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: 02VE131 # Created Fri Nov 22 02:08:24 2024 # Orbit generated from Bernstein formalism # Fitting 5 observations of 5 # Arc: 25.09d # First observation: 2002/11/07 # Last observation: 2002/12/02 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.005078 0.000000 -0.004700 0.017422 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # WARNING MRQMIN stopped after 14 iterations -- oscilliatory solution # WARNING MRQMIN stopped after 15 iterations -- oscilliatory solution # Chi-squared of fit: 1.45 DOF: 5 RMS: 0.10 # Min/Max residuals: -0.21 0.17 # Exact a, adot, b, bdot, g, gdot: 8.486309E-06 1.027830E-02 -3.974467E-06 -4.634094E-03 1.825000E-02 1.070323E-02 # Covariance matrix: 1.5888E-10 1.8436E-07 2.2855E-12 2.2278E-09 2.9719E-08 -1.0156E-07 1.8436E-07 2.1492E-04 2.6643E-09 2.5970E-06 3.4643E-05 -1.1844E-04 2.2855E-12 2.6643E-09 7.5117E-13 2.1403E-11 4.2944E-10 -1.4789E-09 2.2278E-09 2.5970E-06 2.1403E-11 3.1658E-08 4.1860E-07 -1.4409E-06 2.9719E-08 3.4643E-05 4.2944E-10 4.1860E-07 5.5843E-06 -1.9057E-05 -1.0156E-07 -1.1844E-04 -1.4789E-09 -1.4409E-06 -1.9057E-05 9.6441E-05 # lat0 lon0 xBary yBary zBary JD0 -3.236441 69.641186 0.419773 -0.050528 -0.893248 2452585.878523 # Heliocentric elements and errors Epoch: 2452580.5000 = 2002/11/02 Mean Anomaly: 49.00817 +/- 49.287 Argument of Peri: 56.30882 +/- 78.158 Long of Asc Node: 242.13195 +/- 10.159 Inclination: 24.29371 +/- 30.553 Eccentricity: 0.68099766 +/- 0.7334 Semi-Major Axis: 57.03888460 +/- 29.4253 Time of Perihelion: 2431160.4251 +/- 13759.4 Perihelion: 18.19553778 +/- 42.8701 Aphelion: 95.88223143 +/- 64.7797 Period (y) 430.7891 +/- 333.35 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.73591407 +/- 2.4650 Ecliptic Y 51.98758385 +/- 6.6410 Ecliptic Z -3.09372227 +/- 0.4006 Ecliptic XDOT -0.00090899 +/- 0.0024 Ecliptic YDOT 0.00199919 +/- 0.0010 Ecliptic ZDOT -0.00078454 +/- 0.0002 # Distances at JD0 (AU) Heliocenter to KBO 55.69368273 +/- 6.2604 Geocenter to KBO 54.79451573 +/- 7.0951 # Hcoef: 6.37
The following table shows the complete astrometric record for 02VE131. 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 (02VE131) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.37778 04 33 57.19 +18 41 43.3 23.4R 02VE131 695 Cg8319 2002 11 07.47605 04 33 56.81 +18 41 42.1 02VE131 695 Cg8319 2002 12 01.43130 04 32 21.26 +18 36 58.0 23.5R 02VE131 568 Cg8319 2002 12 01.51771 04 32 20.87 +18 36 57.0 02VE131 568 Cg8319 2002 12 02.46329 04 32 16.98 +18 36 46.2 02VE131 568 Cg8319
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 0.09 0.00 -0.01
2 0.0003 -5.52 -0.06 -0.40 -0.00
3 0.0659 -1390.51 0.17 -81.51 -0.03
4 0.0661 -1396.14 -0.21 -81.68 0.02
5 0.0687 -1452.43 0.07 -84.15 -0.01
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.
02VE131 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 excite_mean 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