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: 00YB2 # Created Thu May 24 01:37:06 2012 # Orbit generated from Bernstein formalism # Fitting 21 observations of 21 # Arc: 7.73y # First observation: 2000/12/16 # Last observation: 2008/09/10 Preliminary a, adot, b, bdot, g, gdot: 0.000140 0.027102 0.000002 0.000324 0.026136 0.000000 # Chi-squared of fit: 69.37 DOF: 36 RMS: 0.32 # Min/Max residuals: -1.19 0.77 # Exact a, adot, b, bdot, g, gdot: 1.652667E-05 2.707212E-02 2.162601E-06 3.259044E-04 2.660483E-02 4.513864E-04 # Covariance matrix: 1.9530E-13 -9.8948E-14 1.6129E-15 -1.0677E-15 -8.1186E-14 -3.5920E-13 -9.8948E-14 1.6115E-13 -1.0502E-15 2.0362E-15 -2.0742E-14 6.1149E-13 1.6129E-15 -1.0502E-15 1.1884E-13 -2.0274E-14 -2.5964E-15 -5.5202E-15 -1.0677E-15 2.0362E-15 -2.0274E-14 8.4739E-15 -2.2938E-16 8.1765E-15 -8.1186E-14 -2.0742E-14 -2.5964E-15 -2.2938E-16 2.3763E-13 2.9639E-14 -3.5920E-13 6.1149E-13 -5.5202E-15 8.1765E-15 2.9639E-14 2.5028E-12 # lat0 lon0 xBary yBary zBary JD0 -3.837469 55.948865 -0.473081 -0.057512 -0.855014 2451894.767073 # Heliocentric elements and errors Epoch: 2451890.5000 = 2000/12/12 Mean Anomaly: 59.86977 +/- 0.086 Argument of Peri: 217.89528 +/- 0.093 Long of Asc Node: 135.56494 +/- 0.003 Inclination: 3.82209 +/- 0.000 Eccentricity: 0.03246500 +/- 0.0001 Semi-Major Axis: 39.05639549 +/- 0.0033 Time of Perihelion: 2437063.8935 +/- 21.3 Perihelion: 37.78842968 +/- 0.0042 Aphelion: 40.32436129 +/- 0.0044 Period (y) 244.0880 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.09120111 +/- 0.0004 Ecliptic Y 32.05268648 +/- 0.0006 Ecliptic Z -2.51548959 +/- 0.0000 Ecliptic XDOT -0.00228908 +/- 0.0000 Ecliptic YDOT 0.00160436 +/- 0.0000 Ecliptic ZDOT 0.00003053 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.45180311 +/- 0.0005 Geocenter to KBO 37.58715471 +/- 0.0007 # Hcoef: 7.20
The following table shows the complete astrometric record for 00YB2. 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 (00YB2) followed by the observatory code and reference code for the source of the astrometry.
2000 12 16.26633 03 38 15.33 +15 30 41.2 22.4R 00YB2 695 Cc4111 2000 12 16.35374 03 38 14.93 +15 30 40.1 22.3R 00YB2 695 Cc4111 2000 12 16.38591 03 38 14.78 +15 30 39.8 22.2R 00YB2 695 Cc4111 2000 12 18.09808 03 38 06.81 +15 30 18.1 00YB2 695 Cc4111 2001 02 14.84637 03 36 05.09 +15 28 43.3 00YB2 950 Cc6738 2001 02 16.85280 03 36 07.14 +15 29 03.4 22.2R 00YB2 950 Cc6738 2001 09 19.41135 03 51 07.08 +16 16 21.1 00YB2 695 Cd5779 2001 09 19.46490 03 51 06.97 +16 16 20.5 00YB2 695 Cd5779 2001 09 21.43870 03 51 03.04 +16 15 57.6 00YB2 290 Cd5779 2001 09 21.48613 03 51 02.93 +16 15 57.0 00YB2 290 Cd5779 2001 10 21.32125 03 49 22.02 +16 08 34.0 00YB2 696 Cd9166 2001 10 21.35896 03 49 21.88 +16 08 32.8 22.3R 00YB2 696 Cd9166 2001 12 13.08442 03 44 48.38 +15 53 44.8 00YB2 950 Ce3555 2001 12 13.14503 03 44 48.08 +15 53 44.0 00YB2 950 Ce3555 2004 11 20.30587 04 05 43.59 +17 01 27.5 22.5R 00YB2 568 Cm0397 2004 11 20.36370 04 05 43.27 +17 01 26.8 00YB2 568 Cm0397 2004 11 21.37478 04 05 37.73 +17 01 11.3 00YB2 568 Cm0397 2008 09 10.14754 04 34 50.38 +18 25 11.5 25.4R 00YB2 250 S~06AO 2008 09 10.15379 04 34 50.38 +18 25 11.4 00YB2 250 S~06AO 2008 09 10.16004 04 34 50.39 +18 25 11.5 00YB2 250 S~06AO 2008 09 10.21560 04 34 50.37 +18 25 11.1 00YB2 250 S~06AO
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 -0.09 0.00 -0.41 2 0.0002 -5.88 0.12 0.27 -0.44 3 0.0003 -8.06 0.17 0.48 -0.33 4 0.0050 -125.15 -1.19 6.00 -0.54 5 0.1659 -1858.51 0.35 322.81 -0.10 6 0.1714 -1824.99 0.23 335.43 -0.07 7 0.7588 11476.19 0.21 179.74 0.53 8 0.7589 11474.51 0.15 179.49 0.54 9 0.7643 11414.12 0.06 169.35 0.30 10 0.7645 11412.44 -0.05 169.11 0.28 11 0.8461 9893.34 -0.29 52.30 0.77 12 0.8462 9891.11 0.05 51.57 0.13 13 0.9906 5843.16 0.24 56.73 -0.10 14 0.9908 5838.76 0.29 56.92 -0.09 15 3.9289 24461.73 -0.18 216.53 -0.28 16 3.9291 24457.03 -0.13 216.76 -0.11 17 3.9319 24374.94 0.01 217.33 -0.13 18 7.7341 50791.52 0.05 691.33 0.02 19 7.7341 50791.50 0.03 691.22 -0.05 20 7.7341 50791.67 0.19 691.30 0.06 21 7.7343 50791.30 -0.21 690.94 0.00
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.
00YB2 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 39.049 39.058 39.039 ecceobj 0.034 0.034 0.034 incobj 3.823 3.823 3.823 qmin 36.695 36.710 36.675 qmax 40.925 40.937 40.923 amean 38.782 38.791 38.771 amin 38.746 38.757 38.737 amax 38.815 38.824 38.804 emean 0.037 0.037 0.036 emin 0.017 0.017 0.017 emax 0.054 0.054 0.055 imean 2.344 2.358 2.329 imin 0.319 0.314 0.324 imax 3.770 3.772 3.767 excite_mean 0.057 0.058 0.057 fracstop 1.000 1.000 1.000 cjmean 3.043 3.043 3.043 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 183.1 176.9 186.1 kozaiamp 180.0 180.0 180.0