Orbit Fit and Astrometric record for 11UE412

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: 11UE412   
# Created Thu Dec 14 02:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   1.43y
# First observation: 2011/08/29
#  Last observation: 2013/02/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000128   0.016633  -0.000016  -0.006889   0.020939   0.000000
# Chi-squared of fit:     9.70 DOF:   46 RMS:  0.11
# Min/Max residuals:    -0.26    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.218281E-05  1.649975E-02 -5.559968E-06 -6.919478E-03  2.096005E-02  7.255497E-04
# Covariance matrix:
  3.4520E-13 -1.1912E-14  1.8889E-14 -1.7751E-13  3.9719E-13  1.9501E-11
 -1.1912E-14  2.9625E-13  1.2391E-14 -1.1808E-13  2.8064E-13  1.2990E-11
  1.8889E-14  1.2391E-14  1.6008E-13 -1.6480E-13  3.8767E-14  2.3466E-12
 -1.7751E-13 -1.1808E-13 -1.6480E-13  3.9733E-13 -3.6670E-13 -2.1316E-11
  3.9719E-13  2.8064E-13  3.8767E-14 -3.6670E-13  8.4464E-13  4.0313E-11
  1.9501E-11  1.2990E-11  2.3466E-12 -2.1316E-11  4.0313E-11  2.3336E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.213971   33.917108    0.857199    0.020381   -0.527948  2455803.033246
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          165.43786 +/-     1.267
Argument of Peri:        6.17148 +/-     1.272
Long of Asc Node:      218.12996 +/-     0.000
Inclination:            22.73896 +/-     0.001
Eccentricity:         0.10635960 +/-    0.0005
Semi-Major Axis:     43.72092872 +/-    0.0045
Time of Perihelion: 2407275.5731 +/-     371.4
Perihelion:          39.07078815 +/-    0.0216
Aphelion:            48.37106930 +/-    0.0218
Period (y)              289.0961 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.48235840 +/-    0.0017
Ecliptic Y           26.18651663 +/-    0.0011
Ecliptic Z            1.84285634 +/-    0.0001
Ecliptic XDOT        -0.00109819 +/-    0.0000
Ecliptic YDOT         0.00186624 +/-    0.0000
Ecliptic ZDOT        -0.00089944 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.24884573 +/-    0.0016
Geocenter to KBO     47.70980072 +/-    0.0021
# Hcoef:  6.76

The following table shows the complete astrometric record for 11UE412. 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 (11UE412) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.53248  02 03 34.998  +14 54 21.78  23.4r 11UE412   568  C~1C6P      
2011 08  29.57665  02 03 34.911  +14 54 21.33  23.4r 11UE412   568  C~1C6P      
2011 08  29.62382  02 03 34.806  +14 54 20.77  23.5r 11UE412   568  C~1C6P      
2011 09  05.56255  02 03 19.752  +14 52 49.40  23.7r 11UE412   568  C~1C6P      
2011 10  24.44181  02 00 26.579  +14 35 11.10  23.3r 11UE412   568  C~1C6P      
2011 10  24.48455  02 00 26.400  +14 35 09.95  23.3r 11UE412   568  C~1C6P      
2011 10  24.52730  02 00 26.215  +14 35 08.85  23.3r 11UE412   568  C~1C6P      
2011 10  30.56385  02 00 01.004  +14 32 28.49  23.3r 11UE412   568  C~1C6P      
2011 10  31.54671  01 59 56.913  +14 32 02.32  23.5r 11UE412   568  C~1C6P      
2011 11  24.30055  01 58 24.073  +14 21 44.94  23.3r 11UE412   568  C~1C6P      
2011 11  24.30481  01 58 24.057  +14 21 44.89  23.4r 11UE412   568  C~1C6P      
2012 08  17.56010  02 08 05.928  +14 53 03.63  23.3r 11UE412   568  C~1C6P      
2012 08  22.61568  02 07 59.768  +14 52 22.15  23.6r 11UE412   568  C~1C6P      
2012 08  23.53343  02 07 58.440  +14 52 13.36  23.6r 11UE412   568  C~1C6P      
2012 08  23.54629  02 07 58.423  +14 52 13.33  23.6r 11UE412   568  C~1C6P      
2012 08  24.51776  02 07 56.958  +14 52 03.89  23.2r 11UE412   568  C~1C6P      
2012 08  24.56913  02 07 56.866  +14 52 03.32  23.5r 11UE412   568  C~1C6P      
2012 10  17.36532  02 05 09.843  +14 35 02.30  23.3r 11UE412   568  C~1C6P      
2012 10  20.46016  02 04 57.015  +14 33 42.83  23.5r 11UE412   568  C~1C6P      
2012 10  21.31465  02 04 53.471  +14 33 20.83  23.2r 11UE412   568  C~1C6P      
2012 10  21.34035  02 04 53.363  +14 33 20.22  23.4r 11UE412   568  C~1C6P      
2012 10  21.36603  02 04 53.250  +14 33 19.60  23.4r 11UE412   568  C~1C6P      
2013 01  04.33671  02 01 01.896  +14 06 12.25  23.5r 11UE412   568  C~1C6P      
2013 01  14.35870  02 00 57.495  +14 04 44.84  23.7r 11UE412   568  C~1C6P      
2013 02  02.24144  02 01 12.014  +14 04 01.92  23.9r 11UE412   568  C~1C6P      
2013 02  03.24708  02 01 13.611  +14 04 04.11  23.4r 11UE412   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     0.05       0.00     0.07
  2   0.0001     -1.34     0.10       0.01     0.13
  3   0.0003     -2.96    -0.04       0.00     0.18
  4   0.0192   -239.27    -0.06     -11.30     0.04
  5   0.1531  -2962.30    -0.06    -142.66     0.07
  6   0.1532  -2965.14    -0.03    -142.85     0.03
  7   0.1533  -2968.04    -0.07    -142.95     0.08
  8   0.1698  -3367.00    -0.06    -167.16    -0.17
  9   0.1725  -3431.81    -0.08    -171.21    -0.14
 10   0.2376  -4911.31     0.12    -283.64    -0.08
 11   0.2376  -4911.55     0.13    -283.60    -0.03
 12   0.9693   3668.47     0.04   -1405.88    -0.08
 13   0.9831   3570.39     0.06   -1414.85    -0.17
 14   0.9856   3549.29    -0.13   -1416.64    -0.26
 15   0.9857   3549.05    -0.06   -1416.58    -0.19
 16   0.9883   3525.86    -0.01   -1418.31    -0.12
 17   0.9885   3524.42    -0.15   -1418.40    -0.14
 18   1.1358    898.40     0.05   -1558.95     0.16
 19   1.1442    696.23     0.06   -1570.35    -0.02
 20   1.1466    640.36     0.14   -1573.54     0.04
 21   1.1466    638.68     0.16   -1573.58     0.08
 22   1.1467    636.93     0.12   -1573.60     0.14
 23   1.3520  -3079.68    -0.17   -1952.14     0.15
 24   1.3794  -3169.91    -0.07   -2012.18     0.05
 25   1.4311  -2986.30    -0.01   -2125.19     0.08
 26   1.4339  -2963.72    -0.01   -2131.13     0.09

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.

11UE412    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.799    43.815    43.786
ecceobj         0.105     0.106     0.104
incobj         22.714    22.714    22.714
qmin           37.577    37.528    37.560
qmax           49.799    49.839    49.696
amean          43.528    43.541    43.518
amin           43.169    43.198    43.170
amax           43.918    43.936    43.880
emean           0.118     0.119     0.118
emin            0.103     0.104     0.103
emax            0.134     0.136     0.133
imean          23.474    23.468    23.478
imin           23.095    23.067    23.113
imax           23.902    23.887    23.899
excite_mean     0.416     0.416     0.415
fracstop        1.000     1.000     1.000
cjmean          2.882     2.882     2.882

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       168.2     168.2     168.3
kozaiamp        180.0     180.0     180.0