Orbit Fit and Astrometric record for 14DM143

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: 14DM143   
# Created Wed Oct 17 01:09:31 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   24 observations of   24
# Arc:  13.19y
# First observation: 2002/03/12
#  Last observation: 2015/05/21
# Chi-squared of fit:     8.70 DOF:   42 RMS:  0.11
# Min/Max residuals:    -0.25    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.353033E-05  1.807753E-02 -1.506544E-06 -1.245657E-03  2.099755E-02 -5.906954E-04
# Covariance matrix:
  4.8942E-13 -7.9962E-14 -7.5115E-16  2.8013E-15 -4.6949E-14 -1.7555E-13
 -7.9962E-14  1.7019E-13  3.1229E-15 -1.1467E-14  1.8674E-13  7.1753E-13
 -7.5115E-16  3.1229E-15  4.7952E-13 -3.9431E-14  1.2578E-15  1.3516E-14
  2.8013E-15 -1.1467E-14 -3.9431E-14  4.4411E-15 -1.2019E-14 -4.9430E-14
 -4.6949E-14  1.8674E-13  1.2578E-15 -1.2019E-14  4.2478E-13  7.9867E-13
 -1.7555E-13  7.1753E-13  1.3516E-14 -4.9430E-14  7.9867E-13  3.0917E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   10.224418  178.997702    0.124059    0.174950   -0.970449  2452345.793765
# Heliocentric elements and errors
Epoch:              2452346.5000  =  2002/03/13
Mean Anomaly:          202.83773 +/-     0.066
Argument of Peri:      271.99291 +/-     0.061
Long of Asc Node:       67.19295 +/-     0.001
Inclination:            10.76136 +/-     0.000
Eccentricity:         0.08730246 +/-    0.0001
Semi-Major Axis:     44.93342361 +/-    0.0040
Time of Perihelion: 2500374.9416 +/-      21.9
Perihelion:          41.01062517 +/-    0.0045
Aphelion:            48.85622205 +/-    0.0051
Period (y)              301.2052 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -47.84401333 +/-    0.0015
Ecliptic Y            0.96603383 +/-    0.0000
Ecliptic Z            8.45351488 +/-    0.0003
Ecliptic XDOT        -0.00000270 +/-    0.0000
Ecliptic YDOT        -0.00235864 +/-    0.0000
Ecliptic ZDOT        -0.00017330 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.59471915 +/-    0.0014
Geocenter to KBO     47.62466092 +/-    0.0015
# Hcoef:  5.50

The following table shows the complete astrometric record for 14DM143. 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 (14DM143) followed by the observatory code and reference code for the source of the astrometry.

2002 03  12.293022 12 12 45.22   +09 46 14.3   22.1V 14DM143   645  C~2hhy      
2002 03  12.293851 12 12 45.20   +09 46 14.2   21.7V 14DM143   645  C~2hhy      
2002 03  12.296339 12 12 45.21   +09 46 14.2   22.7V 14DM143   645  C~2hhy      
2013 04  11.37053  12 51 35.956  +04 29 58.20  22.6w 14DM143   F51  C~1vXH      
2013 04  11.38421  12 51 35.879  +04 29 58.58  22.7w 14DM143   F51  C~1vXH      
2013 04  11.41167  12 51 35.762  +04 29 59.14  22.4w 14DM143   F51  C~1vXH      
2014 02  26.57050  12 58 03.233  +03 40 37.18  22.3w 14DM143   F51  C~1vXH      
2014 02  26.58272  12 58 03.207  +03 40 37.39  22.4w 14DM143   F51  C~1vXH      
2014 02  26.59498  12 58 03.168  +03 40 37.58  22.6w 14DM143   F51  C~1vXH      
2014 02  26.60722  12 58 03.130  +03 40 38.20  22.6w 14DM143   F51  C~1vXH      
2014 02  27.49408  12 58 00.433  +03 41 00.90  22.3w 14DM143   F51  C~1vXH      
2014 02  27.50634  12 58 00.399  +03 41 01.06  22.3w 14DM143   F51  C~1vXH      
2014 02  27.51865  12 58 00.361  +03 41 01.49  22.2w 14DM143   F51  C~1vXH      
2014 02  27.53098  12 58 00.306  +03 41 01.73  22.7w 14DM143   F51  C~1vXH      
2014 03  24.44622  12 56 31.350  +03 51 54.51  22.3w 14DM143   F51  C~1vXH      
2014 03  24.45973  12 56 31.279  +03 51 54.77  22.2w 14DM143   F51  C~1vXH      
2014 03  24.48684  12 56 31.169  +03 51 55.31  22.2w 14DM143   F51  C~1vXH      
2015 01  21.61154  13 02 51.392  +02 57 27.56  22.4w 14DM143   F51  C~1vXH      
2015 01  21.62382  13 02 51.402  +02 57 27.64  22.6w 14DM143   F51  C~1vXH      
2015 01  21.63611  13 02 51.384  +02 57 27.80  22.7w 14DM143   F51  C~1vXH      
2015 01  21.64844  13 02 51.375  +02 57 28.07  22.3w 14DM143   F51  C~1vXH      
2015 05  21.27147  12 56 43.593  +03 38 21.79  22.6w 14DM143   F51  C~1vXH      
2015 05  21.28577  12 56 43.556  +03 38 22.03  22.4w 14DM143   F51  C~1vXH      
2015 05  21.30010  12 56 43.521  +03 38 22.05  22.6w 14DM143   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     0.11       0.00     0.08
  2   0.0000      0.00    -0.14       0.00    -0.04
  3   0.0000      0.00     0.16       0.00    -0.11
  4  11.0830      0.00     0.30       0.00    -0.01
  5  11.0831      0.00    -0.02       0.00     0.07
  6  11.0831      0.00    -0.10       0.00     0.02
  7  11.9624      0.00    -0.10       0.00    -0.03
  8  11.9625      0.00     0.08       0.00    -0.13
  9  11.9625      0.00     0.06       0.00    -0.25
 10  11.9625      0.00     0.06       0.00     0.06
 11  11.9650      0.00     0.10       0.00     0.11
 12  11.9650      0.00     0.17       0.00    -0.05
 13  11.9650      0.00     0.18       0.00     0.07
 14  11.9651      0.00    -0.06       0.00    -0.01
 15  12.0333      0.00     0.17       0.00     0.12
 16  12.0333      0.00    -0.08       0.00     0.03
 17  12.0334      0.00    -0.10       0.00    -0.13
 18  12.8633      0.00    -0.13       0.00     0.02
 19  12.8633      0.00     0.12       0.00    -0.07
 20  12.8634      0.00    -0.04       0.00    -0.08
 21  12.8634      0.00    -0.07       0.00     0.02
 22  13.1909      0.00    -0.01       0.00    -0.08
 23  13.1909      0.00     0.03       0.00     0.07
 24  13.1910      0.00     0.10       0.00    -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.

14DM143    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.660    44.660    44.660
ecceobj         0.094     0.094     0.094
incobj         10.763    10.763    10.763
qmin           40.223    40.222    40.224
qmax           49.854    49.854    49.854
amean          44.916    44.916    44.916
amin           44.553    44.551    44.558
amax           45.301    45.300    45.304
emean           0.088     0.088     0.088
emin            0.074     0.074     0.074
emax            0.101     0.101     0.101
imean           9.216     9.216     9.216
imin            8.751     8.751     8.753
imax            9.744     9.745     9.743
excite_mean     0.183     0.183     0.183
fracstop        1.000     1.000     1.000
cjmean          3.072     3.072     3.072

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       182.9     182.9     182.9
kozaiamp        179.9     180.0     180.0