Orbit Fit and Astrometric record for 14WT509

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: 14WT509   
# Created Mon Dec 18 02:38:07 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   21
# Arc:   4.27y
# First observation: 2010/10/09
#  Last observation: 2015/01/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000410   0.034042   0.000012  -0.004696   0.030470   0.000000
# Chi-squared of fit:     5.09 DOF:   34 RMS:  0.09
# Min/Max residuals:    -0.18    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.866078E-05  3.370036E-02 -2.862200E-06 -4.682138E-03  2.881864E-02  9.393978E-04
# Covariance matrix:
  3.5526E-13 -6.4373E-13 -3.4800E-14  8.7842E-14 -4.0651E-13 -4.1166E-12
 -6.4373E-13  4.2963E-12  2.5943E-13 -6.2019E-13  3.8487E-12  2.8802E-11
 -3.4800E-14  2.5943E-13  2.5640E-13 -9.8861E-14  2.3548E-13  1.7453E-12
  8.7842E-14 -6.2019E-13 -9.8861E-14  1.1271E-13 -5.4737E-13 -4.1975E-12
 -4.0651E-13  3.8487E-12  2.3548E-13 -5.4737E-13  3.8609E-12  2.5296E-11
 -4.1166E-12  2.8802E-11  1.7453E-12 -4.1975E-12  2.5296E-11  1.9514E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -9.478652   51.967192    0.584349   -0.132691   -0.794646  2455478.934326
# Heliocentric elements and errors
Epoch:              2455470.5000  =  2010/10/01
Mean Anomaly:            1.92289 +/-     0.065
Argument of Peri:      225.95491 +/-     0.114
Long of Asc Node:      182.28883 +/-     0.001
Inclination:            12.24519 +/-     0.000
Eccentricity:         0.25767860 +/-    0.0001
Semi-Major Axis:     47.80705968 +/-    0.0093
Time of Perihelion: 2454825.6072 +/-      21.8
Perihelion:          35.48820350 +/-    0.0083
Aphelion:            60.12591585 +/-    0.0126
Period (y)              330.5569 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           22.04739503 +/-    0.0014
Ecliptic Y           27.23209170 +/-    0.0018
Ecliptic Z           -5.71445797 +/-    0.0004
Ecliptic XDOT        -0.00251255 +/-    0.0000
Ecliptic YDOT         0.00199056 +/-    0.0000
Ecliptic ZDOT        -0.00045345 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.50111936 +/-    0.0017
Geocenter to KBO     34.69976068 +/-    0.0024
# Hcoef:  6.94

The following table shows the complete astrometric record for 14WT509. 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 (14WT509) followed by the observatory code and reference code for the source of the astrometry.

2010 10  09.43356  03 28 04.116  +09 05 15.22  22.9w 14WT509   F51  C~1vXs      
2010 10  09.44964  03 28 04.052  +09 05 14.53  22.8w 14WT509   F51  C~1vXs      
2010 10  09.46578  03 28 03.989  +09 05 14.28  22.7w 14WT509   F51  C~1vXs      
2010 10  09.48308  03 28 03.917  +09 05 13.74  22.5w 14WT509   F51  C~1vXs      
2011 11  25.43770  03 31 59.777  +08 58 32.06  22.5w 14WT509   F51  C~1vXs      
2011 11  25.45497  03 31 59.682  +08 58 31.80  22.4w 14WT509   F51  C~1vXs      
2011 11  25.47003  03 31 59.602  +08 58 31.53  22.6w 14WT509   F51  C~1vXs      
2011 11  25.48458  03 31 59.516  +08 58 31.18  22.4w 14WT509   F51  C~1vXs      
2014 11  20.47839  03 56 05.092  +09 35 45.50  22.7w 14WT509   F51  C~1vXs      
2014 11  20.48965  03 56 05.043  +09 35 45.21  22.3w 14WT509   F51  C~1vXs      
2014 11  20.50087  03 56 04.979  +09 35 45.03  22.3w 14WT509   F51  C~1vXs      
2014 11  20.51207  03 56 04.907  +09 35 44.78  22.3w 14WT509   F51  C~1vXs      
2014 11  21.37727  03 56 00.125  +09 35 27.82  22.3w 14WT509   F51  C~1vXs      
2014 11  21.38932  03 56 00.051  +09 35 27.49  22.6w 14WT509   F51  C~1vXs      
2014 11  21.40143  03 55 59.970  +09 35 27.08  22.4w 14WT509   F51  C~1vXs      
2015 01  15.33153  03 51 46.784  +09 27 56.76  22.5w 14WT509   F51  C~1vXs      
2015 01  15.35494  03 51 46.709  +09 27 57.16  22.5w 14WT509   F51  C~1vXs      
2015 01  15.36667  03 51 46.679  +09 27 57.15  22.5w 14WT509   F51  C~1vXs      
2015 01  17.30647  03 51 41.664  +09 28 07.33  22.5w 14WT509   F51  C~1vXs      
2015 01  17.32025  03 51 41.630  +09 28 07.56  22.6w 14WT509   F51  C~1vXs      
2015 01  17.33410  03 51 41.642  +09 28 07.68  22.8w 14WT509   F51  C~1vXs      

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    -0.04       0.00     0.06
  2   0.0000     -1.09    -0.06      -0.43    -0.18
  3   0.0001     -2.06     0.03      -0.44     0.00
  4   0.0001     -3.22     0.01      -0.70    -0.05
  5   1.1280   3283.80    -0.01   -1252.70     0.01
  6   1.1281   3282.38     0.02   -1252.60     0.08
  7   1.1281   3281.16     0.08   -1252.57     0.10
  8   1.1281   3279.84    -0.01   -1252.60     0.06
  9   4.1151  24718.31    -0.17   -4180.46     0.02
 10   4.1151  24717.53     0.03   -4180.57    -0.09
 11   4.1152  24716.55     0.03   -4180.53    -0.04
 12   4.1152  24715.44    -0.10   -4180.53    -0.04
 13   4.1176  24641.66     0.23   -4180.76     0.06
 14   4.1176  24640.50     0.12   -4180.83    -0.01
 15   4.1176  24639.22    -0.10   -4180.95    -0.14
 16   4.2680  20844.06     0.04   -3749.19    -0.11
 17   4.2681  20843.07    -0.03   -3748.54     0.21
 18   4.2681  20842.63    -0.01   -3748.45     0.14
 19   4.2734  20772.07    -0.05   -3721.12    -0.11
 20   4.2735  20771.63     0.01   -3720.78     0.03
 21   4.2735  20771.83 (   0.71)  -3720.70 (  -0.09)

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.

14WT509    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        48.087    48.112    48.062
ecceobj         0.262     0.262     0.261
incobj         12.233    12.233    12.233
qmin           34.097    33.264    34.873
qmax           62.432    63.371    61.644
amean          47.796    47.796    47.796
amin           47.159    47.174    47.161
amax           48.526    48.528    48.541
emean           0.259     0.255     0.254
emin            0.228     0.205     0.234
emax            0.288     0.306     0.272
imean          11.505    11.780    12.142
imin            9.999     8.884    11.656
imax           12.551    14.160    12.739
excite_mean     0.327     0.329     0.330
fracstop        1.000     1.000     1.000
cjmean          3.014     3.012     3.012

libcent 0       180.4      95.7     179.5
libamp  0       149.6      61.9     153.4
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       212.7     270.5     215.2
kozaiamp        179.9      54.6     180.0