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: 99RX215 # Created Fri May 2 02:36:29 2008 # Orbit generated from Bernstein formalism # Fitting 15 observations of 15 # Arc: 5.01y # First observation: 1999/09/08 # Last observation: 2004/09/11 Preliminary a, adot, b, bdot, g, gdot: 0.000068 0.025412 -0.000001 -0.000288 0.024932 0.000000 # Chi-squared of fit: 5.53 DOF: 24 RMS: 0.11 # Min/Max residuals: -0.31 0.23 # Exact a, adot, b, bdot, g, gdot: 1.553080E-05 2.553053E-02 -2.984306E-07 -2.890671E-04 2.474096E-02 1.729083E-03 # Covariance matrix: 3.1208E-13 -4.8995E-13 -1.2707E-15 4.9207E-15 6.9099E-13 -3.4704E-12 -4.8995E-13 2.7716E-12 4.7737E-15 -3.0600E-14 -1.8910E-12 2.2041E-11 -1.2707E-15 4.7737E-15 1.8535E-13 -4.0508E-14 -6.7989E-15 3.7037E-14 4.9207E-15 -3.0600E-14 -4.0508E-14 1.9165E-14 2.0476E-14 -2.4520E-13 6.9099E-13 -1.8910E-12 -6.7989E-15 2.0476E-14 4.0376E-12 -1.4219E-11 -3.4704E-12 2.2041E-11 3.7037E-14 -2.4520E-13 -1.4219E-11 1.7679E-10 # lat0 lon0 xBary yBary zBary JD0 -0.629514 -37.646232 -0.385223 -0.010387 -0.923507 2451429.796453 # Heliocentric elements and errors Epoch: 2451420.5000 = 1999/08/30 Mean Anomaly: 26.52269 +/- 0.098 Argument of Peri: 188.43879 +/- 0.141 Long of Asc Node: 99.19617 +/- 0.015 Inclination: 0.89060 +/- 0.000 Eccentricity: 0.14359466 +/- 0.0006 Semi-Major Axis: 47.16960673 +/- 0.0268 Time of Perihelion: 2442702.7012 +/- 31.2 Perihelion: 40.39630307 +/- 0.0367 Aphelion: 53.94291039 +/- 0.0419 Period (y) 323.9676 +/- 0.28 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.97619442 +/- 0.0026 Ecliptic Y -24.94237639 +/- 0.0020 Ecliptic Z -0.44406369 +/- 0.0000 Ecliptic XDOT 0.00187272 +/- 0.0000 Ecliptic YDOT 0.00212867 +/- 0.0000 Ecliptic ZDOT -0.00003403 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.34910798 +/- 0.0024 Geocenter to KBO 40.41880349 +/- 0.0033 # Hcoef: 7.44
The following table shows the complete astrometric record for 99RX215. 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 (99RX215) followed by the observatory code and reference code for the source of the astrometry.
1999 09 08.29571 21 39 41.48 -14 39 23.0 23.7R 99RX215 568 Ca9937 1999 09 08.34809 21 39 41.22 -14 39 24.2 23.3R 99RX215 568 Ca9937 1999 09 08.40068 21 39 41.01 -14 39 25.4 23.4R 99RX215 568 Ca9937 1999 09 10.30523 21 39 32.98 -14 40 04.9 23.6R 99RX215 568 Ca9937 1999 09 10.31684 21 39 32.95 -14 40 05.3 23.6R 99RX215 568 Ca9937 1999 10 08.31941 21 37 57.64 -14 47 46.6 23.4R 99RX215 568 Ca9937 1999 10 10.23744 21 37 53.09 -14 48 07.9 23.6R 99RX215 568 Ca9937 1999 10 10.28640 21 37 52.97 -14 48 08.4 23.2R 99RX215 568 Ca9937 2003 08 24.19583 22 03 24.68 -12 39 41.4 22.1R 99RX215 807 Ci3203 2003 08 25.20668 22 03 20.02 -12 40 07.0 99RX215 807 Ci3203 2003 08 25.31108 22 03 19.53 -12 40 09.6 99RX215 807 Ci3203 2004 09 11.07609 22 07 32.58 -12 18 02.5 22.9R 99RX215 304 Cl4067 2004 09 11.07917 22 07 32.56 -12 18 02.7 99RX215 304 Cl4067 2004 09 11.11898 22 07 32.38 -12 18 03.5 99RX215 304 Cl4067 2004 09 11.12205 22 07 32.36 -12 18 03.7 99RX215 304 Cl4067
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 0.16 0.00 0.02 2 0.0001 -3.96 -0.31 0.09 0.09 3 0.0003 -7.23 -0.08 -0.05 -0.09 4 0.0055 -130.27 0.01 0.53 0.07 5 0.0055 -130.81 0.23 0.29 -0.18 6 0.0822 -1588.36 0.02 12.74 -0.03 7 0.0875 -1657.69 0.00 13.94 0.03 8 0.0876 -1659.50 -0.03 14.03 0.07 9 3.9587 22032.50 0.03 -238.76 0.18 10 3.9614 21958.82 -0.01 -238.98 -0.06 11 3.9617 21951.11 -0.02 -238.92 -0.05 12 5.0097 25940.32 0.16 -295.13 -0.01 13 5.0097 25939.97 0.02 -295.22 -0.09 14 5.0098 25937.17 -0.02 -295.03 0.06 15 5.0098 25936.82 -0.16 -295.12 -0.02
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.
99RX215 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 47.099 47.179 47.023 ecceobj 0.142 0.144 0.141 incobj 0.890 0.890 0.890 qmin 39.775 39.761 39.749 qmax 54.662 54.747 54.424 amean 46.978 47.058 46.903 amin 46.579 46.647 46.507 amax 47.449 47.529 47.354 emean 0.137 0.139 0.136 emin 0.123 0.126 0.122 emax 0.152 0.152 0.149 imean 0.939 0.933 0.944 imin 0.455 0.458 0.452 imax 1.316 1.304 1.329 fracstop 1.000 1.000 1.000 cjmean 3.115 3.115 3.114 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 176.6 176.9 176.0 kozaiamp 179.9 180.0 180.0