Orbit Fit and Astrometric record for 14RK86

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: 14RK86    
# Created Sat Dec  4 02:12:40 2021
# Orbit generated from Bernstein formalism
# Fitting     15 observations of     15
# Arc:   4.96y
# First observation: 2013/09/23
#  Last observation: 2018/09/10
Preliminary a, adot, b, bdot, g, gdot:
   0.002171   0.040336   0.000290   0.005791   0.031753   0.000000
# Chi-squared of fit:     3.90 DOF:     24 RMS:  0.09
# Min/Max residuals:    -0.22    0.20
# Exact a, adot, b, bdot, g, gdot:
  2.171480E-05  4.475427E-02  2.816086E-06  6.409186E-03  3.307475E-02  2.582355E-02
# Covariance matrix:
  4.1547E-13 -3.6663E-13  1.7922E-14 -4.2548E-14 -4.1096E-13 -1.5865E-12
 -3.6663E-13  6.2589E-13 -3.7558E-14  8.2861E-14  3.6214E-13  3.2167E-12
  1.7922E-14 -3.7558E-14  2.7612E-13 -8.5029E-14  2.2533E-14 -2.0241E-13
 -4.2548E-14  8.2861E-14 -8.5029E-14  5.2566E-14  2.9231E-13  4.7151E-13
 -4.1096E-13  3.6214E-13  2.2533E-14  2.9231E-13  2.6854E-11  3.9269E-12
 -1.5865E-12  3.2167E-12 -2.0241E-13  4.7151E-13  3.9269E-12  1.7763E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -25.306749  -63.340836   -0.902899   -0.187168   -0.396037  2456559.499838
# Heliocentric elements and errors
Epoch:              2456550.5000  =  2013/09/15
Mean Anomaly:            0.84416 +/-     0.014
Argument of Peri:      223.18406 +/-     0.027
Long of Asc Node:        8.19016 +/-     0.001
Inclination:            26.38551 +/-     0.000
Eccentricity:         0.94114578 +/-    0.0006
Semi-Major Axis:    374.17437565 +/-    4.1171
Time of Perihelion: 2450351.3453 +/-       1.4
Perihelion:          22.02174133 +/-    0.3382
Aphelion:           726.32700998 +/-    7.9953
Period (y)             7238.0115 +/-    119.46
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           13.26750798 +/-    0.0019
Ecliptic Y          -24.41090904 +/-    0.0038
Ecliptic Z          -12.92411976 +/-    0.0020
Ecliptic XDOT         0.00427347 +/-    0.0000
Ecliptic YDOT        -0.00026877 +/-    0.0000
Ecliptic ZDOT        -0.00043399 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.64232562 +/-    0.0033
Geocenter to KBO     30.23454422 +/-    0.0047
# Hcoef:  8.10

The following table shows the complete astrometric record for 14RK86. 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 (14RK86) followed by the observatory code and reference code for the source of the astrometry.

2013 09  23.99906  20 21 30.830  -45 31 32.68  23.1i 14RK86    W84  C~52Tw      
2013 09  24.05814  20 21 30.625  -45 31 30.29  23.3g 14RK86    W84  C~52Tw      
2013 09  24.05954  20 21 30.626  -45 31 30.23  22.7r 14RK86    W84  C~52Tw      
2014 09  11.99616  20 35 28.829  -44 36 19.13  23.3r 14RK86    W84  C~52Tw      
2014 09  23.99604  20 34 32.700  -44 30 01.23  22.3i 14RK86    W84  C~52Tw      
2014 09  25.01828  20 34 28.839  -44 29 23.37  23.1i 14RK86    W84  C~52Tw      
2014 09  30.01029  20 34 12.435  -44 26 06.20  22.6z 14RK86    W84  C~52Tw      
2015 09  12.06931  20 47 27.738  -43 31 56.15  23.1r 14RK86    W84  C~52Tw      
2016 09  23.00320  20 57 25.743  -42 22 09.59  23.2r 14RK86    W84  C~52Tw      
2016 09  23.00457  20 57 25.727  -42 22 09.46  24.1g 14RK86    W84  C~52Tw      
2017 09  12.08501  21 08 25.726  -41 20 48.74  23.7r 14RK86    W84  C~52Tw      
2017 09  23.05198  21 07 28.895  -41 17 22.88  23.1i 14RK86    W84  C~52Tw      
2017 09  23.05337  21 07 28.875  -41 17 22.70  23.5r 14RK86    W84  C~52Tw      
2017 09  23.05474  21 07 28.857  -41 17 22.70  24.0g 14RK86    W84  C~52Tw      
2018 09  10.20010  21 17 53.051  -40 15 52.78  24.5g 14RK86    W84  C~52Tw      

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    -0.07       0.00     0.05
     2   0.0002     -1.47    -0.04       2.86    -0.00
     3   0.0002     -1.45     0.02       2.92    -0.02
     4   0.9665   9453.23    -0.02     738.32    -0.14
     5   0.9993   8990.47     0.20    1276.81    -0.03
     6   1.0021   8962.04    -0.06    1325.17     0.03
     7   1.0158   8851.68     0.03    1565.34     0.14
     8   1.9660  18060.97     0.01    1981.34     0.02
     9   2.9980  25755.21     0.05    3663.99    -0.14
    10   2.9980  25755.09    -0.02    3664.17    -0.01
    11   3.9674  34145.78    -0.22    4344.21     0.07
    12   3.9974  33621.92     0.10    4786.87    -0.13
    13   3.9974  33621.78     0.02    4787.13     0.07
    14   3.9974  33621.59    -0.12    4787.21     0.09
    15   4.9615  41866.40     0.12    5366.59     0.00

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.

14RK86    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj       363.113   378.355   349.108
ecceobj         0.939     0.942     0.937
incobj         26.405    26.405    26.405
qmin           19.687    19.473    19.756
qmax          874.258   939.203   833.402
amean         369.861   386.454   344.841
amin          314.526   325.030   276.192
amax          448.379   480.644   427.919
emean           0.939     0.941     0.935
emin            0.925     0.926     0.915
emax            0.950     0.956     0.948
imean          27.462    27.575    27.595
imin           25.637    25.539    25.679
imax           28.907    29.333    29.215
excite_mean     1.047     1.049     1.043
fracstop        0.573     0.659     0.610
cjmean          2.210     2.211     2.211

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       228.6     228.5     229.8
kozaiamp          7.6       7.4       8.7