Orbit Fit and Astrometric record for 14WY601

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: 14WY601   
# Created Sat Dec  4 02:13:00 2021
# Orbit generated from Bernstein formalism
# Fitting     16 observations of     16
# Arc:   4.03y
# First observation: 2014/11/17
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
   0.000140   0.028679   0.000038   0.009220   0.028003   0.000000
# Chi-squared of fit:     4.46 DOF:     26 RMS:  0.09
# Min/Max residuals:    -0.22    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.691077E-05  2.912795E-02  5.622561E-06  9.348844E-03  2.698580E-02  4.155582E-03
# Covariance matrix:
  4.8466E-13 -3.4573E-13  4.3860E-14 -7.1120E-14 -1.1434E-13 -1.9649E-12
 -3.4573E-13  5.5017E-13 -9.5988E-14  1.5872E-13  6.8487E-14  4.4530E-12
  4.3860E-14 -9.5988E-14  3.9063E-13 -1.6514E-13 -2.1608E-14 -8.8145E-13
 -7.1120E-14  1.5872E-13 -1.6514E-13  1.1609E-13  2.9976E-14  1.4560E-12
 -1.1434E-13  6.8487E-14 -2.1608E-14  2.9976E-14  3.5557E-13  7.1647E-13
 -1.9649E-12  4.4530E-12 -8.8145E-13  1.4560E-12  7.1647E-13  4.0818E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -27.841282   -3.851225   -0.840597   -0.243642   -0.461701  2456978.624588
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:           23.71153 +/-     0.017
Argument of Peri:      258.78607 +/-     0.035
Long of Asc Node:       51.68075 +/-     0.001
Inclination:            32.69125 +/-     0.000
Eccentricity:         0.28371837 +/-    0.0002
Semi-Major Axis:     49.33699300 +/-    0.0096
Time of Perihelion: 2448633.4086 +/-       5.3
Perihelion:          35.33918171 +/-    0.0123
Aphelion:            63.33480428 +/-    0.0160
Period (y)              346.5510 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.26785377 +/-    0.0007
Ecliptic Y           -1.39549118 +/-    0.0000
Ecliptic Z          -17.30615266 +/-    0.0004
Ecliptic XDOT         0.00100814 +/-    0.0000
Ecliptic YDOT         0.00288875 +/-    0.0000
Ecliptic ZDOT         0.00064190 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.52599646 +/-    0.0007
Geocenter to KBO     37.05652925 +/-    0.0008
# Hcoef:  7.59

The following table shows the complete astrometric record for 14WY601. 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 (14WY601) followed by the observatory code and reference code for the source of the astrometry.

2014 11  17.12381  00 33 51.283  -26 52 45.01  24.0g 14WY601   W84  C~55TD      
2014 11  21.13785  00 33 37.113  -26 50 58.29  23.0i 14WY601   W84  C~55TD      
2014 12  14.06369  00 32 46.475  -26 36 04.38  23.4r 14WY601   W84  C~55TD      
2016 09  03.34042  00 51 05.772  -24 09 05.46  23.5r 14WY601   W84  C~55TD      
2016 09  03.34179  00 51 05.785  -24 09 05.45  24.3g 14WY601   W84  C~55TD      
2016 10  08.16723  00 48 02.150  -24 26 34.73  23.4i 14WY601   W84  C~55TD      
2016 10  08.16860  00 48 02.145  -24 26 34.76  23.5r 14WY601   W84  C~55TD      
2016 12  23.06907  00 43 26.925  -24 03 49.86  23.0i 14WY601   W84  C~55TD      
2016 12  23.07044  00 43 26.925  -24 03 49.59  23.2r 14WY601   W84  C~55TD      
2016 12  23.07181  00 43 26.917  -24 03 49.68  24.5g 14WY601   W84  C~55TD      
2017 09  26.23188  00 54 22.478  -23 07 13.00  23.6r 14WY601   W84  C~55TD      
2017 09  26.23325  00 54 22.469  -23 07 12.99  22.7i 14WY601   W84  C~55TD      
2017 09  26.23462  00 54 22.466  -23 07 13.02  23.8g 14WY601   W84  C~55TD      
2017 12  08.14334  00 48 54.582  -23 02 40.37  22.5r 14WY601   W84  C~55TD      
2018 11  29.08376  00 54 21.464  -21 54 51.19  23.3r 14WY601   W84  C~55TD      
2018 11  29.08517  00 54 21.461  -21 54 51.07  24.0g 14WY601   W84  C~55TD      

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     0.03       0.00    -0.03
     2   0.0110   -122.36     0.02     179.91     0.09
     3   0.0738   -333.62    -0.05    1282.07     0.04
     4   1.7966  16987.08    -0.22    2288.81    -0.13
     5   1.7966  16987.24     0.05    2288.74    -0.20
     6   1.8920  14262.84     0.04    2546.03     0.03
     7   1.8920  14262.76     0.07    2546.04     0.01
     8   2.0998  11555.51     0.00    5509.65    -0.11
     9   2.0998  11555.63     0.10    5509.89     0.06
    10   2.0998  11555.49    -0.07    5509.86    -0.03
    11   2.8586  21169.36     0.00    4278.35     0.00
    12   2.8586  21169.25     0.01    4278.42     0.05
    13   2.8586  21169.20     0.07    4278.41     0.03
    14   3.0582  17282.71    -0.01    6670.82     0.31
    15   4.0327  23264.27    -0.05    8127.39    -0.09
    16   4.0327  23264.29     0.00    8127.52    -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.

14WY601    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        49.820    49.851    49.789
ecceobj         0.290     0.291     0.290
incobj         32.680    32.680    32.680
qmin           34.868    34.855    34.801
qmax           64.969    65.091    64.972
amean          49.627    49.656    49.571
amin           49.161    49.180    49.040
amax           50.190    50.217    50.157
emean           0.277     0.277     0.276
emin            0.258     0.258     0.257
emax            0.296     0.296     0.296
imean          32.050    32.050    32.047
imin           31.653    31.641    31.618
imax           32.605    32.592    32.599
excite_mean     0.599     0.599     0.598
fracstop        1.000     1.000     1.000
cjmean          2.697     2.697     2.697

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       181.2     181.2     180.8
kozaiamp        180.0     180.0     180.0