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: 01XG255 # Created Wed Nov 27 02:08:14 2024 # Orbit generated from Bernstein formalism # Fitting 5 observations of 5 # Arc: 35.85d # First observation: 2001/12/09 # Last observation: 2002/01/14 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # Chi-squared of fit: 0.98 DOF: 6 RMS: 0.08 # Min/Max residuals: -0.18 0.12 # Exact a, adot, b, bdot, g, gdot: 1.561161E-05 2.457186E-02 -4.715029E-07 -1.001272E-03 2.483717E-02 0.000000E+00 # Covariance matrix: 3.1683E-11 4.9328E-08 9.4692E-14 1.0065E-10 7.9655E-09 0.0000E+00 4.9328E-08 7.8625E-05 1.5091E-10 1.6041E-07 1.2694E-05 0.0000E+00 9.4692E-14 1.5091E-10 7.2706E-13 -7.1254E-12 2.4365E-11 0.0000E+00 1.0065E-10 1.6041E-07 -7.1254E-12 4.5460E-10 2.5899E-08 0.0000E+00 7.9655E-09 1.2694E-05 2.4365E-11 2.5899E-08 2.0496E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 2.0162E-04 # lat0 lon0 xBary yBary zBary JD0 -0.642066 106.050173 0.468543 -0.009710 -0.859658 2452252.972433 # Heliocentric elements and errors Epoch: 2452250.5000 = 2001/12/07 Mean Anomaly: 339.63761 +/- 354.282 Argument of Peri: 216.68556 +/- 60.075 Long of Asc Node: 270.29660 +/- 5.451 Inclination: 2.41200 +/- 0.847 Eccentricity: 0.02960123 +/- 0.5637 Semi-Major Axis: 42.29873899 +/- 22.0635 Time of Perihelion: 2457934.0002 +/- 299818.0 Perihelion: 41.04664429 +/- 32.0450 Aphelion: 43.55083370 +/- 32.9321 Period (y) 275.1055 +/- 215.25 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -10.91725009 +/- 0.6414 Ecliptic Y 39.65155190 +/- 2.2302 Ecliptic Z -0.45120595 +/- 0.0260 Ecliptic XDOT -0.00261127 +/- 0.0009 Ecliptic YDOT -0.00075009 +/- 0.0015 Ecliptic ZDOT -0.00011015 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.12949677 +/- 2.1568 Geocenter to KBO 40.26224137 +/- 2.3208 # Hcoef: 8.25
The following table shows the complete astrometric record for 01XG255. 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 (01XG255) followed by the observatory code and reference code for the source of the astrometry.
2001 12 09.47169 07 09 18.588 +21 50 13.02 01XG255 568 Ce7056 2001 12 09.55888 07 09 18.175 +21 50 13.67 01XG255 568 Ce7056 2002 01 14.25745 07 06 12.009 +21 54 49.56 24.1R 01XG255 568 Ce7056 2002 01 14.28303 07 06 11.860 +21 54 49.55 23.9R 01XG255 568 Ce7056 2002 01 14.32616 07 06 11.635 +21 54 50.20 24.0R 01XG255 568 Ce7056
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 0.01 0.00 -0.03
2 0.0002 -5.79 -0.01 -0.04 0.03
3 0.0980 -2611.85 0.05 -26.52 0.06
4 0.0980 -2613.91 -0.07 -26.77 -0.18
5 0.0982 -2617.10 0.02 -26.47 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.
01XG255 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