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: 11UN411
# Created Fri Nov 22 02:09:14 2024
# Orbit generated from Bernstein formalism
# Fitting 23 observations of 23
# Arc: 1.44y
# First observation: 2011/08/30
# Last observation: 2013/02/06
Preliminary a, adot, b, bdot, g, gdot:
-0.000337 0.036571 0.000011 0.000816 0.030183 0.000000
# Chi-squared of fit: 10.71 DOF: 40 RMS: 0.12
# Min/Max residuals: -0.34 0.24
# Exact a, adot, b, bdot, g, gdot:
1.917246E-05 3.633715E-02 4.531196E-07 8.202756E-04 3.041434E-02 1.347816E-03
# Covariance matrix:
6.1214E-13 6.9552E-13 -1.5903E-14 4.7062E-14 8.8623E-13 3.6697E-11
6.9552E-13 2.6460E-12 -3.5226E-14 1.1706E-13 1.8988E-12 9.6601E-11
-1.5903E-14 -3.5226E-14 1.4935E-13 -1.6248E-13 -3.2420E-14 -1.4803E-12
4.7062E-14 1.1706E-13 -1.6248E-13 3.0840E-13 1.0034E-13 4.8653E-12
8.8623E-13 1.8988E-12 -3.2420E-14 1.0034E-13 1.7846E-12 8.0065E-11
3.6697E-11 9.6601E-11 -1.4803E-12 4.8653E-12 8.0065E-11 3.9949E-09
# lat0 lon0 xBary yBary zBary JD0
2.981372 32.856893 0.837777 0.029001 -0.557402 2455804.028486
# Heliocentric elements and errors
Epoch: 2455800.5000 = 2011/08/27
Mean Anomaly: 2.41391 +/- 0.348
Argument of Peri: 61.16725 +/- 0.556
Long of Asc Node: 326.42637 +/- 0.014
Inclination: 3.23300 +/- 0.000
Eccentricity: 0.21673121 +/- 0.0002
Semi-Major Axis: 42.68921414 +/- 0.0059
Time of Perihelion: 2455117.3844 +/- 98.5
Perihelion: 33.43712910 +/- 0.0101
Aphelion: 51.94129918 +/- 0.0114
Period (y) 278.9237 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 28.50885435 +/- 0.0012
Ecliptic Y 17.41454345 +/- 0.0008
Ecliptic Z 1.71012709 +/- 0.0001
Ecliptic XDOT -0.00167927 +/- 0.0000
Ecliptic YDOT 0.00281679 +/- 0.0000
Ecliptic ZDOT 0.00008011 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.45064476 +/- 0.0011
Geocenter to KBO 32.87923109 +/- 0.0014
# Hcoef: 9.20
The following table shows the complete astrometric record for 11UN411. 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 (11UN411) followed by the observatory code and reference code for the source of the astrometry.
2011 08 30.52772 01 58 22.189 +15 15 44.29 24.5r 11UN411 568 C~1C6O 2011 08 30.57409 01 58 22.052 +15 15 43.79 24.0r 11UN411 568 C~1C6O 2011 10 25.32517 01 53 58.742 +14 55 05.26 11UN411 568 C~1C6O 2011 10 25.36849 01 53 58.472 +14 55 04.02 24.3r 11UN411 568 C~1C6O 2011 10 25.42298 01 53 58.156 +14 55 02.25 24.1r 11UN411 568 C~1C6O 2011 10 25.48274 01 53 57.795 +14 55 00.60 24.2r 11UN411 568 C~1C6O 2011 10 26.27399 01 53 53.261 +14 54 36.24 24.5r 11UN411 568 C~1C6O 2011 10 26.32667 01 53 52.953 +14 54 34.38 24.2r 11UN411 568 C~1C6O 2011 10 26.36985 01 53 52.701 +14 54 32.94 24.0r 11UN411 568 C~1C6O 2011 10 31.54242 01 53 22.961 +14 51 52.29 24.5r 11UN411 568 C~1C6O 2011 11 24.28350 01 51 17.109 +14 39 52.10 11UN411 568 C~1C6O 2011 11 30.32972 01 50 50.039 +14 37 06.52 11UN411 568 C~1C6O 2012 01 26.26197 01 49 34.599 +14 25 41.63 24.3r 11UN411 568 C~1C6O 2012 01 27.33942 01 49 36.783 +14 25 47.86 24.5r 11UN411 568 C~1C6O 2012 08 17.55584 02 06 49.153 +16 01 57.30 24.8r 11UN411 568 C~1C6O 2012 08 22.61130 02 06 41.563 +16 01 47.94 24.7r 11UN411 568 C~1C6O 2012 08 23.52913 02 06 39.919 +16 01 44.50 24.9r 11UN411 568 C~1C6O 2012 08 24.48353 02 06 38.091 +16 01 40.63 11UN411 568 C~1C6O 2012 08 24.56487 02 06 37.913 +16 01 40.23 11UN411 568 C~1C6O 2012 10 21.32322 02 02 26.546 +15 43 19.83 24.3r 11UN411 568 C~1C6O 2012 10 21.34894 02 02 26.390 +15 43 19.02 24.4r 11UN411 568 C~1C6O 2012 10 21.37460 02 02 26.233 +15 43 18.27 24.4r 11UN411 568 C~1C6O 2013 02 06.29902 01 57 54.730 +15 12 56.63 24.2r 11UN411 568 C~1C6O
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 -0.06 0.00 -0.01
2 0.0001 -2.03 -0.16 0.22 -0.05
3 0.1528 -4008.50 0.24 169.23 -0.11
4 0.1529 -4012.61 0.05 169.45 0.05
5 0.1530 -4017.52 0.08 169.40 -0.06
6 0.1532 -4023.00 0.02 169.69 0.17
7 0.1554 -4093.11 0.17 169.95 0.18
8 0.1555 -4097.95 0.09 169.78 -0.05
9 0.1556 -4101.88 0.07 169.71 -0.16
10 0.1698 -4562.16 -0.03 170.81 -0.00
11 0.2348 -6525.75 -0.03 140.86 -0.01
12 0.2513 -6952.24 0.09 125.10 0.07
13 0.4072 -8221.17 -0.22 -126.56 -0.09
14 0.4102 -8189.25 -0.34 -132.02 -0.09
15 0.9665 7833.09 -0.07 103.77 -0.01
16 0.9804 7726.77 -0.23 131.86 0.14
17 0.9829 7703.26 0.03 136.61 -0.03
18 0.9855 7677.11 0.12 141.86 0.12
19 0.9857 7674.55 -0.02 142.35 0.12
20 1.1439 3886.62 0.08 338.88 0.02
21 1.1439 3884.22 -0.00 338.89 -0.01
22 1.1440 3881.84 -0.08 338.96 0.02
23 1.4395 -430.88 0.19 -19.52 -0.23
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.
11UN411 quality flag:3 Type: 5:3EE 5:3EE 5:3EE axisobj 42.782 42.817 42.750 ecceobj 0.218 0.220 0.217 incobj 3.232 3.232 3.232 qmin 32.953 32.973 32.987 qmax 52.137 52.367 52.165 amean 42.327 42.327 42.327 amin 41.917 41.889 41.932 amax 42.784 42.853 42.782 emean 0.204 0.204 0.204 emin 0.190 0.188 0.191 emax 0.220 0.223 0.219 imean 4.679 4.792 4.643 imin 4.225 4.219 4.257 imax 5.261 5.525 5.163 excite_mean 0.220 0.221 0.220 fracstop 1.000 1.000 1.000 cjmean 3.024 3.024 3.025 libcent 0 179.0 180.5 180.1 libamp 0 52.8 72.3 32.6 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 158.4 180.1 158.5 kozaiamp 180.0 180.0 180.0