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: 99CM158 # Created Fri May 2 02:36:28 2008 # Orbit generated from Bernstein formalism # Fitting 13 observations of 13 # Arc: 8.01y # First observation: 1999/02/11 # Last observation: 2007/02/15 Preliminary a, adot, b, bdot, g, gdot: -0.000424 0.047137 0.000088 -0.007692 0.035867 0.000000 # Chi-squared of fit: 34.32 DOF: 20 RMS: 0.29 # Min/Max residuals: -0.79 0.64 # Exact a, adot, b, bdot, g, gdot: 2.149455E-05 4.674860E-02 -4.067648E-06 -7.636418E-03 3.595289E-02 3.841689E-03 # Covariance matrix: 4.5733E-13 -2.0172E-13 -1.4531E-14 2.4538E-14 3.3694E-13 -3.8843E-13 -2.0172E-13 2.8825E-13 2.5513E-14 -4.4565E-14 -1.4060E-14 7.0767E-13 -1.4531E-14 2.5513E-14 1.7364E-13 -3.3562E-14 1.5583E-15 6.6545E-14 2.4538E-14 -4.4565E-14 -3.3562E-14 2.2195E-14 -4.2842E-15 -1.1651E-13 3.3694E-13 -1.4060E-14 1.5583E-15 -4.2842E-15 6.0733E-13 7.0281E-14 -3.8843E-13 7.0767E-13 6.6545E-14 -1.1651E-13 7.0281E-14 1.8506E-12 # lat0 lon0 xBary yBary zBary JD0 -0.474836 162.452725 0.336646 -0.007980 -0.934742 2451221.026423 # Heliocentric elements and errors Epoch: 2451220.5000 = 1999/02/11 Mean Anomaly: 10.40113 +/- 0.004 Argument of Peri: 163.94652 +/- 0.007 Long of Asc Node: 338.97150 +/- 0.000 Inclination: 9.30707 +/- 0.000 Eccentricity: 0.27535660 +/- 0.0001 Semi-Major Axis: 39.20349778 +/- 0.0055 Time of Perihelion: 2448630.1199 +/- 0.9 Perihelion: 28.40855578 +/- 0.0053 Aphelion: 49.99843978 +/- 0.0079 Period (y) 245.4683 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.30070252 +/- 0.0006 Ecliptic Y 8.98779742 +/- 0.0002 Ecliptic Z -0.23060747 +/- 0.0000 Ecliptic XDOT -0.00134933 +/- 0.0000 Ecliptic YDOT -0.00329855 +/- 0.0000 Ecliptic ZDOT -0.00058392 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 28.74303465 +/- 0.0005 Geocenter to KBO 27.81417281 +/- 0.0006 # Hcoef: 7.77
The following table shows the complete astrometric record for 99CM158. 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 (99CM158) followed by the observatory code and reference code for the source of the astrometry.
1999 02 11.52568 10 54 33.43 +06 26 56.5 21.9R 99CM158 568 Cb7527 1999 02 11.60965 10 54 32.91 +06 26 58.9 21.9R 99CM158 568 Cb7527 1999 03 15.52508 10 51 10.30 +06 45 10.9 21.9R 99CM158 568 Cb7527 1999 03 15.56242 10 51 10.06 +06 45 12.1 21.9R 99CM158 568 Cb7527 1999 04 12.38664 10 48 37.02 +06 58 52.8 23.2V 99CM158 568 Cb7527 1999 04 12.44075 10 48 36.76 +06 58 54.0 23.2V 99CM158 568 Cb7527 2000 05 05.26157 10 56 27.48 +05 41 31.8 99CM158 568 Cc7487 2000 05 05.30793 10 56 27.36 +05 41 31.6 99CM158 568 Cc7487 2001 02 16.42449 11 12 21.78 +03 39 00.3 99CM158 568 Cc7487 2001 02 16.44631 11 12 21.64 +03 39 01.0 99CM158 568 Cc7487 2001 02 17.47576 11 12 15.53 +03 39 33.8 21.9 99CM158 568 Cc7487 2007 02 15.41532 12 05 12.35 -04 38 42.9 22.5R 99CM158 688 Cu2274 2007 02 15.48968 12 05 12.03 -04 38 40.4 99CM158 688 Cu2274
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 -0.19 0.00 0.15 2 0.0002 -8.08 -0.20 -0.74 -0.14 3 0.0876 -3215.70 0.01 -141.01 0.19 4 0.0877 -3219.46 -0.01 -141.26 0.11 5 0.1639 -5640.69 0.44 -246.94 0.34 6 0.1640 -5644.73 0.28 -247.29 0.21 7 1.2286 2613.38 -0.34 -1868.10 -0.06 8 1.2287 2611.80 -0.26 -1868.97 -0.79 9 2.0148 18662.98 0.08 -3160.40 -0.04 10 2.0148 18660.75 -0.04 -3160.56 -0.08 11 2.0177 18562.93 0.22 -3165.78 -0.06 12 8.0106 77450.62 -0.12 -12701.89 -0.49 13 8.0109 77444.46 0.13 -12701.34 0.64
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.
99CM158 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.307 39.324 39.291 ecceobj 0.277 0.278 0.277 incobj 9.298 9.298 9.298 qmin 27.689 27.778 27.790 qmax 52.077 51.839 51.861 amean 39.455 39.455 39.456 amin 38.886 38.906 38.901 amax 40.107 40.098 40.114 emean 0.283 0.279 0.279 emin 0.268 0.263 0.264 emax 0.298 0.295 0.294 imean 9.862 10.130 10.194 imin 9.130 9.403 9.513 imax 10.579 10.727 10.687 fracstop 1.000 1.000 1.000 cjmean 2.926 2.926 2.926 libcent 0 180.2 180.0 180.3 libamp 0 122.9 122.0 122.8 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 186.2 191.0 197.7 kozaiamp 180.0 180.0 179.9