Orbit Fit and Astrometric record for 11UK411

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: 11UK411   
# Created Fri Nov 16 02:09:09 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   74 observations of   74
# Arc:   6.23y
# First observation: 2008/10/29
#  Last observation: 2015/01/22
# Chi-squared of fit:    34.31 DOF:  142 RMS:  0.12
# Min/Max residuals:    -0.35    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.807503E-05  3.371420E-02 -3.305744E-06 -7.761909E-03  2.993120E-02 -5.138391E-03
# Covariance matrix:
  3.9646E-13 -1.8589E-13 -5.7259E-14  3.5933E-14 -8.9181E-14 -5.7513E-13
 -1.8589E-13  1.0486E-13  3.6232E-14 -2.2778E-14  4.6630E-14  3.6451E-13
 -5.7259E-14  3.6232E-14  1.5603E-13 -3.8339E-14  1.5218E-14  1.3629E-13
  3.5933E-14 -2.2778E-14 -3.8339E-14  1.2565E-14 -9.3612E-15 -8.5785E-14
 -8.9181E-14  4.6630E-14  1.5218E-14 -9.3612E-15  6.9592E-14  1.5016E-13
 -5.7513E-13  3.6451E-13  1.3629E-13 -8.5785E-14  1.5016E-13  1.3726E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.516075   24.446048   -0.207353    0.059696   -0.970916  2454768.884016
# Heliocentric elements and errors
Epoch:              2454768.5000  =  2008/10/29
Mean Anomaly:          331.91341 +/-     0.005
Argument of Peri:      209.77928 +/-     0.009
Long of Asc Node:      219.25995 +/-     0.000
Inclination:            13.43262 +/-     0.000
Eccentricity:         0.23261080 +/-    0.0000
Semi-Major Axis:     42.36347221 +/-    0.0017
Time of Perihelion: 2462625.9605 +/-       5.8
Perihelion:          32.50927086 +/-    0.0019
Aphelion:            52.21767356 +/-    0.0025
Period (y)              275.7373 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.15878672 +/-    0.0003
Ecliptic Y           14.38741049 +/-    0.0001
Ecliptic Z            2.04887228 +/-    0.0000
Ecliptic XDOT        -0.00165772 +/-    0.0000
Ecliptic YDOT         0.00263371 +/-    0.0000
Ecliptic ZDOT        -0.00073760 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.38126406 +/-    0.0002
Geocenter to KBO     33.41007212 +/-    0.0003
# Hcoef:  6.91

The following table shows the complete astrometric record for 11UK411. 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 (11UK411) followed by the observatory code and reference code for the source of the astrometry.

2008 10  29.383262 01 25 16.13   +12 44 33.6   22.1V 11UK411   645  C~1S7G      
2008 10  29.384091 01 25 16.13   +12 44 33.6   21.7V 11UK411   645  C~1S7G      
2008 10  29.386579 01 25 16.12   +12 44 33.5   23.1V 11UK411   645  C~1S7G      
2010 10  07.38274  01 43 36.26   +13 32 52.7   22.3w 11UK411   F51  C~0SWU      
2010 10  07.39802  01 43 36.17   +13 32 52.1   22.4w 11UK411   F51  C~0SWU      
2010 10  07.41399  01 43 36.08   +13 32 51.6   22.4w 11UK411   F51  C~0SWU      
2010 10  07.43137  01 43 35.98   +13 32 51.0   22.4w 11UK411   F51  C~0SWU      
2010 10  12.48902  01 43 08.64   +13 29 58.7   22.4w 11UK411   F51  C~0SWU      
2010 10  12.50431  01 43 08.58   +13 29 58.3   22.3w 11UK411   F51  C~0SWU      
2010 10  12.51958  01 43 08.49   +13 29 57.7   22.3w 11UK411   F51  C~0SWU      
2011 08  29.49423  01 54 37.030  +14 05 21.03  22.0r 11UK411   568  C~1C6N      
2011 08  29.54612  01 54 36.887  +14 05 20.25  22.1r 11UK411   568  C~1C6N      
2011 08  29.59319  01 54 36.760  +14 05 19.46  22.3r 11UK411   568  C~1C6N      
2011 09  05.53271  01 54 16.422  +14 03 18.55  22.1r 11UK411   568  C~1C6N      
2011 10  24.41192  01 50 22.252  +13 39 22.41  22.0r 11UK411   568  C~1C6N      
2011 10  24.45467  01 50 22.008  +13 39 20.90  21.9r 11UK411   568  C~1C6N      
2011 10  24.49734  01 50 21.767  +13 39 19.37  22.0r 11UK411   568  C~1C6N      
2011 10  28.30888  01 50 00.547  +13 37 02.88  21.9r 11UK411   568  C~1C6N      
2011 10  29.31568  01 49 54.948  +13 36 26.76        11UK411   568  C~1C6N      
2011 10  30.53322  01 49 48.177  +13 35 43.13  22.1r 11UK411   568  C~1C6N      
2011 10  31.51590  01 49 42.755  +13 35 07.86  22.1r 11UK411   568  C~1C6N      
2011 11  24.26219  01 47 41.945  +13 21 28.53  22.2r 11UK411   568  C~1C6N      
2011 11  26.48272  01 47 32.155  +13 20 18.18  22.2r 11UK411   568  C~1C6N      
2012 01  25.26215  01 46 09.161  +13 04 17.27  22.4r 11UK411   568  C~1C6N      
2012 01  26.24693  01 46 11.170  +13 04 19.91  22.2r 11UK411   568  C~1C6N      
2012 02  15.25232  01 47 15.469  +13 07 28.67  22.4r 11UK411   568  C~1C6N      
2012 08  17.56436  02 03 16.120  +14 22 15.01  22.2r 11UK411   568  C~1C6N      
2012 08  23.55059  02 03 06.839  +14 21 14.92        11UK411   568  C~1C6N      
2012 08  23.55926  02 03 06.821  +14 21 14.79        11UK411   568  C~1C6N      
2012 08  24.52210  02 03 04.980  +14 21 03.24  22.3r 11UK411   568  C~1C6N      
2012 08  24.58191  02 03 04.853  +14 21 02.46  22.4r 11UK411   568  C~1C6N      
2012 10  11.35477  01 59 54.090  +14 01 48.28  21.9w 11UK411   F51  C~1vWY      
2012 10  11.36976  01 59 54.002  +14 01 48.03  22.1w 11UK411   F51  C~1vWY      
2012 10  11.38473  01 59 53.927  +14 01 47.52  22.0w 11UK411   F51  C~1vWY      
2012 10  11.39980  01 59 53.836  +14 01 46.95  22.0w 11UK411   F51  C~1vWY      
2012 10  17.36966  01 59 20.975  +13 58 25.03  21.9r 11UK411   568  C~1C6N      
2012 10  17.41240  01 59 20.727  +13 58 23.66  21.9r 11UK411   568  C~1C6N      
2012 10  20.46455  01 59 03.651  +13 56 38.36  22.1r 11UK411   568  C~1C6N      
2012 11  07.27604  01 57 24.357  +13 46 11.26  22.1w 11UK411   F51  C~1vWY      
2012 11  07.27669  01 57 24.373  +13 46 11.01  21.7w 11UK411   F51  C~1vWY      
2012 11  07.29074  01 57 24.288  +13 46 10.40  22.1w 11UK411   F51  C~1vWY      
2012 11  07.30415  01 57 24.220  +13 46 10.29  21.9w 11UK411   F51  C~1vWY      
2012 11  07.31826  01 57 24.155  +13 46 09.62  22.2w 11UK411   F51  C~1vWY      
2012 11  07.31892  01 57 24.142  +13 46 09.63  22.1w 11UK411   F51  C~1vWY      
2013 01  14.33106  01 54 02.982  +13 19 51.13  22.4r 11UK411   568  C~1C6N      
2013 02  06.29444  01 54 46.502  +13 20 48.80  22.4r 11UK411   568  C~1C6N      
2013 02  11.23406  01 55 03.730  +13 21 45.16  22.1w 11UK411   F51  C~1vWY      
2013 02  11.23931  01 55 03.747  +13 21 44.76  22.1w 11UK411   F51  C~1vWY      
2013 02  11.24457  01 55 03.740  +13 21 44.99  22.2w 11UK411   F51  C~1vWY      
2013 02  17.27964  01 55 28.304  +13 23 13.17  22.6r 11UK411   568  C~1C6N      
2014 09  02.49038  02 19 37.218  +14 45 33.15  22.2w 11UK411   F51  C~1vWY      
2014 09  02.50254  02 19 37.203  +14 45 32.85  22.3w 11UK411   F51  C~1vWY      
2014 09  02.51467  02 19 37.155  +14 45 32.97  22.4w 11UK411   F51  C~1vWZ      
2014 09  02.52678  02 19 37.130  +14 45 32.65  22.1w 11UK411   F51  C~1vWZ      
2014 10  02.39221  02 17 44.658  +14 34 07.83  21.6i 11UK411   F51  C~1vWZ      
2014 10  02.40440  02 17 44.598  +14 34 07.56  21.4i 11UK411   F51  C~1vWZ      
2014 10  02.41661  02 17 44.537  +14 34 07.09  21.5i 11UK411   F51  C~1vWZ      
2014 10  02.42885  02 17 44.489  +14 34 06.66  21.5i 11UK411   F51  C~1vWZ      
2014 11  21.41878  02 13 10.442  +14 06 43.18  22.1w 11UK411   F51  C~1vWZ      
2014 11  21.43034  02 13 10.395  +14 06 42.39  22.1w 11UK411   F51  C~1vWZ      
2014 11  21.44196  02 13 10.319  +14 06 42.11  22.2w 11UK411   F51  C~1vWZ      
2014 11  21.45362  02 13 10.261  +14 06 42.13  22.4w 11UK411   F51  C~1vWZ      
2014 12  13.33872  02 11 33.900  +13 56 19.01  22.3w 11UK411   F51  C~1vWZ      
2014 12  13.35174  02 11 33.859  +13 56 18.67  22.4w 11UK411   F51  C~1vWZ      
2014 12  13.36466  02 11 33.797  +13 56 18.21  22.4w 11UK411   F51  C~1vWZ      
2014 12  13.37762  02 11 33.760  +13 56 18.01  22.1w 11UK411   F51  C~1vWZ      
2015 01  10.26591  02 10 35.664  +13 48 27.85  22.3w 11UK411   F51  C~1vWZ      
2015 01  10.27910  02 10 35.661  +13 48 27.78  22.2w 11UK411   F51  C~1vWZ      
2015 01  10.29228  02 10 35.640  +13 48 27.78  22.5w 11UK411   F51  C~1vWZ      
2015 01  10.30550  02 10 35.648  +13 48 27.46  22.4w 11UK411   F51  C~1vWZ      
2015 01  22.22642  02 10 38.101  +13 47 27.46  22.2w 11UK411   F51  C~1vWZ      
2015 01  22.24176  02 10 38.121  +13 47 27.32  22.0w 11UK411   F51  C~1vWZ      
2015 01  22.25708  02 10 38.121  +13 47 27.30  22.1w 11UK411   F51  C~1vWZ      
2015 01  22.27245  02 10 38.148  +13 47 27.26  21.9w 11UK411   F51  C~1vWZ      

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   0.0000      0.00     0.08       0.00    -0.14
  3   0.0000      0.00     0.13       0.00    -0.15
  4   1.9384      0.00     0.09       0.00     0.03
  5   1.9384      0.00    -0.01       0.00    -0.06
  6   1.9385      0.00    -0.06       0.00    -0.03
  7   1.9385      0.00    -0.14       0.00    -0.05
  8   1.9524      0.00    -0.35       0.00    -0.13
  9   1.9524      0.00     0.02       0.00    -0.00
 10   1.9525      0.00    -0.05       0.00    -0.07
 11   2.8312      0.00     0.00       0.00     0.14
 12   2.8314      0.00    -0.04       0.00     0.15
 13   2.8315      0.00    -0.04       0.00     0.09
 14   2.8505      0.00     0.06       0.00    -0.05
 15   2.9843      0.00     0.02       0.00     0.07
 16   2.9845      0.00     0.01       0.00     0.09
 17   2.9846      0.00     0.03       0.00     0.09
 18   2.9950      0.00     0.15       0.00     0.03
 19   2.9978      0.00     0.03       0.00     0.03
 20   3.0011      0.00    -0.08       0.00     0.11
 21   3.0038      0.00    -0.07       0.00     0.10
 22   3.0688      0.00     0.19       0.00    -0.01
 23   3.0749      0.00     0.13       0.00    -0.14
 24   3.2385      0.00    -0.18       0.00     0.09
 25   3.2412      0.00    -0.23       0.00     0.06
 26   3.2960      0.00    -0.06       0.00     0.03
 27   3.8006      0.00    -0.14       0.00     0.13
 28   3.8170      0.00    -0.08       0.00    -0.01
 29   3.8170      0.00    -0.10       0.00    -0.04
 30   3.8197      0.00    -0.05       0.00     0.02
 31   3.8198      0.00    -0.10       0.00    -0.02
 32   3.9506      0.00     0.20       0.00    -0.13
 33   3.9507      0.00     0.12       0.00     0.11
 34   3.9507      0.00     0.24       0.00     0.09
 35   3.9508      0.00     0.12       0.00     0.02
 36   3.9671      0.00     0.15       0.00    -0.15
 37   3.9672      0.00     0.06       0.00    -0.05
 38   3.9756      0.00    -0.02       0.00     0.16
 39   4.0243      0.00    -0.29       0.00     0.20
 40   4.0243      0.00     0.01       0.00    -0.03
 41   4.0244      0.00    -0.11       0.00    -0.15
 42   4.0244      0.00    -0.02       0.00     0.21
 43   4.0245      0.00     0.18       0.00     0.03
 44   4.0245      0.00     0.04       0.00     0.06
 45   4.2107      0.00     0.06       0.00    -0.03
 46   4.2735      0.00     0.01       0.00     0.09
 47   4.2871      0.00     0.17       0.00     0.34
 48   4.2871      0.00     0.13       0.00    -0.13
 49   4.2871      0.00    -0.26       0.00     0.03
 50   4.3036      0.00    -0.23       0.00    -0.19
 51   5.8429      0.00    -0.10       0.00    -0.03
 52   5.8429      0.00     0.13       0.00    -0.14
 53   5.8429      0.00    -0.13       0.00     0.17
 54   5.8430      0.00    -0.05       0.00     0.04
 55   5.9247      0.00    -0.01       0.00    -0.05
 56   5.9248      0.00    -0.00       0.00     0.03
 57   5.9248      0.00    -0.00       0.00    -0.09
 58   5.9248      0.00     0.19       0.00    -0.17
 59   6.0617      0.00    -0.11       0.00     0.09
 60   6.0617      0.00     0.09       0.00    -0.33
 61   6.0618      0.00    -0.14       0.00    -0.23
 62   6.0618      0.00    -0.09       0.00     0.16
 63   6.1217      0.00     0.03       0.00     0.01
 64   6.1217      0.00     0.13       0.00    -0.02
 65   6.1218      0.00    -0.10       0.00    -0.16
 66   6.1218      0.00     0.05       0.00    -0.05
 67   6.1982      0.00     0.05       0.00    -0.10
 68   6.1982      0.00     0.13       0.00    -0.06
 69   6.1982      0.00    -0.07       0.00     0.06
 70   6.1983      0.00     0.17       0.00    -0.14
 71   6.2309      0.00    -0.09       0.00     0.16
 72   6.2310      0.00     0.02       0.00     0.04
 73   6.2310      0.00    -0.17       0.00     0.04
 74   6.2310      0.00     0.04       0.00     0.03

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.

11UK411    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.741    42.741    42.741
ecceobj         0.239     0.239     0.239
incobj         13.387    13.387    13.387
qmin           31.520    31.520    31.519
qmax           53.573    53.574    53.573
amean          42.326    42.326    42.326
amin           41.922    41.922    41.922
amax           42.799    42.798    42.801
emean           0.234     0.234     0.234
emin            0.216     0.216     0.216
emax            0.253     0.253     0.253
imean          13.942    13.942    13.942
imin           13.297    13.297    13.297
imax           14.554    14.553    14.555
excite_mean     0.336     0.336     0.336
fracstop        1.000     1.000     1.000
cjmean          2.948     2.948     2.948

libcent 0       179.9     179.9     179.9
libamp  0        43.7      43.8      43.7
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       175.3     175.2     175.3
kozaiamp        179.9     179.9     179.9