Orbit Fit and Astrometric record for 14WC509

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: 14WC509   
# Created Mon Oct 23 01:38:31 2017
# Orbit generated from Bernstein formalism
# Fitting   14 observations of   14
# Arc:  66.89d
# First observation: 2014/11/17
#  Last observation: 2015/01/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.000005   0.033931   0.000001  -0.005752   0.032009   0.000000
# Chi-squared of fit:     2.04 DOF:   22 RMS:  0.07
# Min/Max residuals:    -0.12    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.855622E-05  3.933522E-02 -2.337759E-06 -5.808149E-03  3.278450E-02  8.256970E-03
# Covariance matrix:
  6.4001E-13  3.1712E-10 -3.3078E-14 -4.8712E-12  5.3769E-11  5.8286E-11
  3.1712E-10  6.7035E-07 -6.9580E-11 -1.0002E-08  1.1163E-07 -1.0478E-07
 -3.3078E-14 -6.9580E-11  4.8815E-13 -1.8321E-12 -1.1576E-11  1.3211E-11
 -4.8712E-12 -1.0002E-08 -1.8321E-12  1.7254E-10 -1.6729E-09 -8.9468E-11
  5.3769E-11  1.1163E-07 -1.1576E-11 -1.6729E-09  1.8626E-08 -9.1898E-09
  5.8286E-11 -1.0478E-07  1.3211E-11 -8.9468E-11 -9.1898E-09  1.8687E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.450979   97.774221    0.676931    0.056162   -0.719466  2456978.920128
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:           29.06562 +/-     4.224
Argument of Peri:      101.21837 +/-     7.224
Long of Asc Node:      304.19116 +/-     0.436
Inclination:             9.30004 +/-     0.135
Eccentricity:         0.27959429 +/-    0.0369
Semi-Major Axis:     39.86412612 +/-    1.6235
Time of Perihelion: 2449548.0232 +/-     978.7
Perihelion:          28.71834425 +/-    1.8792
Aphelion:            51.00990800 +/-    2.5454
Period (y)              251.6990 +/-     15.38
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -3.54371268 +/-    0.0171
Ecliptic Y           30.93831982 +/-    0.1254
Ecliptic Z            2.36706249 +/-    0.0099
Ecliptic XDOT        -0.00335707 +/-    0.0001
Ecliptic YDOT         0.00026913 +/-    0.0001
Ecliptic ZDOT        -0.00042996 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.23044216 +/-    0.1243
Geocenter to KBO     30.50221674 +/-    0.1270
# Hcoef:  6.99

The following table shows the complete astrometric record for 14WC509. 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 (14WC509) followed by the observatory code and reference code for the source of the astrometry.

2014 11  17.41935  06 35 01.827  +27 39 15.25  22.1w 14WC509   F51  C~1vXq      
2014 11  17.43252  06 35 01.749  +27 39 15.35  22.1w 14WC509   F51  C~1vXq      
2014 11  17.44561  06 35 01.692  +27 39 15.74  22.1w 14WC509   F51  C~1vXq      
2015 01  14.42414  06 28 36.220  +27 42 40.02  22.0w 14WC509   F51  C~1vXq      
2015 01  14.43707  06 28 36.135  +27 42 39.96  22.0w 14WC509   F51  C~1vXq      
2015 01  14.44996  06 28 36.043  +27 42 39.98  22.0w 14WC509   F51  C~1vXq      
2015 01  14.46281  06 28 35.951  +27 42 39.91  21.9w 14WC509   F51  C~1vXq      
2015 01  16.43271  06 28 22.512  +27 42 36.64  22.1w 14WC509   F51  C~1vXq      
2015 01  16.44434  06 28 22.426  +27 42 36.59  22.0w 14WC509   F51  C~1vXq      
2015 01  16.45600  06 28 22.341  +27 42 36.50  21.9w 14WC509   F51  C~1vXq      
2015 01  16.46754  06 28 22.269  +27 42 36.53  22.2w 14WC509   F51  C~1vXq      
2015 01  23.28299  06 27 37.528  +27 42 19.25  21.9w 14WC509   F51  C~1vXq      
2015 01  23.29699  06 27 37.438  +27 42 19.21  21.9w 14WC509   F51  C~1vXq      
2015 01  23.31095  06 27 37.342  +27 42 19.14  21.9w 14WC509   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     0.09       0.00    -0.10
  2   0.0000     -1.04    -0.09       0.04    -0.10
  3   0.0001     -1.82    -0.00       0.38     0.20
  4   0.1588  -5126.61    -0.05     -73.39     0.07
  5   0.1588  -5127.73     0.03     -73.51     0.04
  6   0.1589  -5128.95     0.00     -73.55     0.08
  7   0.1589  -5130.17    -0.02     -73.68     0.03
  8   0.1643  -5308.39     0.07     -85.42    -0.02
  9   0.1643  -5309.53    -0.00     -85.53    -0.05
 10   0.1644  -5310.66    -0.06     -85.67    -0.12
 11   0.1644  -5311.61     0.04     -85.69    -0.06
 12   0.1831  -5904.77     0.02    -130.60     0.03
 13   0.1831  -5905.96     0.02    -130.70     0.03
 14   0.1831  -5907.23    -0.05    -130.83    -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.

14WC509    quality flag:1

Type:           3:2E  CENTAURR  CENTAURR

axisobj        40.081    47.730    35.043
ecceobj         0.285     0.404     0.203
incobj          9.313     8.939     9.774
qmin           28.227    28.158    27.090
qmax           51.583    69.309    45.397
amean          39.456    47.861    35.393
amin           38.884    46.731    34.441
amax           40.112    49.345    37.314
emean           0.271     0.395     0.210
emin            0.257     0.375     0.176
emax            0.286     0.410     0.240
imean          10.833    11.584    11.474
imin           10.300    10.434    10.432
imax           11.427    12.681    13.602
excite_mean     0.330     0.443     0.290
fracstop        1.000     0.016     0.047
cjmean          2.927     2.897     2.930

libcent 0       180.7    -180.0    -180.0
libamp  0       128.1    -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       192.5     132.3     174.7
kozaiamp        179.9      23.6      68.1