Orbit Fit and Astrometric record for 11HJ103

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: 11HJ103   
# Created Sun Oct 21 01:08:58 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   36 observations of   36
# Arc:   6.16y
# First observation: 2011/04/28
#  Last observation: 2017/06/23
# Chi-squared of fit:    22.69 DOF:   66 RMS:  0.14
# Min/Max residuals:    -0.43    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.562468E-05  2.597554E-02 -1.452732E-06 -2.123888E-03  2.493334E-02 -1.761236E-03
# Covariance matrix:
  2.0942E-13  1.4457E-14 -4.5903E-15 -2.1052E-15  2.8882E-13  1.9069E-13
  1.4457E-14  1.0591E-13  3.4649E-16 -8.3766E-15  1.1226E-13  7.5396E-13
 -4.5903E-15  3.4649E-16  6.5335E-14 -1.4339E-14 -8.4431E-15  3.7270E-15
 -2.1052E-15 -8.3766E-15 -1.4339E-14  8.6876E-15 -8.9341E-15 -6.4566E-14
  2.8882E-13  1.1226E-13 -8.4431E-15 -8.9341E-15  6.1073E-13  8.0641E-13
  1.9069E-13  7.5396E-13  3.7270E-15 -6.4566E-14  8.0641E-13  5.8112E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.702638  -82.325212    0.877510    0.023548   -0.499351  2455679.768846
# Heliocentric elements and errors
Epoch:              2455680.5000  =  2011/04/29
Mean Anomaly:          330.16894 +/-     0.023
Argument of Peri:      190.50672 +/-     0.033
Long of Asc Node:      126.37657 +/-     0.001
Inclination:             5.33628 +/-     0.000
Eccentricity:         0.15714429 +/-    0.0001
Semi-Major Axis:     46.61721982 +/-    0.0068
Time of Perihelion: 2465314.0026 +/-      24.5
Perihelion:          39.29159006 +/-    0.0077
Aphelion:            53.94284958 +/-    0.0094
Period (y)              318.2935 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            4.55207973 +/-    0.0002
Ecliptic Y          -40.31599425 +/-    0.0012
Ecliptic Z            1.89109254 +/-    0.0001
Ecliptic XDOT         0.00280052 +/-    0.0000
Ecliptic YDOT         0.00056742 +/-    0.0000
Ecliptic ZDOT        -0.00024205 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.61627680 +/-    0.0012
Geocenter to KBO     40.10701065 +/-    0.0013
# Hcoef:  8.13

The following table shows the complete astrometric record for 11HJ103. 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 (11HJ103) followed by the observatory code and reference code for the source of the astrometry.

2011 04  28.26808  18 32 45.35   -20 31 07.5         11HJ103   268  C~113n      
2011 04  28.36805  18 32 45.14   -20 31 07.4         11HJ103   268  C~113n      
2011 04  30.39635  18 32 40.89   -20 31 06.0         11HJ103   268  C~113n      
2011 05  06.36820  18 32 26.23   -20 31 04.2         11HJ103   268  C~113n      
2011 05  29.48014  18 31 02.93   -20 31 32.8         11HJ103   266  C~113n      
2011 05  29.56900  18 31 02.55   -20 31 33.1         11HJ103   266  C~113n      
2011 05  30.48977  18 30 58.50   -20 31 35.7         11HJ103   266  C~113n      
2011 05  30.52326  18 30 58.35   -20 31 35.7         11HJ103   266  C~113n      
2011 05  31.48809  18 30 54.08   -20 31 38.0         11HJ103   266  C~113n      
2011 05  31.52730  18 30 53.90   -20 31 38.2         11HJ103   266  C~113n      
2011 05  31.56672  18 30 53.74   -20 31 38.1         11HJ103   266  C~113n      
2011 06  01.53319  18 30 49.38   -20 31 40.8         11HJ103   266  C~113n      
2011 06  01.59657  18 30 49.09   -20 31 41.1         11HJ103   266  C~113n      
2011 06  04.29530  18 30 36.70   -20 31 48.7         11HJ103   268  C~113n      
2011 06  04.39266  18 30 36.23   -20 31 48.8         11HJ103   268  C~113n      
2011 07  02.03941  18 28 16.77   -20 33 40.9         11HJ103   269  C~113n      
2011 07  02.14714  18 28 16.20   -20 33 41.3         11HJ103   269  C~113n      
2011 07  02.25740  18 28 15.62   -20 33 41.8         11HJ103   269  C~113n      
2011 07  02.28855  18 28 15.48   -20 33 42.2         11HJ103   266  C~113n      
2011 07  02.35039  18 28 15.15   -20 33 42.6   25.0R 11HJ103   266  C~113n      
2011 07  02.41278  18 28 14.82   -20 33 42.7         11HJ103   266  C~113n      
2011 07  02.53920  18 28 14.16   -20 33 43.5         11HJ103   266  C~113n      
2014 06  25.35303  18 48 18.321  -20 37 32.17        11HJ103   266  C~2Gt6      
2014 06  25.39002  18 48 18.124  -20 37 32.36        11HJ103   266  C~2Gt6      
2014 06  25.43230  18 48 17.902  -20 37 32.67        11HJ103   266  C~2Gt6      
2014 06  25.51192  18 48 17.481  -20 37 33.21        11HJ103   266  C~2Gt6      
2014 06  25.54572  18 48 17.304  -20 37 33.42        11HJ103   266  C~2Gt6      
2014 06  27.35764  18 48 07.923  -20 37 45.91        11HJ103   266  C~2Gt6      
2014 06  27.37087  18 48 07.862  -20 37 46.05        11HJ103   266  C~2Gt6      
2016 06  05.46715  19 02 58.844  -20 33 28.63        11HJ103   266  C~2Gt6      
2016 06  05.51228  19 02 58.645  -20 33 29.00        11HJ103   266  C~2Gt6      
2016 06  05.53621  19 02 58.537  -20 33 28.99        11HJ103   266  C~2Gt6      
2016 06  05.53960  19 02 58.515  -20 33 29.05        11HJ103   266  C~2Gt6      
2017 05  20.49661  19 10 34.945  -20 29 26.85  23.2r 11HJ103   568  C~2cbA      
2017 06  22.46305  19 08 15.494  -20 33 13.57        11HJ103   568  C~2cbA      
2017 06  23.46091  19 08 10.473  -20 33 22.35  23.6r 11HJ103   568  C~2cbA      

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     0.19       0.00     0.03
  2   0.0003      0.00     0.14       0.00     0.06
  3   0.0058      0.00     0.10       0.00    -0.01
  4   0.0222      0.00     0.30       0.00     0.04
  5   0.0855      0.00    -0.43       0.00     0.19
  6   0.0857      0.00    -0.19       0.00     0.10
  7   0.0882      0.00    -0.34       0.00    -0.23
  8   0.0883      0.00    -0.33       0.00    -0.15
  9   0.0910      0.00    -0.07       0.00     0.01
 10   0.0911      0.00    -0.08       0.00    -0.09
 11   0.0912      0.00     0.22       0.00     0.11
 12   0.0938      0.00     0.02       0.00    -0.02
 13   0.0940      0.00     0.05       0.00    -0.16
 14   0.1014      0.00     0.03       0.00    -0.30
 15   0.1016      0.00    -0.11       0.00    -0.14
 16   0.1773      0.00     0.03       0.00    -0.12
 17   0.1776      0.00    -0.00       0.00     0.04
 18   0.1779      0.00     0.04       0.00     0.09
 19   0.1780      0.00     0.12       0.00     0.00
 20   0.1782      0.00     0.06       0.00    -0.07
 21   0.1784      0.00     0.06       0.00     0.15
 22   0.1787      0.00     0.19       0.00    -0.03
 23   3.1597      0.00     0.03       0.00     0.09
 24   3.1598      0.00    -0.01       0.00     0.16
 25   3.1599      0.00     0.00       0.00     0.15
 26   3.1601      0.00    -0.02       0.00     0.15
 27   3.1602      0.00    -0.01       0.00     0.17
 28   3.1652      0.00     0.00       0.00     0.21
 29   3.1652      0.00     0.14       0.00     0.16
 30   5.1066      0.00    -0.02       0.00    -0.10
 31   5.1068      0.00     0.02       0.00    -0.18
 32   5.1068      0.00     0.01       0.00    -0.01
 33   5.1068      0.00    -0.09       0.00    -0.05
 34   6.0622      0.00     0.18       0.00    -0.09
 35   6.1525      0.00    -0.02       0.00    -0.12
 36   6.1552      0.00    -0.12       0.00    -0.05

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.

11HJ103    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.394    46.394    46.394
ecceobj         0.155     0.155     0.155
incobj          5.339     5.339     5.339
qmin           38.712    38.686    38.687
qmax           54.898    54.891    54.905
amean          46.606    46.597    46.594
amin           46.195    46.201    46.192
amax           47.072    47.071    47.072
emean           0.154     0.154     0.154
emin            0.139     0.140     0.139
emax            0.167     0.167     0.167
imean           4.008     4.010     4.007
imin            3.504     3.504     3.504
imax            4.528     4.517     4.516
excite_mean     0.169     0.169     0.169
fracstop        1.000     1.000     1.000
cjmean          3.098     3.098     3.098

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       184.1     184.4     183.8
kozaiamp        179.9     179.9     180.0