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: 129772
# Created Fri May 2 02:36:21 2008
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 17 observations of 17
# Arc: 7.03y
# First observation: 1999/04/17
# Last observation: 2006/04/28
# Chi-squared of fit: 58.11 DOF: 28 RMS: 0.33
# Min/Max residuals: -0.43 1.00
# Exact a, adot, b, bdot, g, gdot:
1.485828E-05 2.378198E-02 5.587496E-07 -3.930653E-04 2.421583E-02 -4.539482E-04
# 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
3.231050 -169.987303 -0.287870 0.054405 -0.967938 2451285.666123
# Heliocentric elements and errors
Epoch: 2451285.5000 = 1999/04/17
Mean Anomaly: 336.07820 +/- 0.000
Argument of Peri: 132.41961 +/- 0.000
Long of Asc Node: 83.25870 +/- 0.000
Inclination: 3.30412 +/- 0.000
Eccentricity: 0.02869715 +/- 0.0000
Semi-Major Axis: 43.38817859 +/- 0.0000
Time of Perihelion: 2458222.1045 +/- 0.0
Perihelion: 42.14306146 +/- 0.0000
Aphelion: 44.63329572 +/- 0.0000
Period (y) 285.8020 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.49809006 +/- 0.0000
Ecliptic Y -7.62044740 +/- 0.0000
Ecliptic Z 2.32754920 +/- 0.0000
Ecliptic XDOT 0.00051304 +/- 0.0000
Ecliptic YDOT -0.00263061 +/- 0.0000
Ecliptic ZDOT -0.00004724 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.25613360 +/- 0.0000
Geocenter to KBO 41.29534871 +/- 0.0000
# Hcoef: 6.96
The following table shows the complete astrometric record for 129772. 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 (129772) followed by the observatory code and reference code for the source of the astrometry.
1999 04 17.16538 12 41 52.69 -00 59 36.5 22.9R 129772 695 Ca4929 1999 04 17.24112 12 41 52.36 -00 59 34.0 129772 695 Ca4929 1999 04 17.32756 12 41 51.96 -00 59 31.5 129772 695 Ca4929 1999 05 05.88876 12 40 38.70 -00 52 29.2 129772 950 Ca4929 1999 05 05.94958 12 40 38.47 -00 52 27.4 129772 950 Ca4929 1999 05 06.02539 12 40 38.19 -00 52 26.5 129772 950 Ca4929 2000 05 24.34600 12 44 36.60 -01 20 28.7 129772 568 Cb5145 2000 05 25.28619 12 44 34.32 -01 20 18.1 129772 568 Cb5145 2000 05 25.36389 12 44 34.13 -01 20 17.2 129772 568 Cb5145 2001 02 25.57087 12 55 18.47 -02 28 33.5 23.3R 129772 568 Cd0744 2001 02 25.61520 12 55 18.32 -02 28 32.4 129772 568 Cd0744 2003 04 29.35971 13 00 57.23 -03 07 15.8 23.1R 129772 568 Ch9559 2003 04 30.37382 13 00 53.11 -03 06 52.4 129772 568 Ch9559 2003 04 30.43793 13 00 52.84 -03 06 50.9 129772 568 Ch9559 2006 04 27.18166 13 16 09.70 -04 47 04.6 22.2R 129772 807 Cr3547 2006 04 28.06387 13 16 05.95 -04 46 43.9 129772 807 Cr3547 2006 04 28.15679 13 16 05.56 -04 46 41.5 129772 807 Cr3547
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 1.00 2 0.0002 0.00 0.09 0.00 0.33 3 0.0004 0.00 -0.27 0.00 0.62 4 0.0513 0.00 0.54 0.00 -0.20 5 0.0514 0.00 0.39 0.00 0.41 6 0.0516 0.00 0.32 0.00 -0.17 7 1.1038 0.00 -0.36 0.00 -0.43 8 1.1064 0.00 -0.36 0.00 -0.35 9 1.1066 0.00 -0.33 0.00 -0.30 10 1.8628 0.00 0.03 0.00 0.01 11 1.8630 0.00 0.06 0.00 0.05 12 4.0334 0.00 0.12 0.00 -0.08 13 4.0362 0.00 0.20 0.00 -0.09 14 4.0363 0.00 0.12 0.00 -0.06 15 7.0281 0.00 -0.16 0.00 0.45 16 7.0305 0.00 0.04 0.00 -0.20 17 7.0308 0.00 0.24 0.00 -0.04
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.
129772 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.414 43.414 43.414 ecceobj 0.029 0.029 0.029 incobj 3.305 3.305 3.305 qmin 41.621 41.568 41.611 qmax 46.028 46.089 46.043 amean 43.726 43.725 43.725 amin 43.382 43.388 43.388 amax 44.078 44.077 44.072 emean 0.034 0.034 0.034 emin 0.022 0.023 0.022 emax 0.045 0.046 0.045 imean 1.641 1.642 1.639 imin 0.863 0.863 0.863 imax 2.267 2.295 2.265 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 178.3 185.8 178.0 kozaiamp 180.0 180.0 179.9