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: 119976 # Created Fri May 2 02:36:21 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 18 observations of 18 # Arc: 3.74y # First observation: 2002/11/07 # Last observation: 2006/08/03 # Chi-squared of fit: 70.21 DOF: 30 RMS: 0.35 # Min/Max residuals: -0.89 0.72 # Exact a, adot, b, bdot, g, gdot: 2.972431E-05 1.340804E-01 -2.219737E-06 -7.929084E-03 7.105933E-02 -1.656087E-02 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -1.218057 19.204522 -0.418735 -0.019065 -0.895029 2452585.648713 # Heliocentric elements and errors Epoch: 2452585.5000 = 2002/11/07 Mean Anomaly: 351.79134 +/- 0.000 Argument of Peri: 218.84733 +/- 0.000 Long of Asc Node: 181.89053 +/- 0.000 Inclination: 3.52332 +/- 0.000 Eccentricity: 0.38630836 +/- 0.0000 Semi-Major Axis: 23.99567996 +/- 0.0000 Time of Perihelion: 2453564.4668 +/- 0.0 Perihelion: 14.72594826 +/- 0.0000 Aphelion: 33.26541166 +/- 0.0000 Period (y) 117.5460 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 13.99317540 +/- 0.0000 Ecliptic Y 5.32335671 +/- 0.0000 Ecliptic Z -0.29916371 +/- 0.0000 Ecliptic XDOT -0.00231531 +/- 0.0000 Ecliptic YDOT 0.00466309 +/- 0.0000 Ecliptic ZDOT -0.00029166 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 14.97457143 +/- 0.0000 Geocenter to KBO 14.07283869 +/- 0.0000 # Hcoef: 10.93
The following table shows the complete astrometric record for 119976. 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 (119976) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.14797 01 12 44.96 +06 23 27.5 22.0R 119976 695 Cg8319 2002 11 07.25554 01 12 43.92 +06 23 21.0 119976 695 Cg8319 2002 11 28.15457 01 10 01.27 +06 06 20.7 22.6R 119976 688 Cg8319 2002 11 28.25486 01 10 00.67 +06 06 17.1 119976 688 Cg8319 2002 12 02.17344 01 09 39.40 +06 04 05.4 22.6R 119976 688 Cg8319 2002 12 02.26920 01 09 38.85 +06 04 02.1 119976 688 Cg8319 2003 01 03.08198 01 09 01.98 +06 00 33.0 22.5R 119976 688 Ch0066 2003 01 03.17440 01 09 02.25 +06 00 35.5 119976 688 Ch0066 2003 11 24.14643 01 39 58.61 +08 35 19.6 22.1R 119976 695 Cm1727 2003 11 24.22067 01 39 57.98 +08 35 16.3 119976 695 Cm1727 2004 11 20.23468 02 11 03.60 +10 58 34.1 22.4R 119976 568 Cm1727 2004 11 20.31509 02 11 02.78 +10 58 29.8 119976 568 Cm1727 2005 09 29.40339 02 51 52.43 +13 56 13.6 22.9R 119976 688 Co3857 2005 09 29.48598 02 51 51.81 +13 56 08.7 119976 688 Co3857 2006 08 03.19191 03 22 46.990 +15 55 27.94 22.4R 119976 500 2006 08 03.19630 03 22 47.034 +15 55 28.06 119976 500 2006 08 03.20070 03 22 47.071 +15 55 28.12 119976 500 2006 08 03.20510 03 22 47.105 +15 55 28.19 119976 500
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 0.34 0.00 0.72 2 0.0003 0.00 0.05 0.00 0.05 3 0.0575 0.00 0.34 0.00 -0.04 4 0.0578 0.00 0.47 0.00 0.00 5 0.0685 0.00 0.56 0.00 -0.07 6 0.0688 0.00 -0.23 0.00 -0.41 7 0.1559 0.00 -0.50 0.00 -0.37 8 0.1561 0.00 -0.15 0.00 0.43 9 1.0459 0.00 -0.09 0.00 0.05 10 1.0461 0.00 -0.08 0.00 0.26 11 2.0372 0.00 0.06 0.00 0.55 12 2.0374 0.00 0.19 0.00 0.47 13 2.8946 0.00 -0.26 0.00 0.21 14 2.8948 0.00 0.56 0.00 -0.89 15 3.7373 0.00 -0.08 0.00 -0.30 16 3.7373 0.00 0.05 0.00 -0.26 17 3.7373 0.00 0.06 0.00 -0.28 18 3.7373 0.00 0.04 0.00 -0.28
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.
119976 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 24.175 24.175 24.175 ecceobj 0.390 0.390 0.390 incobj 3.518 3.518 3.518 qmin 14.743 14.743 14.743 qmax 34.302 34.035 35.672 amean 24.485 24.427 24.740 amin 24.104 24.175 24.175 amax 24.822 24.757 25.776 emean 0.380 0.378 0.380 emin 0.372 0.373 0.372 emax 0.390 0.390 0.390 imean 3.505 3.456 3.644 imin 3.359 3.373 3.346 imax 3.675 3.565 4.170 fracstop 0.002 0.001 0.002 cjmean 2.896 2.898 2.892 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 243.4 230.3 236.4 kozaiamp 27.6 11.3 14.9