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 Sat Oct 21 01:37:57 2017
# Orbit generated from Bernstein formalism
# Fitting   74 observations of   74
# Arc:   6.23y
# First observation: 2008/10/29
#  Last observation: 2015/01/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.003121   0.035168   0.000545  -0.008040   0.032332   0.000000
# Chi-squared of fit:    34.19 DOF:  142 RMS:  0.12
# Min/Max residuals:    -0.36    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.806954E-05  3.371421E-02 -3.308744E-06 -7.761901E-03  2.993119E-02 -5.138493E-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:              2454760.5000  =  2008/10/21
Mean Anomaly:          331.88493 +/-     0.005
Argument of Peri:      209.77949 +/-     0.009
Long of Asc Node:      219.25997 +/-     0.000
Inclination:            13.43260 +/-     0.000
Eccentricity:         0.23261515 +/-    0.0000
Semi-Major Axis:     42.36367229 +/-    0.0017
Time of Perihelion: 2462625.9847 +/-       1.4
Perihelion:          32.50924030 +/-    0.0019
Aphelion:            52.21810428 +/-    0.0025
Period (y)              275.7393 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.15880260 +/-    0.0003
Ecliptic Y           14.38741751 +/-    0.0001
Ecliptic Z            2.04887325 +/-    0.0000
Ecliptic XDOT        -0.00165773 +/-    0.0000
Ecliptic YDOT         0.00263371 +/-    0.0000
Ecliptic ZDOT        -0.00073760 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.38119608 +/-    0.0002
Geocenter to KBO     33.40996940 +/-    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    -0.05       0.00    -0.16
  2   0.0000      0.00     0.02       0.00    -0.16
  3   0.0000     -0.17     0.06      -0.04    -0.18
  4   1.9384  16059.39     0.10   -3136.35    -0.01
  5   1.9384  16057.94    -0.03   -3136.45    -0.06
  6   1.9385  16056.53    -0.06   -3136.45    -0.01
  7   1.9385  16054.94    -0.14   -3136.49     0.00
  8   1.9524  15618.43    -0.36   -3156.05    -0.00
  9   1.9524  15617.46     0.03   -3156.11    -0.01
 10   1.9525  15616.01    -0.07   -3156.21    -0.05
 11   2.8312  25864.07     0.06   -4686.88     0.13
 12   2.8314  25861.82     0.02   -4686.89     0.16
 13   2.8315  25859.78     0.01   -4687.00     0.10
 14   2.8505  25535.31     0.04   -4698.49    -0.07
 15   2.9843  21789.23     0.05   -4862.69     0.06
 16   2.9845  21785.32     0.04   -4862.86     0.08
 17   2.9846  21781.45     0.06   -4863.07     0.07
 18   2.9950  21440.19     0.15   -4883.06    -0.02
 19   2.9978  21350.12     0.05   -4888.40     0.02
 20   3.0011  21241.21    -0.02   -4894.81     0.13
 21   3.0038  21153.89    -0.02   -4900.24     0.12
 22   3.0688  19197.43     0.18   -5050.28    -0.08
 23   3.0749  19037.56     0.08   -5065.94    -0.18
 24   3.2385  17553.60    -0.13   -5539.95     0.15
 25   3.2412  17582.22    -0.18   -5547.88     0.14
 26   3.2960  18535.77    -0.04   -5703.43     0.05
 27   3.8006  33468.56    -0.08   -6325.02     0.17
 28   3.8170  33317.46    -0.07   -6336.27     0.02
 29   3.8170  33317.16    -0.10   -6336.30    -0.00
 30   3.8197  33287.32    -0.03   -6338.18     0.04
 31   3.8198  33285.26    -0.09   -6338.29     0.01
 32   3.9506  30212.27     0.15   -6485.54    -0.19
 33   3.9507  30210.95     0.16   -6485.34     0.06
 34   3.9507  30209.73     0.26   -6485.45     0.01
 35   3.9508  30208.26     0.13   -6485.53    -0.02
 36   3.9671  29678.74     0.09   -6512.60    -0.19
 37   3.9672  29674.80     0.04   -6512.66    -0.07
 38   3.9756  29399.62     0.04   -6526.94     0.16
 39   4.0243  27795.63    -0.19   -6622.08     0.28
 40   4.0243  27795.77     0.00   -6622.40    -0.03
 41   4.0244  27794.37    -0.15   -6622.55    -0.11
 42   4.0244  27793.38     0.06   -6622.31     0.20
 43   4.0245  27792.25     0.18   -6622.62    -0.03
 44   4.0245  27792.07     0.06   -6622.54     0.04
 45   4.2107  24441.47     0.05   -7096.54    -0.05
 46   4.2735  25067.25     0.05   -7263.86     0.08
 47   4.2871  25326.77     0.28   -7298.26     0.26
 48   4.2871  25326.87     0.08   -7298.72    -0.17
 49   4.2871  25326.85    -0.23   -7298.47     0.12
 50   4.3036  25699.72    -0.27   -7340.00    -0.10
 51   5.8429  47958.58    -0.11   -9778.87     0.00
 52   5.8429  47958.26     0.08   -9779.09    -0.18
 53   5.8429  47957.60    -0.07   -9778.74     0.20
 54   5.8430  47957.13    -0.03   -9778.93     0.05
 55   5.9247  46098.74    -0.03   -9900.76    -0.04
 56   5.9248  46097.78     0.01   -9900.73     0.03
 57   5.9248  46096.74    -0.03   -9900.89    -0.08
 58   5.9248  46095.90     0.13   -9901.07    -0.22
 59   6.0617  41597.86    -0.07  -10154.32     0.13
 60   6.0617  41596.92    -0.02  -10154.85    -0.34
 61   6.0618  41595.74    -0.21  -10154.74    -0.18
 62   6.0618  41594.91    -0.03  -10154.44     0.19
 63   6.1217  40004.95     0.03  -10280.79    -0.00
 64   6.1217  40004.25     0.12  -10280.92    -0.06
 65   6.1218  40003.20    -0.15  -10281.05    -0.12
 66   6.1218  40002.61     0.03  -10281.06    -0.06
 67   6.1982  39013.81     0.01  -10446.51    -0.12
 68   6.1982  39013.74     0.10  -10446.57    -0.10
 69   6.1982  39013.44    -0.05  -10446.46     0.08
 70   6.1983  39013.45     0.12  -10446.81    -0.19
 71   6.2309  39028.34    -0.03  -10516.68     0.18
 72   6.2310  39028.58     0.03  -10516.91     0.03
 73   6.2310  39028.57    -0.15  -10516.93     0.10
 74   6.2310  39028.94     0.05  -10517.10     0.01

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        42.745    42.750    42.740
ecceobj         0.239     0.239     0.239
incobj         13.386    13.386    13.386
qmin           31.482    31.437    31.522
qmax           53.667    53.710    53.576
amean          42.326    42.326    42.326
amin           41.900    41.919    41.926
amax           42.805    42.817    42.789
emean           0.235     0.237     0.234
emin            0.216     0.215     0.216
emax            0.254     0.256     0.253
imean          13.900    13.818    13.941
imin           13.253    13.194    13.299
imax           14.569    14.590    14.549
excite_mean     0.336     0.337     0.336
fracstop        1.000     1.000     1.000
cjmean          2.948     2.948     2.949

libcent 0       180.5     181.5     180.4
libamp  0        47.0      50.4      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       176.1     178.6     175.1
kozaiamp        179.9     180.0     179.9