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: 01XV254 # Created Wed Nov 27 02:08:14 2024 # Orbit generated from Bernstein formalism # Fitting 7 observations of 7 # Arc: 58.89d # First observation: 2001/12/09 # Last observation: 2002/02/06 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.045883 0.000002 0.002088 0.026462 0.000000 # Chi-squared of fit: 1.50 DOF: 8 RMS: 0.08 # Min/Max residuals: -0.16 0.16 # Exact a, adot, b, bdot, g, gdot: 1.420643E-05 1.962086E-02 1.734694E-06 2.097432E-03 2.216276E-02 -2.704437E-03 # Covariance matrix: 4.2308E-12 5.2909E-09 4.4407E-13 -4.5628E-12 8.4307E-10 -8.4201E-09 5.2909E-09 7.4856E-06 6.2896E-10 -6.5962E-09 1.1907E-06 -1.2346E-05 4.4407E-13 6.2896E-10 4.8621E-13 -3.7765E-12 1.0004E-10 -1.0418E-09 -4.5628E-12 -6.5962E-09 -3.7765E-12 5.2370E-11 -1.0475E-09 1.1479E-08 8.4307E-10 1.1907E-06 1.0004E-10 -1.0475E-09 1.8943E-07 -1.9585E-06 -8.4201E-09 -1.2346E-05 -1.0418E-09 1.1479E-08 -1.9585E-06 2.2187E-05 # lat0 lon0 xBary yBary zBary JD0 -0.971642 105.221300 0.454308 -0.014787 -0.867163 2452253.083543 # Heliocentric elements and errors Epoch: 2452250.5000 = 2001/12/07 Mean Anomaly: 258.04090 +/- 131.105 Argument of Peri: 109.35664 +/- 105.993 Long of Asc Node: 113.51585 +/- 1.186 Inclination: 6.16216 +/- 0.822 Eccentricity: 0.15343038 +/- 0.1178 Semi-Major Axis: 43.68088813 +/- 9.8772 Time of Perihelion: 2482115.2664 +/- 37041.7 Perihelion: 36.97891296 +/- 9.8186 Aphelion: 50.38286330 +/- 12.5012 Period (y) 288.6991 +/- 97.92 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -11.63287539 +/- 0.2325 Ecliptic Y 44.49316697 +/- 0.8549 Ecliptic Z -0.76506486 +/- 0.0150 Ecliptic XDOT -0.00226085 +/- 0.0001 Ecliptic YDOT -0.00095449 +/- 0.0006 Ecliptic ZDOT 0.00026494 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.99511953 +/- 0.8291 Geocenter to KBO 45.12074108 +/- 0.8861 # Hcoef: 6.99
The following table shows the complete astrometric record for 01XV254. 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 (01XV254) followed by the observatory code and reference code for the source of the astrometry.
2001 12 09.58280 07 05 36.08 +21 36 18.8 01XV254 568 Ce7056 2001 12 09.61794 07 05 35.94 +21 36 19.1 01XV254 568 Ce7056 2001 12 09.64248 07 05 35.82 +21 36 19.3 01XV254 568 Ce7056 2002 01 09.38197 07 03 10.66 +21 40 32.2 23.6R 01XV254 568 Ce7056 2002 01 09.40515 07 03 10.56 +21 40 32.7 23.3R 01XV254 568 Ce7056 2002 02 06.42242 07 01 03.00 +21 44 28.1 22.8R 01XV254 568 Cf2430 2002 02 06.47510 07 01 02.79 +21 44 28.5 01XV254 568 Cf2430
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 -0.04 0.00 -0.05
2 0.0001 -1.97 0.12 0.08 0.02
3 0.0002 -3.66 -0.08 0.09 0.03
4 0.0843 -2043.20 -0.09 28.03 -0.16
5 0.0844 -2044.64 0.09 28.38 0.16
6 0.1611 -3837.68 -0.02 72.68 -0.00
7 0.1612 -3840.64 0.02 72.77 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.
01XV254 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