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: 99RU215 # Created Fri May 2 02:36:29 2008 # Orbit generated from Bernstein formalism # Fitting 16 observations of 19 # Arc: 3.17y # First observation: 1999/09/07 # Last observation: 2002/11/07 Preliminary a, adot, b, bdot, g, gdot: -0.000024 0.025506 0.000001 0.003465 0.025262 0.000000 # Chi-squared of fit: 11.31 DOF: 26 RMS: 0.15 # Min/Max residuals: -0.22 0.34 # Exact a, adot, b, bdot, g, gdot: 1.451088E-05 2.554703E-02 3.138386E-06 3.473049E-03 2.530683E-02 1.224687E-03 # Covariance matrix: 2.6392E-13 -5.4793E-13 1.9354E-14 -1.0098E-13 2.0300E-13 -9.4634E-12 -5.4793E-13 2.5012E-12 -9.1614E-14 4.7816E-13 -3.4543E-13 4.4814E-11 1.9354E-14 -9.1614E-14 1.3608E-13 -7.8373E-14 1.6493E-14 -1.7120E-12 -1.0098E-13 4.7816E-13 -7.8373E-14 1.8411E-13 -8.5930E-14 8.9351E-12 2.0300E-13 -3.4543E-13 1.6493E-14 -8.5930E-14 5.9165E-13 -8.0516E-12 -9.4634E-12 4.4814E-11 -1.7120E-12 8.9351E-12 -8.0516E-12 8.3740E-10 # lat0 lon0 xBary yBary zBary JD0 -0.075889 14.464371 0.503687 -0.001366 -0.864958 2451429.032193 # Heliocentric elements and errors Epoch: 2451420.5000 = 1999/08/30 Mean Anomaly: 23.69306 +/- 0.586 Argument of Peri: 331.73046 +/- 0.705 Long of Asc Node: 14.29733 +/- 0.000 Inclination: 7.71339 +/- 0.001 Eccentricity: 0.07893360 +/- 0.0007 Semi-Major Axis: 43.48433047 +/- 0.0144 Time of Perihelion: 2444527.3724 +/- 170.6 Perihelion: 40.05195562 +/- 0.0346 Aphelion: 46.91670531 +/- 0.0355 Period (y) 286.7526 +/- 0.14 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.23339397 +/- 0.0012 Ecliptic Y 9.60073434 +/- 0.0003 Ecliptic Z -0.05220862 +/- 0.0000 Ecliptic XDOT -0.00056565 +/- 0.0000 Ecliptic YDOT 0.00271777 +/- 0.0000 Ecliptic ZDOT 0.00037562 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.39103896 +/- 0.0011 Geocenter to KBO 39.51502812 +/- 0.0012 # Hcoef: 7.26
The following table shows the complete astrometric record for 99RU215. 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 (99RU215) followed by the observatory code and reference code for the source of the astrometry.
1999 09 07.53145 00 53 22.71 +05 37 55.6 23.0R 99RU215 568 Ca9937 1999 09 07.57789 00 53 22.51 +05 37 54.6 22.7R 99RU215 568 Ca9937 1999 09 07.61159 00 53 22.36 +05 37 53.6 22.1R 99RU215 568 Ca9937 1999 09 11.59196 00 53 06.20 +05 36 20.7 23.0R 99RU215 568 Ca9937 1999 09 11.60241 00 53 06.15 +05 36 20.4 23.0R 99RU215 568 Ca9937 1999 10 08.57269 00 51 03.90 +05 24 30.4 23.0R 99RU215 568 Ca9937 1999 10 08.59814 00 51 03.83 +05 24 29.6 23.0R 99RU215 568 Ca9937 1999 10 09.54375 00 50 59.33 +05 24 03.5 22.9R 99RU215 568 Ca9937 1999 10 09.56363 00 50 59.24 +05 24 03.0 23.0R 99RU215 568 Ca9937 1999 11 10.43542 00 48 40.27 +05 10 36.8 23.3R 99RU215 568 Ca9937 1999 11 10.47021 00 48 40.13 +05 10 36.3 23.3R 99RU215 568 Ca9937 2000 08 28.47852 00 59 04.61 +06 26 03.6 23.0R 99RU215 568 Cb9109 2000 08 28.53299 00 59 04.42 +06 26 02.7 23.0R 99RU215 568 Cb9109 2000 08 29.55080 00 59 00.96 +06 25 43.6 23.0R 99RU215 568 Cb9109 2000 08 29.58698 00 59 00.83 +06 25 43.0 23.1R 99RU215 568 Cb9109 2000 12 27.26720 00 52 09.722 +05 46 59.29 23.2R 99RU215 568 Cl2529 2000 12 28.27424 00 52 09.792 +05 47 01.42 23.2R 99RU215 568 Cl2529 2002 11 07.28224 01 04 13.61 +07 26 09.5 23.1R 99RU215 568 Cl8251 2002 11 07.42733 01 04 13.00 +07 26 05.9 99RU215 568 Cl8251
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 0.30 0.00 -0.20 2 0.0001 -3.14 0.16 0.23 -0.08 3 0.0002 -5.59 -0.12 0.18 -0.21 4 0.0111 -263.98 -0.04 7.90 -0.09 5 0.0111 -264.79 -0.14 7.91 -0.11 6 0.0850 -2222.67 -0.17 60.77 0.31 7 0.0851 -2223.94 ( 0.50) 60.44 ( -0.08) 8 0.0876 -2296.01 -0.13 62.46 0.08 9 0.0877 -2297.45 -0.05 62.52 0.10 10 0.1750 -4523.92 0.10 125.81 0.07 11 0.1751 -4526.04 0.08 126.16 0.34 12 0.9745 5821.02 -0.14 696.63 -0.22 13 0.9747 5818.06 -0.11 696.89 -0.11 14 0.9775 5763.06 0.13 699.10 -0.02 15 0.9776 5761.04 0.13 699.29 0.08 16 1.3052 -793.83 ( -1.27) 923.17 ( 0.65) 17 1.3080 -792.04 ( -1.49) 924.73 ( 0.56) 18 3.1670 11463.55 0.04 2265.50 0.10 19 3.1674 11453.76 -0.04 2265.64 -0.05
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.
99RU215 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.461 43.503 43.419 ecceobj 0.078 0.080 0.076 incobj 7.716 7.716 7.715 qmin 39.207 39.200 39.217 qmax 47.255 47.352 47.183 amean 43.129 43.175 43.093 amin 42.782 42.832 42.761 amax 43.496 43.534 43.450 emean 0.072 0.071 0.067 emin 0.056 0.053 0.049 emax 0.087 0.089 0.087 imean 7.220 7.132 7.108 imin 6.402 6.277 6.261 imax 8.075 8.075 8.068 fracstop 1.000 1.000 1.000 cjmean 3.066 3.067 3.067 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 180.1 176.5 176.7 kozaiamp 180.0 180.0 179.9