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 Wed Mar 26 01:08:57 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 30 observations of 30
# Arc: 18.20y
# First observation: 2006/08/21
# Last observation: 2024/11/01
# Chi-squared of fit: 11.51 DOF: 54 RMS: 0.11
# Min/Max residuals: -0.33 0.23
# Exact a, adot, b, bdot, g, gdot:
1.367604E-05 1.941534E-02 -5.494234E-06 -8.324987E-03 2.247440E-02 7.430170E-04
# Covariance matrix:
4.4048E-13 -6.9749E-14 -7.4536E-14 2.0009E-14 -2.5423E-14 -1.2646E-13
-6.9749E-14 1.5475E-14 2.1975E-14 -5.9178E-15 1.7040E-16 3.7446E-14
-7.4536E-14 2.1975E-14 3.1994E-13 -3.5622E-14 -1.8581E-14 6.7797E-14
2.0009E-14 -5.9178E-15 -3.5622E-14 5.5661E-15 5.5062E-15 -1.8352E-14
-2.5423E-14 1.7040E-16 -1.8581E-14 5.5062E-15 1.9563E-13 -3.6060E-14
-1.2646E-13 3.7446E-14 6.7797E-14 -1.8352E-14 -3.6060E-14 1.1635E-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: 61.27698 +/- 0.075
Argument of Peri: 98.24453 +/- 0.082
Long of Asc Node: 178.80634 +/- 0.000
Inclination: 24.11038 +/- 0.000
Eccentricity: 0.03676935 +/- 0.0000
Semi-Major Axis: 46.22951339 +/- 0.0038
Time of Perihelion: 2434426.3534 +/- 24.1
Perihelion: 44.52968411 +/- 0.0040
Aphelion: 47.92934266 +/- 0.0043
Period (y) 314.3310 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 43.28610783 +/- 0.0008
Ecliptic Y -12.83031893 +/- 0.0002
Ecliptic Z 5.33726449 +/- 0.0001
Ecliptic XDOT 0.00086592 +/- 0.0000
Ecliptic YDOT 0.00220799 +/- 0.0000
Ecliptic ZDOT -0.00099602 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.46194717 +/- 0.0008
Geocenter to KBO 44.49506933 +/- 0.0009
# Hcoef: 7.63
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 07 15.57952 23 34 49.82 +00 04 46.2 24.7r 06QZ180 T09 C~8iR0 2015 07 15.58992 23 34 49.81 +00 04 46.1 24.7r 06QZ180 T09 C~8iR0 2015 07 15.60034 23 34 49.80 +00 04 45.7 24.8r 06QZ180 T09 C~8iR0 2015 07 22.54282 23 34 37.30 +00 03 11.7 23.9z 06QZ180 T09 C~8iR0 2015 07 22.55739 23 34 37.28 +00 03 11.4 23.9z 06QZ180 T09 C~8iR0 2015 07 22.57198 23 34 37.23 +00 03 11.2 24.2z 06QZ180 T09 C~8iR0 2015 07 22.60096 23 34 37.17 +00 03 10.8 23.8z 06QZ180 T09 C~8iR0 2015 07 23.55847 23 34 35.19 +00 02 55.9 23.9y 06QZ180 T09 C~8iR0 2015 07 23.57297 23 34 35.16 +00 02 55.7 23.3y 06QZ180 T09 C~8iR0 2015 07 23.60209 23 34 35.10 +00 02 55.2 23.7y 06QZ180 T09 C~8iR0 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 01.083960 00 11 24.376 -00 49 48.66 24.2G 06QZ180 G37 C~8SFP 2024 11 01.133190 00 11 24.218 -00 49 49.59 06QZ180 G37 C~8SFP 2024 11 01.179610 00 11 24.087 -00 49 50.92 06QZ180 G37 C~8SFP
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 0.03 0.00 -0.07
2 0.0002 0.00 -0.13 0.00 0.07
3 0.0027 0.00 0.12 0.00 0.21
4 7.1100 0.00 0.07 0.00 0.00
5 7.1428 0.00 0.04 0.00 -0.33
6 7.1865 0.00 0.00 0.00 -0.19
7 8.8991 0.00 -0.12 0.00 -0.06
8 8.8991 0.00 -0.02 0.00 -0.04
9 8.8991 0.00 0.09 0.00 -0.31
10 8.9181 0.00 0.01 0.00 0.12
11 8.9182 0.00 0.17 0.00 0.05
12 8.9182 0.00 -0.11 0.00 0.07
13 8.9183 0.00 -0.10 0.00 0.11
14 8.9209 0.00 -0.10 0.00 0.05
15 8.9209 0.00 -0.08 0.00 0.08
16 8.9210 0.00 -0.03 0.00 0.03
17 9.1961 0.00 -0.03 0.00 -0.06
18 10.0428 0.00 0.09 0.00 -0.04
19 10.0429 0.00 0.04 0.00 0.04
20 10.0429 0.00 -0.03 0.00 0.03
21 10.0430 0.00 0.05 0.00 0.12
22 10.0486 0.00 0.23 0.00 0.10
23 10.0487 0.00 0.17 0.00 0.05
24 10.0487 0.00 -0.05 0.00 0.02
25 10.1106 0.00 0.04 0.00 -0.08
26 10.1244 0.00 -0.13 0.00 0.02
27 12.0660 0.00 -0.06 0.00 0.02
28 18.1982 0.00 -0.06 0.00 -0.06
29 18.1983 0.00 -0.10 0.00 0.17
30 18.1984 0.00 0.15 0.00 -0.06
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 46.478 46.478 46.478 ecceobj 0.036 0.036 0.036 incobj 24.007 24.007 24.007 qmin 44.162 44.161 44.162 qmax 48.675 48.686 48.676 amean 46.329 46.329 46.329 amin 45.964 45.963 45.966 amax 46.699 46.701 46.698 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 23.516 23.516 23.516 imax 23.971 23.971 23.970 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 180.8 180.7 180.7 kozaiamp 180.0 179.8 180.0