Orbit Fit and Astrometric record for 14WE602

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: 14WE602   
# Created Tue Dec  7 02:13:01 2021
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   4.03y
# First observation: 2014/11/18
#  Last observation: 2018/11/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000034   0.025933  -0.000039   0.015100   0.025016   0.000000
# Chi-squared of fit:     5.42 DOF:     18 RMS:  0.12
# Min/Max residuals:    -0.21    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.696182E-05  2.567563E-02  9.378567E-06  1.494695E-02  2.486946E-02 -2.757603E-03
# Covariance matrix:
  4.1962E-13 -3.1612E-13  4.9775E-14 -1.1792E-13 -1.8211E-13 -2.0782E-12
 -3.1612E-13  7.5371E-13 -2.0973E-13  4.2491E-13 -3.0783E-14  7.3438E-12
  4.9775E-14 -2.0973E-13  3.4675E-13 -2.4203E-13  4.5120E-14 -2.2983E-12
 -1.1792E-13  4.2491E-13 -2.4203E-13  3.4213E-13 -4.8888E-14  4.6197E-12
 -1.8211E-13 -3.0783E-14  4.5120E-14 -4.8888E-14  4.7842E-13 -7.4476E-13
 -2.0782E-12  7.3438E-12 -2.2983E-12  4.6197E-12 -7.4476E-13  7.9756E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -40.301028   10.579914   -0.697880   -0.453322   -0.534819  2456979.755718
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:          356.06346 +/-     0.016
Argument of Peri:      314.76632 +/-     0.053
Long of Asc Node:       58.56331 +/-     0.001
Inclination:            48.71749 +/-     0.000
Eccentricity:         0.48582538 +/-    0.0001
Semi-Major Axis:     78.60187879 +/-    0.0209
Time of Perihelion: 2459753.7984 +/-      11.2
Perihelion:          40.41509136 +/-    0.0143
Aphelion:           116.78866623 +/-    0.0325
Period (y)              696.8793 +/-      0.28
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.70355549 +/-    0.0008
Ecliptic Y            6.44709350 +/-    0.0002
Ecliptic Z          -26.00771585 +/-    0.0007
Ecliptic XDOT         0.00029537 +/-    0.0000
Ecliptic YDOT         0.00292648 +/-    0.0000
Ecliptic ZDOT         0.00145141 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.75137566 +/-    0.0008
Geocenter to KBO     40.20996139 +/-    0.0011
# Hcoef:  7.88

The following table shows the complete astrometric record for 14WE602. 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 (14WE602) followed by the observatory code and reference code for the source of the astrometry.

2014 11  18.25494  01 48 54.798  -32 31 45.34  24.2r 14WE602   W84  C~55TE      
2014 11  27.21161  01 48 10.821  -32 27 43.81  24.1r 14WE602   W84  C~55TE      
2014 11  27.21300  01 48 10.848  -32 27 43.66  23.6i 14WE602   W84  C~55TE      
2015 08  21.35041  02 00 19.642  -30 31 28.86  23.4i 14WE602   W84  C~55TE      
2015 09  13.35510  01 59 06.012  -30 49 06.41  23.6i 14WE602   W84  C~55TE      
2015 11  05.21184  01 54 21.543  -31 07 44.74  23.9r 14WE602   W84  C~55TE      
2015 11  08.24735  01 54 04.386  -31 07 24.33  23.8r 14WE602   W84  C~55TE      
2016 10  02.26690  02 01 36.127  -29 32 07.48  23.3i 14WE602   W84  C~55TE      
2016 10  02.26829  02 01 36.116  -29 32 07.89  24.4r 14WE602   W84  C~55TE      
2017 11  24.24605  02 00 45.528  -28 06 32.39  24.1r 14WE602   W84  C~55TE      
2017 11  24.24742  02 00 45.519  -28 06 32.44  24.6g 14WE602   W84  C~55TE      
2018 11  30.22764  02 04 13.707  -26 34 57.50  24.3r 14WE602   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    -0.13       0.00     0.03
     2   0.0245   -381.31    -0.11     471.69    -0.05
     3   0.0245   -380.94     0.31     471.66    -0.15
     4   0.7559  11144.59     0.10    2188.30     0.13
     5   0.8189   9797.03    -0.09    1724.00     0.21
     6   0.9636   6044.68    -0.07    2497.26     0.00
     7   0.9719   5860.30    -0.04    2619.81    -0.08
     8   1.8727  13760.16     0.13    4819.68     0.09
     9   1.8727  13759.83    -0.10    4819.39    -0.21
    10   3.0171  15701.76     0.03    9647.53     0.08
    11   3.0171  15701.64    -0.04    9647.55     0.02
    12   4.0328  20867.95     0.02   13116.37    -0.07

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.

14WE602    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        79.982    80.049    79.915
ecceobj         0.495     0.495     0.494
incobj         48.702    48.702    48.701
qmin           39.572    39.855    39.831
qmax          120.257   120.300   120.144
amean          79.015    79.130    78.996
amin           78.002    78.165    78.029
amax           80.336    80.468    80.316
emean           0.478     0.480     0.487
emin            0.464     0.470     0.479
emax            0.499     0.497     0.496
imean          48.023    47.971    47.711
imin           47.331    47.429    47.347
imax           48.570    48.422    48.056
excite_mean     0.884     0.884     0.886
fracstop        1.000     1.000     1.000
cjmean          2.284     2.285     2.284

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       177.1     216.5     338.1
kozaiamp        180.0     180.0      22.9