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 Oct 24 01:37:40 2017
# Orbit generated from Bernstein formalism
# Fitting    9 observations of    9
# Arc:   3.37y
# First observation: 2005/08/09
#  Last observation: 2008/12/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000003   0.023149   0.000004   0.000417   0.023575   0.000000
# Chi-squared of fit:    10.08 DOF:   12 RMS:  0.19
# Min/Max residuals:    -0.40    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.667421E-05  2.365692E-02  1.817597E-06  4.265894E-04  2.412172E-02  1.955267E-03
# Covariance matrix:
  8.3969E-13  4.4351E-11 -1.2780E-13  7.6160E-13  4.7097E-11  5.3961E-10
  4.4351E-11  5.7367E-09 -1.7167E-11  9.9572E-11  6.0341E-09  7.0080E-08
 -1.2780E-13 -1.7167E-11  4.0905E-13 -4.2699E-13 -1.8045E-11 -2.0986E-10
  7.6160E-13  9.9572E-11 -4.2699E-13  1.8151E-12  1.0471E-10  1.2167E-09
  4.7097E-11  6.0341E-09 -1.8045E-11  1.0471E-10  6.3477E-09  7.3706E-08
  5.3961E-10  7.0080E-08 -2.0986E-10  1.2167E-09  7.3706E-08  8.5621E-07
#      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:           61.99095 +/-     8.082
Argument of Peri:      225.71667 +/-    12.597
Long of Asc Node:       65.88254 +/-     0.050
Inclination:             2.32933 +/-     0.001
Eccentricity:         0.07229461 +/-    0.0364
Semi-Major Axis:     43.46092853 +/-    0.0100
Time of Perihelion: 2435569.7550 +/-    2349.3
Perihelion:          40.31893786 +/-    1.5814
Aphelion:            46.60291921 +/-    1.5815
Period (y)              286.5212 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.13342992 +/-    0.1367
Ecliptic Y            0.90299285 +/-    0.0053
Ecliptic Z           -1.54924449 +/-    0.0051
Ecliptic XDOT         0.00012138 +/-    0.0001
Ecliptic YDOT         0.00268490 +/-    0.0000
Ecliptic ZDOT         0.00004012 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.17157184 +/-    0.1366
Geocenter to KBO     41.45641058 +/-    0.1369
# Hcoef:  6.65

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      

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    -0.24       0.00    -0.32
  2   0.0027    -45.77     0.13      -1.53     0.10
  3   0.0031    -52.29     0.12      -1.86    -0.02
  4   1.1938    242.91     0.36      67.60     0.03
  5   1.1941    236.04    -0.40      67.96     0.21
  6   1.1967    173.89     0.03      69.39     0.12
  7   3.3675   7762.92    -0.17     411.74    -0.11
  8   3.3701   7769.73    -0.01     415.01     0.03
  9   3.3703   7770.49     0.19     415.23    -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.

06UO321    quality flag:2

Type:      CLASSICAL CLASSICAL  SCATNEAR

axisobj        43.945    44.577    43.916
ecceobj         0.075     0.065     0.079
incobj          2.326     2.329     2.326
qmin           38.441    40.548    36.981
qmax           49.427    48.313    51.102
amean          43.695    44.297    43.698
amin           43.306    43.944    43.261
amax           44.168    44.671    44.236
emean           0.076     0.066     0.114
emin            0.033     0.050     0.068
emax            0.119     0.082     0.155
imean           0.999     1.097     1.327
imin            0.079     0.323     0.286
imax            1.636     1.598     2.218
excite_mean     0.078     0.069     0.116
fracstop        1.000     1.000     1.000
cjmean          3.090     3.099     3.081

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       196.9     160.4     198.6
kozaiamp        180.0     180.0     180.0