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: 02VD131 # Created Fri May 2 02:36:51 2008 # Orbit generated from Bernstein formalism # Fitting 13 observations of 13 # Arc: 1.85y # First observation: 2002/11/07 # Last observation: 2004/09/13 Preliminary a, adot, b, bdot, g, gdot: 0.000034 0.022906 -0.000002 0.000149 0.023597 0.000000 # Chi-squared of fit: 22.33 DOF: 20 RMS: 0.23 # Min/Max residuals: -0.86 0.45 # Exact a, adot, b, bdot, g, gdot: 1.613445E-05 2.297647E-02 -2.084984E-06 1.489126E-04 2.359329E-02 8.879358E-04 # Covariance matrix: 4.8752E-13 -3.6940E-13 -1.8939E-15 2.3932E-15 9.4922E-13 5.6479E-12 -3.6940E-13 1.5935E-12 -1.9117E-15 7.8722E-15 4.7563E-13 2.6552E-11 -1.8939E-15 -1.9117E-15 2.7277E-13 -1.7861E-13 -1.2245E-14 -1.4254E-13 2.3932E-15 7.8722E-15 -1.7861E-13 2.0028E-13 2.1355E-14 3.2089E-13 9.4922E-13 4.7563E-13 -1.2245E-14 2.1355E-14 5.6170E-12 5.8992E-11 5.6479E-12 2.6552E-11 -1.4254E-13 3.2089E-13 5.8992E-11 9.6301E-10 # lat0 lon0 xBary yBary zBary JD0 -0.781598 20.227144 -0.402956 -0.012343 -0.902357 2452585.665373 # Heliocentric elements and errors Epoch: 2452580.5000 = 2002/11/02 Mean Anomaly: 45.14735 +/- 0.833 Argument of Peri: 246.04915 +/- 1.003 Long of Asc Node: 84.34429 +/- 0.066 Inclination: 0.85462 +/- 0.001 Eccentricity: 0.06075038 +/- 0.0010 Semi-Major Axis: 45.13396049 +/- 0.0165 Time of Perihelion: 2438691.1053 +/- 256.2 Perihelion: 42.39205526 +/- 0.0462 Aphelion: 47.87586572 +/- 0.0469 Period (y) 303.2239 +/- 0.17 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.47359921 +/- 0.0040 Ecliptic Y 15.34867202 +/- 0.0015 Ecliptic Z -0.57824502 +/- 0.0001 Ecliptic XDOT -0.00083239 +/- 0.0000 Ecliptic YDOT 0.00253411 +/- 0.0000 Ecliptic ZDOT 0.00001608 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.29004889 +/- 0.0038 Geocenter to KBO 42.38493791 +/- 0.0043 # Hcoef: 6.58
The following table shows the complete astrometric record for 02VD131. 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 (02VD131) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.16463 01 15 54.06 +07 10 50.8 22.3R 02VD131 695 Cg8319 2002 11 07.27232 01 15 53.63 +07 10 48.2 02VD131 695 Cg8319 2002 11 30.25812 01 14 35.70 +07 03 15.4 22.4R 02VD131 568 Cg8319 2002 12 01.24981 01 14 33.05 +07 03 00.4 02VD131 568 Cg8319 2002 12 01.32144 01 14 32.91 +07 02 58.7 02VD131 568 Cg8319 2003 10 23.16513 01 21 52.92 +07 47 13.1 23.0R 02VD131 695 Cj4694 2003 10 23.26048 01 21 52.48 +07 47 10.5 02VD131 695 Cj4694 2003 11 20.13563 01 20 00.45 +07 36 16.1 22.8R 02VD131 695 Cj4694 2003 11 20.21942 01 20 00.15 +07 36 14.5 02VD131 695 Cj4694 2004 09 13.33140 01 29 31.55 +08 33 09.8 22.6R 02VD131 304 Cl4339 2004 09 13.33377 01 29 31.55 +08 33 09.8 02VD131 304 Cl4339 2004 09 13.35563 01 29 31.47 +08 33 09.4 02VD131 304 Cl4339 2004 09 13.35800 01 29 31.46 +08 33 09.2 02VD131 304 Cl4339
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 -0.15 0.00 0.45 2 0.0003 -6.91 -0.11 0.00 0.34 3 0.0632 -1251.99 -0.06 17.27 -0.02 4 0.0659 -1294.19 -0.10 18.24 0.03 5 0.0661 -1296.76 0.41 17.45 -0.86 6 0.9582 5767.40 0.24 23.89 0.03 7 0.9585 5760.36 0.00 23.92 -0.01 8 1.0348 3970.14 -0.08 38.98 -0.03 9 1.0351 3965.40 -0.14 39.17 0.06 10 1.8512 13129.92 -0.10 58.53 0.00 11 1.8513 13129.92 0.04 58.53 0.00 12 1.8513 13128.66 0.06 58.59 0.07 13 1.8513 13128.45 -0.01 58.46 -0.06
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.
02VD131 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.501 45.501 45.500 ecceobj 0.068 0.068 0.068 incobj 0.854 0.854 0.854 qmin 41.580 41.575 41.603 qmax 48.956 48.937 48.985 amean 45.162 45.161 45.160 amin 44.795 44.799 44.800 amax 45.538 45.541 45.549 emean 0.062 0.062 0.062 emin 0.048 0.048 0.047 emax 0.075 0.075 0.075 imean 0.981 0.982 0.981 imin 0.406 0.406 0.406 imax 1.329 1.330 1.328 fracstop 1.000 1.000 1.000 cjmean 3.111 3.111 3.111 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 190.3 190.3 190.3 kozaiamp 179.9 179.9 180.0