.2152E-10 -8.2786E-09 3.9673E-09 5.7049E-06 -1.1667E-10 1.0004E-06 1.0274E-06 -1.6538E-05 -7.6844E-14 -1.1667E-10 3.0140E-13 -2.3943E-11 -2.0435E-11 6.2664E-10 6.9522E-10 1.0004E-06 -2.3943E-11 1.7559E-07 1.8002E-07 -2.9721E-06 7.2152E-10 1.0274E-06 -2.0435E-11 1.8002E-07 1.8587E-07 -2.5513E-06 -8.2786E-09 -1.6538E-05 6.2664E-10 -2.9721E-06 -2.5513E-06 2.6162E-04 # lat0 lon0 xBary yBary zBary JD0 18.471913 -179.473681 -0.234649 0.310173 -0.929181 2451637.856713 # Heliocentric elements and errors Epoch: 2451630.5000 = 2000/03/27 Mean Anomaly: 13.72440 +/- 29.332 Argument of Peri: 46.10273 +/- 80.926 Long of Asc Node: 101.50527 +/- 1.322 Inclination: 18.27771 +/- 0.067 Eccentricity: 0.39996733 +/- 0.3125 Semi-Major Axis: 57.72863492 +/- 16.7535 Time of Perihelion: 2445522.8219 +/- 12779.6 Perihelion: 34.63906699 +/- 20.6541 Aphelion: 80.81820285 +/- 29.5913 Period (y) 438.6268 +/- 190.94 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -34.61607434 +/- 0.5146 Ecliptic Y -0.54994412 +/- 0.0047 Ecliptic Z 11.23973137 +/- 0.1719 Ecliptic XDOT -0.00041227 +/- 0.0015 Ecliptic YDOT -0.00329251 +/- 0.0002 Ecliptic ZDOT 0.00035034 +/- 0.0005 # Distances at JD0 (AU) Heliocenter to KBO 36.39926651 +/- 0.4922 Geocenter to KBO 35.47439474 +/- 0.5425 # Hcoef: 8.04
The following table shows the complete astrometric record for 00GM147. 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 (00GM147) followed by the observatory code and reference code for the source of the astrometry.
2000 04 03.35597 12 32 10.39 +16 41 31.7 23.1R 00GM147 568 Cb4444 2000 04 03.39060 12 32 10.21 +16 41 32.4 23.1R 00GM147 568 Cb4444 2000 04 03.42646 12 32 10.03 +16 41 33.6 23.1R 00GM147 568 Cb4444 2000 04 04.45475 12 32 04.73 +16 42 01.3 23.2R 00GM147 568 Cb4444 2000 04 04.50881 12 32 04.45 +16 42 02.8 23.0R 00GM147 568 Cb4444 2000 05 06.38902 12 29 37.88 +16 49 50.4 23.9R 00GM147 568 Cb5789 2000 05 06.44318 12 29 37.67 +16 49 50.7 23.9R 00GM147 568 Cb5789
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 -2.64 0.08 -0.44 -0.12
3 0.0002 -5.49 0.09 -0.42 0.12
4 0.0030 -86.27 -0.07 -6.84 -0.09
5 0.0032 -90.55 -0.07 -7.14 -0.02
6 0.0904 -2200.57 0.05 -452.44 -0.09
7 0.0906 -2203.44 -0.05 -453.41 0.10
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.
00GM147 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