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: 11UZ411
# Created Mon Apr 28 01:09:20 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 24
# Arc: 6.31y
# First observation: 2011/08/29
# Last observation: 2017/12/20
# Chi-squared of fit: 8.11 DOF: 42 RMS: 0.10
# Min/Max residuals: -0.22 0.21
# Exact a, adot, b, bdot, g, gdot:
1.511006E-05 2.100917E-02 -4.279304E-07 9.749298E-05 2.241996E-02 1.521707E-03
# Covariance matrix:
1.9466E-13 -5.0880E-14 1.3539E-16 -2.0080E-16 1.0019E-13 -4.7238E-13
-5.0880E-14 3.0782E-13 -9.9978E-16 1.8142E-15 1.5054E-13 2.7486E-12
1.3539E-16 -9.9978E-16 8.7248E-14 -2.3893E-14 -4.8208E-16 -9.7007E-15
-2.0080E-16 1.8142E-15 -2.3893E-14 2.2105E-14 9.2373E-16 1.7511E-14
1.0019E-13 1.5054E-13 -4.8208E-16 9.2373E-16 2.0414E-13 1.2161E-12
-4.7238E-13 2.7486E-12 -9.7007E-15 1.7511E-14 1.2161E-12 2.6872E-11
# lat0 lon0 xBary yBary zBary JD0
1.193539 32.643748 0.845658 0.011353 -0.546534 2455802.990676
# Heliocentric elements and errors
Epoch: 2455802.5000 = 2011/08/29
Mean Anomaly: 71.50933 +/- 0.042
Argument of Peri: 358.55236 +/- 0.057
Long of Asc Node: 315.35941 +/- 0.019
Inclination: 1.21377 +/- 0.000
Eccentricity: 0.05545340 +/- 0.0002
Semi-Major Axis: 45.83720569 +/- 0.0036
Time of Perihelion: 2433286.7791 +/- 13.4
Perihelion: 43.29537671 +/- 0.0119
Aphelion: 48.37903467 +/- 0.0120
Period (y) 310.3383 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 38.46929812 +/- 0.0008
Ecliptic Y 23.63838404 +/- 0.0005
Ecliptic Z 0.92907496 +/- 0.0000
Ecliptic XDOT -0.00123082 +/- 0.0000
Ecliptic YDOT 0.00226580 +/- 0.0000
Ecliptic ZDOT 0.00001583 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.16104605 +/- 0.0007
Geocenter to KBO 44.60309562 +/- 0.0009
# Hcoef: 7.79
The following table shows the complete astrometric record for 11UZ411. 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 (11UZ411) followed by the observatory code and reference code for the source of the astrometry.
2011 08 29.48991 02 00 05.666 +13 30 39.34 24.5r 11UZ411 568 C~1C6P 2011 08 29.54186 02 00 05.569 +13 30 38.70 24.5r 11UZ411 568 C~1C6P 2011 08 29.58893 02 00 05.447 +13 30 38.43 24.7r 11UZ411 568 C~1C6P 2011 09 05.52844 01 59 49.191 +13 29 21.57 24.2r 11UZ411 568 C~1C6P 2011 10 24.40763 01 56 44.789 +13 13 27.33 24.2r 11UZ411 568 C~1C6P 2011 10 24.45036 01 56 44.593 +13 13 26.49 24.3r 11UZ411 568 C~1C6P 2011 10 24.49308 01 56 44.407 +13 13 25.48 24.2r 11UZ411 568 C~1C6P 2011 10 28.48438 01 56 26.773 +13 11 49.98 24.3r 11UZ411 568 C~1C6P 2011 10 29.31115 01 56 23.146 +13 11 30.05 23.7r 11UZ411 568 C~1C6P 2011 11 24.29629 01 54 35.922 +13 01 35.50 24.4r 11UZ411 568 C~1C6P 2011 11 30.32546 01 54 14.680 +12 59 34.02 24.1r 11UZ411 568 C~1C6P 2012 01 25.28222 01 53 02.746 +12 51 37.68 11UZ411 568 C~1C6P 2012 01 26.26707 01 53 03.857 +12 51 42.22 24.2r 11UZ411 568 C~1C6P 2012 08 17.56436 02 05 02.480 +13 56 57.49 24.0r 11UZ411 568 C~1C6P 2012 08 24.52210 02 04 52.664 +13 56 17.21 24.6r 11UZ411 568 C~1C6P 2012 10 17.36966 02 01 54.062 +13 41 27.31 24.1r 11UZ411 568 C~1C6P 2012 10 20.46455 02 01 40.450 +13 40 15.92 24.0r 11UZ411 568 C~1C6P 2013 01 14.33106 01 57 31.674 +13 16 40.21 24.1r 11UZ411 568 C~1C6P 2013 02 02.24144 01 57 48.992 +13 17 41.77 24.6r 11UZ411 568 C~1C6P 2013 02 03.24708 01 57 50.793 +13 17 49.86 24.4r 11UZ411 568 C~1C6P 2013 02 06.29444 01 57 56.756 +13 18 17.06 24.8r 11UZ411 568 C~1C6P 2013 02 09.23506 01 58 03.258 +13 18 47.31 24.1r 11UZ411 568 C~1C6P 2017 12 20.14242 02 21 11.131 +15 21 27.74 24.2R 11UZ411 G37 C~2UwX 2017 12 20.21224 02 21 10.945 +15 21 26.61 11UZ411 G37 C~2UwX
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 -0.09 0.00 0.08
2 0.0001 0.00 0.14 0.00 -0.07
3 0.0003 0.00 -0.16 0.00 0.12
4 0.0193 0.00 -0.13 0.00 0.21
5 0.1531 0.00 0.09 0.00 -0.06
6 0.1532 0.00 0.04 0.00 0.11
7 0.1533 0.00 0.13 0.00 0.13
8 0.1643 0.00 -0.06 0.00 -0.07
9 0.1665 0.00 -0.02 0.00 -0.22
10 0.2377 0.00 -0.01 0.00 -0.04
11 0.2542 0.00 -0.05 0.00 -0.14
12 0.4074 0.00 0.12 0.00 -0.22
13 0.4101 0.00 0.02 0.00 -0.14
14 0.9694 0.00 -0.01 0.00 -0.05
15 0.9885 0.00 -0.08 0.00 0.00
16 1.1359 0.00 0.16 0.00 -0.10
17 1.1444 0.00 0.05 0.00 0.04
18 1.3794 0.00 -0.00 0.00 -0.01
19 1.4312 0.00 -0.12 0.00 0.06
20 1.4340 0.00 -0.04 0.00 0.13
21 1.4423 0.00 -0.06 0.00 0.15
22 1.4504 0.00 -0.06 0.00 0.08
23 6.3098 0.00 0.04 0.00 0.05
24 6.3100 0.00 -0.00 0.00 -0.09
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.
11UZ411 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.936 45.936 45.936 ecceobj 0.057 0.057 0.057 incobj 1.214 1.214 1.214 qmin 42.472 42.472 42.460 qmax 48.947 48.940 48.945 amean 45.601 45.601 45.601 amin 45.236 45.234 45.240 amax 45.974 45.975 45.963 emean 0.052 0.052 0.052 emin 0.039 0.039 0.039 emax 0.065 0.065 0.065 imean 2.746 2.746 2.746 imin 2.313 2.312 2.313 imax 3.113 3.113 3.113 excite_mean 0.071 0.071 0.071 fracstop 1.000 1.000 1.000 cjmean 3.115 3.115 3.115 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 176.0 175.9 176.0 kozaiamp 180.0 180.0 179.9