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: 06QB181 # Created Wed Dec 25 02:08:49 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 11.17y # First observation: 2006/08/21 # Last observation: 2017/10/22 # Chi-squared of fit: 14.39 DOF: 40 RMS: 0.14 # Min/Max residuals: -0.32 0.32 # Exact a, adot, b, bdot, g, gdot: 1.354603E-05 2.051732E-02 6.715795E-08 3.650560E-04 2.242247E-02 6.260557E-04 # Covariance matrix: 3.0965E-13 -1.6711E-14 1.1135E-16 -2.3888E-17 1.4737E-13 2.9901E-15 -1.6711E-14 6.5784E-14 -5.8467E-16 1.1331E-15 8.7727E-14 2.9573E-13 1.1135E-16 -5.8467E-16 2.3156E-13 -2.3898E-14 -5.0464E-16 -2.8423E-15 -2.3888E-17 1.1331E-15 -2.3898E-14 3.3992E-15 1.3190E-15 5.4315E-15 1.4737E-13 8.7727E-14 -5.0464E-16 1.3190E-15 3.6720E-13 3.6062E-13 2.9901E-15 2.9573E-13 -2.8423E-15 5.4315E-15 3.6062E-13 1.4138E-12 # lat0 lon0 xBary yBary zBary JD0 -1.992930 2.319517 0.567924 -0.029027 -0.837659 2453968.718844 # Heliocentric elements and errors Epoch: 2453968.5000 = 2006/08/21 Mean Anomaly: 151.99140 +/- 0.073 Argument of Peri: 142.78298 +/- 0.069 Long of Asc Node: 64.56797 +/- 0.004 Inclination: 2.19584 +/- 0.000 Eccentricity: 0.04363182 +/- 0.0001 Semi-Major Axis: 43.73414282 +/- 0.0039 Time of Perihelion: 2409367.3703 +/- 22.2 Perihelion: 41.82594250 +/- 0.0048 Aphelion: 45.64234314 +/- 0.0051 Period (y) 289.2272 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 45.39203764 +/- 0.0012 Ecliptic Y 1.26743539 +/- 0.0000 Ecliptic Z -1.55095765 +/- 0.0000 Ecliptic XDOT -0.00001898 +/- 0.0000 Ecliptic YDOT 0.00250142 +/- 0.0000 Ecliptic ZDOT 0.00004185 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.43619472 +/- 0.0012 Geocenter to KBO 44.59811642 +/- 0.0012 # Hcoef: 7.07
The following table shows the complete astrometric record for 06QB181. 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 (06QB181) followed by the observatory code and reference code for the source of the astrometry.
2006 08 21.21809 00 11 40.91 -00 54 22.7 22.5R 06QB181 807 Cs5502 2006 08 21.29189 00 11 40.64 -00 54 24.6 06QB181 807 Cs5502 2006 08 22.19830 00 11 37.68 -00 54 45.1 06QB181 807 Cs5502 2006 10 19.23950 00 07 49.15 -01 19 28.4 23.4R 06QB181 695 Ct0530 2006 10 19.34685 00 07 48.77 -01 19 30.9 06QB181 695 Ct0530 2006 10 20.29702 00 07 45.20 -01 19 52.7 06QB181 695 Ct0530 2013 10 13.12206 00 38 13.782 +02 07 27.42 23.3i 06QB181 W84 C~52HU 2013 11 08.17119 00 36 35.824 +01 57 36.97 24.5g 06QB181 W84 C~52HU 2013 11 08.17259 00 36 35.811 +01 57 37.13 24.0r 06QB181 W84 C~52HU 2013 11 08.17397 00 36 35.798 +01 57 36.88 23.3i 06QB181 W84 C~52HU 2014 08 18.31436 00 45 58.984 +02 59 02.38 23.2i 06QB181 W84 C~52HU 2014 11 13.07078 00 40 36.730 +02 25 06.91 23.5r 06QB181 W84 C~52HU 2016 09 09.28468 00 53 19.631 +03 48 32.95 23.6i 06QB181 W84 C~52HU 2016 09 09.32324 00 53 19.475 +03 48 31.73 22.8z 06QB181 W84 C~52HU 2016 11 08.11801 00 49 21.983 +03 24 03.74 23.4i 06QB181 W84 C~52HU 2016 11 18.08682 00 48 50.479 +03 21 04.09 24.0r 06QB181 W84 C~52HU 2016 11 18.08820 00 48 50.468 +03 21 04.44 24.6g 06QB181 W84 C~52HU 2016 11 18.09093 00 48 50.473 +03 21 04.00 23.1i 06QB181 W84 C~52HU 2016 11 25.07175 00 48 31.879 +03 19 22.06 24.6g 06QB181 W84 C~52HU 2017 09 27.23225 00 56 27.052 +04 09 51.75 23.4r 06QB181 W84 C~52HU 2017 09 27.23363 00 56 27.046 +04 09 51.46 23.6i 06QB181 W84 C~52HU 2017 10 20.16907 00 54 51.320 +04 00 00.76 23.2z 06QB181 W84 C~52HU 2017 10 22.16624 00 54 43.160 +03 59 11.60 23.4z 06QB181 W84 C~52HU
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 0.11
2 0.0002 0.00 -0.20 0.00 -0.12
3 0.0027 0.00 -0.01 0.00 0.01
4 0.1616 0.00 -0.17 0.00 0.14
5 0.1619 0.00 0.28 0.00 0.09
6 0.1645 0.00 -0.09 0.00 -0.10
7 7.1455 0.00 0.11 0.00 -0.05
8 7.2168 0.00 0.14 0.00 -0.10
9 7.2169 0.00 0.01 0.00 0.08
10 7.2169 0.00 -0.12 0.00 -0.14
11 7.9921 0.00 0.01 0.00 0.06
12 8.2296 0.00 0.02 0.00 -0.19
13 10.0536 0.00 0.19 0.00 -0.02
14 10.0537 0.00 -0.00 0.00 -0.32
15 10.2174 0.00 0.01 0.00 0.02
16 10.2447 0.00 -0.13 0.00 -0.07
17 10.2447 0.00 -0.23 0.00 0.30
18 10.2447 0.00 -0.04 0.00 -0.10
19 10.2638 0.00 0.32 0.00 0.06
20 11.1020 0.00 -0.06 0.00 0.25
21 11.1020 0.00 -0.06 0.00 -0.00
22 11.1648 0.00 0.04 0.00 0.04
23 11.1703 0.00 -0.05 0.00 0.11
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.
06QB181 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.134 44.134 44.134 ecceobj 0.034 0.034 0.034 incobj 2.192 2.192 2.192 qmin 41.476 41.478 41.475 qmax 46.554 46.542 46.561 amean 43.904 43.904 43.904 amin 43.566 43.565 43.569 amax 44.255 44.258 44.257 emean 0.037 0.037 0.037 emin 0.020 0.020 0.020 emax 0.052 0.052 0.052 imean 1.044 1.044 1.044 imin 0.218 0.218 0.218 imax 1.577 1.577 1.576 excite_mean 0.041 0.041 0.041 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.098 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 182.1 182.2 182.2 kozaiamp 180.0 180.0 180.0