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 Fri Dec 15 02:37:56 2017
# Orbit generated from Bernstein formalism
# Fitting   21 observations of   21
# Arc:   2.11y
# First observation: 2013/04/11
#  Last observation: 2015/05/21
Preliminary a, adot, b, bdot, g, gdot:
   0.000193   0.018125  -0.000009  -0.001843   0.020946   0.000000
# Chi-squared of fit:     6.68 DOF:   36 RMS:  0.10
# Min/Max residuals:    -0.21    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.249582E-05  1.834054E-02 -1.739142E-06 -1.858099E-03  2.118423E-02 -1.036171E-03
# Covariance matrix:
  4.8229E-13 -5.6754E-13 -1.6602E-14  3.9348E-14 -3.4212E-13 -9.0806E-12
 -5.6754E-13  1.1109E-12  4.4576E-14 -1.0958E-13  5.6532E-13  2.2554E-11
 -1.6602E-14  4.4576E-14  2.7456E-13 -1.8777E-13  2.3386E-14  1.0654E-12
  3.9348E-14 -1.0958E-13 -1.8777E-13  1.7800E-13 -5.4406E-14 -2.6218E-12
 -3.4212E-13  5.6532E-13  2.3386E-14 -5.4406E-14  5.7393E-13  1.3267E-11
 -9.0806E-12  2.2554E-11  1.0654E-12 -2.6218E-12  1.3267E-11  5.3781E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    9.236250 -169.906191   -0.199687    0.157930   -0.971000  2456393.871308
# Heliocentric elements and errors
Epoch:              2456390.5000  =  2013/04/08
Mean Anomaly:          216.24007 +/-     0.644
Argument of Peri:      271.91634 +/-     0.639
Long of Asc Node:       67.22651 +/-     0.006
Inclination:            10.76432 +/-     0.001
Eccentricity:         0.08902134 +/-    0.0006
Semi-Major Axis:     44.84428371 +/-    0.0068
Time of Perihelion: 2500192.5493 +/-     196.0
Perihelion:          40.85218536 +/-    0.0280
Aphelion:            48.83638206 +/-    0.0283
Period (y)              300.3093 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -46.80454582 +/-    0.0016
Ecliptic Y           -8.53294501 +/-    0.0003
Ecliptic Z            7.57660441 +/-    0.0003
Ecliptic XDOT         0.00050131 +/-    0.0000
Ecliptic YDOT        -0.00231690 +/-    0.0000
Ecliptic ZDOT        -0.00025838 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.17552899 +/-    0.0016
Geocenter to KBO     47.20493516 +/-    0.0017
# Hcoef:  5.54

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.

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     0.25       0.00     0.07
  2   0.0000     -1.21    -0.08      -0.10     0.02
  3   0.0001     -3.04    -0.14      -0.28    -0.05
  4   0.8794   6494.32    -0.13    -440.20    -0.07
  5   0.8794   6493.87     0.07    -440.16    -0.09
  6   0.8795   6493.26     0.11    -440.22    -0.21
  7   0.8795   6492.49    -0.02    -439.87     0.07
  8   0.8819   6446.40    -0.00    -434.95     0.13
  9   0.8820   6445.86     0.12    -435.00     0.02
 10   0.8820   6445.17     0.09    -434.83     0.13
 11   0.8820   6444.32    -0.10    -434.93    -0.04
 12   0.9502   4962.20     0.05    -360.24     0.17
 13   0.9503   4961.12    -0.14    -360.42    -0.01
 14   0.9504   4959.39    -0.10    -360.57    -0.16
 15   1.7803  11491.42    -0.12   -1114.55    -0.01
 16   1.7803  11491.53     0.15   -1114.41     0.01
 17   1.7803  11491.22     0.01   -1114.37    -0.07
 18   1.7804  11490.99    -0.06   -1114.18     0.01
 19   2.1079   5451.39    -0.00   -1035.11    -0.06
 20   2.1079   5450.78    -0.02   -1035.11     0.09
 21   2.1080   5450.29     0.07   -1035.29     0.04

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    44.678    44.642
ecceobj         0.094     0.095     0.093
incobj         10.763    10.764    10.763
qmin           40.222    40.177    40.237
qmax           49.848    49.927    49.813
amean          44.916    44.935    44.897
amin           44.558    44.572    44.538
amax           45.300    45.321    45.277
emean           0.088     0.089     0.087
emin            0.074     0.075     0.073
emax            0.101     0.102     0.101
imean           9.217     9.218     9.215
imin            8.754     8.750     8.751
imax            9.747     9.750     9.741
excite_mean     0.183     0.183     0.182
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       183.0     182.8     182.7
kozaiamp        180.0     179.9     180.0