Orbit Fit and Astrometric record for 14WL616

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: 14WL616   
# Created Sun Dec 22 02:10:13 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     61 observations of     61
# Arc:  20.90y
# First observation: 2003/01/29
#  Last observation: 2023/12/24
# Chi-squared of fit:    41.35 DOF:    116 RMS:  0.15
# Min/Max residuals:    -0.55    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.558501E-05  2.723531E-02  7.146340E-06  1.046075E-02  2.656830E-02  8.108645E-04
# Covariance matrix:
  5.2850E-13 -6.9046E-14  1.1893E-13 -2.0740E-14 -6.7754E-14 -7.3397E-14
 -6.9046E-14  1.0401E-14 -2.0104E-14  3.5106E-15  9.4828E-15  1.2426E-14
  1.1893E-13 -2.0104E-14  2.4957E-13 -2.2195E-14 -2.4012E-14 -2.7060E-14
 -2.0740E-14  3.5106E-15 -2.2195E-14  2.4855E-15  3.9978E-15  4.7224E-15
 -6.7754E-14  9.4828E-15 -2.4012E-14  3.9978E-15  9.4164E-14  1.4036E-14
 -7.3397E-14  1.2426E-14 -2.7060E-14  4.7224E-15  1.4036E-14  1.6714E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
  -13.723205  109.803458   -0.324839   -0.219437   -0.898609  2452668.930262
# Heliocentric elements and errors
Epoch:              2452668.5000  =  2003/01/29
Mean Anomaly:            9.11163 +/-     0.002
Argument of Peri:      312.95308 +/-     0.003
Long of Asc Node:      141.32419 +/-     0.000
Inclination:            24.79868 +/-     0.000
Eccentricity:         0.18757099 +/-    0.0000
Semi-Major Axis:     47.23548717 +/-    0.0028
Time of Perihelion: 2449667.3038 +/-       0.7
Perihelion:          38.37547994 +/-    0.0029
Aphelion:            56.09549440 +/-    0.0037
Period (y)              324.6466 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -13.00896518 +/-    0.0002
Ecliptic Y           35.16674473 +/-    0.0004
Ecliptic Z           -8.92886581 +/-    0.0001
Ecliptic XDOT        -0.00276163 +/-    0.0000
Ecliptic YDOT        -0.00063820 +/-    0.0000
Ecliptic ZDOT         0.00102758 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.54420694 +/-    0.0004
Geocenter to KBO     37.63886418 +/-    0.0004
# Hcoef:  5.70

The following table shows the complete astrometric record for 14WL616. 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 (14WL616) followed by the observatory code and reference code for the source of the astrometry.

2003 01  29.429519 07 17 43.62   +08 23 24.6         14WL616   T14  C~6oD9      
2003 01  29.431235 07 17 43.61   +08 23 24.6         14WL616   T14  C~6oD9      
2010 01  06.52128  08 05 40.90   +10 42 42.9         14WL616   F51  C~6oD9      
2010 01  06.53045  08 05 40.84   +10 42 43.4         14WL616   F51  C~6oD9      
2010 02  08.36460  08 02 52.49   +10 55 17.2         14WL616   F51  C~6oD9      
2010 02  08.37437  08 02 52.42   +10 55 17.9   22.3g 14WL616   F51  C~6oD9      
2010 11  03.62250  08 15 19.89   +10 55 12.2         14WL616   F51  C~6oD9      
2010 11  03.63371  08 15 19.88   +10 55 12.1   21.2i 14WL616   F51  C~6oD9      
2011 01  23.54432  08 10 46.16   +11 07 28.2         14WL616   F51  C~6oD9      
2012 01  15.54645  08 18 00.85   +11 22 33.4   21.4i 14WL616   F51  C~6oD9      
2012 01  15.55914  08 18 00.77   +11 22 33.4   21.5i 14WL616   F51  C~6oD9      
2012 01  21.52934  08 17 29.90   +11 24 49.6   21.5r 14WL616   F51  C~6oD9      
2012 01  21.54085  08 17 29.83   +11 24 50.0   21.5r 14WL616   F51  C~6oD9      
2012 10  30.61019  08 28 03.13   +11 30 05.2         14WL616   F51  C~6oD9      
2013 01  07.52782  08 25 08.55   +11 37 30.5         14WL616   F51  C~6oD9      
2013 01  07.54077  08 25 08.46   +11 37 30.5   21.4r 14WL616   F51  C~6oD9      
2013 01  21.47670  08 23 57.80   +11 42 41.4   21.3i 14WL616   F51  C~6oD9      
2013 01  21.48965  08 23 57.73   +11 42 41.9   21.3i 14WL616   F51  C~6oD9      
2013 11  17.56130  08 34 22.36   +11 45 07.8   21.4z 14WL616   F51  C~6oD9      
2013 12  25.61070  08 32 38.53   +11 50 15.1   21.4i 14WL616   F51  C~6oD9      
2013 12  25.62264  08 32 38.50   +11 50 15.2   21.6i 14WL616   F51  C~6oD9      
2014 01  25.32252  08 30 10.30   +12 01 05.5         14WL616   F51  C~6oD9      
2014 11  29.51043  08 40 28.42   +12 01 21.8   22.1w 14WL616   F51  C~77rn      
2014 11  29.52302  08 40 28.39   +12 01 22.0   21.9w 14WL616   F51  C~77ro      
2014 11  29.53561  08 40 28.36   +12 01 21.8   21.9w 14WL616   F51  C~77ro      
2014 11  29.54824  08 40 28.35   +12 01 22.0   22.0w 14WL616   F51  C~77ro      
2015 01  26.50247  08 36 35.63   +12 17 45.8   21.7w 14WL616   F51  C~77ro      
2015 01  26.51618  08 36 35.56   +12 17 46.4   21.6w 14WL616   F51  C~77ro      
2015 01  26.54372  08 36 35.41   +12 17 47.0   21.6w 14WL616   F51  C~77ro      
2015 02  18.28618  08 34 42.18   +12 28 05.8   21.8w 14WL616   F51  C~77ro      
2015 02  18.29914  08 34 42.12   +12 28 05.9   21.9w 14WL616   F51  C~77ro      
2015 02  18.32468  08 34 41.99   +12 28 06.6   21.6w 14WL616   F51  C~77ro      
2015 04  05.107265 08 32 18.45   +12 47 11.3   21.2i 14WL616   W84  C~6oD9      
2016 01  14.253561 08 44 07.37   +12 28 10.7   21.7r 14WL616   W84  C~6oD9      
2016 01  14.254754 08 44 07.36   +12 28 10.8   22.2g 14WL616   W84  C~6oD9      
2016 01  16.208281 08 43 57.75   +12 28 57.1   21.7r 14WL616   W84  C~6oD9      
2016 01  16.209662 08 43 57.75   +12 28 57.2   22.3g 14WL616   W84  C~6oD9      
2017 01  26.38033  08 49 30.19   +12 48 30.2   21.8w 14WL616   F51  C~77ro      
2017 01  26.39112  08 49 30.12   +12 48 30.5   21.7w 14WL616   F51  C~77ro      
2017 01  26.40191  08 49 30.07   +12 48 30.7   21.7w 14WL616   F51  C~77ro      
2017 01  26.41285  08 49 30.01   +12 48 31.2   21.7w 14WL616   F51  C~77ro      
2017 02  03.46768  08 48 49.02   +12 52 11.1   21.7w 14WL616   F51  C~77ro      
2017 02  03.47906  08 48 48.96   +12 52 11.4   21.6w 14WL616   F51  C~77ro      
2017 02  03.49042  08 48 48.88   +12 52 11.2   21.7w 14WL616   F51  C~77ro      
2017 02  03.5018   08 48 48.84   +12 52 12.1   21.7w 14WL616   F51  C~77ro      
2017 02  19.23983  08 47 31.45   +12 59 35.5   21.8w 14WL616   F51  C~77ro      
2017 02  19.25042  08 47 31.40   +12 59 35.8   22.2w 14WL616   F51  C~77ro      
2017 02  19.261    08 47 31.36   +12 59 36.1   21.6w 14WL616   F51  C~77ro      
2017 02  19.27155  08 47 31.30   +12 59 36.3   21.8w 14WL616   F51  C~77ro      
2018 04  13.979037 08 51 15.80   +13 35 04.5   22.5g 14WL616   W84  C~6oD9      
2018 04  13.980290 08 51 15.79   +13 35 04.5   21.7i 14WL616   W84  C~6oD9      
2018 12  10.250628 09 05 30.17   +12 59 44.7   21.7r 14WL616   W84  C~6oD9      
2018 12  11.312538 09 05 27.60   +12 59 58.0   22.3g 14WL616   W84  C~6oD9      
2019 01  27.257953 09 02 18.27   +13 16 39.9   21.5i 14WL616   W84  C~6oD9      
2021 02  16.176660 09 13 19.53   +13 52 03.5   21.6i 14WL616   W84  C~6oD9      
2023 11  19.90529  09 36 50.76   +13 53 17.6   22.1w 14WL616   O18  C~7X8Z      
2023 11  19.90963  09 36 50.76   +13 53 17.9   22.2w 14WL616   O18  C~7X8Z      
2023 11  19.91397  09 36 50.77   +13 53 17.8   22.4w 14WL616   O18  C~7X8Z      
2023 12  24.605920 09 36 06.728  +14 00 29.42  21.8w 14WL616   F51  C~7dJF      
2023 12  24.617611 09 36 06.686  +14 00 29.74  21.8w 14WL616   F51  C~7dJF      
2023 12  24.641149 09 36 06.630  +14 00 30.22  22.0w 14WL616   F51  C~7dJF      

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    -0.21
     2   0.0000      0.00     0.08       0.00    -0.25
     3   6.9380      0.00    -0.19       0.00    -0.21
     4   6.9380      0.00    -0.39       0.00     0.12
     5   7.0279      0.00     0.24       0.00    -0.21
     6   7.0279      0.00    -0.08       0.00     0.23
     7   7.7623      0.00     0.07       0.00     0.01
     8   7.7624      0.00    -0.06       0.00    -0.00
     9   7.9839      0.00    -0.09       0.00    -0.04
    10   8.9613      0.00     0.09       0.00     0.28
    11   8.9613      0.00    -0.12       0.00     0.00
    12   8.9777      0.00    -0.01       0.00     0.16
    13   8.9777      0.00    -0.15       0.00     0.29
    14   9.7527      0.00     0.16       0.00     0.20
    15   9.9414      0.00     0.30       0.00     0.25
    16   9.9414      0.00    -0.08       0.00    -0.01
    17   9.9796      0.00    -0.08       0.00     0.15
    18   9.9796      0.00    -0.11       0.00     0.33
    19  10.8012      0.00     0.09       0.00     0.11
    20  10.9054      0.00    -0.29       0.00    -0.08
    21  10.9054      0.00     0.02       0.00    -0.17
    22  10.9894      0.00     0.21       0.00    -0.17
    23  11.8332      0.00     0.10       0.00    -0.03
    24  11.8332      0.00     0.04       0.00     0.10
    25  11.8333      0.00    -0.02       0.00    -0.17
    26  11.8333      0.00     0.22       0.00    -0.04
    27  11.9920      0.00     0.12       0.00    -0.08
    28  11.9920      0.00     0.15       0.00     0.16
    29  11.9921      0.00     0.05       0.00     0.05
    30  12.0544      0.00    -0.04       0.00     0.36
    31  12.0544      0.00    -0.02       0.00     0.10
    32  12.0545      0.00    -0.15       0.00     0.08
    33  12.1798      0.00     0.03       0.00    -0.00
    34  12.9578      0.00     0.12       0.00    -0.06
    35  12.9578      0.00     0.06       0.00     0.01
    36  12.9631      0.00    -0.05       0.00    -0.09
    37  12.9631      0.00     0.06       0.00    -0.02
    38  13.9930      0.00     0.04       0.00     0.02
    39  13.9931      0.00    -0.18       0.00     0.03
    40  13.9931      0.00    -0.09       0.00    -0.06
    41  13.9931      0.00    -0.14       0.00     0.14
    42  14.0152      0.00     0.03       0.00    -0.02
    43  14.0152      0.00     0.01       0.00    -0.03
    44  14.0152      0.00    -0.31       0.00    -0.55
    45  14.0153      0.00    -0.03       0.00     0.04
    46  14.0583      0.00    -0.09       0.00    -0.11
    47  14.0584      0.00    -0.09       0.00    -0.11
    48  14.0584      0.00     0.06       0.00    -0.12
    49  14.0584      0.00    -0.08       0.00    -0.21
    50  15.2048      0.00     0.11       0.00    -0.05
    51  15.2048      0.00    -0.02       0.00    -0.07
    52  15.8626      0.00     0.07       0.00    -0.11
    53  15.8655      0.00     0.01       0.00    -0.02
    54  15.9941      0.00     0.11       0.00     0.01
    55  18.0500      0.00     0.17       0.00    -0.14
    56  20.8062      0.00    -0.10       0.00    -0.12
    57  20.8062      0.00    -0.13       0.00     0.17
    58  20.8063      0.00     0.00       0.00     0.05
    59  20.9012      0.00     0.06       0.00    -0.02
    60  20.9013      0.00    -0.05       0.00     0.06
    61  20.9013      0.00     0.14       0.00     0.07

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.

14WL616    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        47.076    47.076    47.076
ecceobj         0.185     0.185     0.185
incobj         24.862    24.862    24.862
qmin           37.544    37.532    37.564
qmax           56.587    56.596    56.585
amean          46.867    46.867    46.867
amin           46.470    46.472    46.470
amax           47.334    47.338    47.332
emean           0.181     0.181     0.181
emin            0.166     0.166     0.166
emax            0.196     0.196     0.196
imean          23.622    23.622    23.622
imin           23.198    23.197    23.200
imax           23.997    24.004    24.002
excite_mean     0.440     0.440     0.440
fracstop        1.000     1.000     1.000
cjmean          2.891     2.891     2.891

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       170.6     170.7     170.5
kozaiamp        180.0     180.0     180.0