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: 60608 # Created Fri May 2 02:36:18 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 26 observations of 27 # Arc: 4.24y # First observation: 2000/03/03 # Last observation: 2004/05/28 # Chi-squared of fit: 36.57 DOF: 46 RMS: 0.21 # Min/Max residuals: -0.40 0.45 # Exact a, adot, b, bdot, g, gdot: 2.566168E-05 6.878547E-02 -1.244155E-06 -6.498370E-03 4.409147E-02 -1.331716E-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 -2.789960 139.805536 -0.395611 -0.044754 -0.914083 2451606.670953 # Heliocentric elements and errors Epoch: 2451605.5000 = 2000/03/02 Mean Anomaly: 352.65882 +/- 0.000 Argument of Peri: 235.20773 +/- 0.000 Long of Asc Node: 294.03311 +/- 0.000 Inclination: 5.94761 +/- 0.000 Eccentricity: 0.54011249 +/- 0.0000 Semi-Major Axis: 49.14457642 +/- 0.0000 Time of Perihelion: 2454171.6096 +/- 0.0 Perihelion: 22.60097698 +/- 0.0000 Aphelion: 75.68817586 +/- 0.0000 Period (y) 344.5257 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -18.25183950 +/- 0.0000 Ecliptic Y 14.91127728 +/- 0.0000 Ecliptic Z -1.10396935 +/- 0.0000 Ecliptic XDOT -0.00211656 +/- 0.0000 Ecliptic YDOT -0.00380140 +/- 0.0000 Ecliptic ZDOT -0.00036268 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 23.59447355 +/- 0.0000 Geocenter to KBO 22.68026825 +/- 0.0000 # Hcoef: 8.45
The following table shows the complete astrometric record for 60608. 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 (60608) followed by the observatory code and reference code for the source of the astrometry.
2000 03 03.17021 09 25 16.97 +12 13 31.1 22.8R 60608 695 Cb6922 2000 03 03.21813 09 25 16.64 +12 13 33.0 22.8R 60608 695 Cb6922 2000 03 03.26653 09 25 16.30 +12 13 34.4 22.8R 60608 695 Cb6922 2000 03 15.45933 09 23 57.92 +12 19 49.2 60608 568 Cb6923 2000 03 15.47773 09 23 57.80 +12 19 49.6 60608 568 Cb6923 2000 03 15.52000 09 23 57.57 +12 19 50.8 60608 568 Cb6923 2000 04 05.30954 09 22 23.49 +12 27 55.0 22.2R 60608 568 Cb6923 2000 04 05.41164 09 22 23.14 +12 27 56.5 22.3R 60608 568 Cb6923 2000 06 01.27097 09 23 45.57 +12 24 44.1 22.3R 60608 568 Cb6923 2000 06 01.27681 09 23 45.61 +12 24 44.0 22.4R 60608 568 Cb6923 2000 11 28.46155 09 48 47.93 +10 04 06.4 21.6R 60608 695 Cc2337 2000 11 28.53683 09 48 47.94 +10 04 05.4 21.7R 60608 695 Cc2337 2000 11 29.51238 09 48 48.15 +10 03 52.6 21.6R 60608 695 Cc2337 2001 02 15.02141 09 42 18.63 +10 26 09.7 60608 950 Cc6641 2001 02 15.97843 09 42 11.18 +10 26 45.0 21.4R 60608 950 Cc6641 2001 02 16.01921 09 42 10.86 +10 26 46.5 21.1R 60608 950 Cc6641 2002 01 14.21158 10 01 17.35 +08 26 12.8 22.0R 60608 950 Ce8748 2002 01 14.24452 10 01 17.15 +08 26 13.6 60608 950 Ce8748 2002 01 14.28194 10 01 16.94 +08 26 14.4 60608 950 Ce8748 2002 02 03.62106 09 58 58.15 +08 36 06.6 21.0R 60608 568 Cf1715 2002 02 04.52547 09 58 51.36 +08 36 37.5 60608 568 Cf1715 2002 02 05.51220 09 58 43.94 +08 37 12.1 60608 568 Cf1715 2002 02 12.94109 09 57 46.70 +08 41 41.3 60608 204 Ce8748 2003 03 02.33315 10 10 53.68 +07 05 45.5 60608 568 Ch5667 2003 03 02.36896 10 10 53.41 +07 05 47.0 60608 568 Ch5667 2004 05 28.98979 10 21 27.30 +05 50 50.1 20.3R 60608 304 Ck8907 2004 05 29.02358 10 21 27.39 +05 50 49.7 60608 304 Ck8907
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 0.12 0.00 -0.40 2 0.0001 0.00 -0.04 0.00 0.16 3 0.0003 0.00 0.02 0.00 -0.02 4 0.0336 0.00 0.02 0.00 0.06 5 0.0337 0.00 -0.14 0.00 -0.06 6 0.0338 0.00 0.15 0.00 -0.05 7 0.0907 0.00 -0.04 0.00 -0.04 8 0.0910 0.00 -0.35 0.00 -0.28 9 0.2467 0.00 0.06 0.00 -0.35 10 0.2467 0.00 0.16 0.00 -0.30 11 0.7400 0.00 0.19 0.00 0.16 12 0.7402 0.00 0.16 0.00 0.17 13 0.7429 0.00 0.25 0.00 0.10 14 0.9551 0.00 0.37 0.00 -0.12 15 0.9577 0.00 0.40 0.00 0.27 16 0.9578 0.00 0.45 0.00 0.28 17 1.8673 0.00 -0.02 0.00 0.05 18 1.8674 0.00 -0.03 0.00 0.10 19 1.8675 0.00 0.22 0.00 0.06 20 1.9232 0.00 -0.27 0.00 0.02 21 1.9257 0.00 -0.40 0.00 -0.31 22 1.9284 0.00 0.03 0.00 -0.13 23 1.9487 0.00 ( -2.87) 0.00 ( -0.43) 24 2.9957 0.00 0.06 0.00 0.23 25 2.9958 0.00 0.16 0.00 0.26 26 4.2377 0.00 0.05 0.00 -0.20 27 4.2378 0.00 -0.10 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.
60608 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 49.098 49.098 49.098 ecceobj 0.540 0.540 0.540 incobj 5.949 5.949 5.949 qmin 22.238 22.288 22.347 qmax 77.226 80.411 79.656 amean 48.498 49.945 49.993 amin 47.066 48.925 49.005 amax 49.955 51.632 51.292 emean 0.534 0.544 0.544 emin 0.520 0.533 0.536 emax 0.546 0.557 0.553 imean 8.071 8.509 8.775 imin 7.510 7.510 7.510 imax 8.397 9.128 9.543 fracstop 0.008 0.022 0.009 cjmean 2.745 2.739 2.739 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 246.2 260.8 246.4 kozaiamp 10.1 26.1 10.6