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: 148209
# Created Fri May 2 02:36:24 2008
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 52 observations of 52
# Arc: 6.87y
# First observation: 2000/02/06
# Last observation: 2006/12/21
# Chi-squared of fit: 151.03 DOF: 98 RMS: 0.30
# Min/Max residuals: -0.60 1.31
# Exact a, adot, b, bdot, g, gdot:
1.533076E-05 1.895970E-02 5.883795E-06 7.876241E-03 1.932032E-02 8.449646E-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
2.934509 135.134493 -0.035916 0.050390 -0.987172 2451580.807113
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 3.68817 +/- 0.000
Argument of Peri: 316.50564 +/- 0.000
Long of Asc Node: 128.27899 +/- 0.000
Inclination: 22.75807 +/- 0.000
Eccentricity: 0.80544158 +/- 0.0000
Semi-Major Axis: 226.33301914 +/- 0.0000
Time of Perihelion: 2438838.7524 +/- 0.0
Perihelion: 44.03499528 +/- 0.0000
Aphelion: 408.63104300 +/- 0.0000
Period (y) 3405.1016 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -37.35635594 +/- 0.0000
Ecliptic Y 37.13955755 +/- 0.0000
Ecliptic Z 2.65008788 +/- 0.0000
Ecliptic XDOT -0.00270808 +/- 0.0000
Ecliptic YDOT -0.00109387 +/- 0.0000
Ecliptic ZDOT 0.00117607 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 52.74304758 +/- 0.0000
Geocenter to KBO 51.75865442 +/- 0.0000
# Hcoef: 6.17
The following table shows the complete astrometric record for 148209. 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 (148209) followed by the observatory code and reference code for the source of the astrometry.
2000 02 06.30637 09 14 02.39 +19 05 58.7 22.5R 148209 695 Cb1115 2000 02 06.43541 09 14 01.90 +19 06 01.4 148209 695 Cb1115 2000 02 27.12907 09 12 44.37 +19 13 04.6 23.0R 148209 695 Cb1115 2000 02 27.22612 09 12 43.98 +19 13 06.3 148209 695 Cb1115 2000 03 28.38346 09 11 17.68 +19 20 37.4 148209 568 Cb2242 2000 03 28.40927 09 11 17.63 +19 20 37.6 148209 568 Cb2242 2000 03 28.43164 09 11 17.59 +19 20 37.9 148209 568 Cb2242 2000 03 29.23055 09 11 15.99 +19 20 46.3 148209 568 Cb2242 2000 03 29.25196 09 11 15.95 +19 20 46.5 23.1R 148209 568 Cb2242 2000 03 29.27248 09 11 15.91 +19 20 46.7 23.4R 148209 568 Cb2242 2000 11 24.30080 09 22 07.39 +18 49 14.6 148209 809 Cc7839 2000 11 25.30941 09 22 06.97 +18 49 25.1 148209 809 Cc7839 2000 11 27.48283 09 22 05.77 +18 49 49.1 23.5R 148209 675 Cc7839 2000 11 27.54557 09 22 05.73 +18 49 49.1 23.7R 148209 675 Cc7839 2000 11 28.48968 09 22 05.11 +18 49 59.8 24.1R 148209 675 Cc7839 2000 11 28.52381 09 22 05.08 +18 50 00.3 23.6R 148209 675 Cc7839 2000 12 17.45692 09 21 38.68 +18 54 34.5 23.0R 148209 695 Cc7839 2000 12 17.49240 09 21 38.62 +18 54 34.9 23.2R 148209 695 Cc7839 2000 12 17.53331 09 21 38.54 +18 54 35.9 23.4R 148209 695 Cc7839 2000 12 18.43274 09 21 36.63 +18 54 51.1 23.0R 148209 695 Cc7839 2000 12 18.50613 09 21 36.52 +18 54 52.2 22.8R 148209 695 Cc7839 2000 12 27.42094 09 21 15.164 +18 57 37.09 23.3R 148209 568 Cl4103 2000 12 28.41398 09 21 12.509 +18 57 56.47 148209 568 Cl4103 2001 01 20.39079 09 19 58.51 +19 06 04.4 23.1R 148209 675 Cc7839 2001 01 20.39910 09 19 58.46 +19 06 04.6 148209 675 Cc7839 2001 01 20.46716 09 19 58.24 +19 06 06.2 23.1R 148209 675 Cc7839 2001 02 15.99209 09 18 17.96 +19 15 46.4 23.7R 148209 950 Cc7839 2001 02 16.03317 09 18 17.80 +19 15 47.2 23.4R 148209 950 Cc7839 2001 02 16.08746 09 18 17.59 +19 15 48.4 23.5R 148209 950 Cc7839 2001 02 23.15703 09 17 51.48 +19 18 11.2 23.3R 148209 309 Cc7839 2001 02 24.12793 09 17 47.96 +19 18 30.1 148209 309 Cc7839 2001 02 24.24770 09 17 47.52 +19 18 32.4 148209 309 Cc7839 2001 02 25.38156 09 17 43.48 +19 18 54.0 23.0R 148209 568 Cd0809 2001 02 25.42712 09 17 43.32 +19 18 54.8 148209 568 Cd0809 2001 03 24.14084 09 16 22.32 +19 25 57.2 23.2R 148209 695 Cc7839 2001 03 24.31582 09 16 21.88 +19 25 59.3 148209 695 Cc7839 2001 03 29.14814 09 16 11.17 +19 26 53.5 23.5R 148209 695 Cc7839 2001 03 30.14350 09 16 09.16 +19 27 03.6 148209 695 Cc7839 2001 03 31.13533 09 16 07.21 +19 27 13.8 23.5R 148209 695 Cc7839 2001 12 12.15628 09 26 35.96 +18 58 23.1 148209 950 Ce3129 2001 12 12.19915 09 26 35.90 +18 58 23.8 148209 950 Ce3129 2001 12 12.23953 09 26 35.84 +18 58 24.5 23.4R 148209 950 Ce3129 2001 12 13.16493 09 26 34.33 +18 58 39.2 23.4R 148209 950 Ce3129 2001 12 13.20038 09 26 34.28 +18 58 39.7 148209 950 Ce3129 2001 12 17.29862 09 26 26.93 +18 59 48.0 20.3 148209 304 Ce8743 2001 12 17.31714 09 26 26.91 +18 59 48.7 148209 304 Ce8743 2002 02 09.16317 09 23 36.07 +19 18 45.5 148209 304 Ce8743 2002 02 09.21371 09 23 35.88 +19 18 46.4 23.4R 148209 304 Ce8743 2002 02 14.16733 09 23 17.03 +19 20 33.1 21.3R 148209 304 f1711 2002 02 14.19102 09 23 16.94 +19 20 33.5 148209 304 f1711 2006 12 21.38351 09 49 09.12 +19 19 52.0 24.1R 148209 695 Ct5419 2006 12 21.52397 09 49 08.82 +19 19 55.6 148209 695 Ct5419
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 -0.08 0.00 0.77 2 0.0004 0.00 0.37 0.00 -0.01 3 0.0570 0.00 0.42 0.00 0.03 4 0.0573 0.00 -0.22 0.00 -0.11 5 0.1398 0.00 0.03 0.00 -0.05 6 0.1399 0.00 0.09 0.00 -0.11 7 0.1400 0.00 0.19 0.00 -0.05 8 0.1422 0.00 0.09 0.00 -0.01 9 0.1422 0.00 0.15 0.00 -0.03 10 0.1423 0.00 0.18 0.00 -0.04 11 0.7994 0.00 -0.01 0.00 0.25 12 0.8022 0.00 0.05 0.00 0.31 13 0.8081 0.00 -0.22 0.00 0.81 14 0.8083 0.00 -0.17 0.00 0.11 15 0.8109 0.00 -0.07 0.00 0.02 16 0.8110 0.00 -0.13 0.00 0.12 17 0.8628 0.00 0.16 0.00 -0.17 18 0.8629 0.00 0.39 0.00 -0.38 19 0.8630 0.00 0.48 0.00 -0.08 20 0.8655 0.00 -0.16 0.00 -0.43 21 0.8657 0.00 0.59 0.00 -0.60 22 0.8901 0.00 -0.29 0.00 -0.23 23 0.8928 0.00 -0.22 0.00 -0.22 24 0.9557 0.00 -0.06 0.00 0.29 25 0.9558 0.00 -0.35 0.00 0.30 26 0.9560 0.00 0.11 0.00 0.39 27 1.0286 0.00 -0.02 0.00 -0.09 28 1.0287 0.00 -0.06 0.00 -0.15 29 1.0288 0.00 -0.10 0.00 -0.07 30 1.0482 0.00 0.05 0.00 0.09 31 1.0508 0.00 -0.24 0.00 0.12 32 1.0512 0.00 -0.27 0.00 0.11 33 1.0543 0.00 -0.15 0.00 0.03 34 1.0544 0.00 -0.07 0.00 -0.04 35 1.1275 0.00 -0.04 0.00 -0.09 36 1.1280 0.00 -0.27 0.00 -0.08 37 1.1413 0.00 -0.45 0.00 -0.10 38 1.1440 0.00 -0.23 0.00 -0.22 39 1.1467 0.00 -0.16 0.00 0.12 40 1.8476 0.00 -0.27 0.00 -0.05 41 1.8478 0.00 -0.11 0.00 -0.03 42 1.8479 0.00 -0.01 0.00 0.03 43 1.8504 0.00 -0.22 0.00 -0.01 44 1.8505 0.00 -0.05 0.00 -0.08 45 1.8617 0.00 0.03 0.00 -0.08 46 1.8618 0.00 0.28 0.00 0.30 47 2.0092 0.00 1.23 0.00 -0.04 48 2.0093 0.00 1.31 0.00 -0.24 49 2.0229 0.00 -0.17 0.00 -0.05 50 2.0230 0.00 -0.16 0.00 -0.15 51 6.8722 0.00 0.33 0.00 -0.49 52 6.8726 0.00 -0.37 0.00 0.51
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.
148209 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 225.945 225.952 225.938 ecceobj 0.805 0.805 0.805 incobj 22.761 22.761 22.761 qmin 42.250 42.159 42.317 qmax 426.716 425.599 425.656 amean 222.926 221.725 222.956 amin 216.349 213.810 216.035 amax 235.437 234.887 234.886 emean 0.800 0.799 0.800 emin 0.791 0.789 0.791 emax 0.812 0.812 0.812 imean 21.204 21.563 21.223 imin 20.838 20.891 20.846 imax 21.654 22.353 21.728 fracstop 1.000 1.000 1.000 cjmean 3.178 3.170 3.178 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 324.5 332.4 326.3 kozaiamp 8.0 17.0 10.5