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: 00WX12 # Created Fri Apr 26 01:10:16 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 24.21d # First observation: 2000/11/24 # Last observation: 2000/12/18 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.019556 -0.000000 0.006029 0.025544 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 11.72 DOF: 13 RMS: 0.20 # Min/Max residuals: -0.28 0.46 # Exact a, adot, b, bdot, g, gdot: 8.396478E-06 1.437254E-02 3.688984E-06 6.131710E-03 2.472529E-02 -1.882822E-02 # Covariance matrix: 2.0951E-11 2.8634E-08 1.0868E-13 -4.8706E-10 4.7956E-09 4.2106E-09 2.8634E-08 3.9640E-05 1.5088E-10 -6.7463E-07 6.6363E-06 4.7564E-06 1.0868E-13 1.5088E-10 2.5150E-13 -6.4989E-12 2.5222E-11 -6.6397E-12 -4.8706E-10 -6.7463E-07 -6.4989E-12 1.1668E-08 -1.1290E-07 -5.5467E-08 4.7956E-09 6.6363E-06 2.5222E-11 -1.1290E-07 1.1111E-06 8.8590E-07 4.2106E-09 4.7564E-06 -6.6397E-12 -5.5467E-08 8.8590E-07 6.0504E-05 # lat0 lon0 xBary yBary zBary JD0 -2.947165 56.467241 -0.098471 -0.050302 -0.974507 2451872.599193 # Heliocentric elements and errors Epoch: 2451870.5000 = 2000/11/22 Mean Anomaly: 316.27934 +/- 36.117 Argument of Peri: 131.16698 +/- 24.230 Long of Asc Node: 63.34176 +/- 3.016 Inclination: 23.18235 +/- 9.239 Eccentricity: 0.76668340 +/- 0.1872 Semi-Major Axis: 42.79837730 +/- 22.5688 Time of Perihelion: 2464290.5558 +/- 2958.8 Perihelion: 9.98557204 +/- 9.5885 Aphelion: 75.61118257 +/- 40.6693 Period (y) 279.9943 +/- 221.47 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.77412582 +/- 0.9514 Ecliptic Y 34.54142658 +/- 1.4353 Ecliptic Z -2.07933402 +/- 0.0886 Ecliptic XDOT -0.00246540 +/- 0.0006 Ecliptic YDOT -0.00082290 +/- 0.0009 Ecliptic ZDOT 0.00078544 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 41.42577202 +/- 1.3061 Geocenter to KBO 40.44442065 +/- 1.7243 # Hcoef: 7.16
The following table shows the complete astrometric record for 00WX12. 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 (00WX12) followed by the observatory code and reference code for the source of the astrometry.
2000 11 24.09845 03 39 29.90 +16 29 49.0 22.7R 00WX12 809 Cc2825 2000 11 24.14064 03 39 29.66 +16 29 48.3 22.8R 00WX12 809 Cc2825 2000 11 24.18875 03 39 29.37 +16 29 47.5 23.5R 00WX12 809 Cc2825 2000 11 25.07396 03 39 24.52 +16 29 35.0 23.1R 00WX12 809 Cc2825 2000 11 25.10549 03 39 24.35 +16 29 34.3 23.0R 00WX12 809 Cc2825 2000 11 25.14129 03 39 24.20 +16 29 33.7 23.1R 00WX12 809 Cc2825 2000 12 18.18656 03 37 24.85 +16 24 43.3 23.2R 00WX12 695 Cc3925 2000 12 18.26616 03 37 24.48 +16 24 42.8 22.6R 00WX12 695 Cc3925 2000 12 18.31338 03 37 24.25 +16 24 42.6 22.6R 00WX12 695 Cc3925
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 0.16 0.00 0.05
2 0.0001 -3.52 0.07 0.11 -0.02
3 0.0002 -7.76 -0.26 0.29 -0.05
4 0.0027 -78.53 -0.22 4.11 0.27
5 0.0028 -81.07 -0.21 3.99 0.01
6 0.0029 -83.31 0.46 3.90 -0.24
7 0.0659 -1821.01 -0.16 117.05 -0.28
8 0.0662 -1826.30 0.07 117.80 -0.01
9 0.0663 -1829.57 0.08 118.37 0.29
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.
00WX12 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