The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 02VB131 # Created Thu May 24 01:37:14 2012 # Orbit generated from Bernstein formalism # Fitting 12 observations of 13 # Arc: 6.07y # First observation: 2002/11/07 # Last observation: 2008/12/01 Preliminary a, adot, b, bdot, g, gdot: 0.000056 0.021047 -0.000001 0.000218 0.022926 0.000000 # Chi-squared of fit: 5.55 DOF: 18 RMS: 0.12 # Min/Max residuals: -0.25 0.25 # Exact a, adot, b, bdot, g, gdot: 1.500963E-05 2.109938E-02 -4.528191E-07 2.190872E-04 2.285002E-02 2.211900E-04 # Covariance matrix: 5.8009E-13 -1.4166E-12 2.4165E-15 -1.6009E-14 1.1317E-12 -1.1562E-11 -1.4166E-12 4.6113E-12 -8.1278E-15 5.3294E-14 -3.7388E-12 3.8489E-11 2.4165E-15 -8.1278E-15 1.6765E-13 -4.4378E-14 4.7184E-15 -6.9036E-14 -1.6009E-14 5.3294E-14 -4.4378E-14 4.4473E-14 -4.3369E-14 4.4917E-13 1.1317E-12 -3.7388E-12 4.7184E-15 -4.3369E-14 3.6918E-12 -3.1329E-11 -1.1562E-11 3.8489E-11 -6.9036E-14 4.4917E-13 -3.1329E-11 3.2439E-10 # lat0 lon0 xBary yBary zBary JD0 -1.432680 19.651257 -0.411681 -0.022500 -0.898217 2452585.644793 # Heliocentric elements and errors Epoch: 2452580.5000 = 2002/11/02 Mean Anomaly: 154.11612 +/- 1.360 Argument of Peri: 137.40035 +/- 1.338 Long of Asc Node: 86.76005 +/- 0.019 Inclination: 1.52983 +/- 0.000 Eccentricity: 0.03938455 +/- 0.0001 Semi-Major Axis: 43.12423076 +/- 0.0218 Time of Perihelion: 2408298.6227 +/- 389.4 Perihelion: 41.42580251 +/- 0.0214 Aphelion: 44.82265902 +/- 0.0231 Period (y) 283.1980 +/- 0.21 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.90837113 +/- 0.0035 Ecliptic Y 15.40832994 +/- 0.0012 Ecliptic Z -1.09419572 +/- 0.0001 Ecliptic XDOT -0.00083206 +/- 0.0000 Ecliptic YDOT 0.00238654 +/- 0.0000 Ecliptic ZDOT 0.00002579 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.66458851 +/- 0.0033 Geocenter to KBO 43.76364318 +/- 0.0037 # Hcoef: 6.25
The following table shows the complete astrometric record for 02VB131. 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 (02VB131) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.14405 01 14 44.40 +06 21 38.9 22.4R 02VB131 695 Cg8319 2002 11 07.25151 01 14 43.99 +06 21 36.3 02VB131 695 Cg8319 2002 11 30.24813 01 13 28.01 +06 14 28.5 22.5R 02VB131 568 Cg8319 2002 11 30.33764 01 13 27.78 +06 14 27.1 02VB131 568 Cg8319 2002 12 01.23981 01 13 25.42 +06 14 14.5 02VB131 568 Cg8319 2002 12 05.08615 01 13 16.04 +06 13 24.9 22.1R 02VB131 695 Ch0066 2002 12 05.19676 01 13 15.80 +06 13 23.6 02VB131 695 Ch0066 2003 10 23.16123 01 20 16.60 +06 55 41.4 22.2R 02VB131 695 Cl5726 2003 10 23.25665 01 20 16.19 +06 55 39.0 02VB131 695 Cl5726 2004 09 17.49232 01 27 12.11 +07 37 56.3 22.2R 02VB131 568 Cl5726 2004 09 17.53062 01 27 11.97 +07 37 55.3 02VB131 568 Cl5726 2008 12 01.12214 01 40 14.56 +08 58 15.0 23.2R 02VB131 688 C~02MM 2008 12 01.31955 01 40 14.01 +08 58 12.1 02VB131 688 C~02MM
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 -0.08 0.00 0.12 2 0.0003 -6.64 0.02 -0.10 -0.13 3 0.0633 -1217.16 0.10 31.01 -0.07 4 0.0635 -1220.86 0.22 31.01 -0.25 5 0.0660 -1258.21 -0.07 32.63 -0.09 6 0.0765 -1406.46 -0.23 39.51 0.25 7 0.0768 -1410.26 0.07 39.65 0.16 8 0.9583 5355.48 -0.06 33.62 0.03 9 0.9586 5348.92 0.02 33.68 0.01 10 1.8627 12049.64 0.00 82.58 0.06 11 1.8628 12047.33 0.03 82.42 -0.09 12 6.0670 24724.95 0.00 303.52 0.00 13 6.0676 24716.18 ( 0.95) 303.78 ( -0.12)
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.
02VB131 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.436 43.503 43.370 ecceobj 0.034 0.034 0.034 incobj 1.529 1.529 1.529 qmin 41.220 41.298 41.130 qmax 45.100 45.153 45.059 amean 43.150 43.215 43.084 amin 43.135 43.201 43.070 amax 43.160 43.226 43.095 emean 0.032 0.032 0.032 emin 0.020 0.020 0.020 emax 0.045 0.045 0.046 imean 0.954 0.917 0.991 imin 0.405 0.344 0.435 imax 1.331 1.293 1.367 excite_mean 0.036 0.036 0.037 fracstop 1.000 1.000 1.000 cjmean 3.090 3.091 3.089 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 167.8 167.0 168.2 kozaiamp 179.9 179.9 179.9