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: 11UY411
# Created Mon Apr 28 01:09:20 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 6.31y
# First observation: 2011/08/29
# Last observation: 2017/12/20
# Chi-squared of fit: 8.46 DOF: 48 RMS: 0.10
# Min/Max residuals: -0.26 0.27
# Exact a, adot, b, bdot, g, gdot:
1.649195E-05 2.268030E-02 4.198083E-07 9.257707E-05 2.345596E-02 -9.211348E-04
# Covariance matrix:
1.7140E-13 -5.6111E-14 -2.9304E-17 -1.3218E-16 8.6371E-14 -4.7513E-13
-5.6111E-14 2.7129E-13 -1.0119E-15 1.4797E-15 1.1591E-13 2.2092E-12
-2.9304E-17 -1.0119E-15 7.6076E-14 -2.1449E-14 -6.6037E-16 -8.6156E-15
-1.3218E-16 1.4797E-15 -2.1449E-14 2.1021E-14 7.6763E-16 1.2926E-14
8.6371E-14 1.1591E-13 -6.6037E-16 7.6763E-16 1.6957E-13 8.3179E-13
-4.7513E-13 2.2092E-12 -8.6156E-15 1.2926E-14 8.3179E-13 1.9817E-11
# lat0 lon0 xBary yBary zBary JD0
1.912577 32.403852 0.843362 0.018329 -0.549882 2455802.990676
# Heliocentric elements and errors
Epoch: 2455802.5000 = 2011/08/29
Mean Anomaly: 299.68510 +/- 0.073
Argument of Peri: 149.07554 +/- 0.096
Long of Asc Node: 309.44268 +/- 0.011
Inclination: 1.90705 +/- 0.000
Eccentricity: 0.06677669 +/- 0.0002
Semi-Major Axis: 44.50955422 +/- 0.0027
Time of Perihelion: 2473974.4028 +/- 23.4
Perihelion: 41.53735368 +/- 0.0082
Aphelion: 47.48175476 +/- 0.0083
Period (y) 296.9532 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 36.89451424 +/- 0.0006
Ecliptic Y 22.41773680 +/- 0.0004
Ecliptic Z 1.42290473 +/- 0.0000
Ecliptic XDOT -0.00151283 +/- 0.0000
Ecliptic YDOT 0.00218273 +/- 0.0000
Ecliptic ZDOT 0.00000727 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.19476977 +/- 0.0006
Geocenter to KBO 42.63314840 +/- 0.0007
# Hcoef: 7.74
The following table shows the complete astrometric record for 11UY411. 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 (11UY411) followed by the observatory code and reference code for the source of the astrometry.
2011 08 29.48991 01 58 08.672 +14 06 10.43 24.2r 11UY411 568 C~1C6P 2011 08 29.54186 01 58 08.564 +14 06 10.11 24.1r 11UY411 568 C~1C6P 2011 08 29.58893 01 58 08.462 +14 06 09.66 24.5r 11UY411 568 C~1C6P 2011 09 05.52844 01 57 51.348 +14 04 54.37 23.9r 11UY411 568 C~1C6P 2011 10 24.40763 01 54 38.202 +13 48 33.17 23.9r 11UY411 568 C~1C6P 2011 10 24.45036 01 54 38.006 +13 48 32.10 23.8r 11UY411 568 C~1C6P 2011 10 24.49308 01 54 37.807 +13 48 31.03 24.1r 11UY411 568 C~1C6P 2011 10 28.30461 01 54 20.280 +13 46 55.58 24.2r 11UY411 568 C~1C6P 2011 10 28.48438 01 54 19.436 +13 46 51.03 24.1r 11UY411 568 C~1C6P 2011 10 30.52869 01 54 10.066 +13 45 59.73 11UY411 568 C~1C6P 2011 10 31.51164 01 54 05.579 +13 45 35.13 23.9r 11UY411 568 C~1C6P 2011 11 24.27924 01 52 24.308 +13 36 00.95 24.3r 11UY411 568 C~1C6P 2011 11 30.32546 01 52 02.304 +13 33 50.65 24.2r 11UY411 568 C~1C6P 2012 01 26.25696 01 50 52.021 +13 25 00.16 24.0r 11UY411 568 C~1C6P 2012 01 27.33441 01 50 53.489 +13 25 05.17 23.8r 11UY411 568 C~1C6P 2012 08 23.55059 02 03 21.381 +14 34 01.06 11UY411 568 C~1C6P 2012 08 23.55926 02 03 21.383 +14 34 01.07 24.4r 11UY411 568 C~1C6P 2012 08 24.58191 02 03 19.601 +14 33 54.38 24.1r 11UY411 568 C~1C6P 2012 10 17.41240 02 00 12.033 +14 18 49.74 23.9r 11UY411 568 C~1C6P 2012 10 20.50922 01 59 57.778 +14 17 34.78 11UY411 568 C~1C6P 2013 01 14.33106 01 55 40.772 +13 52 10.92 24.1r 11UY411 568 C~1C6P 2013 01 14.36729 01 55 40.769 +13 52 10.87 24.2r 11UY411 568 C~1C6P 2013 02 02.24616 01 56 00.287 +13 53 02.15 23.9r 11UY411 568 C~1C6P 2013 02 03.25183 01 56 02.242 +13 53 09.87 24.1r 11UY411 568 C~1C6P 2013 02 06.29444 01 56 08.712 +13 53 36.42 24.2r 11UY411 568 C~1C6P 2017 12 20.15259 02 21 37.876 +16 08 52.72 23.0R 11UY411 G37 C~2UwX 2017 12 20.22960 02 21 37.655 +16 08 51.58 11UY411 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 -0.21 0.00 -0.16
2 0.0001 0.00 -0.06 0.00 0.00
3 0.0003 0.00 0.03 0.00 -0.01
4 0.0193 0.00 0.18 0.00 0.12
5 0.1531 0.00 -0.13 0.00 -0.04
6 0.1532 0.00 -0.06 0.00 -0.05
7 0.1533 0.00 -0.04 0.00 -0.05
8 0.1638 0.00 0.10 0.00 -0.04
9 0.1643 0.00 0.05 0.00 -0.08
10 0.1699 0.00 0.19 0.00 -0.00
11 0.1725 0.00 0.27 0.00 0.10
12 0.2376 0.00 -0.08 0.00 -0.03
13 0.2542 0.00 0.05 0.00 -0.04
14 0.4100 0.00 -0.22 0.00 -0.05
15 0.4130 0.00 -0.09 0.00 0.01
16 0.9858 0.00 -0.26 0.00 0.06
17 0.9858 0.00 -0.00 0.00 0.12
18 0.9886 0.00 -0.04 0.00 0.12
19 1.1360 0.00 0.07 0.00 0.13
20 1.1445 0.00 -0.00 0.00 -0.04
21 1.3794 0.00 0.05 0.00 -0.02
22 1.3795 0.00 -0.05 0.00 0.01
23 1.4312 0.00 -0.01 0.00 -0.03
24 1.4340 0.00 -0.01 0.00 -0.07
25 1.4423 0.00 0.11 0.00 -0.02
26 6.3098 0.00 0.07 0.00 -0.05
27 6.3100 0.00 -0.04 0.00 0.02
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.
11UY411 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.603 44.603 44.603 ecceobj 0.067 0.067 0.067 incobj 1.907 1.907 1.907 qmin 40.361 40.360 40.362 qmax 48.446 48.447 48.448 amean 44.275 44.275 44.275 amin 43.923 43.923 43.924 amax 44.657 44.657 44.657 emean 0.069 0.069 0.069 emin 0.054 0.054 0.054 emax 0.085 0.085 0.085 imean 3.379 3.379 3.379 imin 2.659 2.659 2.659 imax 3.993 3.993 3.992 excite_mean 0.091 0.091 0.091 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 180.6 180.6 180.7 kozaiamp 180.0 179.9 180.0