Orbit Fit and Astrometric record for 13JV65

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: 13JV65    
# Created Thu Oct 18 01:09:24 2018
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   17
# Arc:   4.93y
# First observation: 2013/05/05
#  Last observation: 2018/04/10
Preliminary a, adot, b, bdot, g, gdot:
   0.000065   0.024259   0.000003  -0.000880   0.024935   0.000000
# Chi-squared of fit:     7.87 DOF:   26 RMS:  0.12
# Min/Max residuals:    -0.28    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.551035E-05  2.419612E-02  6.108766E-07 -8.755770E-04  2.458547E-02 -6.329475E-04
# Covariance matrix:
  3.3238E-13  1.3051E-14  5.1045E-16 -4.3379E-15  6.4285E-13  9.7676E-13
  1.3051E-14  4.5155E-13  4.9530E-15 -1.5743E-14  8.3299E-13  4.1521E-12
  5.1045E-16  4.9530E-15  1.6025E-13 -6.1514E-14  9.1175E-15  5.1338E-14
 -4.3379E-15 -1.5743E-14 -6.1514E-14  5.5651E-14 -3.7330E-14 -1.6658E-13
  6.4285E-13  8.3299E-13  9.1175E-15 -3.7330E-14  3.2462E-12  9.3309E-12
  9.7676E-13  4.1521E-12  5.1338E-14 -1.6658E-13  9.3309E-12  4.3723E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.514911 -131.773756    0.057887   -0.044265   -1.008207  2456417.894518
# Heliocentric elements and errors
Epoch:              2456410.5000  =  2013/04/28
Mean Anomaly:          310.27785 +/-     0.211
Argument of Peri:      282.55997 +/-     0.232
Long of Asc Node:      358.33031 +/-     0.008
Inclination:             3.21088 +/-     0.000
Eccentricity:         0.03346472 +/-    0.0003
Semi-Major Axis:     42.57339104 +/-    0.0116
Time of Perihelion: 2470424.2115 +/-      59.2
Perihelion:          41.14868449 +/-    0.0174
Aphelion:            43.99809759 +/-    0.0179
Period (y)              277.7893 +/-      0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.78534064 +/-    0.0020
Ecliptic Y          -31.01695200 +/-    0.0022
Ecliptic Z           -1.78470264 +/-    0.0001
Ecliptic XDOT         0.00205294 +/-    0.0000
Ecliptic YDOT        -0.00173926 +/-    0.0000
Ecliptic ZDOT        -0.00009417 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.68047060 +/-    0.0021
Geocenter to KBO     40.67443490 +/-    0.0030
# Hcoef:  6.27

The following table shows the complete astrometric record for 13JV65. 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 (13JV65) followed by the observatory code and reference code for the source of the astrometry.

2013 05  05.39374  15 00 05.972  -19 40 17.54  22.3w 13JV65    F51  C~1vWz      
2013 05  05.40855  15 00 05.888  -19 40 16.72  22.4w 13JV65    F51  C~1vWz      
2013 05  05.42333  15 00 05.834  -19 40 16.57  22.4w 13JV65    F51  C~1vWz      
2013 06  01.35873  14 57 56.671  -19 31 15.87  22.6w 13JV65    F51  C~1vWz      
2013 06  01.37354  14 57 56.601  -19 31 15.58  22.6w 13JV65    F51  C~1vWz      
2013 06  01.38835  14 57 56.532  -19 31 15.22  23.0w 13JV65    F51  C~1vWz      
2013 06  01.40316  14 57 56.476  -19 31 15.03  22.4w 13JV65    F51  C~1vWz      
2014 05  20.37838  15 04 29.225  -20 01 25.48  22.7w 13JV65    F51  C~1vWz      
2014 05  20.38970  15 04 29.171  -20 01 25.48  22.6w 13JV65    F51  C~1vWz      
2014 05  20.40100  15 04 29.123  -20 01 25.06  22.5w 13JV65    F51  C~1vWz      
2014 05  20.41229  15 04 29.064  -20 01 24.89  22.6w 13JV65    F51  C~1vWz      
2015 06  11.31554  15 08 27.781  -20 20 03.63  22.6w 13JV65    F51  C~1vWz      
2015 06  11.32672  15 08 27.739  -20 20 03.25  22.5w 13JV65    F51  C~1vWz      
2015 06  11.33793  15 08 27.670  -20 20 03.11  22.3w 13JV65    F51  C~1vWz      
2015 06  11.34914  15 08 27.653  -20 20 03.01  22.3w 13JV65    F51  C~1vWz      
2018 04  10.33418  15 30 28.746  -21 49 30.08  21.9R 13JV65    G37  C~2bGy      
2018 04  10.41002  15 30 28.468  -21 49 30.47        13JV65    G37  C~2bGy      

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     0.01       0.00    -0.24
  2   0.0000     -1.37    -0.27       0.45     0.23
  3   0.0001     -2.14     0.05       0.38     0.18
  4   0.0738  -1905.83     0.03       2.57    -0.08
  5   0.0739  -1906.86    -0.01       2.56    -0.09
  6   0.0739  -1907.90    -0.06       2.63    -0.03
  7   0.0739  -1908.71     0.12       2.59    -0.08
  8   1.0403   3920.83    -0.02    -184.16     0.04
  9   1.0404   3920.09     0.07    -184.37    -0.17
 10   1.0404   3919.33     0.13    -184.15     0.05
 11   1.0404   3918.48     0.11    -184.22    -0.02
 12   2.0997   7459.86    -0.04    -345.59     0.00
 13   2.0997   7459.18    -0.01    -345.38     0.20
 14   2.0998   7458.21    -0.28    -345.51     0.06
 15   2.0998   7457.95     0.16    -345.48     0.08
 16   4.9307  26849.98 (  -0.68)   -865.27 (   0.97)
 17   4.9309  26846.25     0.01    -866.57    -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.

13JV65    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.427    42.460    42.394
ecceobj         0.034     0.035     0.033
incobj          3.219     3.219     3.219
qmin           40.553    40.557    40.554
qmax           45.065    45.167    45.049
amean          42.740    42.774    42.706
amin           42.408    42.454    42.382
amax           43.081    43.114    43.043
emean           0.029     0.030     0.029
emin            0.008     0.009     0.008
emax            0.047     0.048     0.047
imean           3.580     3.575     3.584
imin            2.458     2.480     2.434
imax            4.439     4.429     4.445
excite_mean     0.069     0.069     0.069
fracstop        1.000     1.000     1.000
cjmean          3.081     3.081     3.080

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       188.0     189.1     186.4
kozaiamp        180.0     180.0     180.0