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: 00YH2 # Created Thu May 24 01:37:06 2012 # Orbit generated from Bernstein formalism # Fitting 25 observations of 25 # Arc: 7.85y # First observation: 2000/12/17 # Last observation: 2008/10/22 Preliminary a, adot, b, bdot, g, gdot: -0.003983 0.051622 0.000681 -0.011185 0.030541 0.000000 # Chi-squared of fit: 113.17 DOF: 44 RMS: 0.38 # Min/Max residuals: -1.28 0.59 # Exact a, adot, b, bdot, g, gdot: 2.167732E-05 4.562053E-02 -7.717925E-07 -1.013772E-02 3.584746E-02 -7.546877E-03 # Covariance matrix: 2.1439E-13 -1.4554E-13 -1.2887E-14 1.5966E-14 2.9843E-13 -1.7935E-13 -1.4554E-13 1.7682E-13 1.8074E-14 -2.4591E-14 -2.9847E-13 2.7645E-13 -1.2887E-14 1.8074E-14 1.1426E-13 -1.9825E-14 -2.3341E-14 3.2017E-14 1.5966E-14 -2.4591E-14 -1.9825E-14 9.4802E-15 1.1858E-14 -5.0833E-14 2.9843E-13 -2.9847E-13 -2.3341E-14 1.1858E-14 1.4723E-12 -1.3158E-13 -1.7935E-13 2.7645E-13 3.2017E-14 -5.0833E-14 -1.3158E-13 5.7209E-13 # lat0 lon0 xBary yBary zBary JD0 -3.684480 54.210275 -0.513752 -0.053702 -0.831458 2451895.763373 # Heliocentric elements and errors Epoch: 2451890.5000 = 2000/12/12 Mean Anomaly: 341.40354 +/- 0.009 Argument of Peri: 232.02856 +/- 0.013 Long of Asc Node: 219.37313 +/- 0.000 Inclination: 12.87976 +/- 0.000 Eccentricity: 0.30790597 +/- 0.0001 Semi-Major Axis: 39.67964344 +/- 0.0090 Time of Perihelion: 2456606.5447 +/- 1.7 Perihelion: 27.46204419 +/- 0.0079 Aphelion: 51.89724269 +/- 0.0127 Period (y) 249.9539 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 16.35497163 +/- 0.0006 Ecliptic Y 23.56309642 +/- 0.0008 Ecliptic Z -1.79267052 +/- 0.0001 Ecliptic XDOT -0.00319985 +/- 0.0000 Ecliptic YDOT 0.00153485 +/- 0.0000 Ecliptic ZDOT -0.00073545 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 28.73879395 +/- 0.0007 Geocenter to KBO 27.89597909 +/- 0.0009 # Hcoef: 8.16
The following table shows the complete astrometric record for 00YH2. 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 (00YH2) followed by the observatory code and reference code for the source of the astrometry.
2000 12 17.26263 03 31 06.72 +15 15 01.5 22.5R 00YH2 695 Cc4111 2000 12 17.30542 03 31 06.47 +15 15 00.9 22.1R 00YH2 695 Cc4111 2000 12 17.35038 03 31 06.20 +15 14 59.7 21.9R 00YH2 695 Cc4111 2000 12 18.15950 03 31 01.75 +15 14 43.0 00YH2 695 C43802 2001 01 26.14281 03 28 47.85 +15 07 06.8 22.0R 00YH2 695 Ce1834 2001 01 26.24025 03 28 47.74 +15 07 06.6 00YH2 695 Ce1834 2001 02 14.83686 03 28 57.39 +15 08 29.5 00YH2 950 Cc6738 2001 02 14.88155 03 28 57.46 +15 08 29.7 00YH2 950 Cc6738 2001 02 14.92333 03 28 57.54 +15 08 30.3 00YH2 950 Cc6738 2001 12 12.06377 03 42 52.16 +15 20 04.5 22.1R 00YH2 950 Ce3555 2001 12 12.09988 03 42 51.93 +15 20 03.4 00YH2 950 Ce3555 2001 12 12.13756 03 42 51.68 +15 20 02.8 00YH2 950 Ce3555 2001 12 12.83248 03 42 47.41 +15 19 46.8 00YH2 950 Ce3555 2003 11 22.26995 04 08 06.77 +15 27 20.0 21.5R 00YH2 695 Cj3639 2003 11 23.27488 04 07 59.74 +15 26 53.3 00YH2 695 Cj3639 2003 11 23.32952 04 07 59.31 +15 26 52.7 00YH2 695 Cj3639 2003 11 23.38476 04 07 58.91 +15 26 51.3 00YH2 695 Cj3639 2007 11 11.38352 04 56 30.86 +15 00 00.7 21.8R 00YH2 688 Cw6696 2007 11 11.45822 04 56 30.48 +14 59 58.8 00YH2 688 Cw6696 2008 09 19.06421 05 11 07.22 +15 06 16.9 22.7R 00YH2 250 S~06AO 2008 09 19.07115 05 11 07.22 +15 06 16.7 00YH2 250 S~06AO 2008 09 19.07740 05 11 07.23 +15 06 16.6 00YH2 250 S~06AO 2008 09 19.08435 05 11 07.23 +15 06 16.5 00YH2 250 S~06AO 2008 10 22.33548 05 10 07.17 +14 53 24.5 23.5r 00YH2 695 C~0gLu 2008 10 22.42411 05 10 06.80 +14 53 22.8 24.1r 00YH2 695 C~0gLu
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 -0.32 0.00 -0.76 2 0.0001 -3.66 -0.31 0.29 -0.42 3 0.0002 -7.74 -0.55 0.07 -0.59 4 0.0025 -74.26 0.25 -0.61 -0.16 5 0.1092 -2065.51 0.39 26.76 0.13 6 0.1095 -2067.10 0.23 26.96 0.10 7 0.1631 -1911.37 0.21 73.32 0.44 8 0.1632 -1910.34 0.01 73.27 0.27 9 0.1633 -1909.07 0.11 73.57 0.47 10 0.9851 10001.36 -0.06 -2101.18 0.54 11 0.9852 9997.86 -0.12 -2101.50 0.29 12 0.9853 9994.19 -0.22 -2101.25 0.59 13 0.9872 9930.25 0.15 -2102.73 0.24 14 2.9295 31740.46 0.02 -6406.22 -0.07 15 2.9323 31633.03 0.47 -6411.94 -1.06 16 2.9324 31626.67 0.07 -6411.27 -0.15 17 2.9326 31620.58 0.01 -6411.47 -0.12 18 6.8997 75901.77 -1.28 -15889.82 0.37 19 6.8999 75895.28 0.27 -15890.90 -0.06 20 7.7558 90652.86 0.12 -17573.14 -0.15 21 7.7558 90652.83 0.04 -17573.36 -0.20 22 7.7558 90652.99 0.16 -17573.49 -0.18 23 7.7558 90652.98 0.09 -17573.60 -0.11 24 7.8469 89516.99 0.11 -18273.10 0.09 25 7.8471 89510.41 0.18 -18274.08 0.52
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.
00YH2 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.641 39.641 39.641 ecceobj 0.307 0.307 0.307 incobj 12.878 12.878 12.878 qmin 26.685 26.643 26.690 qmax 53.026 52.998 52.906 amean 39.455 39.455 39.455 amin 38.955 38.940 38.958 amax 40.109 40.095 40.062 emean 0.304 0.304 0.303 emin 0.284 0.284 0.284 emax 0.324 0.324 0.322 imean 13.583 13.571 13.588 imin 12.792 12.747 12.802 imax 14.459 14.460 14.451 excite_mean 0.384 0.384 0.384 fracstop 1.000 1.000 1.000 cjmean 2.883 2.883 2.883 libcent 0 179.5 180.4 179.6 libamp 0 100.6 101.7 101.8 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 187.7 187.3 186.8 kozaiamp 180.0 180.0 180.0