Orbit Fit and Astrometric record for 11UU411

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: 11UU411   
# Created Fri Mar 29 01:14:13 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     26 observations of     26
# Arc:   8.16y
# First observation: 2011/08/29
#  Last observation: 2019/10/26
# Chi-squared of fit:    12.78 DOF:     46 RMS:  0.12
# Min/Max residuals:    -0.31    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.499242E-05  2.250179E-02 -4.189177E-07  5.362304E-04  2.338890E-02 -1.354561E-04
# Covariance matrix:
  1.9949E-13 -7.4781E-14  7.2160E-16 -1.7490E-15  1.0378E-13 -3.5440E-13
 -7.4781E-14  2.6721E-13 -3.4045E-15  7.0192E-15  8.3241E-14  1.4930E-12
  7.2160E-16 -3.4045E-15  7.3261E-14 -1.4619E-14 -1.2038E-15 -1.9944E-14
 -1.7490E-15  7.0192E-15 -1.4619E-14  1.2547E-14  2.1941E-15  4.1123E-14
  1.0378E-13  8.3241E-14 -1.2038E-15  2.1941E-15  1.6324E-13  4.8612E-13
 -3.5440E-13  1.4930E-12 -1.9944E-14  4.1123E-14  4.8612E-13  8.7468E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.988978   33.316479    0.852058    0.009228   -0.536544  2455802.986416
# Heliocentric elements and errors
Epoch:              2455802.5000  =  2011/08/29
Mean Anomaly:          310.51252 +/-     0.177
Argument of Peri:       87.66630 +/-     0.194
Long of Asc Node:      356.96419 +/-     0.006
Inclination:             1.69266 +/-     0.000
Eccentricity:         0.03291726 +/-    0.0001
Semi-Major Axis:     44.22077490 +/-    0.0030
Time of Perihelion: 2470567.4108 +/-      53.5
Perihelion:          42.76514802 +/-    0.0050
Aphelion:            45.67640178 +/-    0.0051
Period (y)              294.0680 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.64291963 +/-    0.0006
Ecliptic Y           23.06438832 +/-    0.0004
Ecliptic Z            0.73796796 +/-    0.0000
Ecliptic XDOT        -0.00146407 +/-    0.0000
Ecliptic YDOT         0.00219721 +/-    0.0000
Ecliptic ZDOT         0.00006255 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.30375970 +/-    0.0006
Geocenter to KBO     42.75534702 +/-    0.0007
# Hcoef:  7.92

The following table shows the complete astrometric record for 11UU411. 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 (11UU411) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.48565  02 02 58.946  +13 32 58.68  24.0r 11UU411   568  C~1C6O      
2011 08  29.53760  02 02 58.836  +13 32 57.90  24.1r 11UU411   568  C~1C6O      
2011 08  29.58466  02 02 58.720  +13 32 57.68  24.5r 11UU411   568  C~1C6O      
2011 10  24.40337  01 59 31.648  +13 15 30.95  24.2r 11UU411   568  C~1C6O      
2011 10  24.44610  01 59 31.449  +13 15 29.87  24.3r 11UU411   568  C~1C6O      
2011 10  24.48881  01 59 31.258  +13 15 28.91  24.3r 11UU411   568  C~1C6O      
2011 10  26.42314  01 59 22.359  +13 14 41.57  24.0r 11UU411   568  C~1C6O      
2011 10  28.48012  01 59 12.889  +13 13 51.44  24.3r 11UU411   568  C~1C6O      
2011 10  30.52443  01 59 03.491  +13 13 01.84  23.9r 11UU411   568  C~1C6O      
2011 10  31.50734  01 58 58.998  +13 12 37.55  24.1r 11UU411   568  C~1C6O      
2011 11  24.29629  01 57 16.835  +13 03 23.21  24.0r 11UU411   568  C~1C6O      
2011 11  30.34253  01 56 54.431  +13 01 18.83  24.4r 11UU411   568  C~1C6O      
2011 11  30.35120  01 56 54.412  +13 01 18.79  23.7r 11UU411   568  C~1C6O      
2012 01  25.28222  01 55 36.913  +12 53 21.30  24.4r 11UU411   568  C~1C6O      
2012 01  27.32416  01 55 39.337  +12 53 32.12  24.3r 11UU411   568  C~1C6O      
2012 08  17.56010  02 08 14.243  +14 02 14.70  24.5r 11UU411   568  C~1C6O      
2012 08  22.61568  02 08 07.641  +14 01 48.84  24.4r 11UU411   568  C~1C6O      
2012 08  24.51776  02 08 04.615  +14 01 36.15  23.8r 11UU411   568  C~1C6O      
2012 10  17.36532  02 05 00.800  +13 46 37.98  24.0r 11UU411   568  C~1C6O      
2012 10  20.46016  02 04 46.617  +13 45 24.99  23.9r 11UU411   568  C~1C6O      
2013 01  14.35870  02 00 23.810  +13 21 19.84  24.3r 11UU411   568  C~1C6O      
2013 02  02.24144  02 00 40.907  +13 22 27.65  24.6r 11UU411   568  C~1C6O      
2013 02  03.24708  02 00 42.735  +13 22 35.94  24.5r 11UU411   568  C~1C6O      
2013 02  17.26070  02 01 17.402  +13 25 24.74        11UU411   568  C~1C6O      
2019 10  26.399170 02 40 02.040  +16 52 33.80  24.6G 11UU411   G37  C~3chz      
2019 10  26.484420 02 40 01.624  +16 52 31.85        11UU411   G37  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    -0.01       0.00     0.17
     2   0.0001      0.00     0.04       0.00    -0.12
     3   0.0003      0.00    -0.15       0.00     0.11
     4   0.1531      0.00    -0.15       0.00    -0.09
     5   0.1532      0.00    -0.13       0.00    -0.13
     6   0.1533      0.00     0.01       0.00    -0.05
     7   0.1586      0.00     0.02       0.00    -0.25
     8   0.1643      0.00     0.03       0.00    -0.12
     9   0.1699      0.00    -0.09       0.00     0.26
    10   0.1725      0.00     0.02       0.00    -0.02
    11   0.2377      0.00     0.03       0.00     0.06
    12   0.2542      0.00     0.03       0.00     0.02
    13   0.2543      0.00     0.22       0.00     0.15
    14   0.4074      0.00    -0.05       0.00    -0.15
    15   0.4130      0.00     0.07       0.00    -0.01
    16   0.9694      0.00    -0.31       0.00     0.11
    17   0.9832      0.00     0.08       0.00    -0.00
    18   0.9885      0.00     0.20       0.00    -0.07
    19   1.1359      0.00     0.15       0.00     0.13
    20   1.1444      0.00    -0.01       0.00     0.15
    21   1.3795      0.00    -0.03       0.00     0.12
    22   1.4312      0.00    -0.13       0.00     0.08
    23   1.4340      0.00    -0.09       0.00    -0.17
    24   1.4723      0.00     0.10       0.00    -0.22
    25   8.1586      0.00     0.08       0.00     0.07
    26   8.1588      0.00    -0.08       0.00    -0.07

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.

11UU411    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.315    44.315    44.315
ecceobj         0.033     0.033     0.033
incobj          1.692     1.692     1.692
qmin           41.541    41.543    41.541
qmax           46.607    46.605    46.607
amean          43.993    43.993    43.993
amin           43.654    43.649    43.648
amax           44.345    44.345    44.345
emean           0.036     0.036     0.036
emin            0.020     0.020     0.020
emax            0.051     0.051     0.052
imean           2.484     2.484     2.484
imin            1.769     1.769     1.769
imax            3.055     3.055     3.055
excite_mean     0.057     0.057     0.057
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       177.7     177.8     177.9
kozaiamp        180.0     180.0     180.0