Orbit Fit and Astrometric record for 06HB123

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: 06HB123   
# Created Thu Dec 14 02:37:27 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:   7.11y
# First observation: 2006/04/28
#  Last observation: 2013/06/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000083   0.026636   0.000007  -0.000362   0.025220   0.000000
# Chi-squared of fit:    27.74 DOF:   24 RMS:  0.24
# Min/Max residuals:    -0.88    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.681044E-05  2.638519E-02  1.613041E-08 -3.581962E-04  2.550285E-02 -2.728521E-04
# Covariance matrix:
  2.6556E-13 -2.0661E-13  2.4799E-16  2.6717E-15  1.1200E-13 -1.0419E-12
 -2.0661E-13  7.5079E-13  5.7401E-15 -1.1169E-14  2.3209E-13  4.0621E-12
  2.4799E-16  5.7401E-15  1.4277E-13 -2.4160E-14  5.4447E-15  3.0822E-14
  2.6717E-15 -1.1169E-14 -2.4160E-14  1.3311E-14 -3.7153E-15 -6.1462E-14
  1.1200E-13  2.3209E-13  5.4447E-15 -3.7153E-15  4.4254E-13  1.1981E-12
 -1.0419E-12  4.0621E-12  3.0822E-14 -6.1462E-14  1.1981E-12  2.2387E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.670347 -128.658571    0.236181    0.028508   -0.973631  2453853.732894
# Heliocentric elements and errors
Epoch:              2453850.5000  =  2006/04/25
Mean Anomaly:          351.67550 +/-     0.098
Argument of Peri:      125.36704 +/-     0.119
Long of Asc Node:      115.74985 +/-     0.007
Inclination:             1.80177 +/-     0.000
Eccentricity:         0.09630730 +/-    0.0001
Semi-Major Axis:     44.41236524 +/-    0.0050
Time of Perihelion: 2456350.3282 +/-      29.3
Perihelion:          40.13513027 +/-    0.0056
Aphelion:            48.68960020 +/-    0.0064
Period (y)              295.9812 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -25.27991432 +/-    0.0006
Ecliptic Y          -31.22280503 +/-    0.0008
Ecliptic Z            1.14296829 +/-    0.0000
Ecliptic XDOT         0.00223331 +/-    0.0000
Ecliptic YDOT        -0.00175316 +/-    0.0000
Ecliptic ZDOT        -0.00003932 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.19009826 +/-    0.0007
Geocenter to KBO     39.21130050 +/-    0.0010
# Hcoef:  7.04

The following table shows the complete astrometric record for 06HB123. 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 (06HB123) followed by the observatory code and reference code for the source of the astrometry.

2006 04  28.23214  15 17 28.73   -16 29 01.1   21.9R 06HB123   807  Cr3609      
2006 04  28.29620  15 17 28.42   -16 28 59.7         06HB123   807  Cr3609      
2006 05  01.36669  15 17 13.47   -16 28 00.8   23.3R 06HB123   695  Cr3609      
2006 05  01.43896  15 17 13.11   -16 27 59.7         06HB123   695  Cr3609      
2006 05  02.45601  15 17 08.09   -16 27 40.9         06HB123   695  Cr3609      
2006 08  21.05302  15 12 10.93   -16 11 29.6   22.6R 06HB123   807  Cs2782      
2006 08  22.04878  15 12 12.73   -16 11 39.8         06HB123   807  Cs2782      
2006 08  23.05024  15 12 14.66   -16 11 50.0         06HB123   807  Cs2782      
2007 04  22.27105  15 24 03.89   -16 55 19.2   22.6R 06HB123   807  Cv2001      
2007 04  22.33864  15 24 03.54   -16 55 18.4         06HB123   807  Cv2001      
2007 07  12.01225  15 18 18.58   -16 34 53.0         06HB123   304  Cv2001      
2007 07  12.09877  15 18 18.38   -16 34 52.5         06HB123   304  Cv2001      
2013 06  07.00319  15 57 18.95   -18 55 11.2   23.3R 06HB123   304  C~0sns      
2013 06  07.13100  15 57 18.28   -18 55 09.8         06HB123   304  C~0sns      
2013 06  07.31047  15 57 17.35   -18 55 07.3         06HB123   304  C~0sns      

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    -0.09       0.00    -0.05
  2   0.0002     -4.67    -0.07       0.20     0.13
  3   0.0086   -227.63     0.04       1.32     0.29
  4   0.0088   -232.92     0.12       1.04    -0.00
  5   0.0116   -307.53     0.10       0.46    -0.88
  6   0.3144  -4690.95     0.04    -185.15     0.35
  7   0.3171  -4663.23    -0.11    -188.10     0.02
  8   0.3198  -4633.70    -0.05    -190.56     0.20
  9   0.9830   5893.63     0.14     -77.26     0.28
 10   0.9832   5888.56    -0.22     -77.75    -0.24
 11   1.2041    783.46     0.06    -154.53    -0.01
 12   1.2043    780.56     0.04    -154.79    -0.05
 13   7.1096  35599.96     0.37    -536.95     0.29
 14   7.1099  35590.08     0.03    -537.56    -0.12
 15   7.1104  35576.25    -0.40    -537.86    -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.

06HB123    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.804    43.819    43.790
ecceobj         0.085     0.085     0.084
incobj          1.802     1.802     1.802
qmin           39.634    39.645    39.650
qmax           48.933    48.887    48.864
amean          44.146    44.161    44.132
amin           43.791    43.807    43.775
amax           44.535    44.541    44.509
emean           0.082     0.082     0.082
emin            0.066     0.066     0.065
emax            0.099     0.098     0.098
imean           1.027     1.022     1.032
imin            0.257     0.256     0.257
imax            1.630     1.622     1.638
excite_mean     0.084     0.085     0.084
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     3.095

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       163.5     162.7     164.3
kozaiamp        180.0     180.0     180.0