Orbit Fit and Astrometric record for 00OU69

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: 00OU69    
# Created Mon Dec 11 02:37:07 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   23
# Arc:  12.86y
# First observation: 2000/07/29
#  Last observation: 2013/06/09
Preliminary a, adot, b, bdot, g, gdot:
  -0.001075   0.025927   0.000077  -0.001496   0.024165   0.000000
# Chi-squared of fit:    32.51 DOF:   40 RMS:  0.21
# Min/Max residuals:    -0.57    0.40
# Exact a, adot, b, bdot, g, gdot:
  1.657364E-05  2.499244E-02 -9.065575E-07 -1.444429E-03  2.493952E-02 -2.600170E-04
# Covariance matrix:
  2.2807E-13 -1.2834E-13 -6.8505E-15  6.3522E-15 -1.7906E-14 -3.1852E-13
 -1.2834E-13  1.3049E-13  8.1059E-15 -6.6859E-15 -5.9639E-14  3.3640E-13
 -6.8505E-15  8.1059E-15  9.8170E-14 -1.1697E-14 -5.8904E-15  2.1287E-14
  6.3522E-15 -6.6859E-15 -1.1697E-14  4.0764E-15  2.5644E-15 -1.7805E-14
 -1.7906E-14 -5.9639E-14 -5.8904E-15  2.5644E-15  2.6663E-13 -1.3259E-13
 -3.1852E-13  3.3640E-13  2.1287E-14 -1.7805E-14 -1.3259E-13  8.9546E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.018173  -61.206721   -0.124708   -0.053232   -1.006222  2451754.574243
# Heliocentric elements and errors
Epoch:              2451750.5000  =  2000/07/25
Mean Anomaly:          348.13723 +/-     0.055
Argument of Peri:      234.75786 +/-     0.061
Long of Asc Node:       77.34616 +/-     0.001
Inclination:             4.42699 +/-     0.000
Eccentricity:         0.04772316 +/-    0.0001
Semi-Major Axis:     43.11178550 +/-    0.0044
Time of Perihelion: 2455157.5317 +/-      15.8
Perihelion:          41.05435470 +/-    0.0052
Aphelion:            45.16921631 +/-    0.0056
Period (y)              283.0755 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.88698927 +/-    0.0004
Ecliptic Y          -35.90929163 +/-    0.0007
Ecliptic Z           -2.11125528 +/-    0.0000
Ecliptic XDOT         0.00237958 +/-    0.0000
Ecliptic YDOT         0.00135938 +/-    0.0000
Ecliptic ZDOT        -0.00015670 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.10263941 +/-    0.0007
Geocenter to KBO     40.09700999 +/-    0.0008
# Hcoef:  6.27

The following table shows the complete astrometric record for 00OU69. 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 (00OU69) followed by the observatory code and reference code for the source of the astrometry.

2000 07  29.07350  20 06 22.73   -23 21 16.8   22.0R 00OU69    807  Cd1702      
2000 07  29.18080  20 06 22.17   -23 21 18.5         00OU69    807  Cd1702      
2000 09  20.11778  20 02 51.66   -23 29 58.7   23.2R 00OU69    695  Cd1702      
2000 09  20.20143  20 02 51.49   -23 29 59.2         00OU69    695  Cd1702      
2001 05  23.28180  20 17 09.99   -22 50 08.0   22.2R 00OU69    807  Cd7641      
2001 05  23.36202  20 17 09.82   -22 50 08.9         00OU69    807  Cd7641      
2001 06  12.28897  20 16 12.89   -22 54 37.5   21.5  00OU69    304  Ce6494      
2001 06  12.36625  20 16 12.61   -22 54 38.6         00OU69    304  Ce6494      
2001 08  19.08332  20 10 50.54   -23 12 46.9   21.1R 00OU69    807  Cd7641      
2001 08  19.15838  20 10 50.20   -23 12 47.9         00OU69    807  Cd7641      
2001 08  20.08816  20 10 46.00   -23 12 58.6         00OU69    807  Cd7641      
2002 06  06.53543  20 22 37.55   -22 38 17.9         00OU69    568  Cf8835      
2002 06  06.54045  20 22 37.52   -22 38 17.8         00OU69    568  Cf8835      
2002 06  06.55689  20 22 37.49   -22 38 18.1         00OU69    568  Cf8835      
2002 06  06.56615  20 22 37.45   -22 38 18.3         00OU69    568  Cf8835      
2002 06  06.57338  20 22 37.44   -22 38 18.3         00OU69    568  Cf8835      
2002 06  18.36185  20 21 56.16   -22 41 22.2   22.6R 00OU69    695  Cf8835      
2002 06  18.38773  20 21 56.06   -22 41 22.7         00OU69    695  Cf8835      
2004 07  17.32674  20 31 52.00   -22 18 20.3   22.8R 00OU69    688  Cl0684      
2004 07  17.40589  20 31 51.54   -22 18 22.2         00OU69    688  Cl0684      
2013 06  09.22552  21 27 39.96   -19 02 40.8   22.6R 00OU69    304  C~0snV      
2013 06  09.30361  21 27 39.79   -19 02 42.2         00OU69    304  C~0snV      
2013 06  09.37646  21 27 39.65   -19 02 43.2         00OU69    304  C~0snV      

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    -0.15       0.00    -0.00
  2   0.0003     -7.90    -0.17      -0.05    -0.04
  3   0.1452  -2950.49     0.07      86.86     0.24
  4   0.1455  -2952.88     0.20      86.84    -0.06
  5   0.8164   9129.20    -0.17    -120.76    -0.12
  6   0.8167   9126.70    -0.20    -121.10    -0.10
  7   0.8712   8298.08    -0.02    -205.06    -0.27
  8   0.8714   8294.06     0.10    -205.26    -0.21
  9   1.0568   3714.47    -0.04    -285.73    -0.26
 10   1.0570   3709.68     0.03    -285.69    -0.35
 11   1.0596   3650.81     0.01    -283.62     0.40
 12   1.8548  13716.38     0.17    -478.41     0.15
 13   1.8548  13716.00     0.02    -478.22     0.36
 14   1.8548  13715.52     0.30    -478.41     0.23
 15   1.8549  13714.93     0.14    -478.47     0.20
 16   1.8549  13714.80     0.33    -478.44     0.26
 17   1.8872  13113.66    -0.20    -522.88    -0.01
 18   1.8872  13112.19    -0.18    -523.04    -0.09
 19   3.9678  21519.61     0.33   -1190.11    -0.09
 20   3.9681  21512.88    -0.57   -1190.35    -0.26
 21  12.8628  72578.98     0.31   -3897.39     0.08
 22  12.8631  72575.91    -0.15   -3897.93    -0.06
 23  12.8633  72573.43    -0.15   -3898.22    -0.00

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.

00OU69    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.193    43.206    43.180
ecceobj         0.050     0.050     0.049
incobj          4.426     4.426     4.426
qmin           40.429    40.419    40.388
qmax           46.255    46.316    46.235
amean          43.237    43.250    43.224
amin           42.896    42.908    42.892
amax           43.588    43.597    43.579
emean           0.044     0.044     0.044
emin            0.024     0.024     0.023
emax            0.062     0.062     0.062
imean           2.470     2.475     2.466
imin            1.590     1.597     1.584
imax            3.281     3.280     3.283
excite_mean     0.063     0.063     0.062
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       180.2     180.3     180.8
kozaiamp        180.0     180.0     180.0