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: 06QZ180
# Created Fri Nov 22 02:08:52 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 20 observations of 20
# Arc: 18.20y
# First observation: 2006/08/21
# Last observation: 2024/11/01
# Chi-squared of fit: 53.91 DOF: 34 RMS: 0.29
# Min/Max residuals: -0.26 1.19
# Exact a, adot, b, bdot, g, gdot:
1.376088E-05 1.941585E-02 -5.328463E-06 -8.325202E-03 2.247640E-02 7.456152E-04
# Covariance matrix:
4.5354E-13 -6.6649E-14 -6.3145E-14 2.0051E-14 4.5114E-14 -1.2858E-13
-6.6649E-14 1.7921E-14 1.9703E-14 -6.1720E-15 3.3648E-14 3.9308E-14
-6.3145E-14 1.9703E-14 3.4440E-13 -3.4820E-14 -5.8568E-15 5.9072E-14
2.0051E-14 -6.1720E-15 -3.4820E-14 5.6075E-15 3.1617E-15 -1.8726E-14
4.5114E-14 3.3648E-14 -5.8568E-15 3.1617E-15 7.4072E-13 -2.4461E-14
-1.2858E-13 3.9308E-14 5.9072E-14 -1.8726E-14 -2.4461E-14 1.1999E-13
# lat0 lon0 xBary yBary zBary JD0
6.889648 -16.158728 0.273343 0.117060 -0.967801 2453968.697794
# Heliocentric elements and errors
Epoch: 2453968.5000 = 2006/08/21
Mean Anomaly: 61.64209 +/- 0.143
Argument of Peri: 97.86558 +/- 0.156
Long of Asc Node: 178.80634 +/- 0.000
Inclination: 24.11034 +/- 0.000
Eccentricity: 0.03678575 +/- 0.0001
Semi-Major Axis: 46.21581394 +/- 0.0071
Time of Perihelion: 2434318.6513 +/- 45.9
Perihelion: 44.51573050 +/- 0.0073
Aphelion: 47.91589738 +/- 0.0078
Period (y) 314.1913 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 43.28234426 +/- 0.0016
Ecliptic Y -12.82922458 +/- 0.0005
Ecliptic Z 5.33679835 +/- 0.0002
Ecliptic XDOT 0.00086617 +/- 0.0000
Ecliptic YDOT 0.00220776 +/- 0.0000
Ecliptic ZDOT -0.00099592 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.45800008 +/- 0.0016
Geocenter to KBO 44.49112219 +/- 0.0017
# Hcoef: 7.65
The following table shows the complete astrometric record for 06QZ180. 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 (06QZ180) followed by the observatory code and reference code for the source of the astrometry.
2006 08 21.19704 22 49 52.77 +00 00 32.4 23.0R 06QZ180 807 Cs5502 2006 08 21.28388 22 49 52.41 +00 00 30.2 06QZ180 807 Cs5502 2006 08 22.18982 22 49 48.84 +00 00 05.8 06QZ180 807 Cs5502 2013 09 30.11286 23 20 59.210 -00 25 54.92 24.8i 06QZ180 W84 C~52RU 2013 10 12.09348 23 20 15.677 -00 32 00.33 23.6i 06QZ180 W84 C~52RU 2013 10 28.05086 23 19 27.567 -00 39 19.84 23.6r 06QZ180 W84 C~52RU 2015 11 01.05690 23 28 49.290 -00 42 34.25 24.0r 06QZ180 W84 C~52RU 2016 09 05.33410 23 36 57.61 -00 15 53.8 23.7i 06QZ180 T09 C~7bBc 2016 09 05.35316 23 36 57.53 -00 15 54.3 24.3i 06QZ180 T09 C~7bBc 2016 09 05.36940 23 36 57.46 -00 15 54.8 23.8i 06QZ180 T09 C~7bBc 2016 09 05.38564 23 36 57.40 -00 15 55.2 24.2i 06QZ180 T09 C~7bBc 2016 09 07.44049 23 36 49.24 -00 16 57.7 25.0r 06QZ180 T09 C~7bBc 2016 09 07.47153 23 36 49.11 -00 16 58.7 24.6r 06QZ180 T09 C~7bBc 2016 09 07.48031 23 36 49.06 -00 16 59.0 24.7r 06QZ180 T09 C~7bBc 2016 09 30.09304 23 35 18.463 -00 28 45.80 23.5r 06QZ180 W84 C~52RU 2016 10 05.14994 23 34 59.011 -00 31 21.95 24.1r 06QZ180 W84 C~52RU 2018 09 14.30118 23 45 55.572 -00 22 01.13 23.9r 06QZ180 W84 C~52RU 2024 11 01.08396 00 11 24.376 -00 49 48.66 24.2G 06QZ180 G37 2024 11 01.13319 00 11 24.218 -00 49 49.59 06QZ180 G37 2024 11 01.17961 00 11 24.087 -00 49 50.92 06QZ180 G37
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 0.02 0.00 -0.11
2 0.0002 0.00 -0.13 0.00 0.03
3 0.0027 0.00 0.12 0.00 0.17
4 7.1100 0.00 -0.02 0.00 0.04
5 7.1428 0.00 0.00 0.00 -0.26
6 7.1865 0.00 0.04 0.00 -0.08
7 9.1961 0.00 0.08 0.00 0.04
8 10.0428 0.00 0.01 0.00 -0.06
9 10.0429 0.00 -0.05 0.00 0.02
10 10.0429 0.00 -0.12 0.00 0.01
11 10.0430 0.00 -0.04 0.00 0.10
12 10.0486 0.00 0.15 0.00 0.09
13 10.0487 0.00 0.09 0.00 0.04
14 10.0487 0.00 -0.12 0.00 0.01
15 10.1106 0.00 0.07 0.00 -0.05
16 10.1244 0.00 -0.07 0.00 0.07
17 12.0660 0.00 0.05 0.00 0.01
18 18.1982 0.00 0.98 0.00 -0.02
19 18.1983 0.00 0.95 0.00 0.22
20 18.1984 0.00 1.19 0.00 -0.02
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.
06QZ180 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.464 46.464 46.464 ecceobj 0.036 0.036 0.036 incobj 24.007 24.007 24.007 qmin 44.154 44.154 44.154 qmax 48.663 48.664 48.661 amean 46.315 46.315 46.315 amin 45.946 45.948 45.947 amax 46.679 46.682 46.677 emean 0.033 0.033 0.033 emin 0.024 0.024 0.024 emax 0.043 0.043 0.043 imean 23.745 23.745 23.745 imin 23.515 23.515 23.515 imax 23.968 23.968 23.969 excite_mean 0.404 0.404 0.404 fracstop 1.000 1.000 1.000 cjmean 2.919 2.919 2.919 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 180.5 180.5 180.5 kozaiamp 179.9 179.9 180.0