Orbit Fit and Astrometric record for 14WU509

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: 14WU509   
# Created Tue Oct 24 01:38:30 2017
# Orbit generated from Bernstein formalism
# Fitting   36 observations of   37
# Arc:   4.19y
# First observation: 2010/12/05
#  Last observation: 2015/02/13
Preliminary a, adot, b, bdot, g, gdot:
  -0.000489   0.024162  -0.000011  -0.004002   0.025647   0.000000
# Chi-squared of fit:    15.28 DOF:   66 RMS:  0.12
# Min/Max residuals:    -0.26    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.537664E-05  2.386768E-02 -1.776610E-06 -3.960623E-03  2.474787E-02 -1.721611E-03
# Covariance matrix:
  3.6010E-13 -2.9275E-13 -1.1374E-14  3.6114E-14 -2.2130E-13 -2.0789E-12
 -2.9275E-13  3.8709E-13  1.9933E-14 -5.6600E-14  3.0985E-13  3.3026E-12
 -1.1374E-14  1.9933E-14  2.0462E-13 -5.8386E-14  8.6041E-15  1.9825E-13
  3.6114E-14 -5.6600E-14 -5.8386E-14  2.7502E-14 -4.5450E-14 -5.1267E-13
 -2.2130E-13  3.0985E-13  8.6041E-15 -4.5450E-14  3.7873E-13  2.4960E-12
 -2.0789E-12  3.3026E-12  1.9825E-13 -5.1267E-13  2.4960E-12  3.0287E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -17.690485   74.040237    0.013569   -0.299334   -0.938508  2455535.918376
# Heliocentric elements and errors
Epoch:              2455530.5000  =  2010/11/30
Mean Anomaly:          279.89365 +/-     0.034
Argument of Peri:      330.58038 +/-     0.036
Long of Asc Node:      193.03551 +/-     0.001
Inclination:            19.57806 +/-     0.000
Eccentricity:         0.07081166 +/-    0.0002
Semi-Major Axis:     41.64943362 +/-    0.0034
Time of Perihelion: 2477376.7308 +/-       9.0
Perihelion:          38.70016803 +/-    0.0101
Aphelion:            44.59869920 +/-    0.0102
Period (y)              268.7954 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           10.87264237 +/-    0.0002
Ecliptic Y           37.95553320 +/-    0.0009
Ecliptic Z          -12.27892358 +/-    0.0003
Ecliptic XDOT        -0.00262576 +/-    0.0000
Ecliptic YDOT         0.00042982 +/-    0.0000
Ecliptic ZDOT        -0.00035956 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.34741608 +/-    0.0009
Geocenter to KBO     40.40751912 +/-    0.0010
# Hcoef:  5.83

The following table shows the complete astrometric record for 14WU509. 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 (14WU509) followed by the observatory code and reference code for the source of the astrometry.

2010 12  05.41761  04 59 01.529  +04 54 29.63  21.8w 14WU509   F51  C~1vXs      
2010 12  05.43251  04 59 01.444  +04 54 29.68  21.9w 14WU509   F51  C~1vXs      
2010 12  05.44713  04 59 01.385  +04 54 29.48  22.0w 14WU509   F51  C~1vXs      
2010 12  05.46171  04 59 01.306  +04 54 29.40  22.2w 14WU509   F51  C~1vXs      
2011 10  23.45242  05 07 40.911  +05 03 43.67  22.2w 14WU509   F51  C~1vXs      
2011 10  23.46729  05 07 40.859  +05 03 43.34  22.1w 14WU509   F51  C~1vXs      
2011 10  23.48218  05 07 40.814  +05 03 43.09  21.9w 14WU509   F51  C~1vXs      
2011 10  23.49712  05 07 40.767  +05 03 42.99  21.9w 14WU509   F51  C~1vXs      
2012 12  09.36019  05 09 49.396  +04 44 26.61  22.4w 14WU509   F51  C~1vXs      
2012 12  09.39039  05 09 49.237  +04 44 26.57  22.4w 14WU509   F51  C~1vXs      
2012 12  09.40534  05 09 49.172  +04 44 26.20  22.3w 14WU509   F51  C~1vXs      
2014 02  28.24966  05 10 59.092  +04 53 22.51  22.2w 14WU509   F51  C~1vXs      
2014 02  28.25231  05 10 59.109  +04 53 22.37  22.3w 14WU509   F51  C~1vXs      
2014 02  28.26183  05 10 59.096  +04 53 22.69  22.1w 14WU509   F51  C~1vXs      
2014 02  28.26447  05 10 59.093  +04 53 22.87  22.3w 14WU509   F51  C~1vXs      
2014 02  28.27396  05 10 59.085  +04 53 23.16  22.3w 14WU509   F51  C~1vXs      
2014 02  28.28608  05 10 59.094  +04 53 23.54  22.3w 14WU509   F51  C~1vXs      
2014 02  28.28872  05 10 59.084  +04 53 23.29  22.6w 14WU509   F51  C~1vXs      
2014 11  20.52028  05 22 38.283  +04 38 16.08  21.8w 14WU509   F51  C~1vXs      
2014 11  20.53359  05 22 38.226  +04 38 15.80  21.9w 14WU509   F51  C~1vXs      
2014 11  20.54685  05 22 38.161  +04 38 15.51  21.9w 14WU509   F51  C~1vXs      
2014 11  20.56021  05 22 38.088  +04 38 15.46  22.3w 14WU509   F51  C~1vXs      
2014 12  16.40478  05 20 30.991  +04 33 27.59  21.9w 14WU509   F51  C~1vXs      
2014 12  16.41604  05 20 30.912  +04 33 27.84  21.7w 14WU509   F51  C~1vXs      
2014 12  16.42730  05 20 30.848  +04 33 27.89  21.9w 14WU509   F51  C~1vXs      
2014 12  16.43856  05 20 30.789  +04 33 27.83  21.7w 14WU509   F51  C~1vXs      
2015 01  15.37180  05 18 10.784  +04 34 46.83  21.9w 14WU509   F51  C~1vXs      
2015 01  15.38419  05 18 10.741  +04 34 46.79  21.9w 14WU509   F51  C~1vXs      
2015 01  15.39655  05 18 10.689  +04 34 46.93  21.7w 14WU509   F51  C~1vXs      
2015 01  15.40893  05 18 10.637  +04 34 47.05  21.7w 14WU509   F51  C~1vXs      
2015 01  17.35253  05 18 02.932  +04 35 07.50  22.0w 14WU509   F51  C~1vXs      
2015 01  17.36649  05 18 02.869  +04 35 07.61  22.0w 14WU509   F51  C~1vXs      
2015 01  17.38030  05 18 02.829  +04 35 07.69  22.3w 14WU509   F51  C~1vXs      
2015 01  17.39411  05 18 02.771  +04 35 07.91  22.3w 14WU509   F51  C~1vXs      
2015 02  13.22913  05 16 45.361  +04 42 28.46  22.0w 14WU509   F51  C~1vXs      
2015 02  13.24305  05 16 45.355  +04 42 28.92  22.4w 14WU509   F51  C~1vXs      
2015 02  13.25695  05 16 45.307  +04 42 29.19  22.2w 14WU509   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    -0.03       0.00    -0.16
  2   0.0000     -1.26    -0.14       0.19     0.07
  3   0.0001     -2.16     0.09       0.09     0.00
  4   0.0001     -3.34     0.03       0.14     0.09
  5   0.8817   7779.34     0.07    -288.75    -0.21
  6   0.8817   7778.53    -0.01    -289.00    -0.15
  7   0.8818   7777.83     0.02    -289.17    -0.02
  8   0.8818   7777.12     0.05    -289.20     0.26
  9   2.0122   9569.20    -0.03   -1644.56     0.09
 10   2.0122   9566.82    -0.07   -1644.35     0.31
 11   2.0123   9565.82     0.08   -1644.61     0.05
 12   3.2329  10664.29    -0.10   -1221.31    -0.03
 13   3.2329  10664.53     0.14   -1221.48    -0.26
 14   3.2330  10664.37    -0.02   -1221.14    -0.16
 15   3.2330  10664.35    -0.04   -1220.95    -0.04
 16   3.2330  10664.26    -0.13   -1220.65     0.02
 17   3.2330  10664.43     0.05   -1220.29     0.09
 18   3.2330  10664.26    -0.12   -1220.52    -0.21
 19   3.9592  21030.84    -0.03   -3213.04    -0.07
 20   3.9592  21029.95     0.04   -3213.24    -0.13
 21   3.9593  21028.94    -0.01   -3213.43    -0.19
 22   3.9593  21027.84    -0.16   -3213.36     0.00
 23   4.0301  19089.77 (   0.45)  -3305.54 (  -0.31)
 24   4.0301  19088.61     0.16   -3305.17     0.03
 25   4.0301  19087.65     0.08   -3305.02     0.14
 26   4.0302  19086.76     0.06   -3304.99     0.14
 27   4.1121  16996.15    -0.06   -3009.27     0.18
 28   4.1122  16995.50     0.04   -3009.24     0.00
 29   4.1122  16994.74     0.02   -3009.02     0.02
 30   4.1122  16993.97     0.00   -3008.82     0.02
 31   4.1175  16880.69    -0.05   -2976.44     0.16
 32   4.1176  16879.76    -0.17   -2976.23     0.13
 33   4.1176  16879.17     0.05   -2976.09     0.04
 34   4.1177  16878.33     0.02   -2975.78     0.11
 35   4.1911  15765.29    -0.04   -2415.81    -0.20
 36   4.1912  15765.25     0.26   -2415.34    -0.06
 37   4.1912  15764.56    -0.08   -2415.00    -0.05

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.

14WU509    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.849    41.859    41.840
ecceobj         0.070     0.071     0.070
incobj         19.555    19.555    19.555
qmin           37.612    37.693    37.761
qmax           45.818    45.749    45.654
amean          41.618    41.616    41.590
amin           41.271    41.273    41.264
amax           41.980    41.980    41.928
emean           0.077     0.076     0.075
emin            0.064     0.062     0.063
emax            0.093     0.091     0.089
imean          19.913    19.928    19.923
imin           19.344    19.374    19.379
imax           20.456    20.460    20.471
excite_mean     0.349     0.349     0.349
fracstop        1.000     1.000     1.000
cjmean          2.928     2.928     2.928

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       174.3     173.8     174.7
kozaiamp        180.0     179.9     180.0