Orbit Fit and Astrometric record for 14DH143

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: 14DH143   
# Created Sun Oct 21 01:09:25 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   37 observations of   37
# Arc:  12.98y
# First observation: 2002/03/05
#  Last observation: 2015/02/27
# Chi-squared of fit:    20.75 DOF:   68 RMS:  0.13
# Min/Max residuals:    -0.27    0.43
# Exact a, adot, b, bdot, g, gdot:
  1.415428E-05  2.290418E-02  5.309439E-07  1.114171E-03  2.502840E-02 -2.267919E-03
# Covariance matrix:
  6.4654E-13 -1.5985E-13  1.1770E-14 -6.1688E-15 -1.4640E-13 -3.5482E-13
 -1.5985E-13  5.9406E-14 -5.1483E-15  2.6748E-15  6.0397E-14  1.5387E-13
  1.1770E-14 -5.1483E-15  3.4487E-13 -2.9353E-14 -3.7930E-15 -1.4042E-14
 -6.1688E-15  2.6748E-15 -2.9353E-14  2.8772E-15  2.7952E-15  7.2663E-15
 -1.4640E-13  6.0397E-14 -3.7930E-15  2.7952E-15  1.7238E-13  1.6020E-13
 -3.5482E-13  1.5387E-13 -1.4042E-14  7.2663E-15  1.6020E-13  4.1801E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.660247  171.529465    0.116466    0.062771   -0.982493  2452338.749932
# Heliocentric elements and errors
Epoch:              2452338.5000  =  2002/03/05
Mean Anomaly:          224.64946 +/-     0.018
Argument of Peri:      198.39579 +/-     0.013
Long of Asc Node:      119.27400 +/-     0.002
Inclination:             4.52455 +/-     0.000
Eccentricity:         0.15458715 +/-    0.0000
Semi-Major Axis:     36.55036505 +/-    0.0018
Time of Perihelion: 2482683.9444 +/-       5.4
Perihelion:          30.90014815 +/-    0.0018
Aphelion:            42.20058195 +/-    0.0023
Period (y)              220.9763 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.39385286 +/-    0.0007
Ecliptic Y            6.13854573 +/-    0.0001
Ecliptic Z            2.55073103 +/-    0.0000
Ecliptic XDOT        -0.00012493 +/-    0.0000
Ecliptic YDOT        -0.00251675 +/-    0.0000
Ecliptic ZDOT         0.00010601 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.93722002 +/-    0.0006
Geocenter to KBO     39.95470547 +/-    0.0007
# Hcoef:  6.58

The following table shows the complete astrometric record for 14DH143. 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 (14DH143) followed by the observatory code and reference code for the source of the astrometry.

2002 03  05.249189 11 34 41.09   +06 43 17.8   23.1V 14DH143   645  C~2hhy      
2002 03  05.250018 11 34 41.09   +06 43 18.0   22.8V 14DH143   645  C~2hhy      
2006 01  07.517092 11 57 31.71   +04 26 42.1   22.9V 14DH143   645  C~2hhy      
2006 01  07.517921 11 57 31.73   +04 26 42.3   22.5V 14DH143   645  C~2hhy      
2006 01  07.520409 11 57 31.71   +04 26 42.1   23.8V 14DH143   645  C~2hhy      
2007 04  15.209389 11 56 36.69   +04 40 53.1   22.6V 14DH143   645  C~2hhy      
2007 04  15.210219 11 56 36.70   +04 40 53.0   22.4V 14DH143   645  C~2hhy      
2012 02  28.50919  12 25 32.571  +01 49 10.53  22.6w 14DH143   F51  C~1vXH      
2012 02  28.52356  12 25 32.509  +01 49 10.89  22.8w 14DH143   F51  C~1vXH      
2012 02  28.53794  12 25 32.437  +01 49 11.23  22.5w 14DH143   F51  C~1vXH      
2013 03  19.48615  12 29 15.325  +01 28 56.78  22.7w 14DH143   F51  C~1vXH      
2013 03  19.50147  12 29 15.215  +01 28 57.35  22.5w 14DH143   F51  C~1vXH      
2013 03  19.51689  12 29 15.156  +01 28 57.76  22.7w 14DH143   F51  C~1vXH      
2013 03  19.53232  12 29 15.076  +01 28 58.54  22.4w 14DH143   F51  C~1vXH      
2014 02  26.51444  12 36 00.683  +00 47 06.23  22.9w 14DH143   F51  C~1vXH      
2014 02  26.52680  12 36 00.638  +00 47 06.70  22.8w 14DH143   F51  C~1vXH      
2014 02  26.53917  12 36 00.593  +00 47 07.04  22.6w 14DH143   F51  C~1vXH      
2014 02  26.55154  12 36 00.526  +00 47 07.24  22.7w 14DH143   F51  C~1vXH      
2014 04  29.25692  12 31 22.726  +01 17 23.93  22.5w 14DH143   F51  C~1vXH      
2014 04  29.26880  12 31 22.665  +01 17 24.36  22.4w 14DH143   F51  C~1vXH      
2014 04  29.28070  12 31 22.618  +01 17 24.30  22.6w 14DH143   F51  C~1vXH      
2014 05  27.30732  12 29 54.394  +01 24 42.52  22.4w 14DH143   F51  C~1vXH      
2014 05  27.31982  12 29 54.369  +01 24 42.71  22.7w 14DH143   F51  C~1vXH      
2014 05  27.33234  12 29 54.346  +01 24 42.80  22.8w 14DH143   F51  C~1vXH      
2015 01  23.55921  12 42 44.330  +00 03 04.36  22.5w 14DH143   F51  C~1vXH      
2015 01  23.57460  12 42 44.304  +00 03 04.90  22.6w 14DH143   F51  C~1vXH      
2015 01  23.58999  12 42 44.284  +00 03 05.07  22.8w 14DH143   F51  C~1vXH      
2015 01  25.53614  12 42 41.818  +00 03 35.03  22.4w 14DH143   F51  C~1vXH      
2015 01  25.55148  12 42 41.794  +00 03 35.03  22.9w 14DH143   F51  C~1vXH      
2015 01  25.58211  12 42 41.747  +00 03 35.48  22.5w 14DH143   F51  C~1vXH      
2015 02  16.50772  12 41 51.104  +00 11 20.81  22.5w 14DH143   F51  C~1vXH      
2015 02  16.52041  12 41 51.082  +00 11 20.98  22.5w 14DH143   F51  C~1vXH      
2015 02  16.53309  12 41 51.024  +00 11 21.53  22.2w 14DH143   F51  C~1vXH      
2015 02  16.54578  12 41 51.002  +00 11 21.78  22.7w 14DH143   F51  C~1vXH      
2015 02  27.54764  12 41 12.004  +00 16 26.09  23.0w 14DH143   F51  C~1vXH      
2015 02  27.56017  12 41 11.951  +00 16 26.59  22.9w 14DH143   F51  C~1vXH      
2015 02  27.58524  12 41 11.861  +00 16 27.40  22.7w 14DH143   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     0.07       0.00     0.01
  2   0.0000      0.00     0.13       0.00     0.18
  3   3.8447      0.00    -0.21       0.00    -0.16
  4   3.8447      0.00     0.10       0.00     0.03
  5   3.8447      0.00    -0.17       0.00    -0.20
  6   5.1115      0.00    -0.24       0.00     0.01
  7   5.1115      0.00    -0.04       0.00    -0.11
  8   9.9857      0.00     0.14       0.00     0.16
  9   9.9857      0.00     0.11       0.00     0.08
 10   9.9857      0.00    -0.07       0.00    -0.01
 11  11.0397      0.00     0.43       0.00    -0.01
 12  11.0397      0.00    -0.12       0.00     0.07
 13  11.0397      0.00     0.10       0.00    -0.01
 14  11.0398      0.00     0.00       0.00     0.28
 15  11.9816      0.00     0.10       0.00    -0.03
 16  11.9816      0.00     0.16       0.00     0.08
 17  11.9816      0.00     0.23       0.00     0.06
 18  11.9817      0.00    -0.04       0.00    -0.11
 19  12.1506      0.00     0.21       0.00     0.03
 20  12.1506      0.00     0.02       0.00     0.19
 21  12.1507      0.00     0.05       0.00    -0.14
 22  12.2274      0.00    -0.15       0.00    -0.03
 23  12.2274      0.00    -0.11       0.00     0.06
 24  12.2275      0.00    -0.04       0.00     0.05
 25  12.8879      0.00    -0.01       0.00    -0.13
 26  12.8880      0.00    -0.10       0.00     0.18
 27  12.8880      0.00    -0.11       0.00     0.13
 28  12.8933      0.00     0.04       0.00     0.17
 29  12.8934      0.00     0.01       0.00    -0.07
 30  12.8935      0.00    -0.03       0.00    -0.11
 31  12.9535      0.00    -0.27       0.00    -0.04
 32  12.9535      0.00     0.02       0.00    -0.20
 33  12.9535      0.00    -0.23       0.00     0.02
 34  12.9536      0.00     0.06       0.00    -0.06
 35  12.9837      0.00    -0.07       0.00    -0.22
 36  12.9837      0.00    -0.12       0.00    -0.08
 37  12.9838      0.00     0.02       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.

14DH143    quality flag:3

Type:           4:3E      4:3E      4:3E

axisobj        36.355    36.355    36.355
ecceobj         0.160     0.160     0.160
incobj          4.531     4.531     4.531
qmin           29.939    29.938    29.939
qmax           43.271    43.274    43.268
amean          36.477    36.477    36.477
amin           36.135    36.135    36.134
amax           36.854    36.854    36.855
emean           0.157     0.157     0.157
emin            0.137     0.137     0.137
emax            0.176     0.176     0.176
imean           3.969     3.969     3.969
imin            2.074     2.074     2.074
imax            5.905     5.903     5.906
excite_mean     0.173     0.173     0.173
fracstop        1.000     1.000     1.000
cjmean          2.993     2.993     2.993

libcent 0       180.2     179.9     180.4
libamp  0        51.5      51.6      51.3
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       180.2     180.1     180.2
kozaiamp        180.0     180.0     180.0