Orbit Fit and Astrometric record for 01OK108

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: 01OK108   
# Created Tue Oct 24 01:37:12 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   19
# Arc:  14.22y
# First observation: 1999/07/20
#  Last observation: 2013/10/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000640   0.023949   0.000028  -0.000831   0.024016   0.000000
# Chi-squared of fit:    16.19 DOF:   32 RMS:  0.16
# Min/Max residuals:    -0.36    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.557445E-05  2.375004E-02  2.872572E-07 -8.213981E-04  2.432049E-02  7.579251E-04
# Covariance matrix:
  4.7541E-13 -2.3495E-13 -1.2757E-14  8.3286E-15  3.2482E-14 -6.4904E-13
 -2.3495E-13  1.4947E-13  8.3494E-15 -5.4628E-15 -4.2478E-15  4.2463E-13
 -1.2757E-14  8.3494E-15  1.3803E-13 -1.3453E-14 -1.6701E-15  2.4544E-14
  8.3286E-15 -5.4628E-15 -1.3453E-14  3.0564E-15  8.8956E-16 -1.6007E-14
  3.2482E-14 -4.2478E-15 -1.6701E-15  8.8956E-16  2.9799E-13 -8.7909E-14
 -6.4904E-13  4.2463E-13  2.4544E-14 -1.6007E-14 -8.7909E-14  1.2490E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.261656  -57.754879    0.096540   -0.004852   -1.009335  2451379.848853
# Heliocentric elements and errors
Epoch:              2451370.5000  =  1999/07/11
Mean Anomaly:           49.91460 +/-     0.079
Argument of Peri:      134.36216 +/-     0.085
Long of Asc Node:      114.78047 +/-     0.001
Inclination:             1.99650 +/-     0.000
Eccentricity:         0.03372761 +/-    0.0001
Semi-Major Axis:     43.03435387 +/-    0.0043
Time of Perihelion: 2437073.4495 +/-      22.5
Perihelion:          41.58290786 +/-    0.0053
Aphelion:            44.48579989 +/-    0.0055
Period (y)              282.3132 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           22.40305311 +/-    0.0005
Ecliptic Y          -35.67918121 +/-    0.0008
Ecliptic Z           -0.18773758 +/-    0.0000
Ecliptic XDOT         0.00230314 +/-    0.0000
Ecliptic YDOT         0.00136320 +/-    0.0000
Ecliptic ZDOT        -0.00009281 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.12998939 +/-    0.0007
Geocenter to KBO     41.11759683 +/-    0.0009
# Hcoef:  7.56

The following table shows the complete astrometric record for 01OK108. 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 (01OK108) followed by the observatory code and reference code for the source of the astrometry.

1999 07  20.34811  20 18 17.76   -19 54 51.8   23.3R 01OK108   568  Cf8906      
1999 07  20.37552  20 18 17.63   -19 54 52.2   23.2R 01OK108   568  Cf8906      
1999 07  20.40243  20 18 17.49   -19 54 52.7         01OK108   568  Cf8906      
2001 07  24.35455  20 29 14.23   -19 23 33.8   23.9R 01OK108   568  Cd3420      
2001 07  24.39547  20 29 14.02   -19 23 34.6   23.0R 01OK108   568  Cd3420      
2001 07  24.43635  20 29 13.81   -19 23 35.3   22.7R 01OK108   568  Cd3420      
2001 07  25.38578  20 29 09.18   -19 23 52.4   23.1R 01OK108   568  Cd3420      
2001 09  20.15725  20 25 15.55   -19 37 36.2   23.6R 01OK108   675  Ce0251      
2001 09  20.16155  20 25 15.53   -19 37 36.2   23.4R 01OK108   675  Ce0251      
2001 09  20.20371  20 25 15.43   -19 37 36.4   24.2R 01OK108   675  Ce0251      
2001 09  20.20785  20 25 15.42   -19 37 36.3   23.9R 01OK108   675  Ce0251      
2002 06  07.39777  20 38 01.59   -18 54 05.5   24. R 01OK108   675  Cf8906      
2002 06  07.42708  20 38 01.50   -18 54 06.0         01OK108   675  Cf8906      
2002 06  07.44869  20 38 01.40   -18 54 06.2         01OK108   675  Cf8906      
2002 06  08.42175  20 37 58.76   -18 54 16.8         01OK108   675  Cf8906      
2013 10  05.13939  21 29 46.54   -15 44 25.0   23.3R 01OK108   695  C~0zdD      
2013 10  06.11748  21 29 44.15   -15 44 36.3         01OK108   695  C~0zdD      
2013 10  07.14082  21 29 41.69   -15 44 46.7         01OK108   695  C~0zdD      
2013 10  07.22721  21 29 41.49   -15 44 48.1         01OK108   695  C~0zdD      

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    -0.03       0.00    -0.17
  2   0.0001     -1.88     0.08       0.02    -0.13
  3   0.0001     -3.91    -0.01      -0.02    -0.16
  4   2.0123   9462.03     0.02    -340.27     0.08
  5   2.0124   9458.95    -0.08    -340.33     0.03
  6   2.0126   9455.89    -0.17    -340.29     0.08
  7   2.0152   9388.05    -0.10    -341.08    -0.26
  8   2.1706   5978.91     0.03    -353.25    -0.00
  9   2.1706   5978.63    -0.08    -353.18     0.07
 10   2.1707   5977.21     0.08    -353.05     0.19
 11   2.1707   5977.10     0.12    -352.92     0.32
 12   2.8831  17172.82     0.36    -477.00     0.00
 13   2.8832  17171.45     0.19    -477.16    -0.14
 14   2.8832  17170.01    -0.36    -476.99     0.04
 15   2.8859  17130.82    -0.03    -477.75     0.14
 16  14.2116  65011.31    -0.05   -2415.54     0.15
 17  14.2143  64971.40     0.07   -2415.19    -0.35
 18  14.2171  64930.75     0.01   -2413.61     0.32
 19  14.2173  64927.25    -0.03   -2414.03    -0.21

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.

01OK108    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.956    42.969    42.944
ecceobj         0.033     0.033     0.032
incobj          1.997     1.997     1.997
qmin           40.978    40.971    40.976
qmax           45.152    45.172    45.127
amean          42.988    43.001    42.976
amin           42.656    42.677    42.646
amax           43.323    43.332    43.314
emean           0.024     0.024     0.024
emin            0.005     0.005     0.005
emax            0.043     0.043     0.042
imean           1.409     1.404     1.414
imin            0.279     0.280     0.278
imax            2.110     2.101     2.120
excite_mean     0.037     0.037     0.037
fracstop        1.000     1.000     1.000
cjmean          3.088     3.088     3.088

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       178.6     179.2     178.6
kozaiamp        180.0     180.0     180.0