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: 06TK121 # Created Fri May 2 02:36:58 2008 # Orbit generated from Bernstein formalism # Fitting 15 observations of 15 # Arc: 90.80d # First observation: 2006/10/15 # Last observation: 2007/01/14 Preliminary a, adot, b, bdot, g, gdot: -0.000023 0.035479 0.000036 -0.013261 0.030126 0.000000 # Chi-squared of fit: 3.51 DOF: 24 RMS: 0.09 # Min/Max residuals: -0.18 0.23 # Exact a, adot, b, bdot, g, gdot: 1.613950E-05 2.960023E-02 -6.660254E-06 -1.212853E-02 2.934394E-02 -6.008980E-03 # Covariance matrix: 3.8719E-13 -5.1648E-12 -2.3996E-14 4.2216E-13 4.7179E-13 2.3652E-10 -5.1648E-12 1.5204E-09 8.8242E-12 -2.7401E-10 1.5472E-10 -3.1749E-08 -2.3996E-14 8.8242E-12 3.0856E-13 -2.9758E-12 8.9203E-13 -1.8811E-10 4.2216E-13 -2.7401E-10 -2.9758E-12 6.2408E-11 -3.0000E-11 5.4221E-09 4.7179E-13 1.5472E-10 8.9203E-13 -3.0000E-11 2.1998E-11 -2.1396E-09 2.3652E-10 -3.1749E-08 -1.8811E-10 5.4221E-09 -2.1396E-09 8.7181E-07 # lat0 lon0 xBary yBary zBary JD0 -16.627049 28.668751 0.119281 -0.284299 -0.952542 2454023.780344 # Heliocentric elements and errors Epoch: 2454020.5000 = 2006/10/12 Mean Anomaly: 305.51977 +/- 1.354 Argument of Peri: 294.16395 +/- 1.550 Long of Asc Node: 174.30575 +/- 0.033 Inclination: 27.30420 +/- 0.020 Eccentricity: 0.20878886 +/- 0.0304 Semi-Major Axis: 38.37127953 +/- 0.5646 Time of Perihelion: 2467158.9535 +/- 150.3 Perihelion: 30.35978392 +/- 1.2478 Aphelion: 46.38277513 +/- 1.3502 Period (y) 237.6937 +/- 5.25 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.57694236 +/- 0.0046 Ecliptic Y 16.03434726 +/- 0.0025 Ecliptic Z -9.75152932 +/- 0.0016 Ecliptic XDOT -0.00207550 +/- 0.0001 Ecliptic YDOT 0.00200559 +/- 0.0000 Ecliptic ZDOT -0.00092393 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.02839043 +/- 0.0041 Geocenter to KBO 34.07858323 +/- 0.0054 # Hcoef: 7.92
The following table shows the complete astrometric record for 06TK121. 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 (06TK121) followed by the observatory code and reference code for the source of the astrometry.
2006 10 15.27959 02 09 59.71 -04 34 11.9 23.1R 06TK121 807 Cv6280 2006 10 15.30276 02 09 59.59 -04 34 12.8 22.7I 06TK121 807 Cv6280 2006 10 19.30420 02 09 38.49 -04 36 49.0 23.4R 06TK121 807 Cv6280 2006 10 21.29087 02 09 27.88 -04 38 04.0 23.2R 06TK121 807 Cv6280 2006 10 21.31867 02 09 27.73 -04 38 05.1 22.6I 06TK121 807 Cv6280 2006 11 12.10143 02 07 31.54 -04 49 23.1 23.0R 06TK121 807 Cv6280 2006 11 12.12180 02 07 31.43 -04 49 23.4 22.8I 06TK121 807 Cv6280 2006 11 26.25153 02 06 22.74 -04 53 51.9 22.5I 06TK121 807 Cv6280 2006 12 13.12456 02 05 16.77 -04 55 47.5 23.2R 06TK121 807 Cv6280 2006 12 17.10763 02 05 04.51 -04 55 41.4 23.5R 06TK121 807 Cv6280 2006 12 19.12017 02 04 58.88 -04 55 33.3 23.4R 06TK121 807 Cv6280 2006 12 25.15166 02 04 44.32 -04 54 49.8 22.9I 06TK121 807 Cv6280 2007 01 11.09952 02 04 23.64 -04 50 18.9 23.3R 06TK121 807 Cv6280 2007 01 11.11979 02 04 23.63 -04 50 18.6 23.0I 06TK121 807 Cv6280 2007 01 14.08214 02 04 23.24 -04 49 10.3 22.8I 06TK121 807 Cv6280
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 0.03 2 0.0001 -2.00 0.01 -0.21 0.03 3 0.0110 -352.20 0.15 -36.09 0.02 4 0.0165 -527.05 -0.03 -50.83 0.02 5 0.0165 -529.53 -0.04 -51.07 -0.05 6 0.0762 -2393.98 -0.08 -79.01 -0.18 7 0.0762 -2395.63 -0.05 -78.72 0.02 8 0.1149 -3451.63 0.00 28.09 0.16 9 0.1611 -4416.32 0.23 263.60 0.07 10 0.1720 -4586.01 -0.06 333.19 -0.03 11 0.1775 -4662.09 0.05 370.11 -0.04 12 0.1940 -4851.01 -0.12 486.73 -0.14 13 0.2404 -5046.50 0.01 848.43 0.09 14 0.2405 -5046.54 -0.08 848.76 -0.03 15 0.2486 -5028.21 0.06 914.84 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.
06TK121 quality flag:1 Type: CENTAURS CENTAURR SCATNEAR axisobj 38.838 40.929 37.543 ecceobj 0.213 0.301 0.129 incobj 27.214 27.155 27.275 qmin 30.009 27.436 31.270 qmax 49.806 54.366 43.556 amean 39.210 40.653 37.271 amin 38.294 39.950 36.840 amax 40.583 41.200 37.731 emean 0.200 0.308 0.125 emin 0.167 0.293 0.089 emax 0.237 0.321 0.158 imean 27.538 26.222 27.337 imin 26.456 25.824 26.245 imax 28.595 26.672 28.268 fracstop 1.000 0.025 1.000 cjmean 2.751 2.734 2.768 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 176.2 309.2 178.7 kozaiamp 180.0 12.2 180.0