Orbit Fit and Astrometric record for 11UT411

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: 11UT411   
# Created Thu Dec 14 02:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   20
# Arc:   1.43y
# First observation: 2011/08/29
#  Last observation: 2013/02/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000110   0.016722   0.000005   0.001648   0.019751   0.000000
# Chi-squared of fit:    10.70 DOF:   34 RMS:  0.13
# Min/Max residuals:    -0.26    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.428102E-05  1.654074E-02  2.562373E-06  1.636841E-03  1.972953E-02 -6.924250E-03
# Covariance matrix:
  6.3310E-13  9.3069E-14 -2.5403E-14  1.0618E-13  7.8297E-13  4.4784E-11
  9.3069E-14  5.6364E-13 -1.5864E-14  7.5531E-14  4.3236E-13  3.3105E-11
 -2.5403E-14 -1.5864E-14  1.3823E-13 -1.6425E-13 -4.2257E-14 -2.9109E-12
  1.0618E-13  7.5531E-14 -1.6425E-13  4.1763E-13  1.8326E-13  1.4045E-11
  7.8297E-13  4.3236E-13 -4.2257E-14  1.8326E-13  1.2617E-12  7.8192E-11
  4.4784E-11  3.3105E-11 -2.9109E-12  1.4045E-11  7.8192E-11  6.1777E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.939247   32.652364    0.844985    0.028055   -0.546915  2455803.068576
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          304.97964 +/-     0.437
Argument of Peri:      129.33746 +/-     0.124
Long of Asc Node:        4.81603 +/-     0.009
Inclination:             6.40715 +/-     0.002
Eccentricity:         0.40647842 +/-    0.0043
Semi-Major Axis:     56.06849063 +/-    0.2326
Time of Perihelion: 2479237.2651 +/-     115.5
Perihelion:          33.27785901 +/-    0.2762
Aphelion:            78.85912225 +/-    0.4053
Period (y)              419.8426 +/-      2.61
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.53926261 +/-    0.0024
Ecliptic Y           26.89621545 +/-    0.0015
Ecliptic Z            2.59914758 +/-    0.0002
Ecliptic XDOT        -0.00205934 +/-    0.0000
Ecliptic YDOT         0.00141396 +/-    0.0000
Ecliptic ZDOT         0.00017763 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   51.24284694 +/-    0.0022
Geocenter to KBO     50.68545421 +/-    0.0029
# Hcoef:  7.61

The following table shows the complete astrometric record for 11UT411. 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 (11UT411) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.56781  01 57 38.171  +15 09 07.13        11UT411   568  C~1C6O      
2011 09  05.55403  01 57 22.767  +15 08 12.78  24.4r 11UT411   568  C~1C6O      
2011 10  25.32003  01 54 30.228  +14 54 50.74  24.5r 11UT411   568  C~1C6O      
2011 10  25.36849  01 54 30.037  +14 54 49.97  24.3r 11UT411   568  C~1C6O      
2011 10  25.42298  01 54 29.801  +14 54 48.93  24.5r 11UT411   568  C~1C6O      
2011 10  25.47742  01 54 29.594  +14 54 47.74        11UT411   568  C~1C6O      
2011 10  25.48274  01 54 29.552  +14 54 47.65  24.7r 11UT411   568  C~1C6O      
2011 10  26.27399  01 54 26.404  +14 54 31.26  24.5r 11UT411   568  C~1C6O      
2011 10  26.32667  01 54 26.195  +14 54 30.05  24.6r 11UT411   568  C~1C6O      
2011 10  26.36985  01 54 26.016  +14 54 28.97  24.5r 11UT411   568  C~1C6O      
2011 10  31.37555  01 54 05.992  +14 52 44.59        11UT411   568  C~1C6O      
2011 10  31.54242  01 54 05.331  +14 52 40.89  24.1r 11UT411   568  C~1C6O      
2011 11  24.28776  01 52 36.972  +14 44 35.36  24.6r 11UT411   568  C~1C6O      
2011 11  30.32972  01 52 17.634  +14 42 42.69        11UT411   568  C~1C6O      
2012 01  27.33942  01 51 12.103  +14 34 24.49  24.5r 11UT411   568  C~1C6O      
2012 08  17.56862  02 01 31.158  +15 34 58.21        11UT411   568  C~1C6O      
2012 08  24.52636  02 01 21.329  +15 34 37.72  24.5r 11UT411   568  C~1C6O      
2012 10  17.37393  01 58 34.873  +15 22 44.74  24.4r 11UT411   568  C~1C6O      
2012 10  20.46885  01 58 22.414  +15 21 42.81  24.7r 11UT411   568  C~1C6O      
2013 02  03.26646  01 54 51.375  +14 59 57.38  24.7r 11UT411   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    -0.21       0.00    -0.26
  2   0.0191   -228.03     0.12      26.45    -0.12
  3   0.1554  -2850.58    -0.01     146.58    -0.14
  4   0.1555  -2853.45     0.15     146.83     0.04
  5   0.1557  -2857.02    -0.00     147.06     0.19
  6   0.1558  -2860.25     0.18     146.99     0.06
  7   0.1558  -2860.85    -0.08     147.12     0.18
  8   0.1580  -2909.34     0.09     147.76     0.16
  9   0.1581  -2912.60     0.11     147.69     0.02
 10   0.1583  -2915.41     0.00     147.58    -0.14
 11   0.1720  -3223.92    -0.16     151.58     0.16
 12   0.1724  -3234.19    -0.04     151.48    -0.08
 13   0.2374  -4604.94    -0.21     147.34     0.07
 14   0.2540  -4907.35    -0.15     140.77    -0.14
 15   0.4128  -5973.79     0.23      10.50    -0.07
 16   0.9692   3698.42     0.07     293.76     0.15
 17   0.9883   3557.95     0.01     323.21     0.18
 18   1.1357   1052.98    -0.05     482.69    -0.13
 19   1.1442    862.48    -0.02     486.95    -0.10
 20   1.4338  -2456.10    -0.02     326.53    -0.06

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.

11UT411    quality flag:2

Type:         5:2EEE  SCATNEAR  SCATNEAR

axisobj        56.209    56.900    55.555
ecceobj         0.406     0.418     0.394
incobj          6.399     6.399     6.400
qmin           32.498    30.464    31.952
qmax           80.237    96.992    91.958
amean          55.464    54.801    56.005
amin           54.475    42.279    48.050
amax           56.654    64.364    62.559
emean           0.404     0.417     0.407
emin            0.391     0.262     0.320
emax            0.416     0.508     0.470
imean           6.764     6.986     4.292
imin            6.375     2.434     0.234
imax            7.142    11.011     7.744
excite_mean     0.420     0.436     0.415
fracstop        1.000     1.000     1.000
cjmean          3.009     2.977     3.018

libcent 0       180.5    -180.0    -180.0
libamp  0       159.0    -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       176.8     180.5     182.4
kozaiamp        180.0     180.0     179.9