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: 97UF25 # Created Fri May 2 02:36:26 2008 # Orbit generated from Bernstein formalism # Fitting 4 observations of 4 # Arc: 1.10d # First observation: 1997/10/26 # Last observation: 1997/10/27 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # Chi-squared of fit: 2.96 DOF: 4 RMS: 0.15 # Min/Max residuals: -0.24 0.26 # Exact a, adot, b, bdot, g, gdot: 1.454649E-05 2.164845E-02 1.766920E-07 -4.468289E-04 2.276603E-02 0.000000E+00 # Covariance matrix: 3.3265E-11 4.6560E-08 1.8279E-14 6.3107E-11 8.7385E-09 0.0000E+00 4.6560E-08 6.6748E-05 2.6006E-11 8.9984E-08 1.2453E-05 0.0000E+00 1.8279E-14 2.6006E-11 4.8903E-13 -1.5037E-10 4.8690E-12 0.0000E+00 6.3107E-11 8.9984E-08 -1.5037E-10 1.8577E-07 1.6830E-08 0.0000E+00 8.7385E-09 1.2453E-05 4.8690E-12 1.6830E-08 2.3297E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.5527E-04 # lat0 lon0 xBary yBary zBary JD0 -0.129460 66.054822 0.538152 -0.002083 -0.830830 2450747.540321 # Heliocentric elements and errors Epoch: 2450740.5000 = 1997/10/19 Mean Anomaly: 341.36705 +/- 109.343 Argument of Peri: 205.73742 +/- 176.011 Long of Asc Node: 239.24643 +/- 6.330 Inclination: 1.19335 +/- 1.228 Eccentricity: 0.02690722 +/- 0.5691 Semi-Major Axis: 45.92629202 +/- 23.8070 Time of Perihelion: 2456624.4583 +/- 375545.7 Perihelion: 44.69054337 +/- 34.9249 Aphelion: 47.16204067 +/- 35.7876 Period (y) 311.2435 +/- 242.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 18.66367710 +/- 1.1954 Ecliptic Y 40.68165363 +/- 2.6914 Ecliptic Z -0.09922470 +/- 0.0067 Ecliptic XDOT -0.00237558 +/- 0.0010 Ecliptic YDOT 0.00106447 +/- 0.0014 Ecliptic ZDOT -0.00005387 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 44.75868218 +/- 2.4965 Geocenter to KBO 43.92510155 +/- 2.9450 # Hcoef: 8.86
The following table shows the complete astrometric record for 97UF25. 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 (97UF25) followed by the observatory code and reference code for the source of the astrometry.
1997 10 26.03959 04 16 47.04 +21 11 25.4 25.0R 97UF25 950 Ca0663 1997 10 26.11442 04 16 46.72 +21 11 24.8 25.0R 97UF25 950 Ca0663 1997 10 27.05806 04 16 42.97 +21 11 15.4 25.1R 97UF25 950 Ca0663 1997 10 27.14413 04 16 42.61 +21 11 14.0 25.1R 97UF25 950 Ca0663
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 0.10 0.00 -0.10 2 0.0002 -4.51 -0.12 0.18 0.09 3 0.0028 -57.79 0.10 0.01 0.26 4 0.0030 -63.00 -0.09 -0.50 -0.24
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.
97UF25 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0