Orbit Fit and Astrometric record for 14WG602

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: 14WG602   
# Created Sat Dec  4 02:13:00 2021
# Orbit generated from Bernstein formalism
# Fitting     25 observations of     25
# Arc:   3.99y
# First observation: 2014/11/21
#  Last observation: 2018/11/16
Preliminary a, adot, b, bdot, g, gdot:
   0.000010   0.025289  -0.000068   0.002040   0.025484   0.000000
# Chi-squared of fit:     9.35 DOF:     44 RMS:  0.11
# Min/Max residuals:    -0.27    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.596162E-05  2.529686E-02  1.108752E-06  2.020257E-03  2.520441E-02  1.027545E-03
# Covariance matrix:
  2.0938E-13 -1.8135E-13  6.2132E-15 -9.2100E-15 -2.9984E-14 -1.3051E-12
 -1.8135E-13  3.5551E-13 -1.1089E-14  2.1589E-14  2.4857E-14  3.4499E-12
  6.2132E-15 -1.1089E-14  1.6722E-13 -6.5301E-14 -3.1267E-14 -1.4810E-13
 -9.2100E-15  2.1589E-14 -6.5301E-14  4.0075E-14  1.8664E-14  2.4982E-13
 -2.9984E-14  2.4857E-14 -3.1267E-14  1.8664E-14  3.0488E-13  5.4627E-13
 -1.3051E-12  3.4499E-12 -1.4810E-13  2.4982E-13  5.4627E-13  3.7697E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -24.299671    5.975438   -0.783658   -0.247760   -0.549212  2456982.703238
# Heliocentric elements and errors
Epoch:              2456980.5000  =  2014/11/19
Mean Anomaly:           58.67629 +/-     0.066
Argument of Peri:      215.66966 +/-     0.089
Long of Asc Node:       84.98078 +/-     0.001
Inclination:            24.43386 +/-     0.000
Eccentricity:         0.06661007 +/-    0.0002
Semi-Major Axis:     41.52709959 +/-    0.0045
Time of Perihelion: 2441049.0243 +/-      17.9
Perihelion:          38.76097662 +/-    0.0108
Aphelion:            44.29322257 +/-    0.0111
Period (y)              267.6120 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.47902932 +/-    0.0008
Ecliptic Y            4.60820988 +/-    0.0001
Ecliptic Z          -16.32689479 +/-    0.0004
Ecliptic XDOT        -0.00009932 +/-    0.0000
Ecliptic YDOT         0.00274796 +/-    0.0000
Ecliptic ZDOT         0.00015418 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.23086715 +/-    0.0007
Geocenter to KBO     39.67560266 +/-    0.0009
# Hcoef:  7.29

The following table shows the complete astrometric record for 14WG602. 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 (14WG602) followed by the observatory code and reference code for the source of the astrometry.

2014 11  21.20246  01 01 50.942  -19 51 55.39  23.4i 14WG602   W84  C~55TE      
2014 11  21.20657  01 01 50.930  -19 51 55.46  24.6g 14WG602   W84  C~55TE      
2014 12  15.12527  01 00 50.632  -19 43 20.79  23.2i 14WG602   W84  C~55TE      
2014 12  20.12305  01 00 44.545  -19 40 35.68  23.6r 14WG602   W84  C~55TE      
2014 12  22.05862  01 00 42.848  -19 39 26.82  23.5r 14WG602   W84  C~55TE      
2014 12  24.10280  01 00 41.443  -19 38 11.52  23.1i 14WG602   W84  C~55TE      
2015 01  09.07192  01 00 45.110  -19 26 54.10  23.7r 14WG602   W84  C~55TE      
2015 11  06.10505  01 08 13.817  -19 09 46.33  22.9i 14WG602   W84  C~55TE      
2015 11  06.10643  01 08 13.816  -19 09 46.36  23.5r 14WG602   W84  C~55TE      
2015 11  06.10780  01 08 13.818  -19 09 46.08  24.3g 14WG602   W84  C~55TE      
2016 08  14.41588  01 19 21.497  -17 44 35.65  22.4i 14WG602   W84  C~55TE      
2016 08  16.24342  01 19 17.537  -17 45 51.37  22.7z 14WG602   W84  C~55TE      
2016 10  23.15509  01 14 34.267  -18 23 48.10  23.2i 14WG602   W84  C~55TE      
2016 11  05.12340  01 13 32.801  -18 25 58.66  23.3i 14WG602   W84  C~55TE      
2016 11  05.12617  01 13 32.802  -18 25 58.65  24.1g 14WG602   W84  C~55TE      
2016 11  07.12975  01 13 23.834  -18 26 06.17  23.3i 14WG602   W84  C~55TE      
2016 11  30.15696  01 11 57.075  -18 23 23.20  23.6r 14WG602   W84  C~55TE      
2016 12  23.04927  01 11 11.736  -18 13 21.62  22.8z 14WG602   W84  C~55TE      
2017 10  21.14666  01 20 00.089  -17 38 43.70  23.5i 14WG602   W84  C~55TE      
2017 10  21.14802  01 20 00.077  -17 38 43.50  23.3r 14WG602   W84  C~55TE      
2017 11  23.03126  01 17 34.275  -17 41 11.96  22.2z 14WG602   W84  C~55TE      
2017 11  27.05386  01 17 20.330  -17 40 26.68  23.0i 14WG602   W84  C~55TE      
2017 12  11.05487  01 16 41.462  -17 36 02.73  23.9r 14WG602   W84  C~55TE      
2018 10  18.27927  01 25 26.891  -16 52 48.53  22.9r 14WG602   W84  C~55TE      
2018 11  16.17199  01 23 12.041  -16 57 28.95  22.7i 14WG602   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    -0.02       0.00     0.03
     2   0.0000     -0.18    -0.04       0.01    -0.09
     3   0.0655   -556.38    -0.05     824.51    -0.17
     4   0.0792   -565.21     0.05    1010.45    -0.12
     5   0.0845   -558.11     0.10    1083.02     0.01
     6   0.0901   -544.57    -0.09    1159.70    -0.03
     7   0.1338   -213.57     0.02    1753.05    -0.10
     8   0.9580   5976.49    -0.11     -10.59     0.07
     9   0.9580   5976.46    -0.05     -10.61     0.01
    10   0.9580   5976.61     0.18     -10.37     0.22
    11   1.7309  16789.42     0.13     446.95     0.27
    12   1.7359  16704.60    -0.11     403.96     0.15
    13   1.9218  12052.95    -0.11     135.66    -0.02
    14   1.9573  11206.23    -0.03     400.36     0.04
    15   1.9574  11206.24     0.15     400.36    -0.02
    16   1.9628  11087.76     0.11     449.26     0.06
    17   2.0259  10043.89    -0.14    1133.53     0.16
    18   2.0886   9721.95    -0.03    1956.36    -0.06
    19   2.9157  17444.26     0.01     518.29    -0.27
    20   2.9157  17444.20     0.05     518.55    -0.04
    21   3.0057  15497.16    -0.10    1308.88     0.02
    22   3.0167  15337.32     0.03    1437.63    -0.02
    23   3.0550  14952.51     0.07    1920.28     0.05
    24   3.9071  22915.46     0.00     894.39    -0.24
    25   3.9862  21039.16    -0.04    1514.72     0.11

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.

14WG602    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.886    41.901    41.872
ecceobj         0.072     0.073     0.072
incobj         24.444    24.444    24.444
qmin           38.109    38.066    38.074
qmax           45.512    45.523    45.451
amean          41.687    41.702    41.673
amin           41.370    41.381    41.363
amax           42.023    42.045    42.011
emean           0.070     0.070     0.070
emin            0.058     0.059     0.057
emax            0.083     0.083     0.082
imean          22.768    22.769    22.767
imin           22.370    22.385    22.368
imax           23.178    23.191    23.200
excite_mean     0.393     0.393     0.393
fracstop        1.000     1.000     1.000
cjmean          2.888     2.888     2.888

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       179.4     179.3     179.4
kozaiamp        180.0     180.0     180.0