Orbit Fit and Astrometric record for 06UO321

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: 06UO321   
# Created Tue Jan 23 02:37:31 2018
# Orbit generated from Bernstein formalism
# Fitting   42 observations of   42
# Arc:  11.96y
# First observation: 2005/08/09
#  Last observation: 2017/07/24
Preliminary a, adot, b, bdot, g, gdot:
   0.000156   0.023730  -0.000006   0.000426   0.024556   0.000000
# Chi-squared of fit:    29.51 DOF:   78 RMS:  0.15
# Min/Max residuals:    -0.54    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.535238E-05  2.356591E-02  2.433689E-06  4.246746E-04  2.402455E-02  8.528928E-04
# Covariance matrix:
  2.9331E-13 -5.9716E-14  7.3602E-16 -6.2633E-16  2.9906E-14 -1.4253E-13
 -5.9716E-14  6.2004E-14 -1.4409E-15  1.1316E-15  6.0893E-14  2.5924E-13
  7.3602E-16 -1.4409E-15  2.2313E-13 -2.6472E-14 -1.6140E-15 -6.4163E-15
 -6.2633E-16  1.1316E-15 -2.6472E-14  3.7274E-15  1.2065E-15  5.0339E-15
  2.9906E-14  6.0893E-14 -1.6140E-15  1.2065E-15  1.4521E-13  2.7761E-13
 -1.4253E-13  2.5924E-13 -6.4163E-15  5.0339E-15  2.7761E-13  1.1533E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.141770    2.211605    0.723212   -0.026555   -0.713181  2453591.681733
# Heliocentric elements and errors
Epoch:              2453590.5000  =  2005/08/08
Mean Anomaly:           33.57829 +/-     0.073
Argument of Peri:      259.51735 +/-     0.080
Long of Asc Node:       65.84343 +/-     0.003
Inclination:             2.33028 +/-     0.000
Eccentricity:         0.03453779 +/-    0.0000
Semi-Major Axis:     43.57644219 +/-    0.0023
Time of Perihelion: 2443790.3630 +/-      21.4
Perihelion:          42.07140830 +/-    0.0027
Aphelion:            45.08147609 +/-    0.0028
Period (y)              287.6642 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.30086688 +/-    0.0007
Ecliptic Y            0.90940683 +/-    0.0000
Ecliptic Z           -1.55548499 +/-    0.0000
Ecliptic XDOT        -0.00000319 +/-    0.0000
Ecliptic YDOT         0.00268058 +/-    0.0000
Ecliptic ZDOT         0.00004476 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.33922405 +/-    0.0007
Geocenter to KBO     41.62408650 +/-    0.0007
# Hcoef:  7.43

The following table shows the complete astrometric record for 06UO321. 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 (06UO321) followed by the observatory code and reference code for the source of the astrometry.

2005 08  09.18099  00 11 31.36   -01 05 08.7   22.6R 06UO321   807  C~02eF      
2005 08  10.16597  00 11 28.60   -01 05 28.3         06UO321   807  C~02eF      
2005 08  10.30073  00 11 28.21   -01 05 31.2         06UO321   807  C~02eF      
2006 10  19.23187  00 11 44.43   -01 02 30.1   23.4R 06UO321   695  Ct0648      
2006 10  19.32416  00 11 44.00   -01 02 32.5         06UO321   695  Ct0648      
2006 10  20.28926  00 11 40.16   -01 02 55.9         06UO321   695  Ct0648      
2008 12  21.14717  00 19 15.08   -00 07 24.8   22.6r 06UO321   695  C~02eF      
2008 12  22.11170  00 19 15.41   -00 07 19.1   22.5r 06UO321   695  C~02eF      
2008 12  22.19302  00 19 15.45   -00 07 18.6   22.7r 06UO321   695  C~02eF      
2013 08  05.48926  00 50 47.762  +03 22 16.93  23.7r 06UO321   568  C~2NIy      
2013 08  05.53771  00 50 47.668  +03 22 16.11  23.8r 06UO321   568  C~2NIy      
2013 08  08.46817  00 50 42.242  +03 21 35.60  23.8r 06UO321   568  C~2NIy      
2013 08  08.50699  00 50 42.150  +03 21 34.77  23.8r 06UO321   568  C~2NIy      
2013 08  31.55306  00 49 38.509  +03 14 11.88  23.3r 06UO321   568  C~2NIy      
2013 09  01.43879  00 49 35.426  +03 13 51.23  23.6r 06UO321   568  C~2NIy      
2013 09  01.47776  00 49 35.290  +03 13 50.31  23.7r 06UO321   568  C~2NIy      
2013 09  05.41829  00 49 21.056  +03 12 15.68  23.4r 06UO321   568  C~2NIy      
2013 09  05.45710  00 49 20.906  +03 12 14.38  23.7r 06UO321   568  C~2NIy      
2013 09  29.34928  00 47 42.222  +03 01 37.17  23.6r 06UO321   568  C~2NIy      
2013 09  29.38812  00 47 42.050  +03 01 36.04  23.6r 06UO321   568  C~2NIy      
2013 09  29.43193  00 47 41.850  +03 01 34.83  23.7r 06UO321   568  C~2NIy      
2013 10  02.42297  00 47 28.617  +03 00 11.39  24.1r 06UO321   568  C~2NIy      
2013 10  04.51453  00 47 19.303  +02 59 13.23  23.8r 06UO321   568  C~2NIy      
2013 10  04.52297  00 47 19.276  +02 59 12.96  23.6r 06UO321   568  C~2NIy      
2013 10  04.52783  00 47 19.249  +02 59 12.98  23.7r 06UO321   568  C~2NIy      
2013 10  09.48085  00 46 57.242  +02 56 55.39  23.7r 06UO321   568  C~2NIy      
2013 11  27.27517  00 43 58.339  +02 39 29.70  23.6r 06UO321   568  C~2NIy      
2013 11  27.32692  00 43 58.205  +02 39 29.09  23.7r 06UO321   568  C~2NIy      
2014 06  25.58886  00 55 37.178  +03 56 27.39  23.6r 06UO321   568  C~2NIy      
2014 06  26.58771  00 55 38.930  +03 56 35.89  23.7r 06UO321   568  C~2NIy      
2014 07  23.56365  00 55 54.344  +03 57 04.70  24.3r 06UO321   568  C~2NIy      
2014 07  27.54407  00 55 51.418  +03 56 36.89  23.7r 06UO321   568  C~2NIy      
2014 08  22.61852  00 55 01.435  +03 50 29.03  24.1r 06UO321   568  C~2NIy      
2014 08  23.62686  00 54 58.524  +03 50 09.00  24.0r 06UO321   568  C~2NIy      
2014 08  28.45428  00 54 43.734  +03 48 28.37  23.6r 06UO321   568  C~2NIy      
2014 10  23.29554  00 50 53.135  +03 24 07.42  23.6r 06UO321   568  C~2NIy      
2014 10  27.26220  00 50 36.495  +03 22 28.14  23.0r 06UO321   568  C~2NIy      
2014 11  24.25164  00 48 58.870  +03 13 10.73  23.9r 06UO321   568  C~2NIy      
2014 11  25.24784  00 48 56.259  +03 12 56.88  23.5r 06UO321   568  C~2NIy      
2014 12  17.32730  00 48 18.068  +03 10 01.60  23.4r 06UO321   568  C~2NIy      
2015 01  18.23045  00 48 38.009  +03 13 51.82  24.1r 06UO321   568  C~2NIy      
2017 07  24.58173  01 10 23.542  +05 33 34.71  23.9w 06UO321   568  C~2NIy      

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    -0.44
  2   0.0027    -45.77     0.21      -1.53    -0.03
  3   0.0031    -52.29     0.18      -1.86    -0.16
  4   1.1938    242.91     0.24      67.60     0.14
  5   1.1941    236.04    -0.54      67.96     0.31
  6   1.1967    173.89    -0.28      69.39     0.23
  7   3.3675   7762.92    -0.10     411.74     0.04
  8   3.3701   7769.73     0.03     415.01     0.18
  9   3.3703   7770.49     0.23     415.23     0.10
 10   7.9899  39260.94    -0.02     709.35    -0.12
 11   7.9900  39259.27    -0.18     709.15    -0.26
 12   7.9980  39165.35     0.15     703.85    -0.05
 13   7.9982  39163.70    -0.14     703.62    -0.22
 14   8.0613  38076.39    -0.07     671.82    -0.05
 15   8.0637  38024.10    -0.07     671.04     0.02
 16   8.0638  38021.79    -0.01     671.00    -0.01
 17   8.0746  37780.69     0.10     668.08     0.16
 18   8.0747  37778.03    -0.08     667.76    -0.14
 19   8.1401  36116.79     0.05     665.57     0.07
 20   8.1402  36113.89     0.06     665.55     0.01
 21   8.1403  36110.57     0.02     665.62     0.04
 22   8.1485  35888.95     0.06     667.25    -0.07
 23   8.1542  35733.25    -0.10     668.94     0.09
 24   8.1543  35732.76     0.04     668.85    -0.01
 25   8.1543  35732.38     0.04     669.03     0.17
 26   8.1678  35364.57    -0.02     672.88    -0.37
 27   8.3014  32411.56     0.07     773.05     0.02
 28   8.3016  32409.43    -0.06     773.29     0.08
 29   8.8772  44247.30    -0.01     893.66    -0.03
 30   8.8800  44276.01     0.04     891.12    -0.04
 31   8.9538  44509.75    -0.12     825.57    -0.22
 32   8.9647  44456.17     0.04     817.00    -0.06
 33   9.0361  43585.82     0.01     771.57     0.20
 34   9.0389  43535.75    -0.02     770.24     0.16
 35   9.0521  43281.88     0.11     764.59     0.12
 36   9.2050  39382.75    -0.07     780.46    -0.22
 37   9.2158  39104.92     0.00     787.52    -0.00
 38   9.2925  37487.76    -0.09     852.72     0.01
 39   9.2952  37445.00     0.02     855.46    -0.01
 40   9.3556  36831.03     0.21     921.06     0.10
 41   9.4430  37208.12     0.03    1016.32     0.08
 42  11.9573  59643.62    -0.02    1093.86     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.

06UO321    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.073    44.080    44.066
ecceobj         0.043     0.043     0.043
incobj          2.327     2.327     2.327
qmin           41.359    41.345    41.349
qmax           46.457    46.484    46.443
amean          43.815    43.822    43.808
amin           43.472    43.479    43.466
amax           44.165    44.175    44.153
emean           0.037     0.037     0.036
emin            0.020     0.020     0.019
emax            0.053     0.053     0.052
imean           0.988     0.989     0.987
imin            0.133     0.136     0.130
imax            1.561     1.561     1.560
excite_mean     0.041     0.041     0.041
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       201.6     201.5     202.0
kozaiamp        179.9     179.9     180.0