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: 06SF415 # Created Tue Oct 17 01:37:39 2017 # Orbit generated from Bernstein formalism # Fitting 16 observations of 16 # Arc: 1.95y # First observation: 2006/09/18 # Last observation: 2008/08/31 Preliminary a, adot, b, bdot, g, gdot: -0.000020 0.025458 0.000004 0.001728 0.025417 0.000000 # Chi-squared of fit: 11.10 DOF: 26 RMS: 0.15 # Min/Max residuals: -0.38 0.30 # Exact a, adot, b, bdot, g, gdot: 1.594789E-05 2.538924E-02 1.383459E-06 1.716519E-03 2.515179E-02 -1.410685E-03 # Covariance matrix: 4.8809E-13 -7.0762E-13 8.0630E-15 -3.0508E-14 -2.9259E-13 -8.7530E-12 -7.0762E-13 1.9809E-12 -2.2237E-14 1.1976E-13 1.5833E-12 3.3979E-11 8.0630E-15 -2.2237E-14 3.4798E-13 -2.3963E-13 -2.1193E-15 -3.8630E-13 -3.0508E-14 1.1976E-13 -2.3963E-13 2.3052E-13 1.2001E-13 2.3434E-12 -2.9259E-13 1.5833E-12 -2.1193E-15 1.2001E-13 2.5177E-12 3.3236E-11 -8.7530E-12 3.3979E-11 -3.8630E-13 2.3434E-12 3.3236E-11 6.6293E-10 # lat0 lon0 xBary yBary zBary JD0 15.638503 -15.193033 -0.186745 0.266969 -0.953340 2453996.920044 # Heliocentric elements and errors Epoch: 2453990.5000 = 2006/09/12 Mean Anomaly: 321.46840 +/- 0.457 Argument of Peri: 120.77226 +/- 0.563 Long of Asc Node: 269.04699 +/- 0.004 Inclination: 15.70630 +/- 0.000 Eccentricity: 0.07463678 +/- 0.0008 Semi-Major Axis: 43.12855731 +/- 0.0123 Time of Perihelion: 2465063.3754 +/- 131.2 Perihelion: 39.90958048 +/- 0.0362 Aphelion: 46.34753413 +/- 0.0369 Period (y) 283.2407 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.95024056 +/- 0.0023 Ecliptic Y -10.11617271 +/- 0.0006 Ecliptic Z 10.71767427 +/- 0.0007 Ecliptic XDOT 0.00053770 +/- 0.0000 Ecliptic YDOT 0.00271433 +/- 0.0000 Ecliptic ZDOT 0.00013849 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.71150022 +/- 0.0022 Geocenter to KBO 39.75860521 +/- 0.0025 # Hcoef: 7.94
The following table shows the complete astrometric record for 06SF415. 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 (06SF415) followed by the observatory code and reference code for the source of the astrometry.
2006 09 18.41929 22 39 53.12 +08 26 57.8 24.0r 06SF415 568 C~1Q3U 2006 09 18.45237 22 39 52.97 +08 26 56.7 23.9r 06SF415 568 C~1Q3U 2006 09 18.48747 22 39 52.82 +08 26 55.5 23.7r 06SF415 568 C~1Q3U 2007 09 14.27362 22 45 29.89 +09 08 24.3 23.7r 06SF415 568 C~1Q3U 2007 09 14.27626 22 45 29.88 +09 08 23.8 23.8r 06SF415 568 C~1Q3U 2007 09 14.30445 22 45 29.74 +09 08 23.4 23.8r 06SF415 568 C~1Q3U 2007 09 14.30709 22 45 29.74 +09 08 23.2 23.8r 06SF415 568 C~1Q3U 2007 09 14.32851 22 45 29.62 +09 08 22.3 23.6r 06SF415 568 C~1Q3U 2007 09 14.33116 22 45 29.63 +09 08 22.2 23.5r 06SF415 568 C~1Q3U 2007 11 08.11890 22 42 30.49 +08 37 58.8 24.9r 06SF415 695 C~1Q3U 2007 11 08.18279 22 42 30.41 +08 37 57.1 24.3r 06SF415 695 C~1Q3U 2007 11 09.14603 22 42 29.17 +08 37 28.4 24.2r 06SF415 695 C~1Q3U 2008 08 30.33389 22 51 55.37 +09 53 53.1 23.5r 06SF415 568 C~1Q3U 2008 08 30.36464 22 51 55.22 +09 53 52.4 23.6r 06SF415 568 C~1Q3U 2008 08 30.39566 22 51 55.08 +09 53 51.7 23.6r 06SF415 568 C~1Q3U 2008 08 31.31616 22 51 50.79 +09 53 28.8 06SF415 568 C~1Q3U
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 0.00 0.00 -0.06 2 0.0001 -2.48 -0.03 -0.15 -0.10 3 0.0002 -4.99 0.05 -0.39 -0.22 4 0.9880 5566.52 0.10 364.61 0.23 5 0.9880 5566.19 -0.03 364.21 -0.17 6 0.9880 5564.12 0.01 364.63 0.30 7 0.9881 5564.05 0.14 364.45 0.12 8 0.9881 5562.06 -0.24 364.30 0.00 9 0.9881 5562.16 0.05 364.15 -0.14 10 1.1381 2408.29 -0.08 -294.72 0.08 11 1.1383 2406.54 0.13 -295.83 0.22 12 1.1409 2378.49 -0.13 -315.19 0.24 13 1.9491 11891.02 0.04 705.20 -0.07 14 1.9492 11888.70 -0.01 705.40 -0.01 15 1.9493 11886.51 0.11 705.54 -0.01 16 1.9518 11818.95 -0.11 708.47 -0.38
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.
06SF415 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.456 43.494 43.420 ecceobj 0.082 0.084 0.080 incobj 15.722 15.722 15.722 qmin 39.224 39.139 39.220 qmax 47.578 47.736 47.402 amean 43.264 43.300 43.227 amin 42.928 42.962 42.887 amax 43.623 43.657 43.583 emean 0.078 0.080 0.075 emin 0.065 0.068 0.063 emax 0.091 0.093 0.088 imean 17.420 17.418 17.421 imin 16.939 16.934 16.937 imax 17.837 17.835 17.837 excite_mean 0.309 0.310 0.309 fracstop 1.000 1.000 1.000 cjmean 2.976 2.976 2.976 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 180.0 180.0 180.0 kozaiamp 180.0 180.0 180.0