Orbit Fit and Astrometric record for 05LB54

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: 05LB54    
# Created Wed Dec 13 02:37:25 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:   8.00y
# First observation: 2005/06/10
#  Last observation: 2013/06/09
Preliminary a, adot, b, bdot, g, gdot:
  -0.000175   0.024716   0.000007  -0.001080   0.023768   0.000000
# Chi-squared of fit:     6.53 DOF:   24 RMS:  0.12
# Min/Max residuals:    -0.20    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.591705E-05  2.428545E-02 -1.094166E-06 -1.062861E-03  2.448641E-02 -6.223303E-04
# Covariance matrix:
  2.9341E-13 -3.7362E-13 -5.4109E-15  1.4863E-14  4.3710E-13 -1.6946E-12
 -3.7362E-13  8.3804E-13  1.2802E-14 -3.5007E-14 -1.0046E-12  3.9903E-12
 -5.4109E-15  1.2802E-14  1.4410E-13 -2.2470E-14 -1.2168E-14  6.1962E-14
  1.4863E-14 -3.5007E-14 -2.2470E-14  1.1776E-14  4.1187E-14 -1.6885E-13
  4.3710E-13 -1.0046E-12 -1.2168E-14  4.1187E-14  2.4378E-12 -4.7526E-12
 -1.6946E-12  3.9903E-12  6.1962E-14 -1.6885E-13 -4.7526E-12  1.9243E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.677765 -117.369745   -0.298714    0.028439   -0.968331  2453531.900913
# Heliocentric elements and errors
Epoch:              2453530.5000  =  2005/06/09
Mean Anomaly:          341.98930 +/-     0.258
Argument of Peri:      166.81562 +/-     0.287
Long of Asc Node:       96.08261 +/-     0.002
Inclination:             3.00315 +/-     0.000
Eccentricity:         0.05024767 +/-    0.0002
Semi-Major Axis:     43.89740498 +/-    0.0143
Time of Perihelion: 2458845.2738 +/-      76.2
Perihelion:          41.69166272 +/-    0.0161
Aphelion:            46.10314724 +/-    0.0173
Period (y)              290.8483 +/-      0.14
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.95067454 +/-    0.0012
Ecliptic Y          -37.25062999 +/-    0.0023
Ecliptic Z            1.19569058 +/-    0.0001
Ecliptic XDOT         0.00244276 +/-    0.0000
Ecliptic YDOT        -0.00119669 +/-    0.0000
Ecliptic ZDOT        -0.00012078 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.81108915 +/-    0.0021
Geocenter to KBO     40.83898660 +/-    0.0026
# Hcoef:  5.94

The following table shows the complete astrometric record for 05LB54. 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 (05LB54) followed by the observatory code and reference code for the source of the astrometry.

2005 06  10.40017  16 03 39.22   -19 02 25.6   22.7g 05LB54    568  C~0VE2      
2005 06  10.42651  16 03 39.10   -19 02 25.2   22.7g 05LB54    568  C~0VE2      
2005 06  10.45314  16 03 38.97   -19 02 24.8   22.5g 05LB54    568  C~0VE2      
2005 06  11.41659  16 03 34.42   -19 02 13.7   22.7g 05LB54    568  C~0VE2      
2005 06  12.40614  16 03 29.77   -19 02 02.2   22.5g 05LB54    568  C~0VE2      
2005 07  28.30260  16 00 53.59   -18 56 21.7   21.3i 05LB54    568  C~0VE2      
2005 07  29.25804  16 00 52.02   -18 56 19.9   21.6i 05LB54    568  C~0VE2      
2006 05  31.35310  16 10 14.93   -19 23 55.6   21.9r 05LB54    568  C~0VE2      
2006 05  31.38867  16 10 14.75   -19 23 55.2   21.6r 05LB54    568  C~0VE2      
2006 05  31.42415  16 10 14.57   -19 23 54.8   21.6r 05LB54    568  C~0VE2      
2007 05  15.39356  16 17 23.47   -19 45 52.2   20.8r 05LB54    695  C~0VE2      
2007 05  16.41878  16 17 18.42   -19 45 39.9   20.8r 05LB54    695  C~0VE2      
2013 06  09.02532  16 50 28.77   -21 18 31.0   21.7R 05LB54    304  C~0snn      
2013 06  09.14222  16 50 28.16   -21 18 30.1         05LB54    304  C~0snn      
2013 06  09.33221  16 50 27.17   -21 18 28.7         05LB54    304  C~0snn      

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    -0.05       0.00     0.08
  2   0.0001     -1.75     0.04       0.06     0.19
  3   0.0001     -3.63     0.00       0.10     0.26
  4   0.0028    -69.08     0.10      -1.50    -0.05
  5   0.0055   -135.99     0.08      -2.98    -0.17
  6   0.1311  -2375.16    -0.02    -102.11     0.09
  7   0.1338  -2397.36     0.06    -104.74     0.09
  8   0.9718   5749.03    -0.17    -208.54    -0.04
  9   0.9719   5746.45    -0.16    -208.62    -0.07
 10   0.9720   5743.88    -0.15    -208.70    -0.11
 11   1.9274  11955.07     0.20    -420.00    -0.17
 12   1.9302  11882.49     0.06    -420.29    -0.20
 13   7.9962  40865.11     0.04   -1779.67     0.06
 14   7.9966  40856.21    -0.01   -1779.83     0.08
 15   7.9971  40841.76    -0.04   -1780.14    -0.03

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.

05LB54    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.441    43.483    43.400
ecceobj         0.043     0.043     0.042
incobj          3.007     3.007     3.007
qmin           41.053    41.188    41.095
qmax           46.699    46.594    46.511
amean          43.752    43.789    43.693
amin           43.406    43.449    43.344
amax           44.101    44.145    44.043
emean           0.042     0.039     0.039
emin            0.019     0.022     0.016
emax            0.059     0.056     0.056
imean           1.385     1.309     1.384
imin            0.545     0.545     0.532
imax            2.070     1.911     2.062
excite_mean     0.049     0.046     0.047
fracstop        1.000     1.000     1.000
cjmean          3.096     3.096     3.095

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       171.2     176.8     171.7
kozaiamp        180.0     180.0     180.0