Orbit Fit and Astrometric record for 11UK413

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: 11UK413   
# Created Fri Dec 14 02:09:19 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   19 observations of   19
# Arc:  10.01y
# First observation: 2003/11/24
#  Last observation: 2013/11/27
# Chi-squared of fit:     9.77 DOF:   32 RMS:  0.13
# Min/Max residuals:    -0.27    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.614721E-05  2.444655E-02 -4.358736E-06 -5.756233E-03  2.525138E-02  2.194154E-03
# Covariance matrix:
  7.2807E-13 -1.6615E-13 -2.1617E-14  2.1150E-14 -8.7718E-14 -3.8183E-13
 -1.6615E-13  1.3771E-13  3.0564E-14 -3.0037E-14 -2.0583E-13  5.4212E-13
 -2.1617E-14  3.0564E-14  6.4186E-13 -8.3550E-14 -4.9087E-14  1.3020E-13
  2.1150E-14 -3.0037E-14 -8.3550E-14  1.7544E-14  4.8962E-14 -1.2796E-13
 -8.7718E-14 -2.0583E-13 -4.9087E-14  4.8962E-14  2.1331E-12 -8.8297E-13
 -3.8183E-13  5.4212E-13  1.3020E-13 -1.2796E-13 -8.8297E-13  2.3095E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.344425   62.942040    0.029114    0.057566   -0.984184  2452967.769583
# Heliocentric elements and errors
Epoch:              2452968.5000  =  2003/11/25
Mean Anomaly:           68.55816 +/-     0.096
Argument of Peri:       87.75634 +/-     0.115
Long of Asc Node:      256.52495 +/-     0.000
Inclination:            13.61214 +/-     0.000
Eccentricity:         0.08766230 +/-    0.0001
Semi-Major Axis:     41.63187762 +/-    0.0107
Time of Perihelion: 2434283.4568 +/-      27.1
Perihelion:          37.98233127 +/-    0.0106
Aphelion:            45.28142397 +/-    0.0123
Period (y)              268.6255 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           18.45441013 +/-    0.0010
Ecliptic Y           36.07528881 +/-    0.0020
Ecliptic Z            2.31012327 +/-    0.0001
Ecliptic XDOT        -0.00224035 +/-    0.0000
Ecliptic YDOT         0.00144348 +/-    0.0000
Ecliptic ZDOT        -0.00060902 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.58724104 +/-    0.0019
Geocenter to KBO     39.60179254 +/-    0.0023
# Hcoef:  6.39

The following table shows the complete astrometric record for 11UK413. 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 (11UK413) followed by the observatory code and reference code for the source of the astrometry.

2003 11  24.26884  04 00 44.49   +24 01 35.6   21.6R 11UK413   695  C~1w3o      
2003 11  24.34422  04 00 44.10   +24 01 33.9         11UK413   695  C~1w3o      
2010 11  09.54329  04 45 09.186  +23 22 48.91  22.7w 11UK413   F51  C~1w3o      
2010 11  09.56142  04 45 09.089  +23 22 48.67  22.6w 11UK413   F51  C~1w3o      
2010 11  09.57966  04 45 09.021  +23 22 48.49  22.4w 11UK413   F51  C~1w3o      
2010 11  09.59782  04 45 08.930  +23 22 48.30  22.5w 11UK413   F51  C~1w3o      
2010 11  16.55074  04 44 34.364  +23 21 28.69  22.4i 11UK413   F51  C~1w3o      
2011 10  25.42693  04 52 15.700  +23 15 42.94  22.5w 11UK413   F51  C~1w3o      
2011 10  25.44144  04 52 15.648  +23 15 42.87  22.9w 11UK413   F51  C~1w3o      
2011 10  25.45588  04 52 15.605  +23 15 42.76  22.5w 11UK413   F51  C~1w3o      
2011 10  25.47033  04 52 15.535  +23 15 42.58  22.8w 11UK413   F51  C~1w3o      
2011 11  24.55209  04 49 55.644  +23 10 31.59  22.5r 11UK413   F51  C~1w3o      
2011 11  24.56387  04 49 55.573  +23 10 31.39  21.9r 11UK413   F51  C~1w3o      
2011 11  30.31306  04 49 24.780  +23 09 21.93  22.0i 11UK413   F51  C~1w3o      
2011 11  30.32565  04 49 24.705  +23 09 21.99  22.2i 11UK413   F51  C~1w3o      
2013 11  27.36249  05 01 34.964  +22 48 49.88  22.3w 11UK413   F51  C~1w3o      
2013 11  27.37773  05 01 34.895  +22 48 49.80  22.1w 11UK413   F51  C~1w3o      
2013 11  27.39294  05 01 34.805  +22 48 49.43  22.2w 11UK413   F51  C~1w3o      
2013 11  27.40829  05 01 34.730  +22 48 49.47  22.0w 11UK413   F51  C~1w3o      

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    -0.22       0.00     0.12
  2   0.0002      0.00     0.20       0.00    -0.20
  3   6.9604      0.00     0.04       0.00     0.02
  4   6.9604      0.00    -0.08       0.00    -0.01
  5   6.9605      0.00     0.23       0.00     0.01
  6   6.9605      0.00     0.20       0.00     0.03
  7   6.9796      0.00     0.03       0.00     0.33
  8   7.9183      0.00    -0.14       0.00    -0.03
  9   7.9183      0.00    -0.09       0.00     0.02
 10   7.9184      0.00     0.09       0.00     0.03
 11   7.9184      0.00    -0.14       0.00    -0.03
 12   8.0008      0.00    -0.01       0.00     0.10
 13   8.0008      0.00    -0.12       0.00     0.04
 14   8.0165      0.00    -0.04       0.00    -0.27
 15   8.0166      0.00    -0.13       0.00    -0.06
 16  10.0098      0.00    -0.09       0.00    -0.03
 17  10.0099      0.00     0.10       0.00     0.05
 18  10.0099      0.00    -0.02       0.00    -0.17
 19  10.0100      0.00     0.10       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.

11UK413    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.911    41.911    41.911
ecceobj         0.094     0.094     0.094
incobj         13.594    13.594    13.594
qmin           37.307    37.306    37.307
qmax           46.206    46.205    46.211
amean          41.618    41.618    41.618
amin           41.279    41.278    41.280
amax           41.970    41.973    41.969
emean           0.091     0.091     0.091
emin            0.081     0.081     0.081
emax            0.101     0.101     0.101
imean          15.397    15.398    15.397
imin           14.581    14.587    14.580
imax           16.157    16.157    16.158
excite_mean     0.281     0.281     0.281
fracstop        1.000     1.000     1.000
cjmean          2.981     2.981     2.981

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       184.5     184.7     184.5
kozaiamp        180.0     179.9     180.0