Orbit Fit and Astrometric record for 14VK43

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: 14VK43    
# Created Tue Apr  1 01:10:13 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     14 observations of     14
# Arc:   5.04y
# First observation: 2013/10/04
#  Last observation: 2018/10/18
# Chi-squared of fit:     6.31 DOF:     22 RMS:  0.12
# Min/Max residuals:    -0.24    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.534410E-05  2.300716E-02  5.554933E-07  1.668642E-04  2.381290E-02  1.386358E-03
# Covariance matrix:
  6.7124E-13 -4.9767E-13 -2.0922E-15 -2.4022E-15  7.2579E-14 -3.3167E-12
 -4.9767E-13  7.2811E-13 -1.6626E-15  5.4067E-15  1.0180E-13  6.2957E-12
 -2.0922E-15 -1.6626E-15  4.4926E-13 -1.2399E-13 -2.1595E-14 -3.6410E-14
 -2.4022E-15  5.4067E-15 -1.2399E-13  4.4779E-14  4.7531E-15  5.3710E-14
  7.2579E-14  1.0180E-13 -2.1595E-14  4.7531E-15  9.2733E-13  1.8391E-12
 -3.3167E-12  6.2957E-12 -3.6410E-14  5.3710E-14  1.8391E-12  5.8889E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.340663    5.333002   -0.096133   -0.178617   -0.979545  2456569.750808
# Heliocentric elements and errors
Epoch:              2456570.5000  =  2013/10/05
Mean Anomaly:           69.01646 +/-     0.097
Argument of Peri:      196.32367 +/-     0.119
Long of Asc Node:       93.16494 +/-     0.003
Inclination:            10.11040 +/-     0.000
Eccentricity:         0.06309159 +/-    0.0003
Semi-Major Axis:     43.80675886 +/-    0.0081
Time of Perihelion: 2436267.4970 +/-      29.0
Perihelion:          41.04292074 +/-    0.0167
Aphelion:            46.57059698 +/-    0.0172
Period (y)              289.9478 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.11510038 +/-    0.0017
Ecliptic Y            4.03104735 +/-    0.0002
Ecliptic Z           -7.53795887 +/-    0.0003
Ecliptic XDOT        -0.00009247 +/-    0.0000
Ecliptic YDOT         0.00264729 +/-    0.0000
Ecliptic ZDOT        -0.00000960 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.97381220 +/-    0.0016
Geocenter to KBO     41.99404360 +/-    0.0017
# Hcoef:  7.10

The following table shows the complete astrometric record for 14VK43. 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 (14VK43) followed by the observatory code and reference code for the source of the astrometry.

2013 10  04.25003  00 36 02.098  -07 22 20.64  23.5r 14VK43    W84  C~52UT      
2013 10  04.25141  00 36 02.091  -07 22 20.49  23.3i 14VK43    W84  C~52UT      
2014 11  14.12837  00 38 11.178  -07 02 47.80  22.9i 14VK43    W84  C~52UT      
2014 11  16.04460  00 38 05.328  -07 03 02.43  23.1z 14VK43    W84  C~52UT      
2016 08  31.27584  00 52 45.086  -05 29 14.82  23.7r 14VK43    W84  C~52UT      
2016 08  31.27720  00 52 45.070  -05 29 14.86  23.1i 14VK43    W84  C~52UT      
2016 09  30.19783  00 50 45.483  -05 44 04.98  23.8r 14VK43    W84  C~52UT      
2016 09  30.19920  00 50 45.463  -05 44 04.98  23.1i 14VK43    W84  C~52UT      
2017 08  28.40085  00 57 39.563  -04 55 30.21  23.3r 14VK43    W84  C~52UT      
2017 08  28.40222  00 57 39.566  -04 55 30.37  23.5i 14VK43    W84  C~52UT      
2017 09  24.24221  00 55 57.996  -05 08 48.76  23.3r 14VK43    W84  C~52UT      
2017 09  24.24359  00 55 58.000  -05 08 48.66  23.2i 14VK43    W84  C~52UT      
2017 09  24.32739  00 55 57.649  -05 08 51.39  22.9z 14VK43    W84  C~52UT      
2018 10  18.26448  00 58 58.777  -04 47 03.09  22.9z 14VK43    W84  C~52UT      

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    -0.09
     2   0.0000      0.00     0.01       0.00     0.10
     3   1.1112      0.00    -0.00       0.00     0.09
     4   1.1165      0.00    -0.10       0.00    -0.02
     5   2.9077      0.00     0.28       0.00    -0.06
     6   2.9077      0.00     0.12       0.00    -0.06
     7   2.9896      0.00     0.10       0.00    -0.06
     8   2.9896      0.00    -0.11       0.00    -0.02
     9   3.8991      0.00    -0.24       0.00     0.14
    10   3.8991      0.00    -0.13       0.00     0.02
    11   3.9726      0.00    -0.17       0.00     0.01
    12   3.9726      0.00    -0.02       0.00     0.15
    13   3.9728      0.00     0.15       0.00    -0.13
    14   5.0377      0.00     0.17       0.00    -0.02

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.

14VK43    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.067    44.067    44.067
ecceobj         0.067     0.067     0.067
incobj         10.114    10.114    10.114
qmin           40.397    40.396    40.398
qmax           47.528    47.526    47.530
amean          43.850    43.850    43.850
amin           43.508    43.512    43.515
amax           44.215    44.213    44.210
emean           0.060     0.060     0.060
emin            0.045     0.045     0.045
emax            0.076     0.076     0.076
imean           8.251     8.251     8.251
imin            7.644     7.646     7.645
imax            8.896     8.894     8.898
excite_mean     0.156     0.156     0.156
fracstop        1.000     1.000     1.000
cjmean          3.071     3.071     3.071

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       180.6     180.6     180.6
kozaiamp        179.9     180.0     179.9