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: 60454 # Created Fri May 2 02:36:18 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 6.07y # First observation: 2000/02/05 # Last observation: 2006/03/02 # Chi-squared of fit: 73.38 DOF: 40 RMS: 0.32 # Min/Max residuals: -0.55 1.13 # Exact a, adot, b, bdot, g, gdot: 1.506901E-05 2.197040E-02 2.499259E-07 -4.150633E-04 2.318330E-02 -1.665114E-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 -0.428092 161.791358 0.425324 -0.006892 -0.892692 2451579.916703 # Heliocentric elements and errors Epoch: 2451580.5000 = 2000/02/06 Mean Anomaly: 277.05277 +/- 0.000 Argument of Peri: 293.55163 +/- 0.000 Long of Asc Node: 320.10304 +/- 0.000 Inclination: 1.16336 +/- 0.000 Eccentricity: 0.08258826 +/- 0.0000 Semi-Major Axis: 44.17149121 +/- 0.0000 Time of Perihelion: 2476286.9808 +/- 0.0 Perihelion: 40.52344465 +/- 0.0000 Aphelion: 47.81953777 +/- 0.0000 Period (y) 293.5765 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -41.68175730 +/- 0.0000 Ecliptic Y 14.16362540 +/- 0.0000 Ecliptic Z -0.32225104 +/- 0.0000 Ecliptic XDOT -0.00062929 +/- 0.0000 Ecliptic YDOT -0.00251911 +/- 0.0000 Ecliptic ZDOT -0.00004744 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.02369485 +/- 0.0000 Geocenter to KBO 43.13457248 +/- 0.0000 # Hcoef: 6.24
The following table shows the complete astrometric record for 60454. 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 (60454) followed by the observatory code and reference code for the source of the astrometry.
2000 02 05.41596 10 52 10.01 +06 44 39.4 22.0R 60454 695 Cb1115 2000 02 05.52102 10 52 09.59 +06 44 42.0 60454 695 Cb1115 2000 03 01.28777 10 50 24.89 +06 55 12.8 22.5R 60454 695 Cb1115 2000 03 01.37240 10 50 24.47 +06 55 14.7 60454 695 Cb1115 2000 04 10.14771 10 47 45.78 +07 11 21.4 24.2R 60454 695 Cb4131 2000 04 10.23363 10 47 45.47 +07 11 22.5 60454 695 Cb4131 2001 02 25.48097 10 55 22.53 +06 23 15.3 22.7R 60454 568 Cd0809 2001 02 25.52039 10 55 22.34 +06 23 16.1 60454 568 Cd0809 2001 03 24.19064 10 53 27.64 +06 34 57.3 22.5R 60454 695 Cd0809 2001 03 24.34426 10 53 27.00 +06 35 01.0 60454 695 Cd0809 2002 02 04.59727 11 01 30.17 +05 43 55.3 22.1R 60454 568 Cf1711 2002 02 05.54521 11 01 26.62 +05 44 16.9 60454 568 Cf1711 2002 02 05.60646 11 01 26.38 +05 44 18.4 60454 568 Cf1711 2002 02 08.36435 11 01 15.79 +05 45 23.1 22.5R 60454 695 Ch1183 2002 02 15.22902 11 00 48.04 +05 48 12.2 20.5R 60454 304 f1711 2002 02 15.25108 11 00 47.94 +05 48 12.8 60454 304 f1711 2002 03 18.29452 10 58 33.67 +06 01 57.3 22.2R 60454 695 Cf4565 2002 03 20.21598 10 58 25.56 +06 02 47.1 60454 695 Cf4565 2002 03 20.34215 10 58 25.04 +06 02 50.4 60454 695 Cf4565 2003 03 30.22932 11 02 27.18 +05 36 14.6 22.3R 60454 695 Ch7880 2003 03 30.32694 11 02 26.81 +05 36 17.0 60454 695 Ch7880 2006 03 02.39120 11 18 33.68 +03 50 14.5 21.8R 60454 695 Cq7876 2006 03 02.49559 11 18 33.22 +03 50 17.2 60454 695 Cq7876
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 1.13 2 0.0003 0.00 -0.09 0.00 0.05 3 0.0681 0.00 0.35 0.00 0.11 4 0.0683 0.00 -0.27 0.00 -0.25 5 0.1772 0.00 0.40 0.00 0.54 6 0.1775 0.00 -0.06 0.00 -0.03 7 1.0570 0.00 0.38 0.00 0.39 8 1.0571 0.00 0.16 0.00 0.14 9 1.1301 0.00 0.02 0.00 0.04 10 1.1305 0.00 -0.12 0.00 -0.06 11 1.9991 0.00 -0.55 0.00 -0.41 12 2.0017 0.00 -0.16 0.00 -0.51 13 2.0019 0.00 -0.20 0.00 -0.41 14 2.0094 0.00 0.45 0.00 -0.26 15 2.0282 0.00 0.03 0.00 -0.13 16 2.0283 0.00 -0.07 0.00 -0.09 17 2.1133 0.00 0.22 0.00 0.01 18 2.1185 0.00 0.04 0.00 -0.26 19 2.1189 0.00 0.31 0.00 -0.23 20 3.1453 0.00 -0.13 0.00 0.52 21 3.1455 0.00 0.16 0.00 0.53 22 6.0697 0.00 0.08 0.00 0.07 23 6.0700 0.00 0.08 0.00 -0.08
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.
60454 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.160 44.160 44.160 ecceobj 0.083 0.083 0.083 incobj 1.164 1.164 1.164 qmin 39.960 39.991 39.957 qmax 49.044 49.037 49.037 amean 44.380 44.380 44.381 amin 44.030 44.027 44.023 amax 44.754 44.754 44.754 emean 0.080 0.080 0.080 emin 0.064 0.064 0.064 emax 0.096 0.096 0.096 imean 2.814 2.814 2.814 imin 2.094 2.094 2.094 imax 3.487 3.490 3.486 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 176.7 176.8 176.7 kozaiamp 179.9 180.0 179.9