Orbit Fit and Astrometric record for 14WC602

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: 14WC602   
# Created Wed Dec  8 02:12:59 2021
# Orbit generated from Bernstein formalism
# Fitting     20 observations of     20
# Arc:   4.03y
# First observation: 2014/11/18
#  Last observation: 2018/11/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000027   0.031779  -0.000134  -0.002179   0.029539   0.000000
# Chi-squared of fit:     3.95 DOF:     34 RMS:  0.08
# Min/Max residuals:    -0.19    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.710792E-05  3.140221E-02 -1.682855E-06 -2.182374E-03  2.863571E-02 -3.139220E-03
# Covariance matrix:
  2.2051E-13 -2.1225E-13  1.4249E-15  8.3860E-15 -2.1079E-14 -1.2761E-12
 -2.1225E-13  5.5288E-13  5.4138E-15 -3.2440E-14 -5.4869E-14  4.2680E-12
  1.4249E-15  5.4138E-15  1.7232E-13 -5.9911E-14 -2.4661E-14  3.7922E-14
  8.3860E-15 -3.2440E-14 -5.9911E-14  3.7701E-14  1.3246E-14 -2.6479E-13
 -2.1079E-14 -5.4869E-14 -2.4661E-14  1.3246E-14  3.0269E-13 -3.6960E-13
 -1.2761E-12  4.2680E-12  3.7922E-14 -2.6479E-13 -3.6960E-13  3.5221E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -29.463723   -8.465483   -0.887866   -0.214410   -0.379917  2456979.676858
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:          323.62605 +/-     0.066
Argument of Peri:      309.53788 +/-     0.089
Long of Asc Node:       89.67415 +/-     0.001
Inclination:            29.26445 +/-     0.000
Eccentricity:         0.11590604 +/-    0.0001
Semi-Major Axis:     38.71448219 +/-    0.0035
Time of Perihelion: 2465860.3941 +/-      16.0
Perihelion:          34.22723968 +/-    0.0056
Aphelion:            43.20172470 +/-    0.0061
Period (y)              240.8898 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.63327910 +/-    0.0006
Ecliptic Y           -3.66037587 +/-    0.0001
Ecliptic Z          -17.17700029 +/-    0.0003
Ecliptic XDOT         0.00007773 +/-    0.0000
Ecliptic YDOT         0.00301825 +/-    0.0000
Ecliptic ZDOT        -0.00003394 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.31069921 +/-    0.0005
Geocenter to KBO     34.92143726 +/-    0.0007
# Hcoef:  7.86

The following table shows the complete astrometric record for 14WC602. 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 (14WC602) followed by the observatory code and reference code for the source of the astrometry.

2014 11  18.17608  00 20 43.005  -30 09 00.78  23.6g 14WC602   W84  C~55TE      
2014 12  12.06949  00 19 53.905  -29 53 19.40  23.9g 14WC602   W84  C~55TE      
2014 12  12.07085  00 19 53.909  -29 53 19.38  23.4r 14WC602   W84  C~55TE      
2014 12  12.07222  00 19 53.917  -29 53 19.28  23.2i 14WC602   W84  C~55TE      
2014 12  13.07482  00 19 53.298  -29 52 28.60  23.5i 14WC602   W84  C~55TE      
2014 12  13.08184  00 19 53.297  -29 52 28.39  22.9r 14WC602   W84  C~55TE      
2014 12  15.06463  00 19 52.487  -29 50 46.11  23.2z 14WC602   W84  C~55TE      
2015 11  14.05695  00 28 37.091  -29 27 29.82  23.8r 14WC602   W84  C~55TE      
2015 11  14.05831  00 28 37.081  -29 27 29.70  24.1g 14WC602   W84  C~55TE      
2016 08  14.39072  00 44 03.639  -28 02 56.60  23.6r 14WC602   W84  C~55TE      
2016 08  14.39208  00 44 03.623  -28 02 56.70  23.2i 14WC602   W84  C~55TE      
2016 10  21.12813  00 38 06.452  -28 44 41.31  23.2g 14WC602   W84  C~55TE      
2016 10  29.25732  00 37 22.231  -28 45 00.02  23.1i 14WC602   W84  C~55TE      
2016 11  04.09479  00 36 52.750  -28 44 26.71  23.3r 14WC602   W84  C~55TE      
2017 09  26.34959  00 48 06.480  -27 47 47.03  23.7g 14WC602   W84  C~55TE      
2017 12  09.04570  00 42 22.649  -27 41 52.12  23.8r 14WC602   W84  C~55TE      
2017 12  09.08186  00 42 22.581  -27 41 50.48  24.0g 14WC602   W84  C~55TE      
2018 11  15.13026  00 51 01.138  -27 05 54.70  22.5i 14WC602   W84  C~55TE      
2018 11  29.10311  00 50 09.156  -27 00 04.88  23.4r 14WC602   W84  C~55TE      
2018 11  30.08125  00 50 06.216  -26 59 32.70  24.1g 14WC602   W84  C~55TE      

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     0.05       0.00     0.10
     2   0.0654   -140.55    -0.08    1128.33     0.05
     3   0.0654   -140.50    -0.05    1128.33    -0.02
     4   0.0654   -140.36     0.07    1128.37    -0.04
     5   0.0682   -124.56    -0.05    1177.19     0.13
     6   0.0682   -124.47    -0.08    1177.38    -0.03
     7   0.0736    -87.49     0.12    1273.33    -0.19
     8   0.9880   6625.16     0.01    -646.70    -0.13
     9   0.9880   6625.10     0.00    -646.53    -0.02
    10   1.7391  19799.76     0.10   -2119.42    -0.06
    11   1.7391  19799.52    -0.05   -2119.40    -0.00
    12   1.9246  14427.16    -0.02   -1970.63     0.17
    13   1.9468  13907.64     0.12   -1702.82    -0.07
    14   1.9628  13583.49    -0.08   -1484.67     0.11
    15   2.8561  23075.61    -0.08   -2955.92     0.04
    16   3.0578  19260.71    -0.00    -348.58     0.01
    17   3.0579  19260.74    -0.01    -346.70     0.06
    18   3.9917  26401.46     0.10   -1968.86    -0.10
    19   4.0299  25975.21     0.02   -1308.42     0.02
    20   4.0326  25957.46    -0.09   -1260.34    -0.03

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.

14WC602    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        39.021    39.033    39.010
ecceobj         0.121     0.121     0.121
incobj         29.281    29.282    29.281
qmin           33.575    33.558    33.562
qmax           44.387    44.452    44.331
amean          38.842    38.855    38.807
amin           38.530    38.534    38.469
amax           39.196    39.204    39.164
emean           0.115     0.117     0.115
emin            0.100     0.100     0.100
emax            0.133     0.134     0.132
imean          27.554    27.544    27.550
imin           26.982    26.974    27.000
imax           28.206    28.190    28.213
excite_mean     0.477     0.477     0.477
fracstop        1.000     1.000     1.000
cjmean          2.776     2.776     2.776

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       174.6     174.4     174.1
kozaiamp        180.0     180.0     180.0