Orbit Fit and Astrometric record for 14RO86

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: 14RO86    
# Created Tue Nov 30 02:12:41 2021
# Orbit generated from Bernstein formalism
# Fitting     13 observations of     13
# Arc:   4.18y
# First observation: 2014/09/03
#  Last observation: 2018/11/06
Preliminary a, adot, b, bdot, g, gdot:
   0.000224   0.027726   0.000011   0.000972   0.026568   0.000000
# Chi-squared of fit:     3.21 DOF:     20 RMS:  0.09
# Min/Max residuals:    -0.24    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.654106E-05  2.824064E-02  2.659752E-08  1.032495E-03  2.667738E-02  1.907170E-03
# Covariance matrix:
  6.6114E-13 -2.0306E-13 -1.1949E-13 -8.8268E-14  1.3089E-12 -1.9477E-12
 -2.0306E-13  6.0544E-13 -7.1954E-14  4.8868E-14  4.4229E-13  5.9518E-12
 -1.1949E-13 -7.1954E-14  4.0516E-13 -8.9323E-14 -6.4500E-13 -3.5791E-13
 -8.8268E-14  4.8868E-14 -8.9323E-14  8.6598E-14 -3.2138E-13  7.9834E-13
  1.3089E-12  4.4229E-13 -6.4500E-13 -3.2138E-13  6.5398E-12  3.1723E-13
 -1.9477E-12  5.9518E-12 -3.5791E-13  7.9834E-13  3.1723E-13  6.8382E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -29.416204  -53.058771   -0.556711   -0.414669   -0.735694  2456903.638858
# Heliocentric elements and errors
Epoch:              2456900.5000  =  2014/08/31
Mean Anomaly:           38.77595 +/-     0.099
Argument of Peri:      226.14281 +/-     0.132
Long of Asc Node:       32.66089 +/-     0.001
Inclination:            28.89402 +/-     0.000
Eccentricity:         0.11948074 +/-    0.0003
Semi-Major Axis:     41.85190143 +/-    0.0181
Time of Perihelion: 2446248.4988 +/-      26.2
Perihelion:          36.85140547 +/-    0.0214
Aphelion:            46.85239739 +/-    0.0248
Period (y)              270.7578 +/-      0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           20.57450171 +/-    0.0019
Ecliptic Y          -26.43593010 +/-    0.0025
Ecliptic Z          -18.41073713 +/-    0.0018
Ecliptic XDOT         0.00244541 +/-    0.0000
Ecliptic YDOT         0.00155958 +/-    0.0000
Ecliptic ZDOT        -0.00000371 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.22464862 +/-    0.0022
Geocenter to KBO     37.48494142 +/-    0.0036
# Hcoef:  7.58

The following table shows the complete astrometric record for 14RO86. 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 (14RO86) followed by the observatory code and reference code for the source of the astrometry.

2014 09  03.13808  21 18 56.864  -46 40 55.23  22.9i 14RO86    W84  C~52Tw      
2014 09  20.09353  21 17 17.178  -46 37 43.77  23.8g 14RO86    W84  C~52Tw      
2014 09  24.07015  21 16 57.561  -46 36 20.66  23.6r 14RO86    W84  C~52Tw      
2014 10  20.05430  21 15 35.750  -46 21 57.50  23.6i 14RO86    W84  C~52Tw      
2016 09  25.99327  21 33 38.301  -45 18 25.08  23.3i 14RO86    W84  C~52Tw      
2016 09  27.01134  21 33 33.473  -45 18 03.73  23.4r 14RO86    W84  C~52Tw      
2016 09  27.01272  21 33 33.462  -45 18 03.95  23.7g 14RO86    W84  C~52Tw      
2016 10  02.06436  21 33 11.125  -45 16 03.59  23.9r 14RO86    W84  C~52Tw      
2017 09  28.06012  21 41 35.203  -44 36 09.72  23.0i 14RO86    W84  C~52Tw      
2017 09  28.06285  21 41 35.207  -44 36 09.71  23.4i 14RO86    W84  C~52Tw      
2017 10  15.09997  21 40 30.053  -44 28 19.73  23.4r 14RO86    W84  C~52Tw      
2017 10  22.01831  21 40 13.521  -44 24 01.35  22.7i 14RO86    W84  C~52Tw      
2018 11  06.11386  21 47 43.515  -43 30 29.59  23.9r 14RO86    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     0.04       0.00     0.12
     2   0.0464   -896.72    -0.05     534.74    -0.01
     3   0.0573  -1058.06     0.06     682.15    -0.07
     4   0.1284  -1558.64    -0.05    1781.51     0.06
     5   2.0639  10372.55     0.04    1199.72     0.05
     6   2.0667  10333.93     0.01    1239.34    -0.02
     7   2.0667  10333.74    -0.13    1239.18    -0.24
     8   2.0806  10163.33     0.03    1442.28     0.01
     9   3.0689  16050.69    -0.09    1484.17     0.16
    10   3.0689  16050.73     0.06    1484.16     0.04
    11   3.1156  15607.40     0.04    2201.51    -0.09
    12   3.1345  15551.73     0.08    2510.68    -0.14
    13   4.1752  21358.08    -0.04    3390.80     0.12

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.

14RO86    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.953    42.010    41.897
ecceobj         0.120     0.121     0.119
incobj         28.919    28.919    28.919
qmin           36.182    36.053    36.170
qmax           48.183    48.401    48.094
amean          42.046    42.097    41.993
amin           41.709    41.749    41.667
amax           42.415    42.467    42.355
emean           0.120     0.121     0.119
emin            0.103     0.101     0.103
emax            0.137     0.141     0.136
imean          28.318    28.323    28.317
imin           27.923    27.863    27.946
imax           28.695    28.689    28.734
excite_mean     0.489     0.490     0.489
fracstop        1.000     1.000     1.000
cjmean          2.781     2.781     2.781

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       186.6     193.0     183.9
kozaiamp        179.9     180.0     180.0