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: 00WW12 # Created Wed Nov 27 02:08:07 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 13 # Arc: 1.05y # First observation: 2000/11/24 # Last observation: 2001/12/12 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.027709 -0.000001 -0.000337 0.026048 0.000000 # Chi-squared of fit: 9.04 DOF: 18 RMS: 0.15 # Min/Max residuals: -0.34 0.34 # Exact a, adot, b, bdot, g, gdot: 1.696936E-05 2.753822E-02 -9.538562E-07 -3.341429E-04 2.607273E-02 -1.021499E-02 # Covariance matrix: 2.8952E-13 2.5822E-11 -1.5791E-15 -3.1663E-13 6.5707E-12 1.1355E-09 2.5822E-11 2.1052E-08 -5.5516E-13 -2.5634E-10 4.7418E-09 9.2454E-07 -1.5791E-15 -5.5516E-13 1.8946E-13 -1.7891E-13 -1.3441E-13 -2.4293E-11 -3.1663E-13 -2.5634E-10 -1.7891E-13 3.6310E-12 -5.7739E-11 -1.1258E-08 6.5707E-12 4.7418E-09 -1.3441E-13 -5.7739E-11 1.0755E-09 2.0818E-07 1.1355E-09 9.2454E-07 -2.4293E-11 -1.1258E-08 2.0818E-07 4.0605E-05 # lat0 lon0 xBary yBary zBary JD0 -2.464886 56.067589 -0.105187 -0.042068 -0.974196 2451872.594203 # Heliocentric elements and errors Epoch: 2451870.5000 = 2000/11/22 Mean Anomaly: 328.33906 +/- 12.286 Argument of Peri: 328.26998 +/- 10.840 Long of Asc Node: 161.59101 +/- 0.328 Inclination: 2.49253 +/- 0.004 Eccentricity: 0.42875671 +/- 0.2457 Semi-Major Axis: 54.01997865 +/- 13.7113 Time of Perihelion: 2464624.6452 +/- 957.4 Perihelion: 30.85855020 +/- 15.4118 Aphelion: 77.18140710 +/- 23.6632 Period (y) 397.0451 +/- 151.17 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.85153052 +/- 0.0269 Ecliptic Y 32.66583119 +/- 0.0400 Ecliptic Z -1.64957265 +/- 0.0021 Ecliptic XDOT -0.00300622 +/- 0.0004 Ecliptic YDOT 0.00072823 +/- 0.0006 Ecliptic ZDOT 0.00001125 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.33531496 +/- 0.0364 Geocenter to KBO 38.35424775 +/- 0.0482 # Hcoef: 7.62
The following table shows the complete astrometric record for 00WW12. 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 (00WW12) followed by the observatory code and reference code for the source of the astrometry.
2000 11 24.09346 03 37 24.71 +16 52 27.0 00WW12 809 Cc2825 2000 11 24.13571 03 37 24.49 +16 52 26.0 23.0R 00WW12 809 Cc2825 2000 11 24.18362 03 37 24.25 +16 52 25.3 22.9R 00WW12 809 Cc2825 2000 11 25.07396 03 37 19.58 +16 52 09.4 23.2R 00WW12 809 Cc2825 2000 11 25.10549 03 37 19.39 +16 52 08.6 23.2R 00WW12 809 Cc2825 2000 11 25.14129 03 37 19.21 +16 52 08.3 23.4R 00WW12 809 Cc2825 2000 12 16.24842 03 35 34.68 +16 46 32.6 00WW12 695 Cc3925 2000 12 16.33372 03 35 34.31 +16 46 30.6 23.0R 00WW12 695 Cc3925 2000 12 16.36634 03 35 34.15 +16 46 30.0 23.6R 00WW12 695 Cc3925 2001 12 12.04790 03 42 25.27 +17 08 25.6 00WW12 950 Ce3547 2001 12 12.08179 03 42 25.10 +17 08 24.9 00WW12 950 Ce3547 2001 12 12.11790 03 42 24.91 +17 08 24.4 00WW12 950 Ce3547 2001 12 12.84125 03 42 21.43 +17 08 13.8 00WW12 950 Ce3547
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 -0.06 0.00 0.15
2 0.0001 -3.30 -0.04 -0.24 -0.11
3 0.0002 -6.82 0.22 -0.12 -0.02
4 0.0027 -75.71 0.12 -0.03 -0.17
5 0.0028 -78.55 -0.25 -0.17 -0.34
6 0.0029 -81.13 -0.02 0.13 -0.06
7 0.0607 -1618.92 ( -0.01) 23.72 ( 1.20)
8 0.0609 -1624.56 0.10 23.02 0.34
9 0.0610 -1626.93 -0.09 22.97 0.24
10 1.0485 4416.86 0.11 -53.85 0.12
11 1.0486 4414.32 0.03 -53.98 -0.07
12 1.0487 4411.56 -0.13 -53.86 0.01
13 1.0506 4360.55 -0.01 -52.91 -0.09
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.
00WW12 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