Orbit Fit and Astrometric record for 14WZ601

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: 14WZ601   
# Created Fri Dec  3 02:12:55 2021
# Orbit generated from Bernstein formalism
# Fitting     21 observations of     21
# Arc:   4.03y
# First observation: 2014/11/18
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
   0.000191   0.034420  -0.000087   0.000468   0.028445   0.000000
# Chi-squared of fit:     8.80 DOF:     36 RMS:  0.11
# Min/Max residuals:    -0.25    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.993434E-05  3.501943E-02  5.335881E-07  4.453054E-04  2.714137E-02  5.249699E-03
# Covariance matrix:
  4.4666E-13 -3.4170E-13  5.2354E-15 -3.8551E-15 -1.0630E-13 -1.7074E-12
 -3.4170E-13  4.8116E-13 -5.8873E-15  4.3575E-15  5.5861E-14  3.0650E-12
  5.2354E-15 -5.8873E-15  2.9847E-13 -9.6799E-14 -1.3006E-14 -4.0968E-14
 -3.8551E-15  4.3575E-15 -9.6799E-14  4.1263E-14  9.5022E-15  3.0323E-14
 -1.0630E-13  5.5861E-14 -1.3006E-14  9.5022E-15  4.7839E-13  3.8779E-13
 -1.7074E-12  3.0650E-12 -4.0968E-14  3.0323E-14  3.8779E-13  2.1345E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -28.019724   -8.197490   -0.885010   -0.207502   -0.390319  2456979.572228
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:            4.98119 +/-     0.004
Argument of Peri:      246.63405 +/-     0.016
Long of Asc Node:       80.38535 +/-     0.001
Inclination:            27.72512 +/-     0.000
Eccentricity:         0.61615246 +/-    0.0002
Semi-Major Axis:     93.28634219 +/-    0.0395
Time of Perihelion: 2452416.8882 +/-       2.5
Perihelion:          35.80773298 +/-    0.0219
Aphelion:           150.76495140 +/-    0.0657
Period (y)              901.0218 +/-      0.57
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.75431567 +/-    0.0008
Ecliptic Y           -3.82291969 +/-    0.0001
Ecliptic Z          -17.30849730 +/-    0.0004
Ecliptic XDOT         0.00098302 +/-    0.0000
Ecliptic YDOT         0.00342181 +/-    0.0000
Ecliptic ZDOT        -0.00020902 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.24303947 +/-    0.0008
Geocenter to KBO     36.84412001 +/-    0.0009
# Hcoef:  7.48

The following table shows the complete astrometric record for 14WZ601. 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 (14WZ601) followed by the observatory code and reference code for the source of the astrometry.

2014 11  18.07145  00 18 40.864  -28 45 21.42  23.4r 14WZ601   W84  C~55TD      
2014 11  18.07419  00 18 40.843  -28 45 21.32  23.3i 14WZ601   W84  C~55TD      
2014 11  21.13615  00 18 32.262  -28 43 54.10  22.9r 14WZ601   W84  C~55TD      
2016 01  01.05729  00 26 03.456  -27 17 43.38  23.3i 14WZ601   W84  C~55TD      
2016 01  01.07477  00 26 03.483  -27 17 42.00  23.5r 14WZ601   W84  C~55TD      
2016 09  06.39437  00 40 14.602  -26 38 06.09  23.1r 14WZ601   W84  C~55TD      
2016 09  06.39851  00 40 14.625  -26 38 06.26  22.3z 14WZ601   W84  C~55TD      
2016 10  29.25596  00 35 44.234  -26 56 45.22  22.7r 14WZ601   W84  C~55TD      
2016 11  05.23816  00 35 13.244  -26 55 58.18  23.2i 14WZ601   W84  C~55TD      
2016 11  06.22145  00 35 09.105  -26 55 47.59  24.4g 14WZ601   W84  C~55TD      
2017 10  30.04187  00 43 16.128  -25 58 18.64  22.7z 14WZ601   W84  C~55TD      
2017 11  09.21268  00 42 31.530  -25 57 08.00  23.2i 14WZ601   W84  C~55TD      
2017 11  17.15061  00 42 01.508  -25 55 00.72  23.4r 14WZ601   W84  C~55TD      
2017 11  17.15199  00 42 01.489  -25 55 00.94  23.6g 14WZ601   W84  C~55TD      
2017 11  24.08812  00 41 39.411  -25 52 18.02  23.4i 14WZ601   W84  C~55TD      
2017 11  24.17008  00 41 39.173  -25 52 15.94  23.4g 14WZ601   W84  C~55TD      
2018 09  21.24515  00 53 56.680  -24 47 32.00  22.4z 14WZ601   W84  C~55TD      
2018 11  15.15611  00 49 29.257  -24 57 08.33  23.7i 14WZ601   W84  C~55TD      
2018 11  15.19953  00 49 29.091  -24 57 07.77  23.6i 14WZ601   W84  C~55TD      
2018 11  29.10036  00 48 44.540  -24 51 53.67  23.5r 14WZ601   W84  C~55TD      
2018 11  29.10174  00 48 44.528  -24 51 53.78  23.9g 14WZ601   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     0.10       0.00    -0.06
     2   0.0000     -0.20    -0.04       0.21     0.04
     3   0.0084    -61.88    -0.05     128.82     0.08
     4   1.1197   7616.49    -0.10    2009.05    -0.25
     5   1.1198   7617.45     0.06    2010.11     0.06
     6   1.8024  18806.24    -0.24   -1314.34     0.14
     7   1.8024  18806.43     0.26   -1314.64    -0.14
     8   1.9471  15071.23    -0.02    -538.84    -0.04
     9   1.9662  14728.31     0.14    -298.22     0.04
    10   1.9689  14684.57    -0.15    -262.32     0.15
    11   2.9486  22136.52    -0.11    -426.31    -0.09
    12   2.9764  21642.11     0.17     -66.86     0.12
    13   2.9982  21348.62     0.09     244.49    -0.01
    14   2.9982  21348.28    -0.20     244.42    -0.13
    15   3.0172  21166.55     0.06     533.95     0.10
    16   3.0174  21164.75     0.04     537.36    -0.05
    17   3.8417  31943.76     0.10   -1113.17     0.04
    18   3.9920  28439.84    -0.05     247.35     0.11
    19   3.9921  28438.14    -0.11     248.99    -0.02
    20   4.0302  28064.78     0.10     830.18    -0.02
    21   4.0302  28064.58    -0.07     830.17    -0.09

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.

14WZ601    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        95.370    95.503    95.237
ecceobj         0.625     0.625     0.624
incobj         27.743    27.743    27.743
qmin           34.678    34.807    34.741
qmax          158.137   157.949   157.682
amean          94.251    94.463    94.158
amin           92.546    92.781    92.147
amax           96.822    96.858    96.650
emean           0.615     0.615     0.614
emin            0.596     0.598     0.592
emax            0.633     0.632     0.631
imean          26.813    26.948    26.819
imin           25.799    25.940    25.849
imax           28.295    28.235    28.456
excite_mean     0.763     0.764     0.762
fracstop        1.000     1.000     1.000
cjmean          2.809     2.809     2.809

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       191.9     198.0     176.3
kozaiamp        180.0     180.0     180.0