Orbit Fit and Astrometric record for 01OZ108

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: 01OZ108   
# Created Sun Oct 22 01:37:13 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:   7.03y
# First observation: 1999/07/18
#  Last observation: 2006/07/29
Preliminary a, adot, b, bdot, g, gdot:
  -0.000379   0.021993   0.000017  -0.000801   0.023318   0.000000
# Chi-squared of fit:    24.13 DOF:   30 RMS:  0.20
# Min/Max residuals:    -0.57    0.50
# Exact a, adot, b, bdot, g, gdot:
  1.499128E-05  2.196948E-02 -2.963070E-06 -7.997951E-04  2.333934E-02  1.232640E-03
# Covariance matrix:
  7.1108E-13 -4.0309E-13 -1.7116E-14  1.3042E-14 -5.0502E-14 -2.0112E-12
 -4.0309E-13  2.8764E-13  1.3276E-14 -1.0092E-14  7.8461E-14  1.5553E-12
 -1.7116E-14  1.3276E-14  2.4888E-13 -5.2776E-14  4.1863E-15  7.6162E-14
  1.3042E-14 -1.0092E-14 -5.2776E-14  1.6879E-14 -3.0064E-15 -5.7891E-14
 -5.0502E-14  7.8461E-14  4.1863E-15 -3.0064E-15  3.1288E-13  4.5678E-13
 -2.0112E-12  1.5553E-12  7.6162E-14 -5.7891E-14  4.5678E-13  8.9220E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.276489  -56.887988    0.143942    0.004604   -1.004049  2451377.935973
# Heliocentric elements and errors
Epoch:              2451370.5000  =  1999/07/11
Mean Anomaly:           98.94805 +/-     0.115
Argument of Peri:       67.98345 +/-     0.103
Long of Asc Node:      130.32720 +/-     0.001
Inclination:             2.09748 +/-     0.000
Eccentricity:         0.05044651 +/-    0.0001
Semi-Major Axis:     43.40557224 +/-    0.0042
Time of Perihelion: 2422661.2812 +/-      33.0
Perihelion:          41.21591251 +/-    0.0067
Aphelion:            45.59523197 +/-    0.0069
Period (y)              285.9739 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.84194574 +/-    0.0006
Ecliptic Y          -36.80549913 +/-    0.0009
Ecliptic Z            0.20665500 +/-    0.0000
Ecliptic XDOT         0.00223445 +/-    0.0000
Ecliptic YDOT         0.00129486 +/-    0.0000
Ecliptic ZDOT        -0.00009308 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.85345880 +/-    0.0008
Geocenter to KBO     42.84610720 +/-    0.0010
# Hcoef:  8.30

The following table shows the complete astrometric record for 01OZ108. 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 (01OZ108) followed by the observatory code and reference code for the source of the astrometry.

1999 07  18.43523  20 21 21.50   -19 11 34.2         01OZ108   568  Cf8906      
1999 07  18.48928  20 21 21.25   -19 11 35.3         01OZ108   568  Cf8906      
2001 07  24.38191  20 31 15.61   -18 43 00.4   24.0R 01OZ108   568  Cd4517      
2001 07  24.42286  20 31 15.39   -18 43 01.4   24.4R 01OZ108   568  Cd4517      
2001 07  24.46359  20 31 15.18   -18 43 01.9   24.4R 01OZ108   568  Cd4517      
2001 07  25.50785  20 31 10.29   -18 43 19.9         01OZ108   568  Cd4517      
2001 09  19.17328  20 27 27.34   -18 56 58.0   24.5R 01OZ108   675  Ce3591      
2001 09  19.24410  20 27 27.16   -18 56 58.6         01OZ108   675  Ce3591      
2001 11  14.01294  20 27 23.53   -18 57 49.5   24.8R 01OZ108   309  Ce3591      
2001 11  14.05192  20 27 23.63   -18 57 49.6   25.2R 01OZ108   309  Ce3591      
2002 06  07.51887  20 39 27.68   -18 15 29.3   24. R 01OZ108   568  Cf8906      
2002 06  07.57025  20 39 27.54   -18 15 29.8         01OZ108   568  Cf8906      
2002 06  08.40972  20 39 25.39   -18 15 39.0         01OZ108   675  Cf8906      
2002 06  08.46513  20 39 25.21   -18 15 39.3   24.5R 01OZ108   675  Cf8906      
2006 07  29.63384  20 56 22.88   -17 20 29.2   23.9R 01OZ108   250  S~06AP      
2006 07  29.63824  20 56 22.85   -17 20 29.3         01OZ108   250  S~06AP      
2006 07  29.64264  20 56 22.83   -17 20 29.4         01OZ108   250  S~06AP      
2006 07  29.64703  20 56 22.82   -17 20 29.5         01OZ108   250  S~06AP      

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    -0.02       0.00     0.50
  2   0.0001     -3.70     0.04      -0.26     0.25
  3   2.0177   8599.36     0.32    -332.22    -0.17
  4   2.0178   8596.08    -0.08    -332.42    -0.37
  5   2.0179   8593.06    -0.24    -332.18    -0.12
  6   2.0207   8521.18     0.03    -332.71    -0.20
  7   2.1731   5248.44    -0.01    -363.57     0.08
  8   2.1733   5245.82     0.08    -363.54     0.13
  9   2.3260   5183.63    -0.02    -400.70     0.14
 10   2.3261   5184.98    -0.08    -401.13    -0.29
 11   2.8887  15815.98    -0.14    -478.61     0.21
 12   2.8888  15813.91    -0.18    -478.58     0.24
 13   2.8911  15781.77     0.31    -479.68    -0.57
 14   2.8913  15779.20    -0.03    -479.32    -0.20
 15   7.0313  30866.95     0.08   -1157.67     0.09
 16   7.0314  30866.50    -0.07   -1157.65     0.12
 17   7.0314  30866.19    -0.07   -1157.67     0.10
 18   7.0314  30866.02     0.07   -1157.73     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.

01OZ108    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.329    43.341    43.316
ecceobj         0.051     0.051     0.051
incobj          2.098     2.098     2.098
qmin           40.318    40.314    40.286
qmax           46.626    46.659    46.581
amean          43.362    43.375    43.349
amin           43.024    43.038    43.009
amax           43.716    43.736    43.710
emean           0.048     0.048     0.048
emin            0.029     0.030     0.029
emax            0.067     0.067     0.066
imean           1.688     1.682     1.693
imin            0.720     0.722     0.718
imax            2.418     2.411     2.425
excite_mean     0.057     0.057     0.057
fracstop        1.000     1.000     1.000
cjmean          3.090     3.090     3.090

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       189.3     189.2     189.2
kozaiamp        180.0     179.8     180.0