The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 01KO77 # Created Fri May 2 02:36:34 2008 # Orbit generated from Bernstein formalism # Fitting 13 observations of 13 # Arc: 4.04y # First observation: 2001/05/23 # Last observation: 2005/06/07 Preliminary a, adot, b, bdot, g, gdot: -0.000075 0.027840 -0.000048 0.010456 0.026673 0.000000 # Chi-squared of fit: 37.02 DOF: 20 RMS: 0.30 # Min/Max residuals: -0.73 0.44 # Exact a, adot, b, bdot, g, gdot: 1.693567E-05 2.762762E-02 4.524621E-06 1.037847E-02 2.712867E-02 -1.504374E-03 # Covariance matrix: 3.8966E-13 -1.4167E-13 -3.5121E-15 -7.3014E-15 3.4658E-13 -2.0784E-13 -1.4167E-13 6.5370E-13 -5.4345E-14 2.3282E-13 1.7288E-13 5.5395E-12 -3.5121E-15 -5.4345E-14 2.2045E-13 -8.4357E-14 -3.8858E-14 -5.2159E-13 -7.3014E-15 2.3282E-13 -8.4357E-14 1.2957E-13 1.1635E-13 2.1657E-12 3.4658E-13 1.7288E-13 -3.8858E-14 1.1635E-13 8.7592E-13 2.6918E-12 -2.0784E-13 5.5395E-12 -5.2159E-13 2.1657E-12 2.6918E-12 5.1425E-11 # lat0 lon0 xBary yBary zBary JD0 -2.456370 -120.820334 -0.051091 -0.043741 -1.016700 2452052.665493 # Heliocentric elements and errors Epoch: 2452050.5000 = 2001/05/21 Mean Anomaly: 342.75713 +/- 0.079 Argument of Peri: 16.21372 +/- 0.107 Long of Asc Node: 245.57184 +/- 0.000 Inclination: 20.78806 +/- 0.000 Eccentricity: 0.14080468 +/- 0.0001 Semi-Major Axis: 43.64707782 +/- 0.0073 Time of Perihelion: 2457095.2349 +/- 23.0 Perihelion: 37.50136485 +/- 0.0089 Aphelion: 49.79279078 +/- 0.0104 Period (y) 288.3639 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -19.34200996 +/- 0.0007 Ecliptic Y -32.52172443 +/- 0.0011 Ecliptic Z -1.57966257 +/- 0.0001 Ecliptic XDOT 0.00244076 +/- 0.0000 Ecliptic YDOT -0.00133453 +/- 0.0000 Ecliptic ZDOT 0.00105314 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.87177370 +/- 0.0010 Geocenter to KBO 36.86137358 +/- 0.0013 # Hcoef: 7.17
The following table shows the complete astrometric record for 01KO77. 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 (01KO77) followed by the observatory code and reference code for the source of the astrometry.
2001 05 23.16475 15 45 33.57 -22 22 17.4 22.5R 01KO77 807 Ce6595 2001 05 23.22862 15 45 33.21 -22 22 15.9 01KO77 807 Ce6595 2001 06 12.11955 15 43 48.17 -22 14 27.9 22.9 01KO77 304 Ce6595 2001 06 12.24378 15 43 47.57 -22 14 24.9 01KO77 304 Ce6595 2001 08 19.01992 15 41 11.58 -21 55 57.1 21.2R 01KO77 807 Ch1324 2001 08 20.01676 15 41 12.68 -21 55 51.0 01KO77 807 Ch1324 2001 08 21.02434 15 41 13.96 -21 55 45.2 01KO77 807 Ch1324 2003 05 31.39073 15 59 18.27 -21 49 11.2 23.7R 01KO77 568 Cn3253 2003 05 31.45532 15 59 17.89 -21 49 09.8 01KO77 568 Cn3253 2005 04 14.34392 16 17 37.28 -21 28 33.2 23.2R 01KO77 304 Cn3253 2005 04 14.36780 16 17 37.19 -21 28 32.5 01KO77 304 Cn3253 2005 06 07.07939 16 13 05.47 -21 11 54.6 23.3R 01KO77 304 Cn6472 2005 06 07.09563 16 13 05.39 -21 11 54.3 01KO77 304 Cn6472
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 -0.17 0.00 0.31 2 0.0002 -5.20 -0.22 0.36 0.31 3 0.0546 -1530.42 -0.05 133.37 0.20 4 0.0550 -1539.21 0.27 134.44 0.36 5 0.2405 -3901.66 -0.11 725.31 -0.33 6 0.2433 -3888.14 -0.30 734.74 -0.24 7 0.2460 -3872.11 0.29 744.43 0.03 8 2.0212 10803.49 0.43 4345.90 -0.66 9 2.0213 10798.01 0.14 4346.22 -0.73 10 3.8937 25773.24 0.00 8419.05 0.10 11 3.8938 25771.87 -0.02 8419.53 0.44 12 4.0408 21805.37 -0.20 8739.40 0.10 13 4.0409 21804.20 -0.07 8739.50 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.
01KO77 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 43.648 43.648 43.648 ecceobj 0.142 0.142 0.142 incobj 20.782 20.782 20.782 qmin 36.391 36.394 36.389 qmax 51.819 51.811 51.811 amean 43.939 43.939 43.939 amin 43.578 43.580 43.585 amax 44.351 44.346 44.351 emean 0.152 0.152 0.152 emin 0.137 0.136 0.136 emax 0.169 0.169 0.169 imean 21.900 21.900 21.900 imin 21.388 21.389 21.392 imax 22.375 22.376 22.375 fracstop 1.000 1.000 1.000 cjmean 2.901 2.901 2.901 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 172.6 172.5 172.4 kozaiamp 179.9 180.0 180.0