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: 01UB17 # Created Fri May 2 02:36:35 2008 # Orbit generated from Bernstein formalism # Fitting 6 observations of 6 # Arc: 1.17d # First observation: 2001/10/17 # Last observation: 2001/10/18 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # Chi-squared of fit: 4.27 DOF: 8 RMS: 0.15 # Min/Max residuals: -0.22 0.22 # Exact a, adot, b, bdot, g, gdot: 1.571060E-05 2.903085E-02 1.248431E-06 2.475890E-03 2.772478E-02 0.000000E+00 # Covariance matrix: 3.7949E-11 6.4848E-08 -3.7686E-14 -4.8136E-11 1.0326E-08 0.0000E+00 6.4848E-08 1.1321E-04 -6.5363E-11 -8.3787E-08 1.7952E-05 0.0000E+00 -3.7686E-14 -6.5363E-11 5.3449E-13 -1.9727E-10 -1.0384E-11 0.0000E+00 -4.8136E-11 -8.3787E-08 -1.9727E-10 1.3450E-07 -1.3297E-08 0.0000E+00 1.0326E-08 1.7952E-05 -1.0384E-11 -1.3297E-08 2.8500E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 2.8043E-04 # lat0 lon0 xBary yBary zBary JD0 -1.380875 24.429310 0.014940 -0.023986 -0.992001 2452199.641903 # Heliocentric elements and errors Epoch: 2452190.5000 = 2001/10/08 Mean Anomaly: 356.01215 +/- 67.614 Argument of Peri: 348.83115 +/- 134.505 Long of Asc Node: 39.80810 +/- 5.812 Inclination: 5.04958 +/- 1.858 Eccentricity: 0.04002700 +/- 0.5679 Semi-Major Axis: 38.60645157 +/- 20.5446 Time of Perihelion: 2453161.0644 +/- 191688.3 Perihelion: 37.06115132 +/- 29.4908 Aphelion: 40.15175181 +/- 30.6151 Period (y) 239.8822 +/- 191.48 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.74171226 +/- 1.9991 Ecliptic Y 15.31553422 +/- 0.9079 Ecliptic Z -0.86918394 +/- 0.0529 Ecliptic XDOT -0.00118895 +/- 0.0015 Ecliptic YDOT 0.00261321 +/- 0.0011 Ecliptic ZDOT 0.00024464 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 37.06513477 +/- 1.8581 Geocenter to KBO 36.06882023 +/- 2.1963 # Hcoef: 7.95
The following table shows the complete astrometric record for 01UB17. 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 (01UB17) followed by the observatory code and reference code for the source of the astrometry.
2001 10 17.14116 01 32 32.72 +08 11 02.1 01UB17 809 Cd9575 2001 10 17.25245 01 32 32.11 +08 10 58.7 01UB17 809 Cd9575 2001 10 18.09833 01 32 27.74 +08 10 34.3 01UB17 809 Cd9575 2001 10 18.21608 01 32 27.12 +08 10 31.3 01UB17 809 Cd9575 2001 10 18.29202 01 32 26.73 +08 10 28.7 23.2R 01UB17 809 Cd9575 2001 10 18.31336 01 32 26.59 +08 10 28.3 01UB17 809 Cd9575
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 0.17 0.00 0.03 2 0.0003 -9.67 -0.20 0.15 -0.03 3 0.0026 -78.98 -0.05 1.18 -0.13 4 0.0029 -88.65 0.12 1.76 0.22 5 0.0032 -94.99 0.12 1.46 -0.22 6 0.0032 -97.07 -0.18 1.85 0.13
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.
01UB17 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 40.049 40.049 40.049 ecceobj 0.079 0.079 0.079 incobj 4.942 4.942 4.942 qmin 34.396 34.814 33.688 qmax 45.540 44.574 46.063 amean 39.487 39.576 39.546 amin 38.852 38.915 38.886 amax 40.114 40.080 40.099 emean 0.086 0.077 0.101 emin 0.038 0.035 0.040 emax 0.136 0.118 0.150 imean 7.205 7.204 6.164 imin 4.532 4.532 3.766 imax 9.096 9.582 8.744 fracstop 1.000 1.000 1.000 cjmean 3.026 3.029 3.027 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 179.0 178.4 190.8 kozaiamp 180.0 180.0 180.0