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: 11UT412
# Created Sun Apr 27 01:09:21 2025
# Orbit generated from Bernstein formalism
# Fitting 15 observations of 15
# Arc: 1.44y
# First observation: 2011/08/30
# Last observation: 2013/02/06
Preliminary a, adot, b, bdot, g, gdot:
-0.000158 0.019471 -0.000015 -0.006032 0.021826 0.000000
# Chi-squared of fit: 8.26 DOF: 24 RMS: 0.13
# Min/Max residuals: -0.23 0.27
# Exact a, adot, b, bdot, g, gdot:
1.361000E-05 1.938127E-02 -4.397588E-06 -6.130611E-03 2.194620E-02 4.035276E-03
# Covariance matrix:
4.5370E-13 5.1943E-14 2.1098E-14 -2.1426E-13 5.2595E-13 2.7410E-11
5.1943E-14 8.6980E-13 3.4530E-14 -3.1522E-13 5.5162E-13 3.9403E-11
2.1098E-14 3.4530E-14 1.8334E-13 -2.3650E-13 4.7964E-14 3.8757E-12
-2.1426E-13 -3.1522E-13 -2.3650E-13 7.9596E-13 -4.6915E-13 -3.5110E-11
5.2595E-13 5.5162E-13 4.7964E-14 -4.6915E-13 1.0392E-12 5.9551E-11
2.7410E-11 3.9403E-11 3.8757E-12 -3.5110E-11 5.9551E-11 4.3808E-09
# lat0 lon0 xBary yBary zBary JD0
3.897576 33.278512 0.842016 0.037473 -0.550477 2455804.012666
# Heliocentric elements and errors
Epoch: 2455800.5000 = 2011/08/27
Mean Anomaly: 65.06129 +/- 0.222
Argument of Peri: 81.60231 +/- 0.065
Long of Asc Node: 224.34291 +/- 0.001
Inclination: 17.77947 +/- 0.002
Eccentricity: 0.18337524 +/- 0.0033
Semi-Major Axis: 48.38968036 +/- 0.0613
Time of Perihelion: 2433580.3122 +/- 63.0
Perihelion: 39.51621112 +/- 0.1660
Aphelion: 57.26314960 +/- 0.1741
Period (y) 336.6180 +/- 0.64
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 38.93231871 +/- 0.0018
Ecliptic Y 24.54469895 +/- 0.0011
Ecliptic Z 3.09708254 +/- 0.0001
Ecliptic XDOT -0.00086652 +/- 0.0000
Ecliptic YDOT 0.00233088 +/- 0.0000
Ecliptic ZDOT -0.00072876 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.12764472 +/- 0.0016
Geocenter to KBO 45.56597840 +/- 0.0021
# Hcoef: 7.80
The following table shows the complete astrometric record for 11UT412. 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 (11UT412) followed by the observatory code and reference code for the source of the astrometry.
2011 08 30.51190 01 58 41.503 +16 16 03.23 24.2r 11UT412 568 C~1CKy 2011 08 30.60488 01 58 41.284 +16 16 02.24 24.4r 11UT412 568 C~1CKy 2011 09 05.60600 01 58 27.215 +16 14 52.10 24.4r 11UT412 568 C~1CKy 2011 10 25.40962 01 55 21.938 +15 57 11.68 24.2r 11UT412 568 C~1CKy 2011 10 26.31377 01 55 18.022 +15 56 47.30 24.4r 11UT412 568 C~1CKy 2011 10 26.35693 01 55 17.824 +15 56 46.18 24.1r 11UT412 568 C~1CKy 2011 10 26.41449 01 55 17.567 +15 56 44.46 11UT412 568 C~1CKy 2011 10 31.40568 01 54 56.062 +15 54 28.41 11UT412 568 C~1CKy 2011 11 24.29202 01 53 20.326 +15 43 41.76 24.3r 11UT412 568 C~1CKy 2011 11 30.33399 01 52 59.627 +15 41 08.35 24.4r 11UT412 568 C~1CKy 2012 01 27.24139 01 51 54.785 +15 27 06.49 24.6r 11UT412 568 C~1CKy 2012 08 22.45359 02 03 44.858 +16 20 14.63 24.5r 11UT412 568 C~1CKy 2012 08 23.52913 02 03 43.211 +16 20 07.06 11UT412 568 C~1CKy 2012 08 24.56487 02 03 41.521 +16 19 59.15 24.8r 11UT412 568 C~1CKy 2013 02 06.29902 01 56 59.022 +15 31 03.57 11UT412 568 C~1CKy
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 0.07 0.00 -0.00
2 0.0003 -3.30 -0.12 0.16 0.04
3 0.0167 -217.65 -0.16 4.58 0.12
4 0.1530 -3090.18 0.21 -58.98 -0.10
5 0.1555 -3151.64 0.11 -62.04 0.00
6 0.1556 -3154.70 0.01 -62.09 0.08
7 0.1558 -3158.78 -0.09 -62.40 -0.05
8 0.1695 -3497.07 0.23 -81.11 -0.16
9 0.2349 -5018.52 -0.04 -200.78 0.26
10 0.2514 -5352.52 -0.23 -238.95 -0.03
11 0.4099 -6527.52 0.02 -695.59 -0.02
12 0.9800 4188.59 0.03 -1264.33 -0.21
13 0.9829 4163.71 0.13 -1263.37 -0.13
14 0.9858 4138.13 -0.12 -1262.52 -0.06
15 1.4395 -2324.36 -0.03 -2018.10 0.27
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.
11UT412 quality flag:1 Type: SCATNEAR SCATEXTD 2:1E axisobj 48.494 48.678 48.320 ecceobj 0.185 0.194 0.175 incobj 17.766 17.765 17.766 qmin 38.521 38.408 37.867 qmax 58.067 58.607 58.375 amean 48.114 48.296 47.796 amin 47.638 47.849 47.227 amax 48.620 48.809 48.436 emean 0.176 0.186 0.175 emin 0.157 0.170 0.135 emax 0.195 0.202 0.206 imean 19.006 18.944 18.577 imin 18.487 18.491 17.881 imax 19.444 19.337 19.459 excite_mean 0.370 0.374 0.364 fracstop 1.000 1.000 1.000 cjmean 2.978 2.977 2.981 libcent 0 -180.0 -180.0 178.8 libamp 0 -180.0 -180.0 157.8 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 182.9 176.8 163.1 kozaiamp 180.0 180.0 180.0