Orbit Fit and Astrometric record for 11UX411

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: 11UX411   
# Created Wed Dec 13 02:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   23
# Arc:   1.38y
# First observation: 2011/08/29
#  Last observation: 2013/01/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.000279   0.026192   0.000011   0.003238   0.025396   0.000000
# Chi-squared of fit:    16.46 DOF:   40 RMS:  0.15
# Min/Max residuals:    -0.37    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.609508E-05  2.603018E-02  3.044343E-06  3.253203E-03  2.556837E-02  2.506454E-03
# Covariance matrix:
  9.2479E-13  3.5007E-13 -4.2327E-14  2.2370E-13  1.1095E-12  4.8595E-11
  3.5007E-13  6.5718E-13 -3.2802E-14  1.7641E-13  7.7159E-13  3.8441E-11
 -4.2327E-14 -3.2802E-14  1.6496E-13 -1.7567E-13 -6.3967E-14 -3.1972E-12
  2.2370E-13  1.7641E-13 -1.7567E-13  3.4165E-13  3.3971E-13  1.7241E-11
  1.1095E-12  7.7159E-13 -6.3967E-14  3.3971E-13  1.6293E-12  7.3859E-11
  4.8595E-11  3.8441E-11 -3.1972E-12  1.7241E-11  7.3859E-11  3.7587E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.056905   33.668341    0.854403    0.009803   -0.532717  2455803.085426
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:           41.45724 +/-     0.636
Argument of Peri:      318.29809 +/-     0.883
Long of Asc Node:       24.14468 +/-     0.001
Inclination:             7.19554 +/-     0.001
Eccentricity:         0.10272557 +/-    0.0019
Semi-Major Axis:     42.72263563 +/-    0.0157
Time of Perihelion: 2444054.6786 +/-     180.0
Perihelion:          38.33392872 +/-    0.0826
Aphelion:            47.11134253 +/-    0.0832
Period (y)              279.2513 +/-      0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.46531723 +/-    0.0016
Ecliptic Y           21.26427400 +/-    0.0011
Ecliptic Z            0.72155168 +/-    0.0000
Ecliptic XDOT        -0.00133040 +/-    0.0000
Ecliptic YDOT         0.00247037 +/-    0.0000
Ecliptic ZDOT         0.00035330 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.65624091 +/-    0.0015
Geocenter to KBO     39.11082956 +/-    0.0020
# Hcoef:  8.57

The following table shows the complete astrometric record for 11UX411. 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 (11UX411) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.58466  02 04 14.885  +13 44 00.86  24.4r 11UX411   568  C~1C6P      
2011 10  24.40337  02 00 29.942  +13 26 43.29  24.1r 11UX411   568  C~1C6P      
2011 10  24.44610  02 00 29.710  +13 26 42.28  24.2r 11UX411   568  C~1C6P      
2011 10  24.48881  02 00 29.486  +13 26 41.28  24.5r 11UX411   568  C~1C6P      
2011 10  26.42314  02 00 19.794  +13 25 53.32  24.4r 11UX411   568  C~1C6P      
2011 10  28.30027  02 00 10.371  +13 25 06.25        11UX411   568  C~1C6P      
2011 10  28.48012  02 00 09.431  +13 25 01.98        11UX411   568  C~1C6P      
2011 10  30.52443  01 59 59.185  +13 24 10.96  24.5r 11UX411   568  C~1C6P      
2011 10  31.50734  01 59 54.272  +13 23 46.30  24.3r 11UX411   568  C~1C6P      
2011 11  30.34253  01 57 38.235  +13 12 13.89  24.1r 11UX411   568  C~1C6P      
2011 11  30.35120  01 57 38.202  +13 12 13.77  24.7r 11UX411   568  C~1C6P      
2012 01  26.26707  01 56 14.924  +13 05 00.68  24.6r 11UX411   568  C~1C6P      
2012 01  27.32416  01 56 16.360  +13 05 08.22  24.8r 11UX411   568  C~1C6P      
2012 08  17.56010  02 10 05.226  +14 25 39.92        11UX411   568  C~1C6P      
2012 08  22.61568  02 09 58.273  +14 25 23.49  24.2r 11UX411   568  C~1C6P      
2012 08  24.51776  02 09 55.054  +14 25 13.77  24.3r 11UX411   568  C~1C6P      
2012 10  17.36532  02 06 36.345  +14 10 49.24  24.5r 11UX411   568  C~1C6P      
2012 10  17.40813  02 06 36.129  +14 10 48.10  24.6r 11UX411   568  C~1C6P      
2012 10  17.42550  02 06 36.029  +14 10 47.96  24.6r 11UX411   568  C~1C6P      
2012 10  20.46016  02 06 20.911  +14 09 35.55        11UX411   568  C~1C6P      
2013 01  04.33671  02 01 38.467  +13 45 48.56  24.1r 11UX411   568  C~1C6P      
2013 01  14.32244  02 01 33.564  +13 45 20.45  24.4r 11UX411   568  C~1C6P      
2013 01  14.35870  02 01 33.567  +13 45 20.12  24.3r 11UX411   568  C~1C6P      

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     0.00       0.00    -0.21
  2   0.1528  -3436.98     0.13     148.89    -0.15
  3   0.1529  -3440.51    -0.04     149.11    -0.04
  4   0.1531  -3443.92    -0.10     149.30     0.05
  5   0.1584  -3593.23     0.22     152.98     0.09
  6   0.1635  -3738.56     0.05     156.18    -0.11
  7   0.1640  -3752.91    -0.17     156.90     0.20
  8   0.1696  -3910.89    -0.12     160.56     0.21
  9   0.1723  -3986.71    -0.17     162.15     0.10
 10   0.2540  -6090.73    -0.04     199.73     0.08
 11   0.2540  -6091.22    -0.01     199.78     0.12
 12   0.4098  -7383.74     0.06     216.78    -0.08
 13   0.4127  -7361.41     0.22     216.53    -0.37
 14   0.9691   5643.23     0.27     629.85    -0.15
 15   0.9830   5542.48     0.17     648.21     0.09
 16   0.9882   5495.13    -0.12     654.72    -0.09
 17   1.1356   2483.24    -0.04     813.42     0.11
 18   1.1357   2479.90    -0.09     813.41    -0.02
 19   1.1358   2478.48    -0.17     813.77     0.30
 20   1.1441   2247.05    -0.06     820.08     0.20
 21   1.3518  -2104.81    -0.13     880.83    -0.00
 22   1.3792  -2181.56     0.10     878.96    -0.01
 23   1.3793  -2181.63     0.06     878.63    -0.33

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.

11UX411    quality flag:2

Type:      CLASSICAL  SCATNEAR  SCATNEAR

axisobj        42.814    42.866    42.766
ecceobj         0.105     0.110     0.100
incobj          7.190     7.190     7.189
qmin           36.661    35.704    37.479
qmax           48.615    49.592    47.755
amean          42.463    42.507    42.326
amin           42.065    42.079    41.878
amax           42.863    42.942    42.830
emean           0.095     0.127     0.090
emin            0.057     0.096     0.055
emax            0.134     0.157     0.116
imean           5.825     3.782     6.059
imin            3.714     0.071     4.180
imax            7.382     7.325     7.431
excite_mean     0.140     0.147     0.139
fracstop        1.000     1.000     1.000
cjmean          3.059     3.057     3.058

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       177.5     176.6     183.9
kozaiamp        180.0     180.0     180.0