The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 60458
# Created Sun Nov 22 02:37:00 2009
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 36 observations of 36
# Arc: 7.95y
# First observation: 2000/02/05
# Last observation: 2008/01/18
# Chi-squared of fit: 284.66 DOF: 66 RMS: 0.50
# Min/Max residuals: -0.81 0.97
# Exact a, adot, b, bdot, g, gdot:
1.491272E-05 2.191857E-02 -5.423067E-06 -7.853138E-03 2.317791E-02 -7.940067E-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
0.002658 132.244090 -0.065924 -0.000163 -0.986587 2451579.672633
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 327.39103 +/- 0.000
Argument of Peri: 251.29620 +/- 0.000
Long of Asc Node: 312.32761 +/- 0.000
Inclination: 19.70552 +/- 0.000
Eccentricity: 0.40073803 +/- 0.0000
Semi-Major Axis: 59.32460070 +/- 0.0000
Time of Perihelion: 2466698.1843 +/- 0.0
Perihelion: 35.55097724 +/- 0.0000
Aphelion: 83.09822417 +/- 0.0000
Period (y) 456.9413 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -29.71126532 +/- 0.0000
Ecliptic Y 32.62801228 +/- 0.0000
Ecliptic Z 0.00177403 +/- 0.0000
Ecliptic XDOT -0.00129183 +/- 0.0000
Ecliptic YDOT -0.00242777 +/- 0.0000
Ecliptic ZDOT -0.00092758 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.12897874 +/- 0.0000
Geocenter to KBO 43.14479528 +/- 0.0000
# Hcoef: 6.84
The following table shows the complete astrometric record for 60458. 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 (60458) followed by the observatory code and reference code for the source of the astrometry.
2000 02 05.17189 08 58 49.88 +17 07 41.8 22.8R 60458 695 Cb4132 2000 02 05.28382 08 58 49.33 +17 07 43.3 60458 695 Cb4132 2000 03 30.16035 08 55 20.78 +17 18 01.0 23.5R 60458 695 Cb4132 2000 03 30.24751 08 55 20.58 +17 18 01.3 60458 695 Cb4132 2000 12 27.41163 09 06 16.215 +16 10 47.42 22.2R 60458 568 Cl5056 2000 12 28.40486 09 06 12.572 +16 10 58.13 22.5R 60458 568 Cl5056 2001 03 24.20123 09 00 06.02 +16 30 32.7 22.8R 60458 695 f4565 2001 03 24.30328 09 00 05.72 +16 30 33.5 60458 695 f4565 2002 02 06.19144 09 07 49.76 +15 31 49.1 22.4R 60458 695 Ce8743 2002 02 06.28058 09 07 49.33 +15 31 50.4 60458 695 Ce8743 2002 02 07.26681 09 07 44.53 +15 32 06.7 60458 695 Ce8743 2003 03 03.31846 09 10 31.48 +14 48 45.7 60458 568 Ch5665 2003 03 03.36878 09 10 31.26 +14 48 46.5 60458 568 Ch5665 2006 01 19.27742 09 27 57.27 +12 00 25.4 23.1R 60458 250 S~06Fb 2006 01 19.28182 09 27 57.24 +12 00 25.5 60458 250 S~06Fb 2006 01 19.28622 09 27 57.22 +12 00 25.6 60458 250 S~06Fb 2006 01 19.29062 09 27 57.20 +12 00 25.6 60458 250 S~06Fb 2007 10 19.80321 09 39 00.67 +10 18 20.7 23.8R 60458 250 S~06Fb 2007 10 19.81085 09 39 00.69 +10 18 20.5 60458 250 S~06Fb 2007 10 19.81918 09 39 00.72 +10 18 20.3 60458 250 S~06Fb 2007 10 19.82682 09 39 00.74 +10 18 20.1 60458 250 S~06Fb 2007 10 25.73098 09 39 17.73 +10 15 56.1 60458 250 S~06Fb 2007 10 25.73862 09 39 17.75 +10 15 55.9 60458 250 S~06Fb 2007 10 25.74626 09 39 17.77 +10 15 55.7 60458 250 S~06Fb 2007 10 25.75390 09 39 17.79 +10 15 55.5 60458 250 S~06Fb 2007 12 06.17751 09 39 46.55 +10 06 05.2 60458 250 S~06Fb 2007 12 06.18515 09 39 46.54 +10 06 05.2 60458 250 S~06Fb 2007 12 06.24140 09 39 46.47 +10 06 04.9 60458 250 S~06Fb 2007 12 06.24904 09 39 46.46 +10 06 04.9 60458 250 S~06Fb 2008 01 18.31490 09 37 37.37 +10 10 09.5 60458 250 S~06Fb 2008 01 18.32254 09 37 37.33 +10 10 09.7 60458 250 S~06Fb 2008 01 18.38295 09 37 37.07 +10 10 10.6 60458 250 S~06Fb 2008 01 18.39198 09 37 37.03 +10 10 10.7 60458 250 S~06Fb 2008 01 18.44962 09 37 36.78 +10 10 11.5 60458 250 S~06Fb 2008 01 18.45726 09 37 36.75 +10 10 11.6 60458 250 S~06Fb 2008 01 18.46351 09 37 36.72 +10 10 11.6 60458 250 S~06Fb
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 0.59 2 0.0003 0.00 0.05 0.00 -0.26 3 0.1478 0.00 0.53 0.00 0.13 4 0.1481 0.00 0.52 0.00 0.03 5 0.8932 0.00 -0.21 0.00 0.36 6 0.8959 0.00 -0.13 0.00 0.23 7 1.1308 0.00 0.63 0.00 -0.17 8 1.1311 0.00 0.50 0.00 -0.14 9 2.0042 0.00 -0.51 0.00 0.37 10 2.0044 0.00 -0.39 0.00 0.18 11 2.0071 0.00 -0.70 0.00 0.15 12 3.0723 0.00 -0.43 0.00 0.01 13 3.0724 0.00 -0.46 0.00 0.05 14 5.9551 0.00 0.66 0.00 -0.81 15 5.9551 0.00 0.50 0.00 -0.77 16 5.9551 0.00 0.50 0.00 -0.74 17 5.9552 0.00 0.50 0.00 -0.81 18 7.7033 0.00 -0.72 0.00 -0.65 19 7.7033 0.00 -0.78 0.00 -0.66 20 7.7033 0.00 -0.71 0.00 -0.64 21 7.7034 0.00 -0.77 0.00 -0.65 22 7.7195 0.00 0.97 0.00 0.67 23 7.7196 0.00 0.97 0.00 0.65 24 7.7196 0.00 0.97 0.00 0.63 25 7.7196 0.00 0.97 0.00 0.61 26 7.8330 0.00 0.04 0.00 -0.05 27 7.8330 0.00 0.04 0.00 -0.02 28 7.8332 0.00 0.05 0.00 -0.08 29 7.8332 0.00 0.05 0.00 -0.05 30 7.9511 0.00 -0.17 0.00 0.29 31 7.9511 0.00 -0.27 0.00 0.38 32 7.9513 0.00 -0.20 0.00 0.42 33 7.9513 0.00 -0.21 0.00 0.39 34 7.9515 0.00 -0.18 0.00 0.37 35 7.9515 0.00 -0.13 0.00 0.37 36 7.9515 0.00 -0.17 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.
60458 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 59.300 59.299 59.300 ecceobj 0.401 0.401 0.401 incobj 19.708 19.708 19.708 qmin 35.357 35.377 35.379 qmax 83.960 83.969 83.992 amean 59.501 59.497 59.476 amin 59.306 59.323 59.304 amax 59.719 59.727 59.710 emean 0.397 0.395 0.395 emin 0.384 0.381 0.381 emax 0.407 0.407 0.407 imean 21.602 21.730 21.724 imin 21.042 21.100 21.101 imax 22.272 22.591 22.558 excite_mean 0.541 0.542 0.541 fracstop 1.000 1.000 1.000 cjmean 2.905 2.904 2.904 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 180.4 177.5 178.0 kozaiamp 180.0 180.0 180.0