Orbit Fit and Astrometric record for 14WB602

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: 14WB602   
# Created Thu Dec  9 02:12:53 2021
# Orbit generated from Bernstein formalism
# Fitting     18 observations of     18
# Arc:   4.03y
# First observation: 2014/11/18
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
   0.000037   0.027696  -0.000035  -0.005538   0.027589   0.000000
# Chi-squared of fit:     6.11 DOF:     30 RMS:  0.10
# Min/Max residuals:    -0.31    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.663188E-05  2.780016E-02 -3.486866E-06 -5.555430E-03  2.638440E-02  1.401933E-03
# Covariance matrix:
  2.8642E-13 -2.2928E-13 -5.5936E-15  2.9258E-14 -5.8558E-14 -1.4636E-12
 -2.2928E-13  7.3231E-13  2.2351E-14 -1.3771E-13 -9.1063E-15  6.6253E-12
 -5.5936E-15  2.2351E-14  2.4506E-13 -8.2930E-14  4.4770E-15  2.1525E-13
  2.9258E-14 -1.3771E-13 -8.2930E-14  6.5217E-14  5.8697E-15 -1.3121E-12
 -5.8558E-14 -9.1063E-15  4.4770E-15  5.8697E-15  3.8906E-13  7.7174E-14
 -1.4636E-12  6.6253E-12  2.1525E-13 -1.3121E-12  7.7174E-14  6.3278E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -28.933391   -8.217989   -0.885626   -0.213088   -0.385866  2456979.631548
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:           26.33318 +/-     0.069
Argument of Peri:      216.66671 +/-     0.098
Long of Asc Node:      104.75243 +/-     0.001
Inclination:            30.37135 +/-     0.000
Eccentricity:         0.13756347 +/-    0.0002
Semi-Major Axis:     43.45405268 +/-    0.0069
Time of Perihelion: 2449317.2717 +/-      19.9
Perihelion:          37.47636221 +/-    0.0118
Aphelion:            49.43174314 +/-    0.0128
Period (y)              286.4532 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.39007178 +/-    0.0008
Ecliptic Y           -3.92613739 +/-    0.0001
Ecliptic Z          -18.33647905 +/-    0.0004
Ecliptic XDOT         0.00025806 +/-    0.0000
Ecliptic YDOT         0.00287183 +/-    0.0000
Ecliptic ZDOT        -0.00057480 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.29540328 +/-    0.0007
Geocenter to KBO     37.90118276 +/-    0.0009
# Hcoef:  7.72

The following table shows the complete astrometric record for 14WB602. 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 (14WB602) followed by the observatory code and reference code for the source of the astrometry.

2014 11  18.13077  00 20 29.673  -29 34 46.55  24.2r 14WB602   W84  C~55TD      
2014 11  18.17608  00 20 29.535  -29 34 45.54  24.7g 14WB602   W84  C~55TD      
2014 11  21.14066  00 20 20.898  -29 33 34.12  24.4g 14WB602   W84  C~55TD      
2014 11  21.14206  00 20 20.890  -29 33 34.02  23.5i 14WB602   W84  C~55TD      
2014 12  12.07222  00 19 45.305  -29 21 26.12  22.7i 14WB602   W84  C~55TD      
2015 11  14.05695  00 27 52.756  -29 09 23.19  23.9r 14WB602   W84  C~55TD      
2016 08  14.38935  00 42 05.871  -28 02 19.33  24.3g 14WB602   W84  C~55TD      
2016 11  04.09479  00 35 33.798  -28 42 53.21  23.3r 14WB602   W84  C~55TD      
2017 09  24.23315  00 46 05.664  -28 02 27.22  24.2g 14WB602   W84  C~55TD      
2017 09  24.23453  00 46 05.635  -28 02 27.23  23.0r 14WB602   W84  C~55TD      
2017 09  24.23591  00 46 05.621  -28 02 27.16  23.2i 14WB602   W84  C~55TD      
2017 09  26.34959  00 45 54.404  -28 03 38.05  23.5g 14WB602   W84  C~55TD      
2017 11  09.22239  00 42 11.899  -28 12 36.27  22.7z 14WB602   W84  C~55TD      
2017 11  26.17719  00 41 12.322  -28 07 21.72  23.0i 14WB602   W84  C~55TD      
2017 12  09.04570  00 40 44.575  -28 00 20.24  24.0r 14WB602   W84  C~55TD      
2018 11  15.12889  00 48 42.199  -27 40 42.90  23.1i 14WB602   W84  C~55TE      
2018 11  29.12106  00 47 55.865  -27 35 43.25  23.8r 14WB602   W84  C~55TE      
2018 11  29.12243  00 47 55.860  -27 35 43.26  24.7g 14WB602   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     0.01       0.00     0.03
     2   0.0001     -1.15     0.04       1.72    -0.02
     3   0.0082    -69.31    -0.05     116.40     0.08
     4   0.0082    -69.36    -0.06     116.53     0.16
     5   0.0655   -155.08     0.01     975.90    -0.05
     6   0.9882   5845.62     0.14   -1310.41    -0.11
     7   1.7392  17676.11    -0.08   -3179.16    -0.03
     8   1.9629  11940.93     0.10   -2781.45    -0.04
     9   2.8504  20453.60     0.12   -4771.75    -0.31
    10   2.8504  20453.26    -0.11   -4771.57    -0.13
    11   2.8504  20453.13    -0.12   -4771.41     0.01
    12   2.8562  20287.43    -0.02   -4758.32    -0.11
    13   2.9763  17440.09    -0.13   -3757.34     0.01
    14   3.0227  16904.82     0.09   -3092.99     0.18
    15   3.0579  16790.56    -0.06   -2543.54     0.15
    16   3.9918  22931.42    -0.07   -4689.05     0.03
    17   4.0301  22545.12     0.11   -4115.86     0.10
    18   4.0301  22545.05     0.07   -4115.83     0.06

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.

14WB602    quality flag:2

Type:         7:4EII    7:4EII  SCATNEAR

axisobj        43.834    43.857    43.811
ecceobj         0.145     0.145     0.144
incobj         30.371    30.372    30.371
qmin           33.601    37.235    36.116
qmax           54.394    50.502    51.648
amean          43.724    43.724    43.722
amin           43.292    43.369    43.296
amax           44.212    44.119    44.193
emean           0.161     0.065     0.147
emin            0.095     0.037     0.130
emax            0.231     0.146     0.171
imean          28.324    29.562    28.615
imin           27.109    28.716    28.127
imax           29.411    29.947    28.908
excite_mean     0.503     0.498     0.501
fracstop        1.000     1.000     1.000
cjmean          2.781     2.781     2.782

libcent 0       180.7     182.7    -180.0
libamp  0       149.5     110.6    -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       171.3     180.2     180.3
kozaiamp        180.0      76.4     180.0