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: 06WF206
# Created Sat Apr 27 01:12:53 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 16.24y
# First observation: 2006/11/23
# Last observation: 2023/02/20
# Chi-squared of fit: 27.44 DOF: 48 RMS: 0.18
# Min/Max residuals: -0.31 0.56
# Exact a, adot, b, bdot, g, gdot:
1.630748E-05 2.125327E-02 -4.400205E-07 2.650609E-04 2.274777E-02 -5.278839E-04
# Covariance matrix:
1.8584E-13 -1.9449E-14 -9.5476E-16 -3.1047E-16 1.2308E-13 -4.4369E-14
-1.9449E-14 4.1051E-14 -8.3469E-16 5.5047E-16 3.6478E-14 1.1777E-13
-9.5476E-16 -8.3469E-16 8.6638E-14 -6.7123E-15 -2.4998E-15 -2.3930E-15
-3.1047E-16 5.5047E-16 -6.7123E-15 1.3740E-15 3.1661E-16 1.6428E-15
1.2308E-13 3.6478E-14 -2.4998E-15 3.1661E-16 2.2451E-13 9.8983E-14
-4.4369E-14 1.1777E-13 -2.3930E-15 1.6428E-15 9.8983E-14 3.4995E-13
# lat0 lon0 xBary yBary zBary JD0
1.929973 127.764831 0.912129 0.013274 -0.390324 2454063.001234
# Heliocentric elements and errors
Epoch: 2454062.5000 = 2006/11/23
Mean Anomaly: 250.66738 +/- 0.069
Argument of Peri: 183.18262 +/- 0.060
Long of Asc Node: 58.20628 +/- 0.003
Inclination: 2.05713 +/- 0.000
Eccentricity: 0.05158191 +/- 0.0000
Semi-Major Axis: 43.51501665 +/- 0.0033
Time of Perihelion: 2485904.7995 +/- 21.6
Perihelion: 41.27042881 +/- 0.0034
Aphelion: 45.75960450 +/- 0.0037
Period (y) 287.0562 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -26.42824631 +/- 0.0006
Ecliptic Y 35.59526087 +/- 0.0007
Ecliptic Z 1.48046397 +/- 0.0000
Ecliptic XDOT -0.00197748 +/- 0.0000
Ecliptic YDOT -0.00162183 +/- 0.0000
Ecliptic ZDOT 0.00002968 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.35841880 +/- 0.0007
Geocenter to KBO 43.96038142 +/- 0.0009
# Hcoef: 6.62
The following table shows the complete astrometric record for 06WF206. 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 (06WF206) followed by the observatory code and reference code for the source of the astrometry.
2006 11 23.50048 08 42 49.07 +20 11 33.1 23.3i 06WF206 568 C~0VEQ 2006 11 24.49147 08 42 47.65 +20 11 40.9 22.7i 06WF206 568 C~0VEQ 2006 11 24.54300 08 42 47.60 +20 11 41.2 23.2i 06WF206 568 C~0VEQ 2006 11 24.59500 08 42 47.49 +20 11 41.6 22.9i 06WF206 568 C~0VEQ 2007 01 19.31674 08 39 32.29 +20 25 35.2 06WF206 568 C~0VEQ 2007 01 19.35945 08 39 32.09 +20 25 36.0 23.2g 06WF206 568 C~0VEQ 2007 01 19.39213 08 39 31.92 +20 25 36.7 23.3g 06WF206 568 C~0VEQ 2007 01 20.38005 08 39 27.16 +20 25 54.9 06WF206 568 C~0VEQ 2007 02 21.32921 08 36 55.92 +20 35 02.5 06WF206 675 C~0VEQ 2007 02 21.37504 08 36 55.71 +20 35 03.1 21.9R 06WF206 675 C~0VEQ 2007 05 15.18866 08 35 10.61 +20 38 23.7 06WF206 675 C~0VEQ 2007 05 15.19322 08 35 10.66 +20 38 23.5 06WF206 675 C~0VEQ 2007 11 08.41603 08 47 58.74 +19 51 54.6 22.3r 06WF206 695 C~0VEQ 2007 11 09.40812 08 47 58.85 +19 51 57.0 22.2r 06WF206 695 C~0VEQ 2009 01 26.47605 08 49 06.31 +19 51 01.7 23.0r 06WF206 568 C~0VER 2009 01 26.49295 08 49 06.22 +19 51 02.0 22.8r 06WF206 568 C~0VER 2009 01 26.50972 08 49 06.14 +19 51 02.2 23.3r 06WF206 568 C~0VER 2009 01 27.40222 08 49 01.83 +19 51 19.6 23.3r 06WF206 568 C~0VER 2009 01 27.41770 08 49 01.76 +19 51 19.8 23.3r 06WF206 568 C~0VER 2013 03 13.13655 09 05 59.24 +18 44 23.1 23.3R 06WF206 G37 C~0qSk 2013 03 13.18520 09 05 59.07 +18 44 23.8 06WF206 G37 C~0qSk 2021 01 11.425760 09 50 27.650 +15 17 30.38 23.2G 06WF206 G37 C~4U08 2021 01 11.466500 09 50 27.492 +15 17 31.29 06WF206 G37 C~4U08 2021 01 11.506740 09 50 27.339 +15 17 32.04 06WF206 G37 C~4U08 2023 02 20.263100 09 57 29.010 +14 41 36.23 23.3G 06WF206 G37 C~6El0 2023 02 20.314490 09 57 28.757 +14 41 37.57 06WF206 G37 C~6El0 2023 02 20.366830 09 57 28.509 +14 41 38.72 06WF206 G37 C~6El0
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 -0.29 0.00 0.21
2 0.0027 0.00 -0.19 0.00 -0.12
3 0.0029 0.00 0.26 0.00 -0.27
4 0.0030 0.00 -0.16 0.00 -0.31
5 0.1556 0.00 -0.27 0.00 0.10
6 0.1557 0.00 -0.15 0.00 0.10
7 0.1558 0.00 -0.30 0.00 0.19
8 0.1585 0.00 -0.28 0.00 0.16
9 0.2459 0.00 0.24 0.00 0.04
10 0.2461 0.00 0.11 0.00 -0.03
11 0.4728 0.00 -0.03 0.00 0.06
12 0.4728 0.00 0.56 0.00 -0.09
13 0.9580 0.00 0.37 0.00 0.08
14 0.9607 0.00 0.23 0.00 0.01
15 2.1765 0.00 0.05 0.00 -0.04
16 2.1766 0.00 -0.05 0.00 -0.06
17 2.1766 0.00 -0.01 0.00 -0.18
18 2.1791 0.00 0.07 0.00 0.01
19 2.1791 0.00 0.16 0.00 -0.09
20 6.3015 0.00 -0.22 0.00 0.11
21 6.3017 0.00 -0.11 0.00 0.14
22 14.1353 0.00 0.18 0.00 -0.01
23 14.1354 0.00 0.12 0.00 0.05
24 14.1355 0.00 0.11 0.00 -0.04
25 16.2430 0.00 0.04 0.00 -0.05
26 16.2432 0.00 -0.13 0.00 0.04
27 16.2433 0.00 -0.16 0.00 -0.07
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.
06WF206 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.585 43.585 43.585 ecceobj 0.046 0.046 0.046 incobj 2.053 2.053 2.053 qmin 40.885 40.878 40.877 qmax 46.407 46.404 46.400 amean 43.564 43.564 43.564 amin 43.226 43.226 43.220 amax 43.915 43.920 43.912 emean 0.040 0.040 0.040 emin 0.023 0.023 0.023 emax 0.057 0.057 0.057 imean 1.063 1.063 1.063 imin 0.164 0.166 0.164 imax 1.662 1.663 1.661 excite_mean 0.044 0.044 0.044 fracstop 1.000 1.000 1.000 cjmean 3.094 3.094 3.094 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 180.9 180.9 181.0 kozaiamp 180.0 180.0 179.9