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: 11UK412
# Created Thu Apr 25 01:13:51 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 35 observations of 35
# Arc: 11.06y
# First observation: 2008/10/02
# Last observation: 2019/10/26
# Chi-squared of fit: 15.43 DOF: 64 RMS: 0.12
# Min/Max residuals: -0.29 0.25
# Exact a, adot, b, bdot, g, gdot:
1.584335E-05 2.693838E-02 -6.014378E-06 -1.287779E-02 2.769697E-02 6.966405E-04
# Covariance matrix:
3.9603E-13 -1.4731E-13 -1.2765E-13 6.0350E-14 -2.0926E-14 -3.6896E-13
-1.4731E-13 6.6320E-14 6.2281E-14 -2.9256E-14 2.7004E-14 1.7878E-13
-1.2765E-13 6.2281E-14 1.9980E-13 -5.4996E-14 2.8684E-14 1.8608E-13
6.0350E-14 -2.9256E-14 -5.4996E-14 2.0811E-14 -1.2020E-14 -8.7496E-14
-2.0926E-14 2.7004E-14 2.8684E-14 -1.2020E-14 1.4218E-13 7.2770E-14
-3.6896E-13 1.7878E-13 1.8608E-13 -8.7496E-14 7.2770E-14 5.3471E-13
# lat0 lon0 xBary yBary zBary JD0
7.145836 25.074810 0.264201 0.120011 -0.956995 2454741.926832
# Heliocentric elements and errors
Epoch: 2454742.5000 = 2008/10/03
Mean Anomaly: 11.30085 +/- 0.013
Argument of Peri: 150.49756 +/- 0.015
Long of Asc Node: 218.90359 +/- 0.000
Inclination: 26.38279 +/- 0.000
Eccentricity: 0.09387001 +/- 0.0000
Semi-Major Axis: 40.80257706 +/- 0.0024
Time of Perihelion: 2451754.1033 +/- 3.3
Perihelion: 36.97243873 +/- 0.0029
Aphelion: 44.63271538 +/- 0.0032
Period (y) 260.6391 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 33.43525034 +/- 0.0004
Ecliptic Y 15.34774160 +/- 0.0002
Ecliptic Z 4.49108711 +/- 0.0001
Ecliptic XDOT -0.00091714 +/- 0.0000
Ecliptic YDOT 0.00251012 +/- 0.0000
Ecliptic ZDOT -0.00125464 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.06262372 +/- 0.0004
Geocenter to KBO 36.10504822 +/- 0.0005
# Hcoef: 7.84
The following table shows the complete astrometric record for 11UK412. 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 (11UK412) followed by the observatory code and reference code for the source of the astrometry.
2008 10 02.426078 01 22 04.17 +16 20 37.5 11UK412 645 C~1Q4E 2008 10 02.426908 01 22 04.16 +16 20 37.5 11UK412 645 C~1Q4E 2008 10 02.429395 01 22 04.15 +16 20 37.4 11UK412 645 C~1Q4E 2011 08 30.49881 01 45 35.764 +16 11 55.46 23.5r 11UK412 568 C~1C6Q 2011 08 30.54538 01 45 35.627 +16 11 54.51 23.6r 11UK412 568 C~1C6Q 2011 08 30.59180 01 45 35.495 +16 11 53.81 23.6r 11UK412 568 C~1C6Q 2011 10 25.33804 01 41 28.461 +15 45 06.21 23.2r 11UK412 568 C~1C6Q 2011 10 25.38684 01 41 28.202 +15 45 04.42 23.5r 11UK412 568 C~1C6Q 2011 10 25.43648 01 41 27.934 +15 45 02.61 23.7r 11UK412 568 C~1C6Q 2011 10 25.44205 01 41 27.902 +15 45 02.32 23.4r 11UK412 568 C~1C6Q 2011 10 25.44723 01 41 27.876 +15 45 02.16 11UK412 568 C~1C6Q 2011 10 25.45234 01 41 27.846 +15 45 01.93 23.4r 11UK412 568 C~1C6Q 2011 10 25.45781 01 41 27.822 +15 45 01.82 23.4r 11UK412 568 C~1C6Q 2011 10 26.28698 01 41 23.542 +15 44 30.82 23.4r 11UK412 568 C~1C6Q 2011 10 26.33962 01 41 23.266 +15 44 28.82 23.5r 11UK412 568 C~1C6Q 2011 10 26.38266 01 41 23.026 +15 44 27.26 23.4r 11UK412 568 C~1C6Q 2011 10 26.39884 01 41 22.944 +15 44 26.68 23.3r 11UK412 568 C~1C6Q 2011 10 26.40555 01 41 22.906 +15 44 26.29 23.5r 11UK412 568 C~1C6Q 2011 11 26.45630 01 38 57.133 +15 25 11.56 23.7r 11UK412 568 C~1C6Q 2012 01 25.29229 01 37 48.504 +15 03 35.37 23.7r 11UK412 568 C~1C6Q 2012 01 26.27710 01 37 50.508 +15 03 30.97 23.9r 11UK412 568 C~1C6Q 2012 01 27.21101 01 37 52.512 +15 03 27.61 23.3r 11UK412 568 C~1C6Q 2012 01 27.26158 01 37 52.611 +15 03 27.25 23.6r 11UK412 568 C~1C6Q 2012 02 24.21899 01 39 32.021 +15 05 48.37 23.2r 11UK412 568 C~1C6Q 2012 08 17.58141 01 53 00.818 +16 05 05.91 23.8r 11UK412 568 C~1C6Q 2012 08 17.59430 01 53 00.813 +16 05 05.74 23.7r 11UK412 568 C~1C6Q 2012 08 17.60362 01 53 00.780 +16 05 05.68 23.7r 11UK412 568 C~1C6Q 2012 08 22.44017 01 52 52.426 +16 04 15.17 23.4r 11UK412 568 C~1C6Q 2012 08 24.53923 01 52 48.096 +16 03 49.14 23.5r 11UK412 568 C~1C6Q 2012 10 17.38671 01 49 09.980 +15 40 31.56 23.4r 11UK412 568 C~1C6Q 2012 10 20.48174 01 48 53.829 +15 38 40.49 23.4r 11UK412 568 C~1C6Q 2013 02 09.23077 01 45 19.568 +14 55 23.23 23.3r 11UK412 568 C~1C6Q 2019 10 26.387730 02 37 03.38 +14 10 18.9 23.2G 11UK412 705 C~3chz 2019 10 26.417970 02 37 03.21 +14 10 18.0 22.9G 11UK412 705 C~3chz 2019 10 26.465630 02 37 02.99 +14 10 16.3 23.4G 11UK412 705 C~3chz
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 -0.29
2 0.0000 0.00 -0.07 0.00 -0.26
3 0.0000 0.00 -0.03 0.00 -0.28
4 2.9078 0.00 0.04 0.00 0.22
5 2.9079 0.00 -0.01 0.00 0.01
6 2.9081 0.00 0.02 0.00 0.06
7 3.0607 0.00 0.06 0.00 -0.03
8 3.0608 0.00 0.05 0.00 -0.01
9 3.0609 0.00 -0.03 0.00 0.04
10 3.0610 0.00 -0.07 0.00 -0.04
11 3.0610 0.00 -0.05 0.00 -0.01
12 3.0610 0.00 -0.09 0.00 -0.04
13 3.0610 0.00 -0.02 0.00 0.05
14 3.0633 0.00 0.12 0.00 0.11
15 3.0634 0.00 0.14 0.00 0.07
16 3.0635 0.00 -0.05 0.00 0.12
17 3.0636 0.00 -0.00 0.00 0.15
18 3.0636 0.00 -0.04 0.00 0.01
19 3.1486 0.00 0.07 0.00 -0.05
20 3.3124 0.00 -0.17 0.00 0.10
21 3.3151 0.00 -0.06 0.00 0.01
22 3.3177 0.00 0.12 0.00 0.17
23 3.3178 0.00 0.02 0.00 -0.01
24 3.3944 0.00 -0.10 0.00 0.22
25 3.8745 0.00 0.02 0.00 -0.04
26 3.8745 0.00 0.25 0.00 -0.10
27 3.8745 0.00 -0.02 0.00 -0.07
28 3.8878 0.00 0.01 0.00 -0.13
29 3.8935 0.00 -0.02 0.00 -0.14
30 4.0410 0.00 -0.05 0.00 0.21
31 4.0494 0.00 -0.14 0.00 0.19
32 4.3554 0.00 -0.07 0.00 0.02
33 11.0636 0.00 -0.07 0.00 -0.13
34 11.0636 0.00 -0.22 0.00 -0.04
35 11.0638 0.00 0.25 0.00 -0.17
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.
11UK412 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.067 41.067 41.067 ecceobj 0.099 0.099 0.099 incobj 26.294 26.294 26.294 qmin 36.215 36.228 36.205 qmax 45.538 45.532 45.578 amean 40.794 40.794 40.794 amin 40.486 40.483 40.482 amax 41.133 41.132 41.133 emean 0.095 0.095 0.095 emin 0.081 0.081 0.081 emax 0.108 0.108 0.109 imean 27.246 27.246 27.246 imin 26.813 26.813 26.813 imax 27.656 27.658 27.654 excite_mean 0.468 0.468 0.468 fracstop 1.000 1.000 1.000 cjmean 2.798 2.798 2.798 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 191.4 191.4 191.4 kozaiamp 180.0 180.0 180.0