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: 01XJ255 # Created Wed Nov 27 02:08:14 2024 # Orbit generated from Bernstein formalism # Fitting 7 observations of 7 # Arc: 35.16d # First observation: 2001/12/10 # Last observation: 2002/01/14 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.029014 -0.000001 -0.004229 0.025587 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # Chi-squared of fit: 6.26 DOF: 9 RMS: 0.17 # Min/Max residuals: -0.28 0.28 # Exact a, adot, b, bdot, g, gdot: 1.562307E-05 2.538876E-02 -4.020970E-06 -4.226619E-03 2.495923E-02 1.134698E-03 # Covariance matrix: 7.7113E-12 1.2984E-08 1.4879E-13 4.5630E-12 2.1810E-09 4.8518E-08 1.2984E-08 2.3509E-05 2.5656E-10 1.6002E-08 3.9103E-06 6.9355E-05 1.4879E-13 2.5656E-10 3.0560E-13 -3.2316E-12 4.3301E-11 1.0648E-09 4.5630E-12 1.6002E-08 -3.2316E-12 2.0463E-10 2.2821E-09 -1.3950E-07 2.1810E-09 3.9103E-06 4.3301E-11 2.2821E-09 6.5227E-07 1.2442E-05 4.8518E-08 6.9355E-05 1.0648E-09 -1.3950E-07 1.2442E-05 6.4996E-04 # lat0 lon0 xBary yBary zBary JD0 -0.746742 104.787419 0.435727 -0.011505 -0.876620 2452253.854647 # Heliocentric elements and errors Epoch: 2452250.5000 = 2001/12/07 Mean Anomaly: 14.92186 +/- 11.741 Argument of Peri: 165.51958 +/- 120.493 Long of Asc Node: 279.77962 +/- 0.875 Inclination: 9.45190 +/- 1.810 Eccentricity: 0.11668236 +/- 0.5873 Semi-Major Axis: 46.09636064 +/- 17.6133 Time of Perihelion: 2447512.2395 +/- 118010.8 Perihelion: 40.71772855 +/- 31.2244 Aphelion: 51.47499273 +/- 33.4627 Period (y) 312.9739 +/- 179.38 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -10.02649197 +/- 0.3308 Ecliptic Y 39.69936442 +/- 1.2534 Ecliptic Z -0.52232918 +/- 0.0169 Ecliptic XDOT -0.00273154 +/- 0.0010 Ecliptic YDOT -0.00059636 +/- 0.0026 Ecliptic ZDOT -0.00046500 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.94927233 +/- 1.2178 Geocenter to KBO 40.06533632 +/- 1.2964 # Hcoef: 8.16
The following table shows the complete astrometric record for 01XJ255. 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 (01XJ255) followed by the observatory code and reference code for the source of the astrometry.
2001 12 10.353904 07 03 51.12 +21 52 36.6 23.9r 01XJ255 568 C~5bes 2001 12 10.406564 07 03 50.85 +21 52 36.7 01XJ255 568 C~5bes 2001 12 11.55019 07 03 45.35 +21 52 41.4 01XJ255 568 Ce7056 2001 12 11.57340 07 03 45.26 +21 52 41.6 01XJ255 568 Ce7056 2001 12 11.59678 07 03 45.12 +21 52 41.9 01XJ255 568 Ce7056 2002 01 14.47752 07 00 46.18 +21 55 42.8 24.1R 01XJ255 568 Ce7056 2002 01 14.51314 07 00 45.97 +21 55 42.6 24.0R 01XJ255 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 0.10 0.00 0.28
2 0.0001 -3.75 -0.10 -0.31 0.11
3 0.0033 -80.36 -0.09 -4.01 -0.28
4 0.0033 -81.63 0.23 -3.95 -0.14
5 0.0034 -83.60 -0.14 -3.86 0.02
6 0.0962 -2579.15 0.10 -90.05 0.21
7 0.0963 -2582.03 -0.10 -90.55 -0.20
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.
01XJ255 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