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: 119956 # Created Fri May 2 02:36:21 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 18 observations of 18 # Arc: 3.14y # First observation: 2002/08/10 # Last observation: 2005/10/01 # Chi-squared of fit: 39.12 DOF: 30 RMS: 0.26 # Min/Max residuals: -1.06 0.39 # Exact a, adot, b, bdot, g, gdot: 3.171626E-06 2.362875E-02 8.073452E-06 -7.930850E-04 2.433191E-02 4.395904E-03 # 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 -3.613391 -12.919238 0.504062 -0.055706 -0.882032 2452496.921483 # Heliocentric elements and errors Epoch: 2452495.5000 = 2002/08/09 Mean Anomaly: 68.76587 +/- 0.000 Argument of Peri: 152.43561 +/- 0.000 Long of Asc Node: 105.69531 +/- 0.000 Inclination: 4.05392 +/- 0.000 Eccentricity: 0.17224633 +/- 0.0000 Semi-Major Axis: 43.48283773 +/- 0.0000 Time of Perihelion: 2432490.1717 +/- 0.0 Perihelion: 35.99307835 +/- 0.0000 Aphelion: 50.97259710 +/- 0.0000 Period (y) 286.7378 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.72678643 +/- 0.0000 Ecliptic Y -9.85390094 +/- 0.0000 Ecliptic Z -2.58986602 +/- 0.0000 Ecliptic XDOT 0.00106235 +/- 0.0000 Ecliptic YDOT 0.00247970 +/- 0.0000 Ecliptic ZDOT -0.00012003 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.98176799 +/- 0.0000 Geocenter to KBO 41.09819792 +/- 0.0000 # Hcoef: 6.01
The following table shows the complete astrometric record for 119956. 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 (119956) followed by the observatory code and reference code for the source of the astrometry.
2002 08 10.42074 23 18 08.71 -08 25 43.7 21.2R 119956 807 Cg3357 2002 08 11.36045 23 18 05.00 -08 26 08.7 119956 807 Cg3357 2002 08 11.42039 23 18 04.76 -08 26 10.3 119956 807 Cg3357 2002 09 09.23780 23 16 02.83 -08 39 53.5 21.7R 119956 662 Cg5879 2002 09 09.33005 23 16 02.40 -08 39 56.1 119956 662 Cg5879 2002 11 04.10731 23 12 33.94 -08 59 43.4 22.3R 119956 688 Cg5879 2002 11 04.20792 23 12 33.68 -08 59 44.6 119956 688 Cg5879 2003 10 24.14093 23 18 08.33 -08 28 23.8 22.2R 119956 695 Cl4338 2003 10 24.26302 23 18 07.94 -08 28 25.7 119956 695 Cl4338 2004 08 23.15718 23 27 22.71 -07 33 18.6 22.5R 119956 304 Cl4338 2004 08 23.29061 23 27 22.15 -07 33 22.4 119956 304 Cl4338 2004 10 11.20928 23 23 52.68 -07 55 29.1 22.1R 119956 695 Cl8391 2004 10 11.29954 23 23 52.33 -07 55 31.3 119956 695 Cl8391 2005 08 09.17696 23 33 14.58 -06 57 37.4 21.5R 119956 807 Co3842 2005 08 10.16083 23 33 11.20 -06 58 02.9 119956 807 Co3842 2005 08 10.29664 23 33 10.73 -06 58 06.5 119956 807 Co3842 2005 10 01.25077 23 29 33.28 -07 22 18.3 22.0R 119956 688 Co3842 2005 10 01.34809 23 29 32.88 -07 22 20.9 119956 688 Co3842
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 -0.18 0.00 -1.06 2 0.0026 0.00 0.09 0.00 -0.33 3 0.0027 0.00 -0.08 0.00 -0.32 4 0.0816 0.00 0.25 0.00 0.33 5 0.0819 0.00 0.12 0.00 0.39 6 0.2346 0.00 0.13 0.00 0.28 7 0.2349 0.00 -0.30 0.00 0.04 8 1.2039 0.00 0.04 0.00 -0.14 9 1.2042 0.00 0.00 0.00 -0.10 10 2.0362 0.00 0.32 0.00 -0.10 11 2.0366 0.00 0.28 0.00 -0.09 12 2.1705 0.00 -0.11 0.00 0.18 13 2.1708 0.00 -0.09 0.00 -0.07 14 2.9973 0.00 -0.07 0.00 0.10 15 3.0000 0.00 -0.09 0.00 -0.06 16 3.0003 0.00 0.06 0.00 -0.14 17 3.1426 0.00 0.00 0.00 0.25 18 3.1429 0.00 0.25 0.00 0.12
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.
119956 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 43.839 43.839 43.839 ecceobj 0.174 0.174 0.173 incobj 4.051 4.051 4.051 qmin 35.382 35.381 35.383 qmax 52.724 52.711 52.737 amean 43.727 43.727 43.727 amin 43.225 43.225 43.226 amax 44.273 44.289 44.263 emean 0.178 0.178 0.178 emin 0.165 0.165 0.165 emax 0.191 0.191 0.192 imean 2.510 2.507 2.514 imin 1.597 1.579 1.595 imax 3.639 3.632 3.643 fracstop 1.000 1.000 1.000 cjmean 3.058 3.057 3.058 libcent 0 178.8 179.2 180.3 libamp 0 128.9 128.1 129.2 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 157.2 163.1 153.0 kozaiamp 179.9 180.0 180.0