Orbit Fit and Astrometric record for 14WD509

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: 14WD509   
# Created Fri Dec 15 02:38:05 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   4.27y
# First observation: 2010/10/08
#  Last observation: 2015/01/14
Preliminary a, adot, b, bdot, g, gdot:
   0.000029   0.024013  -0.000000  -0.000496   0.025613   0.000000
# Chi-squared of fit:    10.94 DOF:   46 RMS:  0.11
# Min/Max residuals:    -0.22    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.597013E-05  2.356148E-02 -1.711282E-07 -4.941825E-04  2.405065E-02 -6.113144E-04
# Covariance matrix:
  2.0865E-13 -1.2728E-13 -1.3857E-16  1.6595E-15 -7.2857E-14 -8.0099E-13
 -1.2728E-13  1.4788E-12  2.6296E-15 -3.1108E-14  1.4465E-12  1.4994E-11
 -1.3857E-16  2.6296E-15  2.0458E-13 -5.0411E-14  2.5757E-15  2.7071E-14
  1.6595E-15 -3.1108E-14 -5.0411E-14  1.7768E-14 -2.7603E-14 -3.3071E-13
 -7.2857E-14  1.4465E-12  2.5757E-15 -2.7603E-14  1.8948E-12  1.3148E-11
 -8.0099E-13  1.4994E-11  2.7071E-14 -3.3071E-13  1.3148E-11  1.5997E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.573174   47.125682    0.529225   -0.008453   -0.843140  2455477.923476
# Heliocentric elements and errors
Epoch:              2455470.5000  =  2010/10/01
Mean Anomaly:          316.38201 +/-     0.356
Argument of Peri:      252.80603 +/-     0.412
Long of Asc Node:      201.43783 +/-     0.007
Inclination:             1.33050 +/-     0.000
Eccentricity:         0.05120720 +/-    0.0004
Semi-Major Axis:     44.00121917 +/-    0.0074
Time of Perihelion: 2468387.4089 +/-     105.4
Perihelion:          41.74804003 +/-    0.0201
Aphelion:            46.25439831 +/-    0.0204
Period (y)              291.8806 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.25382080 +/-    0.0016
Ecliptic Y           30.72655488 +/-    0.0017
Ecliptic Z           -0.41594366 +/-    0.0000
Ecliptic XDOT        -0.00201320 +/-    0.0000
Ecliptic YDOT         0.00177988 +/-    0.0000
Ecliptic ZDOT        -0.00005557 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.42735220 +/-    0.0017
Geocenter to KBO     41.57891871 +/-    0.0024
# Hcoef:  5.74

The following table shows the complete astrometric record for 14WD509. 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 (14WD509) followed by the observatory code and reference code for the source of the astrometry.

2010 10  08.42271  02 59 19.072  +16 23 54.84  22.3w 14WD509   F51  C~1vXq      
2010 10  08.44092  02 59 19.015  +16 23 54.45  22.2w 14WD509   F51  C~1vXq      
2010 10  08.46006  02 59 18.930  +16 23 54.21  21.9w 14WD509   F51  C~1vXq      
2010 10  09.42173  02 59 15.097  +16 23 37.30  22.2w 14WD509   F51  C~1vXq      
2010 10  09.43782  02 59 15.024  +16 23 37.01  22.2w 14WD509   F51  C~1vXq      
2010 10  09.45394  02 59 14.948  +16 23 36.68  22.2w 14WD509   F51  C~1vXq      
2010 10  09.47005  02 59 14.888  +16 23 36.48  22.2w 14WD509   F51  C~1vXq      
2013 11  24.31473  03 12 08.670  +17 10 50.26  22.2w 14WD509   F51  C~1vXq      
2013 11  24.32806  03 12 08.596  +17 10 50.03  22.0w 14WD509   F51  C~1vXq      
2013 11  24.34140  03 12 08.531  +17 10 49.92  22.0w 14WD509   F51  C~1vXq      
2014 11  18.50073  03 18 10.899  +17 32 36.53  22.0w 14WD509   F51  C~1vXq      
2014 11  18.51340  03 18 10.815  +17 32 36.05  21.9w 14WD509   F51  C~1vXq      
2014 11  18.52607  03 18 10.756  +17 32 35.80  21.8w 14WD509   F51  C~1vXq      
2014 11  18.53876  03 18 10.687  +17 32 35.82  21.9w 14WD509   F51  C~1vXq      
2014 11  28.47905  03 17 22.279  +17 29 29.35  22.1w 14WD509   F51  C~1vXq      
2014 11  28.49231  03 17 22.204  +17 29 28.96  22.1w 14WD509   F51  C~1vXq      
2014 11  28.50555  03 17 22.135  +17 29 28.59  22.1w 14WD509   F51  C~1vXq      
2014 11  28.51880  03 17 22.057  +17 29 28.41  21.9w 14WD509   F51  C~1vXq      
2015 01  11.33235  03 14 42.098  +17 19 25.14  21.9w 14WD509   F51  C~1vXq      
2015 01  11.34516  03 14 42.089  +17 19 25.10  21.8w 14WD509   F51  C~1vXq      
2015 01  11.35791  03 14 42.053  +17 19 25.12  22.0w 14WD509   F51  C~1vXq      
2015 01  11.37069  03 14 42.016  +17 19 24.74  22.3w 14WD509   F51  C~1vXq      
2015 01  14.32271  03 14 36.311  +17 19 04.67  22.2w 14WD509   F51  C~1vXq      
2015 01  14.33552  03 14 36.291  +17 19 04.63  22.2w 14WD509   F51  C~1vXq      
2015 01  14.34829  03 14 36.269  +17 19 04.54  22.2w 14WD509   F51  C~1vXq      
2015 01  14.36104  03 14 36.239  +17 19 04.30  22.2w 14WD509   F51  C~1vXq      

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    -0.10       0.00    -0.03
  2   0.0000     -0.90     0.11      -0.14    -0.17
  3   0.0001     -2.14     0.03      -0.03    -0.05
  4   0.0027    -59.83     0.11      -0.69    -0.01
  5   0.0028    -60.91     0.01      -0.67     0.01
  6   0.0028    -62.06    -0.14      -0.68     0.01
  7   0.0029    -62.94    -0.03      -0.63     0.07
  8   3.1291  11411.61     0.07    -325.81     0.13
  9   3.1291  11410.52    -0.05    -325.75     0.18
 10   3.1291  11409.59    -0.01    -325.60     0.32
 11   4.1125  16783.76     0.22    -428.83     0.09
 12   4.1125  16782.47    -0.13    -428.98    -0.06
 13   4.1125  16781.58    -0.07    -429.00    -0.08
 14   4.1126  16780.63    -0.07    -428.73     0.20
 15   4.1398  16058.96     0.25    -429.06     0.05
 16   4.1398  16057.82     0.06    -429.16    -0.05
 17   4.1399  16056.76    -0.04    -429.26    -0.15
 18   4.1399  16055.63    -0.22    -429.15    -0.04
 19   4.2598  13675.72    -0.13    -412.01    -0.10
 20   4.2599  13675.59     0.14    -412.01    -0.12
 21   4.2599  13675.09     0.05    -411.86     0.03
 22   4.2600  13674.48    -0.16    -412.08    -0.21
 23   4.2680  13590.02    -0.01    -409.91     0.02
 24   4.2681  13589.73     0.05    -409.87     0.04
 25   4.2681  13589.40     0.08    -409.88     0.03
 26   4.2681  13588.92    -0.05    -410.00    -0.10

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.

14WD509    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.189    44.210    44.168
ecceobj         0.054     0.055     0.053
incobj          1.327     1.327     1.327
qmin           40.513    40.482    40.518
qmax           47.385    47.441    47.309
amean          43.845    43.866    43.824
amin           43.514    43.522    43.480
amax           44.213    44.222    44.186
emean           0.056     0.057     0.056
emin            0.039     0.040     0.038
emax            0.072     0.073     0.072
imean           2.575     2.571     2.577
imin            1.778     1.782     1.772
imax            3.307     3.299     3.315
excite_mean     0.072     0.073     0.072
fracstop        1.000     1.000     1.000
cjmean          3.093     3.094     3.093

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       188.3     189.2     187.1
kozaiamp        180.0     180.0     180.0