Orbit Fit and Astrometric record for 14DK143

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: 14DK143   
# Created Tue Oct 24 01:38:20 2017
# Orbit generated from Bernstein formalism
# Fitting   42 observations of   42
# Arc:   4.14y
# First observation: 2011/05/01
#  Last observation: 2015/06/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000320   0.022723   0.000009   0.001123   0.023683   0.000000
# Chi-squared of fit:    24.96 DOF:   78 RMS:  0.14
# Min/Max residuals:    -0.33    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.512500E-05  2.316408E-02  1.388292E-06  1.137982E-03  2.426507E-02  3.850388E-03
# Covariance matrix:
  4.0928E-13 -3.2796E-13  8.4983E-15 -1.2436E-14 -1.8298E-13 -2.6627E-12
 -3.2796E-13  3.9434E-13 -1.2612E-14  1.7837E-14  2.0453E-13  3.9333E-12
  8.4983E-15 -1.2612E-14  2.2301E-13 -7.3074E-14 -5.6118E-15 -1.3834E-13
 -1.2436E-14  1.7837E-14 -7.3074E-14  2.8969E-14  9.9246E-15  1.9164E-13
 -1.8298E-13  2.0453E-13 -5.6118E-15  9.9246E-15  3.0622E-13  1.8093E-12
 -2.6627E-12  3.9333E-12 -1.3834E-13  1.9164E-13  1.8093E-12  4.3023E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   10.732680 -131.844537    0.136335    0.186430   -0.983868  2455682.925446
# Heliocentric elements and errors
Epoch:              2455680.5000  =  2011/04/29
Mean Anomaly:           81.23560 +/-     0.048
Argument of Peri:      335.10265 +/-     0.030
Long of Asc Node:      153.56176 +/-     0.002
Inclination:            10.87111 +/-     0.000
Eccentricity:         0.15966318 +/-    0.0003
Semi-Major Axis:     42.14728525 +/-    0.0051
Time of Perihelion: 2433127.8929 +/-      12.6
Perihelion:          35.41791560 +/-    0.0120
Aphelion:            48.87665489 +/-    0.0127
Period (y)              273.6293 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.77685027 +/-    0.0006
Ecliptic Y          -30.81918815 +/-    0.0007
Ecliptic Z            7.67479260 +/-    0.0002
Ecliptic XDOT         0.00167631 +/-    0.0000
Ecliptic YDOT        -0.00203781 +/-    0.0000
Ecliptic ZDOT         0.00020709 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.19334320 +/-    0.0006
Geocenter to KBO     41.21150055 +/-    0.0009
# Hcoef:  5.57

The following table shows the complete astrometric record for 14DK143. 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 (14DK143) followed by the observatory code and reference code for the source of the astrometry.

2011 05  01.42468  15 14 43.722  -06 54 30.46  21.8w 14DK143   F51  C~1vXH      
2011 05  01.43875  15 14 43.657  -06 54 30.11  21.9w 14DK143   F51  C~1vXH      
2011 05  01.45296  15 14 43.584  -06 54 29.79  21.6w 14DK143   F51  C~1vXH      
2012 04  21.48692  15 20 36.198  -07 15 13.39  22.0g 14DK143   F51  C~1vXH      
2012 04  21.49582  15 20 36.160  -07 15 13.76  22.1g 14DK143   F51  C~1vXH      
2012 04  21.50882  15 20 36.088  -07 15 13.03  21.7r 14DK143   F51  C~1vXH      
2012 04  21.51858  15 20 36.050  -07 15 12.86  21.6r 14DK143   F51  C~1vXH      
2013 04  17.51726  15 26 03.184  -07 33 44.13  21.5w 14DK143   F51  C~1vXH      
2013 04  17.53241  15 26 03.122  -07 33 43.69  21.9w 14DK143   F51  C~1vXH      
2013 04  17.54760  15 26 03.052  -07 33 43.29  21.7w 14DK143   F51  C~1vXH      
2013 04  17.56274  15 26 02.982  -07 33 43.11  21.6w 14DK143   F51  C~1vXH      
2013 05  12.43655  15 24 12.309  -07 24 53.37  21.6w 14DK143   F51  C~1vXH      
2013 05  12.44980  15 24 12.246  -07 24 53.03  21.7w 14DK143   F51  C~1vXH      
2013 05  12.46304  15 24 12.184  -07 24 52.78  21.8w 14DK143   F51  C~1vXH      
2013 05  12.47627  15 24 12.120  -07 24 52.59  21.8w 14DK143   F51  C~1vXH      
2014 02  28.55318  15 33 07.555  -08 07 40.09  21.4w 14DK143   F51  C~1vXH      
2014 02  28.56512  15 33 07.566  -08 07 40.19  21.5w 14DK143   F51  C~1vXH      
2014 02  28.57706  15 33 07.554  -08 07 39.82  21.6w 14DK143   F51  C~1vXH      
2014 02  28.58898  15 33 07.549  -08 07 39.70  21.5w 14DK143   F51  C~1vXH      
2014 05  04.44907  15 29 58.565  -07 44 14.27  21.8w 14DK143   F51  C~1vXH      
2014 05  04.46100  15 29 58.525  -07 44 14.07  21.7w 14DK143   F51  C~1vXH      
2014 05  04.47294  15 29 58.466  -07 44 13.74  21.8w 14DK143   F51  C~1vXH      
2014 05  04.48486  15 29 58.417  -07 44 13.63  22.0w 14DK143   F51  C~1vXH      
2014 05  08.42161  15 29 40.368  -07 42 54.93  21.2i 14DK143   F51  C~1vXH      
2014 05  08.43383  15 29 40.326  -07 42 54.96  21.4i 14DK143   F51  C~1vXH      
2014 05  08.44605  15 29 40.268  -07 42 54.64  21.3i 14DK143   F51  C~1vXH      
2014 05  08.45825  15 29 40.217  -07 42 54.54  21.6i 14DK143   F51  C~1vXH      
2014 05  10.41948  15 29 31.133  -07 42 17.09  21.1i 14DK143   F51  C~1vXH      
2014 05  10.43152  15 29 31.087  -07 42 16.65  20.9i 14DK143   F51  C~1vXH      
2014 05  10.44349  15 29 31.043  -07 42 16.36  21.0i 14DK143   F51  C~1vXH      
2014 05  10.45547  15 29 30.967  -07 42 16.05  21.4i 14DK143   F51  C~1vXH      
2014 06  29.36021  15 26 02.627  -07 33 21.32  21.8w 14DK143   F51  C~1vXH      
2014 06  29.37327  15 26 02.586  -07 33 21.22  21.9w 14DK143   F51  C~1vXH      
2014 06  29.38634  15 26 02.549  -07 33 21.24  21.8w 14DK143   F51  C~1vXH      
2014 06  29.39945  15 26 02.504  -07 33 21.31  21.9w 14DK143   F51  C~1vXH      
2015 05  21.37693  15 33 48.258  -07 55 32.28  21.8w 14DK143   F51  C~1vXH      
2015 05  21.38971  15 33 48.197  -07 55 32.16  21.7w 14DK143   F51  C~1vXH      
2015 05  21.40251  15 33 48.134  -07 55 31.93  21.8w 14DK143   F51  C~1vXH      
2015 05  21.41532  15 33 48.083  -07 55 31.72  21.9w 14DK143   F51  C~1vXH      
2015 06  23.35814  15 31 28.811  -07 50 00.55  21.8r 14DK143   F51  C~1vXH      
2015 06  23.37052  15 31 28.736  -07 50 00.38  21.9r 14DK143   F51  C~1vXH      
2015 06  23.38308  15 31 28.714  -07 50 00.46  21.9r 14DK143   F51  C~1vXH      

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    -0.13
  2   0.0000     -1.03    -0.01       0.08    -0.09
  3   0.0001     -2.16    -0.11       0.10    -0.11
  4   0.9748   5389.67     0.10     196.38     0.34
  5   0.9749   5389.22     0.26     195.88    -0.21
  6   0.9749   5387.99    -0.07     196.30     0.14
  7   0.9749   5387.40     0.02     196.31     0.11
  8   1.9633  10381.99     0.11     403.14     0.02
  9   1.9633  10380.98     0.10     403.33     0.11
 10   1.9634  10379.87    -0.01     403.44     0.13
 11   1.9634  10378.82    -0.07     403.34    -0.06
 12   2.0315   8647.92    -0.04     483.67     0.06
 13   2.0316   8646.92    -0.07     483.75     0.15
 14   2.0316   8645.96    -0.06     483.75     0.15
 15   2.0316   8644.99    -0.06     483.68     0.09
 16   2.8313  17029.95    -0.33      71.14    -0.06
 17   2.8313  17030.14    -0.00      71.09    -0.30
 18   2.8314  17029.87    -0.13      71.40    -0.16
 19   2.8314  17029.76    -0.09      71.50    -0.25
 20   3.0090  13937.14    -0.14     706.09    -0.06
 21   3.0090  13936.51     0.09     706.13    -0.04
 22   3.0090  13935.58     0.02     706.22     0.03
 23   3.0091  13934.84     0.14     706.14    -0.08
 24   3.0198  13654.08    -0.13     712.59     0.25
 25   3.0199  13653.48     0.16     712.40     0.05
 26   3.0199  13652.56     0.13     712.48     0.13
 27   3.0199  13651.80     0.26     712.38     0.02
 28   3.0253  13511.07    -0.05     713.52    -0.30
 29   3.0253  13510.30     0.05     713.77    -0.06
 30   3.0254  13509.59     0.21     713.88     0.05
 31   3.0254  13508.41    -0.09     713.88     0.06
 32   3.1620  10368.00    -0.10     423.02    -0.09
 33   3.1621  10367.38    -0.11     422.96    -0.01
 34   3.1621  10366.86    -0.04     422.79    -0.02
 35   3.1621  10366.23    -0.07     422.55    -0.11
 36   4.0546  17429.98     0.02     932.94    -0.05
 37   4.0547  17429.07     0.03     932.82    -0.13
 38   4.0547  17428.10    -0.01     932.80    -0.12
 39   4.0547  17427.31     0.12     932.81    -0.07
 40   4.1449  15329.26     0.17     718.75     0.21
 41   4.1450  15328.14    -0.30     718.62     0.22
 42   4.1450  15327.84     0.07     718.46     0.19

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.

14DK143    quality flag:3

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

axisobj        42.031    42.046    42.016
ecceobj         0.160     0.160     0.159
incobj         10.876    10.876    10.876
qmin           34.590    34.627    34.594
qmax           50.359    50.448    50.377
amean          42.328    42.328    42.328
amin           41.961    41.950    41.957
amax           42.749    42.752    42.752
emean           0.162     0.162     0.161
emin            0.143     0.143     0.142
emax            0.179     0.181     0.179
imean           9.914     9.906     9.915
imin            9.260     9.247     9.260
imax           10.673    10.679    10.674
excite_mean     0.236     0.236     0.236
fracstop        1.000     1.000     1.000
cjmean          3.016     3.016     3.016

libcent 0       179.9     180.3     180.6
libamp  0        35.5      41.3      36.2
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       187.7     187.0     187.7
kozaiamp        180.0     180.0     180.0