Orbit Fit and Astrometric record for 14WZ555

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: 14WZ555   
# Created Sat Nov 27 02:13:01 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     46 observations of     46
# Arc:   6.15y
# First observation: 2014/11/16
#  Last observation: 2021/01/11
# Chi-squared of fit:     9.12 DOF:     86 RMS:  0.08
# Min/Max residuals:    -0.22    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.754769E-05  3.092864E-02  1.221297E-07  9.100225E-04  2.754360E-02 -2.758662E-03
# Covariance matrix:
  1.0184E-13 -4.8599E-14 -2.0328E-14  1.2377E-15  5.5492E-14 -1.6000E-13
 -4.8599E-14  7.5320E-14 -6.3066E-15  3.9377E-15  1.7477E-14  3.7243E-13
 -2.0328E-14 -6.3066E-15  8.9773E-14 -1.8289E-14 -7.2032E-14 -6.1954E-14
  1.2377E-15  3.9377E-15 -1.8289E-14  7.3285E-15  1.0597E-14  2.5130E-14
  5.5492E-14  1.7477E-14 -7.2032E-14  1.0597E-14  1.9709E-13  1.7069E-13
 -1.6000E-13  3.7243E-13 -6.1954E-14  2.5130E-14  1.7069E-13  2.0490E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -32.613983   22.193442   -0.513515   -0.455858   -0.712779  2456977.770208
# Heliocentric elements and errors
Epoch:              2456978.5000  =  2014/11/17
Mean Anomaly:          342.88796 +/-     0.010
Argument of Peri:      299.70807 +/-     0.015
Long of Asc Node:      108.99768 +/-     0.000
Inclination:            31.97359 +/-     0.000
Eccentricity:         0.20509945 +/-    0.0001
Semi-Major Axis:     45.76195967 +/-    0.0040
Time of Perihelion: 2462353.2047 +/-      14.5
Perihelion:          36.37620708 +/-    0.0041
Aphelion:            55.14771225 +/-    0.0055
Period (y)              309.5745 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.90225265 +/-    0.0005
Ecliptic Y           12.34839339 +/-    0.0002
Ecliptic Z          -19.56817551 +/-    0.0003
Ecliptic XDOT        -0.00133428 +/-    0.0000
Ecliptic YDOT         0.00277277 +/-    0.0000
Ecliptic ZDOT         0.00022409 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.02350820 +/-    0.0004
Geocenter to KBO     36.30617578 +/-    0.0006
# Hcoef:  6.91

The following table shows the complete astrometric record for 14WZ555. 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 (14WZ555) followed by the observatory code and reference code for the source of the astrometry.

2014 11  16.26943  02 11 57.862  -21 35 18.80  22.2i 14WZ555   W84  C~4yVK      
2014 11  16.26943  02 11 57.86   -21 35 18.8   22.4i 14WZ555   W84  C~3cpS      
2014 12  17.16553  02 09 45.721  -21 26 35.97  22.9g 14WZ555   W84  C~4yVK      
2014 12  17.16553  02 09 45.72   -21 26 36.0   23.1g 14WZ555   W84  C~3cpS      
2014 12  31.14336  02 09 11.880  -21 17 24.73  22.7z 14WZ555   W84  C~4yVK      
2015 01  07.11767  02 09 02.565  -21 11 48.75  22.4z 14WZ555   W84  C~4yVK      
2015 01  12.10490  02 08 59.187  -21 07 26.67  22.9g 14WZ555   W84  C~4yVK      
2015 01  12.10490  02 08 59.18   -21 07 26.7   23.2g 14WZ555   W84  C~3cpS      
2015 01  12.10626  02 08 59.186  -21 07 26.61  22.9r 14WZ555   W84  C~4yVK      
2015 01  12.10626  02 08 59.19   -21 07 26.6   22.9r 14WZ555   W84  C~3cpS      
2015 01  13.10774  02 08 58.841  -21 06 32.04  22.6i 14WZ555   W84  C~4yVK      
2015 01  13.10774  02 08 58.84   -21 06 32.1   22.6i 14WZ555   W84  C~3cpS      
2015 01  15.10446  02 08 58.480  -21 04 41.34  22.7r 14WZ555   W84  C~4yVK      
2015 01  15.10446  02 08 58.48   -21 04 41.3   22.7r 14WZ555   W84  C~3cpS      
2015 01  15.10583  02 08 58.482  -21 04 41.30  23.0i 14WZ555   W84  C~4yVK      
2015 01  15.10583  02 08 58.48   -21 04 41.3   22.9i 14WZ555   W84  C~3cpS      
2015 01  21.06177  02 09 00.109  -20 58 57.60  22.7r 14WZ555   W84  C~4yVK      
2015 01  21.06177  02 09 00.11   -20 58 57.6   22.7r 14WZ555   W84  C~3cpS      
2015 12  05.07187  02 17 21.838  -20 47 04.03  22.6r 14WZ555   W84  C~4yVK      
2015 12  05.07187  02 17 21.84   -20 47 04.0   22.7r 14WZ555   W84  C~3cpS      
2015 12  15.17624  02 16 42.680  -20 42 58.71  23.2g 14WZ555   W84  C~4yVK      
2015 12  15.17624  02 16 42.68   -20 42 58.7   23.1g 14WZ555   W84  C~3cpS      
2016 01  17.10352  02 15 42.199  -20 18 51.27  22.7z 14WZ555   W84  C~4yVK      
2016 02  06.03860  02 16 03.256  -19 58 37.69  22.2i 14WZ555   W84  C~4yVK      
2016 02  06.03860  02 16 03.26   -19 58 37.7   22.2i 14WZ555   W84  C~3cpS      
2016 02  06.03997  02 16 03.261  -19 58 37.61  22.3i 14WZ555   W84  C~4yVK      
2016 09  24.22867  02 30 13.327  -19 39 27.43  22.9g 14WZ555   W84  C~4yVK      
2016 09  24.22867  02 30 13.33   -19 39 27.4   23.0g 14WZ555   W84  C~3cpS      
2017 12  07.20382  02 30 45.752  -19 12 30.32  22.1i 14WZ555   W84  C~4yVK      
2017 12  10.18223  02 30 33.179  -19 11 29.31  22.5r 14WZ555   W84  C~4yVK      
2017 12  10.18362  02 30 33.180  -19 11 29.22  23.3g 14WZ555   W84  C~4yVK      
2017 12  24.15990  02 29 43.682  -19 04 42.31  22.7r 14WZ555   W84  C~4yVK      
2017 12  24.16126  02 29 43.676  -19 04 42.25  22.3i 14WZ555   W84  C~4yVK      
2017 12  24.16262  02 29 43.670  -19 04 42.16  23.2g 14WZ555   W84  C~4yVK      
2018 02  13.03766  02 29 32.735  -18 19 07.64  22.5z 14WZ555   W84  C~4yVK      
2018 11  16.27877  02 39 15.986  -18 26 06.40  22.6r 14WZ555   W84  C~4yVK      
2018 11  16.28014  02 39 15.976  -18 26 06.40  22.4i 14WZ555   W84  C~4yVK      
2018 11  16.28153  02 39 15.975  -18 26 06.32  23.1g 14WZ555   W84  C~4yVK      
2020 10  14.46982  02 55 36.667  -16 32 35.34  22.5w 14WZ555   F51  C~4A5M      
2020 10  14.49046  02 55 36.554  -16 32 35.61  22.2w 14WZ555   F51  C~4A5M      
2020 10  14.50083  02 55 36.511  -16 32 36.08  22.5w 14WZ555   F51  C~4A5M      
2020 10  20.359960 02 55 06.711  -16 35 51.96  22.5G 14WZ555   G37  C~4Kxw      
2020 10  20.406740 02 55 06.462  -16 35 53.54        14WZ555   G37  C~4Kxw      
2021 01  11.108120 02 48 57.969  -16 24 33.94  22.5G 14WZ555   G37  C~4UFW      
2021 01  11.166270 02 48 57.861  -16 24 31.23        14WZ555   G37  C~4UFW      
2021 01  11.212780 02 48 57.804  -16 24 28.74        14WZ555   G37  C~4UFW      

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     0.01       0.00     0.09
     2   0.0000      0.00    -0.02       0.00     0.09
     3   0.0846      0.00    -0.01       0.00     0.07
     4   0.0846      0.00    -0.03       0.00     0.04
     5   0.1229      0.00     0.11       0.00     0.03
     6   0.1420      0.00    -0.14       0.00    -0.17
     7   0.1556      0.00     0.03       0.00     0.01
     8   0.1556      0.00    -0.07       0.00    -0.02
     9   0.1556      0.00     0.09       0.00     0.01
    10   0.1556      0.00     0.03       0.00     0.00
    11   0.1584      0.00     0.04       0.00    -0.06
    12   0.1584      0.00     0.05       0.00    -0.00
    13   0.1638      0.00    -0.04       0.00     0.07
    14   0.1638      0.00    -0.04       0.00     0.03
    15   0.1638      0.00    -0.01       0.00    -0.01
    16   0.1638      0.00    -0.04       0.00    -0.01
    17   0.1801      0.00    -0.03       0.00    -0.01
    18   0.1801      0.00    -0.04       0.00    -0.01
    19   1.0508      0.00     0.09       0.00     0.02
    20   1.0508      0.00     0.06       0.00    -0.01
    21   1.0785      0.00     0.12       0.00     0.03
    22   1.0785      0.00     0.12       0.00     0.02
    23   1.1686      0.00    -0.05       0.00     0.03
    24   1.2232      0.00    -0.01       0.00    -0.01
    25   1.2232      0.00    -0.07       0.00    -0.00
    26   1.2232      0.00    -0.04       0.00    -0.01
    27   1.8562      0.00     0.03       0.00    -0.06
    28   1.8562      0.00    -0.01       0.00    -0.09
    29   3.0580      0.00     0.07       0.00     0.02
    30   3.0662      0.00    -0.03       0.00    -0.07
    31   3.0662      0.00     0.08       0.00    -0.01
    32   3.1044      0.00     0.04       0.00    -0.01
    33   3.1044      0.00     0.01       0.00     0.00
    34   3.1044      0.00    -0.02       0.00     0.04
    35   3.2437      0.00     0.03       0.00     0.05
    36   4.0000      0.00    -0.04       0.00    -0.03
    37   4.0000      0.00    -0.08       0.00    -0.02
    38   4.0000      0.00     0.02       0.00     0.06
    39   5.9116      0.00     0.04       0.00    -0.14
    40   5.9116      0.00    -0.09       0.00     0.32
    41   5.9117      0.00     0.05       0.00     0.22
    42   5.9277      0.00     0.03       0.00    -0.09
    43   5.9278      0.00     0.01       0.00    -0.22
    44   6.1542      0.00    -0.01       0.00    -0.10
    45   6.1544      0.00    -0.16       0.00    -0.13
    46   6.1545      0.00     0.15       0.00     0.15

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.

14WZ555    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.234    46.234    46.234
ecceobj         0.212     0.212     0.212
incobj         31.979    31.979    31.979
qmin           35.637    35.586    35.572
qmax           56.459    56.570    56.475
amean          45.835    45.832    45.826
amin           45.439    45.442    45.415
amax           46.288    46.297    46.287
emean           0.202     0.202     0.202
emin            0.183     0.183     0.183
emax            0.220     0.222     0.221
imean          30.412    30.405    30.397
imin           29.974    29.968    29.917
imax           30.781    30.776    30.802
excite_mean     0.545     0.545     0.545
fracstop        1.000     1.000     1.000
cjmean          2.741     2.741     2.741

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       188.5     188.8     189.4
kozaiamp        180.0     179.9     180.0