Orbit Fit and Astrometric record for 14WD602

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: 14WD602   
# Created Wed Dec  8 02:12:59 2021
# Orbit generated from Bernstein formalism
# Fitting     21 observations of     21
# Arc:   3.02y
# First observation: 2014/11/18
#  Last observation: 2017/11/24
Preliminary a, adot, b, bdot, g, gdot:
   0.000214   0.029012   0.000181   0.009789   0.028442   0.000000
# Chi-squared of fit:     4.39 DOF:     36 RMS:  0.08
# Min/Max residuals:    -0.16    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.584983E-05  2.933748E-02  6.132419E-06  9.901463E-03  2.781226E-02  4.247264E-03
# Covariance matrix:
  4.9670E-13 -4.2603E-13  3.0558E-14 -9.4441E-14 -2.1206E-13 -3.0213E-12
 -4.2603E-13  1.1298E-12 -2.4256E-13  3.7229E-13  7.6463E-14  1.1540E-11
  3.0558E-14 -2.4256E-13  3.3287E-13 -1.9999E-13  3.9046E-14 -2.7387E-12
 -9.4441E-14  3.7229E-13 -1.9999E-13  1.9435E-13  5.3206E-15  4.0697E-12
 -2.1206E-13  7.6463E-14  3.9046E-14  5.3206E-15  2.6553E-13  2.9392E-13
 -3.0213E-12  1.1540E-11 -2.7387E-12  4.0697E-12  2.9392E-13  1.2588E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -34.853539  -12.612093   -0.917168   -0.211684   -0.304302  2456979.689768
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:           36.50619 +/-     0.024
Argument of Peri:      240.46717 +/-     0.050
Long of Asc Node:       46.88532 +/-     0.001
Inclination:            39.11194 +/-     0.000
Eccentricity:         0.22228628 +/-    0.0004
Semi-Major Axis:     42.94286920 +/-    0.0103
Time of Perihelion: 2446547.3499 +/-       5.7
Perihelion:          33.39725872 +/-    0.0180
Aphelion:            52.48847968 +/-    0.0205
Period (y)              281.4134 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.35318064 +/-    0.0005
Ecliptic Y           -5.62680424 +/-    0.0001
Ecliptic Z          -20.54767377 +/-    0.0004
Ecliptic XDOT         0.00150473 +/-    0.0000
Ecliptic YDOT         0.00261680 +/-    0.0000
Ecliptic ZDOT         0.00056102 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.26950561 +/-    0.0005
Geocenter to KBO     35.95536731 +/-    0.0007
# Hcoef:  7.61

The following table shows the complete astrometric record for 14WD602. 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 (14WD602) followed by the observatory code and reference code for the source of the astrometry.

2014 11  18.18899  00 17 58.316  -36 33 18.79  23.5r 14WD602   W84  C~55TE      
2014 12  11.07860  00 17 02.189  -36 12 58.09  24.1g 14WD602   W84  C~55TE      
2014 12  12.11291  00 17 01.167  -36 11 52.23  23.3r 14WD602   W84  C~55TE      
2015 08  17.31558  00 32 38.520  -34 56 29.19  24.4g 14WD602   W84  C~55TE      
2015 08  24.30955  00 32 05.994  -35 02 16.09  22.9i 14WD602   W84  C~55TE      
2015 08  24.31091  00 32 05.990  -35 02 16.17  22.9r 14WD602   W84  C~55TE      
2015 08  24.31228  00 32 05.987  -35 02 16.06  23.9g 14WD602   W84  C~55TE      
2016 09  07.27638  00 36 16.389  -33 51 46.01  22.8i 14WD602   W84  C~55TE      
2016 09  07.27776  00 36 16.371  -33 51 46.25  23.2r 14WD602   W84  C~55TE      
2016 10  07.17746  00 33 09.917  -34 04 46.91  23.6r 14WD602   W84  C~55TE      
2016 10  07.17882  00 33 09.913  -34 04 47.02  22.9i 14WD602   W84  C~55TE      
2016 10  07.18019  00 33 09.903  -34 04 46.96  23.8g 14WD602   W84  C~55TE      
2016 10  11.02199  00 32 45.484  -34 05 21.18  22.7z 14WD602   W84  C~55TE      
2016 11  08.22786  00 30 04.258  -34 00 48.04  22.2z 14WD602   W84  C~55TE      
2017 10  13.27351  00 37 54.575  -32 45 01.48  22.9z 14WD602   W84  C~55TE      
2017 11  18.10601  00 34 43.450  -32 36 36.42  23.4i 14WD602   W84  C~55TE      
2017 11  18.10738  00 34 43.444  -32 36 36.38  23.6r 14WD602   W84  C~55TE      
2017 11  18.10875  00 34 43.434  -32 36 36.35  23.3g 14WD602   W84  C~55TE      
2017 11  24.17297  00 34 20.767  -32 32 48.26  23.6r 14WD602   W84  C~55TE      
2017 11  24.17436  00 34 20.753  -32 32 48.03  22.8i 14WD602   W84  C~55TE      
2017 11  24.17575  00 34 20.754  -32 32 48.25  24.1g 14WD602   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     0.17       0.00    -0.10
     2   0.0627     -5.18    -0.05    1396.25     0.08
     3   0.0655     15.66    -0.10    1459.94    -0.01
     4   0.7450  12197.66     0.07    -322.13    -0.16
     5   0.7642  11674.63    -0.12    -413.72     0.05
     6   0.7642  11674.55    -0.10    -413.76     0.02
     7   0.7642  11674.58     0.03    -413.65     0.15
     8   1.8045  16540.02     0.18    1601.01     0.05
     9   1.8045  16539.70    -0.03    1600.92    -0.05
    10   1.8863  14139.28    -0.02    2140.26     0.06
    11   1.8864  14139.18    -0.01    2140.20    -0.05
    12   1.8864  14139.10     0.01    2140.31     0.02
    13   1.8969  13860.34     0.00    2267.74    -0.01
    14   1.9741  12274.02     0.03    3531.54    -0.05
    15   2.9024  19714.95    -0.12    4378.17    -0.13
    16   3.0005  17907.99     0.06    6075.82     0.02
    17   3.0005  17907.95     0.05    6075.90     0.02
    18   3.0005  17907.85    -0.00    6075.99     0.03
    19   3.0171  17780.68     0.01    6421.05    -0.03
    20   3.0171  17780.65     0.00    6421.34     0.18
    21   3.0171  17780.54    -0.08    6421.14    -0.10

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.

14WD602    quality flag:1

Type:       SCATNEAR  SCATEXTD  CENTAURS

axisobj        43.245    43.279    43.212
ecceobj         0.226     0.227     0.225
incobj         39.107    39.107    39.107
qmin           32.646    32.779    28.508
qmax           54.128    54.116    58.361
amean          43.135    43.221    43.126
amin           42.706    42.851    42.720
amax           43.580    43.643    43.630
emean           0.217     0.216     0.285
emin            0.195     0.192     0.206
emax            0.242     0.240     0.339
imean          38.392    38.467    36.933
imin           37.927    38.028    35.502
imax           38.866    39.018    38.586
excite_mean     0.658     0.659     0.666
fracstop        1.000     1.000     1.000
cjmean          2.530     2.529     2.531

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       201.0     178.4     171.8
kozaiamp        180.0     180.0     180.0