Orbit Fit and Astrometric record for 14WY555

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: 14WY555   
# Created Sat Dec  4 02:12:59 2021
# Orbit generated from Bernstein formalism
# Fitting     36 observations of     36
# Arc:   4.00y
# First observation: 2014/11/16
#  Last observation: 2018/11/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000308   0.025921  -0.000085  -0.003434   0.025265   0.000000
# Chi-squared of fit:     8.42 DOF:     66 RMS:  0.09
# Min/Max residuals:    -0.20    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.638094E-05  2.654047E-02 -2.379700E-06 -3.492046E-03  2.491816E-02  6.691865E-03
# Covariance matrix:
  1.8067E-13 -2.0916E-13 -4.0773E-15  1.4828E-14 -2.4706E-14 -1.7473E-12
 -2.0916E-13  3.8184E-13  1.1370E-14 -3.3968E-14  6.3140E-15  3.8534E-12
 -4.0773E-15  1.1370E-14  1.1470E-13 -6.4052E-14 -1.4689E-14  1.1806E-13
  1.4828E-14 -3.3968E-14 -6.4052E-14  5.7948E-14  4.8219E-15 -3.9389E-13
 -2.4706E-14  6.3140E-15 -1.4689E-14  4.8219E-15  3.2305E-13  4.1479E-13
 -1.7473E-12  3.8534E-12  1.1806E-13 -3.9389E-13  4.1479E-13  4.5699E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -37.589814    3.152538   -0.761149   -0.385759   -0.501416  2456977.743018
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:           29.73157 +/-     0.014
Argument of Peri:      199.91218 +/-     0.022
Long of Asc Node:      105.88909 +/-     0.001
Inclination:            37.58975 +/-     0.000
Eccentricity:         0.35915639 +/-    0.0003
Semi-Major Axis:     54.77758914 +/-    0.0161
Time of Perihelion: 2444740.7354 +/-       1.9
Perihelion:          35.10386783 +/-    0.0187
Aphelion:            74.45131045 +/-    0.0269
Period (y)              405.4269 +/-      0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.33897504 +/-    0.0007
Ecliptic Y            2.54535371 +/-    0.0000
Ecliptic Z          -24.48044648 +/-    0.0006
Ecliptic XDOT         0.00018339 +/-    0.0000
Ecliptic YDOT         0.00292590 +/-    0.0000
Ecliptic ZDOT        -0.00075244 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.63964065 +/-    0.0007
Geocenter to KBO     40.13137538 +/-    0.0009
# Hcoef:  7.16

The following table shows the complete astrometric record for 14WY555. 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 (14WY555) followed by the observatory code and reference code for the source of the astrometry.

2014 11  16.24224  01 18 37.785  -32 50 33.57  23.1r 14WY555   W84  C~4yVK      
2014 11  16.24224  01 18 37.79   -32 50 33.6   23.1r 14WY555   W84  C~3cpS      
2014 11  16.24360  01 18 37.773  -32 50 33.71  23.0i 14WY555   W84  C~4yVK      
2014 11  16.24360  01 18 37.77   -32 50 33.7   23.1i 14WY555   W84  C~3cpS      
2014 11  27.21459  01 17 53.780  -32 46 30.22  23.8g 14WY555   W84  C~4yVK      
2014 11  27.21459  01 17 53.78   -32 46 30.2   24.0g 14WY555   W84  C~3cpS      
2015 01  24.04826  01 17 13.822  -31 57 17.80  22.8z 14WY555   W84  C~4yVK      
2015 01  24.04826  01 17 13.82   -31 57 17.7   23.1z 14WY555   W84  C~3cpS      
2015 11  01.23419  01 26 35.883  -32 19 16.99  23.0i 14WY555   W84  C~4yVK      
2015 11  01.23419  01 26 35.88   -32 19 17.0   23.1i 14WY555   W84  C~3cpS      
2015 11  05.13688  01 26 15.977  -32 19 17.41  23.5g 14WY555   W84  C~4yVK      
2015 11  05.13688  01 26 15.98   -32 19 17.4   23.7g 14WY555   W84  C~3cpS      
2015 11  05.13827  01 26 15.952  -32 19 17.49  23.0i 14WY555   W84  C~4yVK      
2015 11  05.13827  01 26 15.95   -32 19 17.5   23.0i 14WY555   W84  C~3cpS      
2015 11  05.13965  01 26 15.952  -32 19 17.38  23.3r 14WY555   W84  C~4yVK      
2015 11  05.13965  01 26 15.95   -32 19 17.4   23.4r 14WY555   W84  C~3cpS      
2015 11  06.22355  01 26 10.509  -32 19 14.37  24.2g 14WY555   W84  C~4yVK      
2015 11  06.22492  01 26 10.499  -32 19 14.60  23.5i 14WY555   W84  C~4yVK      
2015 11  06.22492  01 26 10.50   -32 19 14.6   23.5i 14WY555   W84  C~3cpS      
2015 11  06.22632  01 26 10.489  -32 19 14.52  23.5r 14WY555   W84  C~4yVK      
2015 11  06.22632  01 26 10.49   -32 19 14.5   23.6r 14WY555   W84  C~3cpS      
2015 11  30.19769  01 24 26.869  -32 12 39.63  22.9i 14WY555   W84  C~4yVK      
2015 12  01.14953  01 24 23.583  -32 12 11.31  23.5r 14WY555   W84  C~4yVK      
2015 12  01.14953  01 24 23.58   -32 12 11.3   23.6r 14WY555   W84  C~3cpS      
2015 12  01.15092  01 24 23.577  -32 12 11.54  24.2g 14WY555   W84  C~4yVK      
2016 09  30.37020  01 35 53.900  -31 34 56.82  23.1r 14WY555   W84  C~4yVK      
2016 09  30.37020  01 35 53.90   -31 34 56.8   23.1r 14WY555   W84  C~3cpS      
2016 09  30.37156  01 35 53.888  -31 34 56.77  23.0i 14WY555   W84  C~4yVK      
2016 09  30.37156  01 35 53.89   -31 34 56.8   22.9i 14WY555   W84  C~3cpS      
2016 09  30.37293  01 35 53.883  -31 34 56.99  24.1g 14WY555   W84  C~4yVK      
2016 09  30.37293  01 35 53.88   -31 34 57.0   24.2g 14WY555   W84  C~3cpS      
2016 11  17.22694  01 31 48.363  -31 43 38.01  22.7z 14WY555   W84  C~4yVK      
2016 11  28.06687  01 31 03.968  -31 39 55.05  24.2g 14WY555   W84  C~4yVK      
2017 02  03.03380  01 30 34.342  -30 42 06.92  22.8z 14WY555   W84  C~4yVK      
2017 12  24.13633  01 36 16.007  -30 49 44.58  22.7z 14WY555   W84  C~4yVK      
2018 11  17.04075  01 44 27.572  -30 34 07.61  22.6z 14WY555   W84  C~4yVK      

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     0.10       0.00     0.03
     2   0.0000      0.04     0.14      -0.06    -0.02
     3   0.0000     -0.20    -0.05      -0.05    -0.07
     4   0.0000     -0.23    -0.08      -0.03    -0.05
     5   0.0300   -374.25     0.01     476.38     0.18
     6   0.0300   -374.24     0.02     476.40     0.20
     7   0.1884    568.29    -0.03    3320.06     0.02
     8   0.1884    568.31    -0.01    3320.16     0.12
     9   0.9582   6202.31    -0.14   -1261.66     0.03
    10   0.9582   6202.34    -0.11   -1261.67     0.02
    11   0.9689   5981.84     0.16   -1138.63    -0.10
    12   0.9689   5981.81     0.12   -1138.62    -0.09
    13   0.9689   5981.46    -0.14   -1138.53    -0.05
    14   0.9689   5981.49    -0.11   -1138.54    -0.05
    15   0.9689   5981.54     0.02   -1138.44    -0.00
    16   0.9689   5981.51    -0.02   -1138.45    -0.01
    17   0.9719   5922.75     0.09   -1102.10     0.07
    18   0.9719   5922.54    -0.05   -1102.24    -0.12
    19   0.9719   5922.53    -0.06   -1102.24    -0.11
    20   0.9719   5922.48    -0.03   -1102.09    -0.02
    21   0.9719   5922.46    -0.05   -1102.10    -0.03
    22   1.0375   4965.60     0.12    -117.30    -0.08
    23   1.0401   4942.80     0.06     -72.28     0.05
    24   1.0401   4942.83     0.09     -72.31     0.03
    25   1.0401   4942.65    -0.06     -72.47    -0.20
    26   1.8730  13703.77     0.02   -2499.46    -0.01
    27   1.8730  13703.76     0.01   -2499.47    -0.03
    28   1.8730  13703.66     0.01   -2499.39     0.05
    29   1.8730  13703.66     0.01   -2499.35     0.09
    30   1.8730  13703.45    -0.10   -2499.50    -0.07
    31   1.8730  13703.49    -0.06   -2499.51    -0.08
    32   2.0041  10721.95    -0.05   -1367.74     0.26
    33   2.0337  10341.02     0.11    -891.18    -0.05
    34   2.2171  11740.59     0.03    2311.42    -0.02
    35   3.1044  15333.30     0.03    -302.07     0.09
    36   4.0022  21295.23     0.00   -2784.08     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.

14WY555    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        55.447    55.497    55.397
ecceobj         0.366     0.366     0.365
incobj         37.592    37.592    37.592
qmin           33.047    32.926    33.207
qmax           78.212    78.466    77.813
amean          55.096    55.133    55.024
amin           54.497    54.518    54.424
amax           55.914    55.972    55.768
emean           0.377     0.378     0.374
emin            0.353     0.352     0.350
emax            0.400     0.403     0.396
imean          35.424    35.388    35.525
imin           34.801    34.743    34.942
imax           36.246    36.268    36.305
excite_mean     0.692     0.692     0.691
fracstop        1.000     1.000     1.000
cjmean          2.589     2.589     2.589

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       200.3     205.6     190.7
kozaiamp        180.0     180.0     180.0