Orbit Fit and Astrometric record for 10EU65

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: 10EU65    
# Created Mon Oct 23 01:37:49 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   26 observations of   26
# Arc:  85.01d
# First observation: 2010/03/13
#  Last observation: 2010/06/06
# Chi-squared of fit:   155.24 DOF:   46 RMS:  0.43
# Min/Max residuals:    -1.14    1.19
# Exact a, adot, b, bdot, g, gdot:
  2.810055E-05  8.517410E-02 -5.368704E-06 -2.252466E-02  5.813848E-02  1.131992E-03
# Covariance matrix:
  2.2089E-13 -3.9954E-11  2.4812E-14 -1.6099E-12 -4.4783E-12  3.4881E-10
 -3.9954E-11  2.2920E-08 -1.0834E-11  7.1404E-10  3.0168E-09 -1.5931E-07
  2.4812E-14 -1.0834E-11  8.7885E-14 -9.2018E-13 -1.3648E-12  8.1856E-11
 -1.6099E-12  7.1404E-10 -9.2018E-13  3.6183E-11  9.0206E-11 -5.3683E-09
 -4.4783E-12  3.0168E-09 -1.3648E-12  9.0206E-11  4.0443E-10 -2.0230E-08
  3.4881E-10 -1.5931E-07  8.1856E-11 -5.3683E-09 -2.0230E-08  1.1868E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.222727 -173.829785    0.242181   -0.003741   -0.968293  2455268.584056
# Heliocentric elements and errors
Epoch:              2455268.5000  =  2010/03/13
Mean Anomaly:          359.40674 +/-     1.762
Argument of Peri:      181.48621 +/-     2.851
Long of Asc Node:        4.61955 +/-     0.002
Inclination:            14.83678 +/-     0.026
Eccentricity:         0.05418723 +/-    0.0119
Semi-Major Axis:     19.20726046 +/-    0.0889
Time of Perihelion: 2455319.1690 +/-     260.8
Perihelion:          18.16647230 +/-    0.2440
Aphelion:            20.24804861 +/-    0.2475
Period (y)               84.1795 +/-      0.58
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.08527568 +/-    0.0059
Ecliptic Y           -1.71501918 +/-    0.0006
Ecliptic Z           -0.06698708 +/-    0.0000
Ecliptic XDOT         0.00038451 +/-    0.0001
Ecliptic YDOT        -0.00398722 +/-    0.0000
Ecliptic ZDOT        -0.00106098 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   18.16653471 +/-    0.0059
Geocenter to KBO     17.20032702 +/-    0.0059
# Hcoef:  9.13

The following table shows the complete astrometric record for 10EU65. 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 (10EU65) followed by the observatory code and reference code for the source of the astrometry.

2010 03  13.08329  12 22 18.303  -02 39 17.67  21.2R 10EU65    809  C~0F7n      
2010 03  13.16817  12 22 17.516  -02 39 13.50  21.3R 10EU65    809  C~0F7n      
2010 03  13.25226  12 22 16.717  -02 39 09.79  21.8R 10EU65    809  C~0F7n      
2010 03  14.16396  12 22 07.841  -02 38 24.75  21.2R 10EU65    809  C~0F7n      
2010 03  14.24839  12 22 06.987  -02 38 22.02  21.3R 10EU65    809  C~0F7n      
2010 03  16.22843  12 21 47.541  -02 36 42.75  21.4R 10EU65    807  C~0F7n      
2010 03  16.25617  12 21 47.271  -02 36 41.57  21.5R 10EU65    807  C~0F7n      
2010 03  18.07817  12 21 29.279  -02 35 11.00  21.5R 10EU65    809  C~0Fo2      
2010 03  18.16131  12 21 28.440  -02 35 06.79  21.0R 10EU65    809  C~0Fo2      
2010 03  18.24527  12 21 27.616  -02 35 02.72  21.4R 10EU65    809  C~0Fo2      
2010 03  20.07412  12 21 09.397  -02 33 30.49  21.2R 10EU65    809  C~0Fo2      
2010 03  20.15781  12 21 08.562  -02 33 25.84  21.2R 10EU65    809  C~0Fo2      
2010 03  20.24245  12 21 07.709  -02 33 22.06  21.3R 10EU65    809  C~0Fo2      
2010 03  21.07089  12 20 59.410  -02 32 40.05  21.0R 10EU65    809  C~0Fo2      
2010 03  21.15458  12 20 58.594  -02 32 35.91  21.4R 10EU65    809  C~0Fo2      
2010 03  21.23733  12 20 57.733  -02 32 31.38  21.8R 10EU65    809  C~0Fo2      
2010 03  22.06794  12 20 49.490  -02 31 49.36  21.0R 10EU65    809  C~0Fo2      
2010 03  22.15139  12 20 48.574  -02 31 45.33  21.0R 10EU65    809  C~0Fo2      
2010 03  22.23561  12 20 47.747  -02 31 40.40  21.5R 10EU65    809  C~0Fo2      
2010 03  27.20981  12 19 57.673  -02 27 27.27  21.2R 10EU65    807  C~0Fo2      
2010 03  27.26098  12 19 57.164  -02 27 24.19  21.2R 10EU65    807  C~0Fo2      
2010 04  21.09270  12 15 58.608  -02 07 16.66  21.8R 10EU65    807  C~0Gty      
2010 04  21.15461  12 15 58.075  -02 07 13.98  21.5R 10EU65    807  C~0Gty      
2010 06  03.00167  12 11 56.614  -01 50 01.64  21.2R 10EU65    807  C~0IRj      
2010 06  06.02025  12 11 51.702  -01 50 05.61  21.5R 10EU65    807  C~0IRj      
2010 06  06.09407  12 11 51.622  -01 50 06.06  21.2R 10EU65    807  C~0IRj      

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    -0.06       0.00    -0.13
  2   0.0002      0.00    -0.16       0.00     0.27
  3   0.0005      0.00     0.33       0.00    -0.10
  4   0.0030      0.00     0.08       0.00     0.43
  5   0.0032      0.00    -0.14       0.00    -0.97
  6   0.0086      0.00    -0.40       0.00     0.58
  7   0.0087      0.00    -0.27       0.00     0.38
  8   0.0137      0.00    -0.05       0.00    -0.01
  9   0.0139      0.00    -0.06       0.00     0.03
 10   0.0141      0.00     0.33       0.00    -0.11
 11   0.0191      0.00     0.12       0.00    -0.09
 12   0.0194      0.00     0.33       0.00     0.33
 13   0.0196      0.00     0.47       0.00    -0.17
 14   0.0219      0.00    -0.03       0.00    -0.18
 15   0.0221      0.00     0.49       0.00    -0.29
 16   0.0223      0.00     0.25       0.00     0.04
 17   0.0246      0.00     1.19       0.00    -0.20
 18   0.0248      0.00     0.20       0.00    -0.41
 19   0.0251      0.00     0.72       0.00     0.23
 20   0.0387      0.00     0.76       0.00    -1.14
 21   0.0388      0.00     1.00       0.00    -0.69
 22   0.1068      0.00    -0.52       0.00     0.25
 23   0.1070      0.00    -0.25       0.00     0.26
 24   0.2243      0.00    -0.00       0.00     0.45
 25   0.2325      0.00    -0.14       0.00    -0.11
 26   0.2327      0.00     0.30       0.00    -0.34

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.

10EU65    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        19.248    19.248    19.248
ecceobj         0.055     0.055     0.055
incobj         14.830    14.830    14.830
qmin           10.735    13.945    14.870
qmax           28.316    24.090    24.080
amean          19.190    19.193    19.307
amin           18.071    18.592    18.819
amax           19.617    19.651    20.809
emean           0.136     0.082     0.085
emin            0.002     0.006     0.002
emax            0.443     0.260     0.223
imean          15.885    16.026    15.569
imin           12.524    14.755    11.854
imax           17.411    18.106    18.539
excite_mean     0.320     0.294     0.288
fracstop        0.201     0.109     0.129
cjmean          3.080     3.095     3.093

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       180.3     181.0     176.0
kozaiamp        179.9     179.5     179.4