Orbit Fit and Astrometric record for 06HA123

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: 06HA123   
# Created Wed Dec 13 02:37:27 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   19
# Arc:   2.01y
# First observation: 2005/05/12
#  Last observation: 2007/05/16
Preliminary a, adot, b, bdot, g, gdot:
  -0.000006   0.024978   0.000002  -0.001416   0.024946   0.000000
# Chi-squared of fit:    20.74 DOF:   32 RMS:  0.18
# Min/Max residuals:    -0.69    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.601545E-05  2.502047E-02 -3.917746E-07 -1.418517E-03  2.500441E-02  6.001718E-04
# Covariance matrix:
  3.6370E-13 -5.3455E-13 -5.2246E-15  1.9742E-14 -2.3011E-13 -6.9524E-12
 -5.3455E-13  1.7303E-12  2.2912E-14 -8.7383E-14  1.3353E-12  3.0719E-11
 -5.2246E-15  2.2912E-14  2.7220E-13 -1.8128E-13  1.9385E-14  4.5015E-13
  1.9742E-14 -8.7383E-14 -1.8128E-13  1.7173E-13 -7.5105E-14 -1.7170E-12
 -2.3011E-13  1.3353E-12  1.9385E-14 -7.5105E-14  1.6028E-12  2.6324E-11
 -6.9524E-12  3.0719E-11  4.5015E-13 -1.7170E-12  2.6324E-11  6.0360E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.614603 -117.236101    0.189764   -0.010532   -0.989117  2453502.944243
# Heliocentric elements and errors
Epoch:              2453500.5000  =  2005/05/10
Mean Anomaly:           23.42948 +/-     0.926
Argument of Peri:      164.57548 +/-     1.039
Long of Asc Node:       52.02173 +/-     0.003
Inclination:             3.29572 +/-     0.001
Eccentricity:         0.05116526 +/-    0.0004
Semi-Major Axis:     42.98372816 +/-    0.0052
Time of Perihelion: 2446801.4263 +/-     264.6
Perihelion:          40.78445468 +/-    0.0194
Aphelion:            45.18300165 +/-    0.0196
Period (y)              281.8151 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.92719663 +/-    0.0009
Ecliptic Y          -36.35039801 +/-    0.0018
Ecliptic Z           -0.42897233 +/-    0.0000
Ecliptic XDOT         0.00240723 +/-    0.0000
Ecliptic YDOT        -0.00131781 +/-    0.0000
Ecliptic ZDOT        -0.00015596 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.98504880 +/-    0.0017
Geocenter to KBO     39.99294584 +/-    0.0020
# Hcoef:  7.04

The following table shows the complete astrometric record for 06HA123. 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 (06HA123) followed by the observatory code and reference code for the source of the astrometry.

2005 05  12.44350  16 02 18.78   -21 18 54.2   23.6g 06HA123   568  C~0VEM      
2005 05  12.46976  16 02 18.64   -21 18 53.8   23.6g 06HA123   568  C~0VEM      
2005 05  12.50108  16 02 18.48   -21 18 53.4   24.2g 06HA123   568  C~0VEM      
2005 05  13.52320  16 02 13.32   -21 18 40.1   23.6g 06HA123   568  C~0VEM      
2006 04  27.31494  16 09 31.82   -21 43 01.6   21.4R 06HA123   807  Cr3609      
2006 04  28.13991  16 09 28.19   -21 42 53.1         06HA123   807  Cr3609      
2006 04  28.20658  16 09 27.89   -21 42 52.2         06HA123   807  Cr3609      
2006 05  25.38127  16 07 13.10   -21 37 25.7   22.9r 06HA123   568  C~0VEM      
2006 05  25.46226  16 07 12.68   -21 37 24.6   23.0r 06HA123   568  C~0VEM      
2006 05  26.45115  16 07 07.54   -21 37 11.8         06HA123   568  C~0VEM      
2006 06  20.05602  16 05 05.37   -21 31 56.3   22.7R 06HA123   304  Cr4858      
2006 06  20.14288  16 05 04.97   -21 31 55.3         06HA123   304  Cr4858      
2006 07  28.03649  16 02 57.96   -21 26 09.6   22.9R 06HA123   304  Cr5556      
2006 07  28.14409  16 02 57.76   -21 26 08.9         06HA123   304  Cr5556      
2007 04  21.25183  16 15 58.876  -22 04 08.37  22.0R 06HA123   807              
2007 04  21.32600  16 15 58.566  -22 04 07.91        06HA123   807              
2007 05  16.28503  16 14 02.30   -21 59 51.4         06HA123   675  C~0VEM      
2007 05  16.32749  16 14 02.07   -21 59 50.8         06HA123   675  C~0VEM      
2007 05  16.37241  16 14 01.84   -21 59 50.3         06HA123   675  C~0VEM      

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    -0.04       0.00    -0.10
  2   0.0001     -2.00    -0.12       0.01    -0.06
  3   0.0002     -4.27    -0.10      -0.03    -0.07
  4   0.0030    -77.58     0.21      -1.09    -0.11
  5   0.9579   6209.64    -0.69    -274.44    -0.03
  6   0.9602   6158.31     0.17    -275.40     0.01
  7   0.9603   6154.03     0.20    -275.29     0.24
  8   1.0347   4245.90     0.18    -303.85    -0.10
  9   1.0350   4239.93     0.27    -303.87    -0.03
 10   1.0377   4167.10     0.10    -304.76    -0.15
 11   1.1050   2433.59     0.02    -317.84     0.14
 12   1.1053   2427.92     0.09    -317.93     0.11
 13   1.2090    621.64    -0.16    -320.39     0.26
 14   1.2093    618.77    -0.11    -320.24     0.39
 15   1.9406  11747.29    -0.02    -557.41     0.13
 16   1.9408  11742.95    -0.05    -557.70    -0.04
 17   2.0091  10101.80     0.10    -588.49    -0.24
 18   2.0093  10098.53    -0.05    -588.47    -0.16
 19   2.0094  10095.29    -0.01    -588.54    -0.18

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.

06HA123    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.535    42.551    42.520
ecceobj         0.041     0.041     0.041
incobj          3.311     3.311     3.311
qmin           40.166    40.150    40.162
qmax           45.673    45.680    45.675
amean          42.828    42.844    42.812
amin           42.504    42.518    42.481
amax           43.165    43.183    43.151
emean           0.037     0.037     0.037
emin            0.017     0.018     0.017
emax            0.059     0.058     0.059
imean           1.857     1.857     1.856
imin            0.754     0.768     0.740
imax            2.824     2.819     2.826
excite_mean     0.050     0.050     0.050
fracstop        1.000     1.000     1.000
cjmean          3.085     3.085     3.084

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       181.5     181.5     181.6
kozaiamp        180.0     179.9     179.9