Orbit Fit and Astrometric record for 14DF143

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: 14DF143   
# Created Tue Dec 19 02:37:59 2017
# Orbit generated from Bernstein formalism
# Fitting   50 observations of   52
# Arc:  11.20y
# First observation: 2004/03/13
#  Last observation: 2015/05/24
Preliminary a, adot, b, bdot, g, gdot:
   0.000128   0.021879  -0.000071  -0.008449   0.024363   0.000000
# Chi-squared of fit:    18.41 DOF:   94 RMS:  0.11
# Min/Max residuals:    -0.39    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.474800E-05  2.187326E-02 -6.659024E-06 -8.467893E-03  2.418574E-02  1.231886E-03
# Covariance matrix:
  7.0262E-13 -1.4556E-13 -6.0372E-14  3.5338E-14 -8.5309E-14 -3.3694E-13
 -1.4556E-13  6.6495E-14  3.9994E-14 -2.3534E-14  7.5201E-14  2.2518E-13
 -6.0372E-14  3.9994E-14  5.8509E-13 -7.0675E-14  4.7080E-14  1.4841E-13
  3.5338E-14 -2.3534E-14 -7.0675E-14  1.4868E-14 -2.8231E-14 -8.7290E-14
 -8.5309E-14  7.5201E-14  4.7080E-14 -2.8231E-14  1.6840E-13  2.7352E-13
 -3.3694E-13  2.2518E-13  1.4841E-13 -8.7290E-14  2.7352E-13  8.3501E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   11.415659 -170.706499    0.275883    0.188260   -0.932085  2453077.809593
# Heliocentric elements and errors
Epoch:              2453070.5000  =  2004/03/06
Mean Anomaly:           70.42700 +/-     0.038
Argument of Peri:       75.06326 +/-     0.045
Long of Asc Node:       35.62180 +/-     0.000
Inclination:            23.69374 +/-     0.000
Eccentricity:         0.05166934 +/-    0.0000
Semi-Major Axis:     42.92105046 +/-    0.0022
Time of Perihelion: 2432977.6909 +/-      10.7
Perihelion:          40.70334791 +/-    0.0026
Aphelion:            45.13875302 +/-    0.0028
Period (y)              281.1990 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.98338302 +/-    0.0007
Ecliptic Y           -6.42460690 +/-    0.0001
Ecliptic Z            8.18330082 +/-    0.0001
Ecliptic XDOT         0.00007422 +/-    0.0000
Ecliptic YDOT        -0.00250306 +/-    0.0000
Ecliptic ZDOT        -0.00091187 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.28332614 +/-    0.0007
Geocenter to KBO     41.34668074 +/-    0.0007
# Hcoef:  5.50

The following table shows the complete astrometric record for 14DF143. 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 (14DF143) followed by the observatory code and reference code for the source of the astrometry.

2004 03  13.30885  12 52 08.56   +06 48 46.1   21.8R 14DF143   644  C~1vXG      
2004 03  13.38204  12 52 08.25   +06 48 47.8   21.7R 14DF143   644  C~1vXG      
2004 03  13.44903  12 52 07.97   +06 48 49.1   21.8R 14DF143   644  C~1vXG      
2011 04  21.44378  13 15 54.101  +00 30 04.35  21.5r 14DF143   F51  C~1vXG      
2011 04  21.45495  13 15 54.078  +00 30 04.57  21.1i 14DF143   F51  C~1vXG      
2011 04  21.46575  13 15 54.029  +00 30 04.61  21.2i 14DF143   F51  C~1vXG      
2012 04  15.37140  13 20 03.422  -00 27 39.02  21.9g 14DF143   F51  C~1vXG      
2012 04  15.47831  13 20 02.926  -00 27 36.66  21.7r 14DF143   F51  C~1vXG      
2012 04  15.48933  13 20 02.854  -00 27 36.58  21.6r 14DF143   F51  C~1vXG      
2013 04  11.37826  13 24 07.710  -01 25 00.02  21.6w 14DF143   F51  C~1vXG      
2013 04  11.39189  13 24 07.646  -01 24 59.55  21.5w 14DF143   F51  C~1vXG      
2013 04  11.40561  13 24 07.594  -01 24 59.30  21.7w 14DF143   F51  C~1vXG      
2013 04  11.41935  13 24 07.521  -01 24 59.01  21.6w 14DF143   F51  C~1vXG      
2013 05  03.37038  13 22 28.140  -01 17 43.88  21.7w 14DF143   F51  C~1vXG      
2013 05  03.38394  13 22 28.087  -01 17 43.61  21.7w 14DF143   F51  C~1vXG      
2013 05  03.39752  13 22 28.027  -01 17 43.53  21.7w 14DF143   F51  C~1vXG      
2013 05  03.41106  13 22 27.963  -01 17 43.20  21.7w 14DF143   F51  C~1vXG      
2014 02  28.50917  13 30 44.433  -02 36 35.52  21.7w 14DF143   F51  C~1vXG      
2014 02  28.52039  13 30 44.390  -02 36 35.26  21.7w 14DF143   F51  C~1vXG      
2014 02  28.53162  13 30 44.361  -02 36 35.01  21.7w 14DF143   F51  C~1vXG      
2014 02  28.54290  13 30 44.329  -02 36 34.84  21.8w 14DF143   F51  C~1vXG      
2014 05  04.35171  13 26 09.293  -02 13 07.52  21.8w 14DF143   F51  C~1vXG      
2014 05  04.36304  13 26 09.246  -02 13 07.25  21.7w 14DF143   F51  C~1vXG      
2014 05  04.37440  13 26 09.215  -02 13 06.83  21.8w 14DF143   F51  C~1vXG      
2014 05  04.38577  13 26 09.145  -02 13 06.95  21.7w 14DF143   F51  C~1vXG      
2014 05  18.28374  13 25 13.175  -02 09 52.29  21.8w 14DF143   F51  C~1vXG      
2014 05  18.29499  13 25 13.131  -02 09 52.17  21.7w 14DF143   F51  C~1vXG      
2014 05  18.30625  13 25 13.087  -02 09 52.01  21.6w 14DF143   F51  C~1vXG      
2014 05  18.31750  13 25 13.048  -02 09 51.89  21.8w 14DF143   F51  C~1vXG      
2014 06  29.27007  13 23 34.651  -02 09 15.40  21.9w 14DF143   F51  C~1vXG      
2014 06  29.28114  13 23 34.638  -02 09 15.41  22.0w 14DF143   F51  C~1vXG      
2014 06  29.29225  13 23 34.639  -02 09 15.52  22.0w 14DF143   F51  C~1vXG      
2014 06  29.30334  13 23 34.627  -02 09 15.56  21.9w 14DF143   F51  C~1vXG      
2015 01  23.60274  13 35 25.659  -03 39 03.38  21.9w 14DF143   F51  C~1vXG      
2015 01  23.61438  13 35 25.668  -03 39 03.45  21.8w 14DF143   F51  C~1vXG      
2015 01  23.62597  13 35 25.665  -03 39 03.34  21.7w 14DF143   F51  C~1vXG      
2015 01  23.63756  13 35 25.667  -03 39 03.14  21.9w 14DF143   F51  C~1vXG      
2015 01  25.59499  13 35 25.398  -03 38 54.42  22.0w 14DF143   F51  C~1vXG      
2015 01  25.60669  13 35 25.406  -03 38 54.45  21.8w 14DF143   F51  C~1vXG      
2015 01  25.61819  13 35 25.413  -03 38 54.34  21.8w 14DF143   F51  C~1vXG      
2015 01  25.62971  13 35 25.402  -03 38 54.34  21.7w 14DF143   F51  C~1vXG      
2015 03  21.47809  13 33 12.478  -03 24 24.11  21.7w 14DF143   F51  C~1vXG      
2015 03  21.50069  13 33 12.377  -03 24 23.64  21.9w 14DF143   F51  C~1vXG      
2015 03  21.51199  13 33 12.331  -03 24 23.32  21.9w 14DF143   F51  C~1vXG      
2015 04  21.40618  13 30 53.073  -03 12 47.47  21.6w 14DF143   F51  C~1vXG      
2015 04  21.41973  13 30 53.005  -03 12 47.04  21.9w 14DF143   F51  C~1vXG      
2015 04  21.43329  13 30 52.939  -03 12 46.93  21.7w 14DF143   F51  C~1vXG      
2015 04  21.44686  13 30 52.896  -03 12 46.78  21.9w 14DF143   F51  C~1vXG      
2015 05  24.31252  13 28 36.140  -03 04 11.29  21.6i 14DF143   F51  C~1vXG      
2015 05  24.32385  13 28 36.103  -03 04 11.25  21.2i 14DF143   F51  C~1vXG      
2015 05  24.33526  13 28 36.051  -03 04 11.17  21.4i 14DF143   F51  C~1vXH      
2015 05  24.34660  13 28 36.015  -03 04 11.15  21.5i 14DF143   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    -0.09       0.00     0.23
  2   0.0002     -4.91     0.20      -0.26    -0.02
  3   0.0004     -9.26 (   0.62)     -0.72 (  -0.46)
  4   7.1051  28846.67    -0.39  -12410.88    -0.12
  5   7.1051  28846.26     0.01  -12410.82     0.05
  6   7.1052  28845.56     0.10  -12411.08    -0.11
  7   8.0905  33791.72     0.03  -14131.05    -0.06
  8   8.0908  33783.73     0.11  -14131.84     0.04
  9   8.0908  33782.69    -0.10  -14132.20    -0.23
 10   9.0789  38698.54    -0.04  -15876.73    -0.25
 11   9.0789  38697.43    -0.10  -15876.68    -0.09
 12   9.0790  38696.58     0.10  -15876.76    -0.07
 13   9.0790  38695.42    -0.01  -15876.93    -0.14
 14   9.1391  37100.65    -0.12  -16069.91    -0.01
 15   9.1392  37099.79    -0.05  -16069.98     0.07
 16   9.1392  37098.90     0.00  -16070.27    -0.07
 17   9.1392  37097.85    -0.11  -16070.34     0.00
 18   9.9636  46210.21     0.13  -17528.04    -0.10
 19   9.9636  46209.48     0.01  -17528.06    -0.11
 20   9.9636  46208.95     0.09  -17527.99    -0.05
 21   9.9637  46208.42     0.17  -17528.03    -0.08
 22  10.1411  41658.65    -0.07  -17862.10     0.04
 23  10.1411  41657.86    -0.07  -17862.13     0.13
 24  10.1412  41657.24 (   0.10) -17861.92 (   0.47)
 25  10.1412  41656.29    -0.06  -17862.46     0.05
 26  10.1793  40774.08     0.10  -18017.22     0.03
 27  10.1793  40773.41     0.08  -18017.37     0.02
 28  10.1793  40772.71     0.05  -18017.49     0.04
 29  10.1794  40772.10     0.10  -18017.61     0.06
 30  10.2942  39354.11     0.00  -18577.93    -0.04
 31  10.2942  39353.93    -0.10  -18578.02     0.03
 32  10.2943  39353.99     0.05  -18578.12     0.09
 33  10.2943  39353.83    -0.02  -18578.23     0.14
 34  10.8646  51914.56    -0.18  -19395.17     0.11
 35  10.8646  51914.72     0.02  -19395.18     0.06
 36  10.8647  51914.63    -0.03  -19395.10     0.11
 37  10.8647  51914.57    -0.05  -19394.89     0.28
 38  10.8701  51906.83    -0.21  -19388.17     0.05
 39  10.8701  51906.96    -0.00  -19388.15     0.03
 40  10.8701  51907.01     0.13  -19388.00     0.14
 41  10.8701  51906.85     0.04  -19388.07     0.04
 42  11.0203  49593.88     0.09  -19361.48     0.02
 43  11.0204  49592.21     0.04  -19361.65    -0.06
 44  11.0204  49591.40     0.04  -19361.62     0.01
 45  11.1050  47273.72    -0.04  -19541.12    -0.05
 46  11.1050  47272.56    -0.17  -19541.12     0.07
 47  11.1051  47271.55    -0.13  -19541.42    -0.11
 48  11.1051  47270.87     0.23  -19541.53    -0.11
 49  11.1951  45077.46     0.05  -19877.98     0.08
 50  11.1951  45076.91     0.12  -19878.17     0.04
 51  11.1951  45076.13    -0.03  -19878.40    -0.06
 52  11.1952  45075.60     0.06  -19878.60    -0.12

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.

14DF143    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.478    42.485    42.472
ecceobj         0.050     0.050     0.050
incobj         23.787    23.787    23.787
qmin           40.022    40.046    39.972
qmax           45.564    45.613    45.575
amean          42.707    42.715    42.692
amin           42.382    42.368    42.359
amax           43.050    43.055    43.032
emean           0.047     0.047     0.048
emin            0.036     0.036     0.036
emax            0.059     0.059     0.060
imean          23.037    23.037    23.022
imin           22.670    22.671    22.669
imax           23.380    23.382    23.377
excite_mean     0.394     0.394     0.394
fracstop        1.000     1.000     1.000
cjmean          2.894     2.894     2.894

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       175.0     175.0     175.3
kozaiamp        179.9     180.0     180.0