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 25 02:08:45 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     50 observations of     50
# Arc:  10.15y
# First observation: 2005/06/10
#  Last observation: 2015/08/06
# Chi-squared of fit:    40.78 DOF:     94 RMS:  0.16
# Min/Max residuals:    -0.43    0.47
# Exact a, adot, b, bdot, g, gdot:
  1.629380E-05  2.428465E-02 -9.698290E-07 -1.062873E-03  2.448736E-02 -6.261324E-04
# Covariance matrix:
  1.6059E-13 -5.2460E-14 -1.5802E-15  1.7445E-15 -1.2323E-14 -1.5584E-13
 -5.2460E-14  4.9538E-14  1.9976E-15 -2.2371E-15 -2.3178E-15  1.9902E-13
 -1.5802E-15  1.9976E-15  1.2932E-13 -1.4654E-14 -3.1508E-16  8.4326E-15
  1.7445E-15 -2.2371E-15 -1.4654E-14  2.2235E-15  6.8912E-16 -9.5198E-15
 -1.2323E-14 -2.3178E-15 -3.1508E-16  6.8912E-16  1.8946E-13 -5.2696E-14
 -1.5584E-13  1.9902E-13  8.4326E-15 -9.5198E-15 -5.2696E-14  8.4496E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.677765 -117.369745   -0.298713    0.028439   -0.968332  2453531.900913
# Heliocentric elements and errors
Epoch:              2453532.5000  =  2005/06/11
Mean Anomaly:          341.76864 +/-     0.050
Argument of Peri:      167.06218 +/-     0.056
Long of Asc Node:       96.08155 +/-     0.001
Inclination:             3.00325 +/-     0.000
Eccentricity:         0.05012635 +/-    0.0001
Semi-Major Axis:     43.88733452 +/-    0.0034
Time of Perihelion: 2458910.5375 +/-      18.9
Perihelion:          41.68742281 +/-    0.0039
Aphelion:            46.08724624 +/-    0.0042
Period (y)              290.7482 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.94992922 +/-    0.0003
Ecliptic Y          -37.24922366 +/-    0.0006
Ecliptic Z            1.19564904 +/-    0.0000
Ecliptic XDOT         0.00244278 +/-    0.0000
Ecliptic YDOT        -0.00119623 +/-    0.0000
Ecliptic ZDOT        -0.00012079 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.80950777 +/-    0.0006
Geocenter to KBO     40.83744620 +/-    0.0007
# Hcoef:  5.67

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      
2011 05  30.41222  16 39 32.031  -20 50 30.60  21.1G 05LB54    F51  C~2r7G      
2011 05  30.42723  16 39 31.947  -20 50 30.49  21.9G 05LB54    F51  C~2r7G      
2011 05  30.44314  16 39 31.855  -20 50 30.71  21.6G 05LB54    F51  C~2r7G      
2011 05  30.45743  16 39 31.790  -20 50 30.57  22.0G 05LB54    F51  C~2r7G      
2012 05  10.49930  16 46 59.925  -21 08 16.98  22.0G 05LB54    F51  C~2r7G      
2012 08  17.26604  16 40 35.296  -20 58 44.39  22.1G 05LB54    F51  C~2r7G      
2013 05  16.51757  16 52 27.284  -21 21 36.29  19.8G 05LB54    F51  C~2r7G      
2013 06  07.41808  16 50 37.009  -21 18 43.36  21.0G 05LB54    F51  C~2r7G      
2013 06  07.43199  16 50 36.936  -21 18 43.67  21.0G 05LB54    F51  C~2r7G      
2013 06  07.46265  16 50 36.737  -21 18 43.59  21.4G 05LB54    F51  C~2r7G      
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      
2014 06  08.44841  16 56 29.178  -21 32 15.53  20.6G 05LB54    F51  C~2r7G      
2014 07  25.31636  16 53 02.291  -21 27 53.60  22.0G 05LB54    F51  C~2r7G      
2014 07  25.31768  16 53 02.281  -21 27 53.38  22.2G 05LB54    F51  C~2r7G      
2014 07  25.32705  16 53 02.252  -21 27 53.26  22.2G 05LB54    F51  C~2r7G      
2014 07  25.33768  16 53 02.215  -21 27 53.46  21.8G 05LB54    F51  C~2r7G      
2014 07  25.33900  16 53 02.194  -21 27 53.33  22.2G 05LB54    F51  C~2r7G      
2014 07  25.34833  16 53 02.190  -21 27 53.44  22.0G 05LB54    F51  C~2r7G      
2014 07  25.34965  16 53 02.165  -21 27 53.14  21.9G 05LB54    F51  C~2r7G      
2014 07  31.26977  16 52 45.223  -21 27 37.23  21.8G 05LB54    F51  C~2r7G      
2014 08  22.26997  16 52 09.434  -21 27 25.34  22.3G 05LB54    F51  C~2r7G      
2014 08  22.28162  16 52 09.439  -21 27 25.38  22.0G 05LB54    F51  C~2r7G      
2014 08  22.29332  16 52 09.423  -21 27 25.30  22.3G 05LB54    F51  C~2r7G      
2015 05  21.46187  17 03 59.384  -21 47 03.62  22.4G 05LB54    F51  C~2r7G      
2015 05  21.47399  17 03 59.333  -21 47 03.74  22.7G 05LB54    F51  C~2r7G      
2015 07  09.35453  16 59 58.085  -21 42 08.91  22.4G 05LB54    F51  C~2r7G      
2015 07  09.36634  16 59 58.032  -21 42 08.87  21.7G 05LB54    F51  C~2r7G      
2015 07  09.37824  16 59 57.989  -21 42 08.86  22.2G 05LB54    F51  C~2r7G      
2015 07  09.39002  16 59 57.934  -21 42 08.70  21.8G 05LB54    F51  C~2r7G      
2015 07  12.35741  16 59 45.458  -21 41 55.22  21.4G 05LB54    F51  C~2r7G      
2015 07  12.36917  16 59 45.401  -21 41 55.13  21.7G 05LB54    F51  C~2r7G      
2015 07  12.38098  16 59 45.338  -21 41 55.09  20.8G 05LB54    F51  C~2r7G      
2015 07  12.39278  16 59 45.319  -21 41 55.11  20.9G 05LB54    F51  C~2r7G      
2015 08  06.29271  16 58 24.616  -21 40 40.25  21.4G 05LB54    F51  C~2r7G      
2015 08  06.31611  16 58 24.559  -21 40 40.36  21.3G 05LB54    F51  C~2r7G      
2015 08  06.32782  16 58 24.533  -21 40 40.35  21.3G 05LB54    F51  C~2r7G      

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    -0.12       0.00     0.08
     2   0.0001      0.00    -0.01       0.00     0.17
     3   0.0001      0.00    -0.03       0.00     0.24
     4   0.0028      0.00     0.01       0.00    -0.08
     5   0.0055      0.00    -0.03       0.00    -0.20
     6   0.1311      0.00     0.06       0.00     0.06
     7   0.1338      0.00     0.15       0.00     0.04
     8   0.9718      0.00    -0.16       0.00    -0.04
     9   0.9719      0.00    -0.14       0.00    -0.07
    10   0.9720      0.00    -0.14       0.00    -0.11
    11   1.9274      0.00     0.26       0.00    -0.23
    12   1.9302      0.00     0.12       0.00    -0.24
    13   5.9685      0.00     0.11       0.00     0.32
    14   5.9686      0.00     0.02       0.00     0.29
    15   5.9686      0.00    -0.13       0.00    -0.08
    16   5.9687      0.00     0.01       0.00    -0.07
    17   6.9161      0.00    -0.19       0.00     0.08
    18   7.1865      0.00     0.10       0.00    -0.02
    19   7.9319      0.00    -0.31       0.00     0.14
    20   7.9918      0.00     0.24       0.00     0.47
    21   7.9919      0.00     0.23       0.00     0.05
    22   7.9920      0.00    -0.35       0.00    -0.11
    23   7.9962      0.00     0.09       0.00     0.10
    24   7.9966      0.00     0.04       0.00     0.12
    25   7.9971      0.00    -0.01       0.00     0.02
    26   8.9940      0.00     0.21       0.00    -0.43
    27   9.1223      0.00     0.14       0.00    -0.20
    28   9.1223      0.00     0.05       0.00     0.02
    29   9.1223      0.00     0.07       0.00     0.11
    30   9.1223      0.00     0.02       0.00    -0.13
    31   9.1224      0.00    -0.23       0.00     0.00
    32   9.1224      0.00     0.16       0.00    -0.14
    33   9.1224      0.00    -0.16       0.00     0.16
    34   9.1386      0.00    -0.10       0.00     0.06
    35   9.1988      0.00     0.03       0.00    -0.12
    36   9.1989      0.00     0.22       0.00    -0.15
    37   9.1989      0.00     0.09       0.00    -0.06
    38   9.9440      0.00     0.13       0.00     0.29
    39   9.9441      0.00     0.27       0.00     0.10
    40  10.0779      0.00     0.07       0.00    -0.02
    41  10.0779      0.00     0.05       0.00    -0.04
    42  10.0780      0.00     0.18       0.00    -0.08
    43  10.0780      0.00     0.13       0.00     0.02
    44  10.0861      0.00    -0.10       0.00    -0.09
    45  10.0862      0.00    -0.22       0.00    -0.06
    46  10.0862      0.00    -0.42       0.00    -0.07
    47  10.0862      0.00     0.04       0.00    -0.14
    48  10.1544      0.00    -0.11       0.00     0.12
    49  10.1545      0.00    -0.14       0.00    -0.03
    50  10.1545      0.00    -0.12       0.00    -0.04

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        43.431    43.431    43.431
ecceobj         0.043     0.043     0.043
incobj          3.007     3.007     3.007
qmin           40.787    40.787    40.786
qmax           46.973    46.971    46.975
amean          43.736    43.736    43.736
amin           43.360    43.358    43.362
amax           44.111    44.111    44.111
emean           0.042     0.041     0.042
emin            0.016     0.015     0.015
emax            0.065     0.065     0.065
imean           1.383     1.379     1.382
imin            0.524     0.524     0.524
imax            2.013     2.017     2.018
excite_mean     0.049     0.048     0.049
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     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       180.6     180.0     180.5
kozaiamp        180.0     180.0     179.9