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: 01RW143 # Created Fri May 2 02:36:35 2008 # Orbit generated from Bernstein formalism # Fitting 13 observations of 13 # Arc: 6.16y # First observation: 2001/09/12 # Last observation: 2007/11/11 Preliminary a, adot, b, bdot, g, gdot: -0.000131 0.024361 0.000002 -0.000580 0.024259 0.000000 # Chi-squared of fit: 27.06 DOF: 20 RMS: 0.26 # Min/Max residuals: -0.51 0.44 # Exact a, adot, b, bdot, g, gdot: 1.429615E-05 2.433876E-02 -4.714902E-07 -5.773555E-04 2.457670E-02 3.791347E-04 # Covariance matrix: 3.2827E-13 -2.1192E-13 -3.4966E-15 5.3612E-15 1.9176E-13 -1.5081E-12 -2.1192E-13 4.3568E-13 4.7890E-15 -1.1384E-14 -1.0049E-14 3.2563E-12 -3.4966E-15 4.7890E-15 1.6904E-13 -3.7391E-14 -3.3363E-15 4.0085E-14 5.3612E-15 -1.1384E-14 -3.7391E-14 2.5303E-14 1.4241E-15 -9.1013E-14 1.9176E-13 -1.0049E-14 -3.3363E-15 1.4241E-15 4.1369E-13 -3.5128E-13 -1.5081E-12 3.2563E-12 4.0085E-14 -9.1013E-14 -3.5128E-13 2.5996E-11 # lat0 lon0 xBary yBary zBary JD0 -2.679421 14.148951 0.422162 -0.042757 -0.910996 2452164.868083 # Heliocentric elements and errors Epoch: 2452160.5000 = 2001/09/08 Mean Anomaly: 3.75092 +/- 0.305 Argument of Peri: 238.05494 +/- 0.329 Long of Asc Node: 131.49441 +/- 0.006 Inclination: 2.96493 +/- 0.000 Eccentricity: 0.03684509 +/- 0.0001 Semi-Major Axis: 43.19358941 +/- 0.0055 Time of Perihelion: 2451080.1549 +/- 87.7 Perihelion: 41.60211758 +/- 0.0072 Aphelion: 44.78506124 +/- 0.0075 Period (y) 283.8815 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.40132441 +/- 0.0010 Ecliptic Y 9.75496643 +/- 0.0002 Ecliptic Z -1.90211418 +/- 0.0001 Ecliptic XDOT -0.00063344 +/- 0.0000 Ecliptic YDOT 0.00263972 +/- 0.0000 Ecliptic ZDOT -0.00006601 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.60582197 +/- 0.0010 Geocenter to KBO 40.68894065 +/- 0.0011 # Hcoef: 6.54
The following table shows the complete astrometric record for 01RW143. 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 (01RW143) followed by the observatory code and reference code for the source of the astrometry.
2001 09 12.36734 00 56 15.00 +03 06 32.8 22.8R 01RW143 695 Ce0436 2001 09 12.45401 00 56 14.65 +03 06 30.2 01RW143 695 Ce0436 2001 10 19.35775 00 53 32.60 +02 49 04.6 22.9R 01RW143 695 Ce0436 2001 10 19.40456 00 53 32.40 +02 49 03.4 01RW143 695 Ce0436 2001 10 20.35560 00 53 28.20 +02 48 37.6 01RW143 695 Ce0436 2001 12 16.06454 00 50 38.49 +02 33 11.9 22.6 01RW143 304 Ce9438 2001 12 16.10215 00 50 38.46 +02 33 11.4 01RW143 304 Ce9438 2002 08 12.33571 01 03 03.32 +03 48 34.2 22.0R 01RW143 807 Ci9379 2002 08 12.41326 01 03 03.18 +03 48 32.8 01RW143 807 Ci9379 2003 10 22.30897 01 03 47.10 +03 48 54.7 01RW143 304 Ci9379 2003 10 22.32339 01 03 47.02 +03 48 54.4 01RW143 304 Ci9379 2007 11 11.27723 01 23 12.52 +05 40 37.4 23.0R 01RW143 688 Cw6713 2007 11 11.33837 01 23 12.27 +05 40 35.7 01RW143 688 Cw6713
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 0.28 0.00 0.02 2 0.0002 -5.84 0.22 -0.37 -0.22 3 0.1013 -2648.97 0.13 -26.31 -0.24 4 0.1014 -2652.19 0.29 -26.25 -0.23 5 0.1040 -2720.21 0.05 -25.70 -0.25 6 0.2593 -5424.25 -0.30 105.23 0.26 7 0.2594 -5424.86 -0.36 104.94 -0.18 8 0.9144 6615.33 -0.51 -30.14 0.34 9 0.9146 6612.86 -0.25 -30.63 0.09 10 2.1080 7228.78 0.32 -263.33 0.27 11 2.1080 7227.55 0.14 -263.14 0.44 12 6.1627 26022.81 0.05 -715.21 0.01 13 6.1628 26018.65 -0.08 -715.37 -0.31
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.
01RW143 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.383 43.383 43.383 ecceobj 0.041 0.041 0.041 incobj 2.963 2.963 2.963 qmin 40.264 40.264 40.264 qmax 46.065 46.065 46.065 amean 43.073 43.073 43.073 amin 42.737 42.737 42.737 amax 43.416 43.416 43.416 emean 0.043 0.043 0.043 emin 0.022 0.022 0.022 emax 0.061 0.061 0.061 imean 2.550 2.550 2.550 imin 1.429 1.429 1.429 imax 3.448 3.448 3.448 fracstop 1.000 1.000 1.000 cjmean 3.086 3.086 3.086 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 180.2 180.2 180.2 kozaiamp 180.0 180.0 180.0