Orbit Fit and Astrometric record for 01DD106

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: 01DD106   
# Created Tue Dec 12 02:37:09 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   19
# Arc:  14.06y
# First observation: 2001/02/28
#  Last observation: 2015/03/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.000565   0.026409  -0.000023   0.000670   0.026648   0.000000
# Chi-squared of fit:    13.19 DOF:   30 RMS:  0.15
# Min/Max residuals:    -0.38    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.565141E-05  2.591040E-02 -3.278894E-07  6.556196E-04  2.529529E-02  1.333346E-03
# Covariance matrix:
  2.3972E-13 -6.7128E-14  2.0013E-15 -1.4454E-15  1.2462E-13 -1.5132E-13
 -6.7128E-14  7.6019E-14 -1.7072E-15  1.8579E-15  1.1300E-13  1.9773E-13
  2.0013E-15 -1.7072E-15  1.4729E-13 -1.3329E-14  3.0382E-16 -4.6884E-15
 -1.4454E-15  1.8579E-15 -1.3329E-14  2.6942E-15  2.5402E-15  5.0165E-15
  1.2462E-13  1.1300E-13  3.0382E-16  2.5402E-15  9.8728E-13  2.8018E-13
 -1.5132E-13  1.9773E-13 -4.6884E-15  5.0165E-15  2.8018E-13  5.3359E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.132194  160.848260    0.016059    0.019499   -0.992484  2451968.605723
# Heliocentric elements and errors
Epoch:              2451960.5000  =  2001/02/20
Mean Anomaly:           30.58119 +/-     0.036
Argument of Peri:        0.35371 +/-     0.044
Long of Asc Node:      123.56536 +/-     0.003
Inclination:             1.82419 +/-     0.000
Eccentricity:         0.09702011 +/-    0.0001
Semi-Major Axis:     44.08174358 +/-    0.0073
Time of Perihelion: 2442879.4015 +/-      10.5
Perihelion:          39.80492803 +/-    0.0078
Aphelion:            48.35855912 +/-    0.0091
Period (y)              292.6822 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -38.26624150 +/-    0.0015
Ecliptic Y           13.31250511 +/-    0.0005
Ecliptic Z            0.78110031 +/-    0.0000
Ecliptic XDOT        -0.00106335 +/-    0.0000
Ecliptic YDOT        -0.00259915 +/-    0.0000
Ecliptic ZDOT         0.00007399 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.52330377 +/-    0.0014
Geocenter to KBO     39.53305368 +/-    0.0016
# Hcoef:  7.21

The following table shows the complete astrometric record for 01DD106. 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 (01DD106) followed by the observatory code and reference code for the source of the astrometry.

2001 02  28.10498  10 51 02.45   +08 32 45.4   22.2R 01DD106   809  Cd0833      
2001 02  28.19542  10 51 02.01   +08 32 48.0         01DD106   809  Cd0833      
2001 02  28.24344  10 51 01.77   +08 32 49.4         01DD106   809  Cd0833      
2001 02  28.28991  10 51 01.55   +08 32 51.0         01DD106   809  Cd0833      
2001 03  01.13639  10 50 57.56   +08 33 15.5         01DD106   809  Cd0833      
2001 03  01.27480  10 50 56.91   +08 33 19.6         01DD106   809  Cd0833      
2003 04  01.21285  10 59 50.69   +07 43 27.3   23.0R 01DD106   695  Ci2123      
2003 04  01.30936  10 59 50.29   +07 43 29.8         01DD106   695  Ci2123      
2003 05  29.98660  10 57 49.53   +07 54 45.5   21.9R 01DD106   807  Ci2123      
2003 05  31.01850  10 57 49.96   +07 54 41.7         01DD106   807  Ci2123      
2005 03  09.30623  11 12 34.77   +06 28 32.5   23.3R 01DD106   695  Cn0169      
2005 03  10.29578  11 12 30.19   +06 29 01.8         01DD106   695  Cn0169      
2005 03  10.39728  11 12 29.72   +06 29 05.0         01DD106   695  Cn0169      
2013 03  14.27609  11 55 19.58   +02 09 47.2   23.5R 01DD106   695  C~0ucq      
2013 03  14.38612  11 55 19.05   +02 09 50.0         01DD106   695  C~0ucq      
2013 03  14.44625  11 55 18.79   +02 09 52.1         01DD106   695  C~0ucq      
2015 03  23.19230  12 05 15.06   +01 08 36.9   23.8R 01DD106   695  C~1Q3A      
2015 03  23.25647  12 05 14.75   +01 08 39.0         01DD106   695  C~1Q3A      
2015 03  23.31520  12 05 14.47   +01 08 40.7         01DD106   695  C~1Q3A      

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     0.11       0.00     0.15
  2   0.0002     -7.03     0.05      -0.08     0.07
  3   0.0004    -10.85    -0.07      -0.13     0.02
  4   0.0005    -14.48    -0.12       0.11     0.26
  5   0.0028    -78.53    -0.06       0.28     0.01
  6   0.0032    -89.01     0.12       0.41     0.15
  7   2.0865   8383.39     0.00     267.57    -0.11
  8   2.0868   8376.93    -0.06     267.59     0.01
  9   2.2475   6458.02     0.15     201.36    -0.30
 10   2.2503   6465.38    -0.11     200.30     0.13
 11   4.0252  20673.62    -0.20     542.71    -0.38
 12   4.0279  20598.60     0.06     542.95    -0.25
 13   4.0282  20590.82     0.11     543.16    -0.01
 14  12.0388  63903.17 (   0.13)   1652.47 (   0.52)
 15  12.0391  63893.96    -0.01    1651.77    -0.10
 16  12.0393  63889.12     0.10    1652.13     0.29
 17  14.0618  74643.50     0.24    1940.21    -0.01
 18  14.0620  74637.73    -0.09    1940.23     0.08
 19  14.0622  74632.61    -0.22    1940.07    -0.02

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.

01DD106    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.900    43.922    43.879
ecceobj         0.094     0.094     0.093
incobj          1.825     1.825     1.825
qmin           38.740    38.764    38.745
qmax           49.670    49.749    49.679
amean          44.076    44.101    44.054
amin           43.719    43.745    43.690
amax           44.457    44.495    44.438
emean           0.100     0.101     0.100
emin            0.083     0.083     0.082
emax            0.118     0.118     0.118
imean           1.274     1.267     1.280
imin            0.316     0.323     0.310
imax            2.007     1.999     2.018
excite_mean     0.103     0.103     0.103
fracstop        1.000     1.000     1.000
cjmean          3.089     3.090     3.089

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       182.0     182.9     181.1
kozaiamp        179.9     180.0     180.0