Orbit Fit and Astrometric record for 06HE123

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: 06HE123   
# Created Sun Dec 17 02:37:27 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:  10.09y
# First observation: 2006/04/28
#  Last observation: 2016/05/29
Preliminary a, adot, b, bdot, g, gdot:
  -0.000077   0.025464   0.000012  -0.001671   0.024612   0.000000
# Chi-squared of fit:    12.91 DOF:   24 RMS:  0.16
# Min/Max residuals:    -0.33    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.534207E-05  2.516497E-02 -1.045766E-06 -1.651447E-03  2.490791E-02  8.513959E-04
# Covariance matrix:
  2.5942E-13 -9.8223E-14  5.8296E-16  5.5389E-15  1.8482E-13 -3.3633E-13
 -9.8223E-14  1.0898E-12  2.2147E-14 -7.4840E-14  3.4982E-13  4.3582E-12
  5.8296E-16  2.2147E-14  1.2247E-13 -1.5546E-14  1.0903E-14  8.9311E-14
  5.5389E-15 -7.4840E-14 -1.5546E-14  1.3602E-14 -2.4678E-14 -3.0162E-13
  1.8482E-13  3.4982E-13  1.0903E-14 -2.4678E-14  4.5672E-13  1.4148E-12
 -3.3633E-13  4.3582E-12  8.9311E-14 -3.0162E-13  1.4148E-12  1.7564E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.034821 -123.082005    0.329307    0.033726   -0.946034  2453853.758114
# Heliocentric elements and errors
Epoch:              2453850.5000  =  2006/04/25
Mean Anomaly:           18.38101 +/-     0.092
Argument of Peri:      130.42139 +/-     0.110
Long of Asc Node:       84.47056 +/-     0.001
Inclination:             4.22597 +/-     0.000
Eccentricity:         0.07809813 +/-    0.0001
Semi-Major Axis:     44.35659061 +/-    0.0051
Time of Perihelion: 2448341.1229 +/-      27.5
Perihelion:          40.89242399 +/-    0.0075
Aphelion:            47.82075723 +/-    0.0080
Period (y)              295.4238 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.69606991 +/-    0.0006
Ecliptic Y          -34.23498541 +/-    0.0009
Ecliptic Z            1.42548504 +/-    0.0000
Ecliptic XDOT         0.00226694 +/-    0.0000
Ecliptic YDOT        -0.00159931 +/-    0.0000
Ecliptic ZDOT        -0.00017811 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.09960855 +/-    0.0008
Geocenter to KBO     40.14788381 +/-    0.0011
# Hcoef:  7.04

The following table shows the complete astrometric record for 06HE123. 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 (06HE123) followed by the observatory code and reference code for the source of the astrometry.

2006 04  28.25736  15 40 27.63   -17 29 16.9   22.1R 06HE123   807  Cr3609      
2006 04  28.31643  15 40 27.33   -17 29 15.9         06HE123   807  Cr3609      
2006 05  01.38600  15 40 12.91   -17 28 28.0   23.0R 06HE123   695  Cr3609      
2006 05  01.45876  15 40 12.59   -17 28 26.5         06HE123   695  Cr3609      
2006 05  02.29191  15 40 08.63   -17 28 13.2         06HE123   695  Cr3609      
2006 05  02.42180  15 40 07.99   -17 28 11.1         06HE123   695  Cr3609      
2006 07  28.02476  15 34 33.86   -17 12 23.0   23.5R 06HE123   304  Cr5556      
2006 07  28.13285  15 34 33.72   -17 12 22.9         06HE123   304  Cr5556      
2006 08  21.08495  15 34 34.23   -17 13 58.1   22.4R 06HE123   807  Cs2782      
2006 08  22.08039  15 34 35.47   -17 14 06.3         06HE123   807  Cs2782      
2006 08  23.08307  15 34 36.76   -17 14 14.8         06HE123   807  Cs2782      
2007 06  16.02026  15 42 22.738  -17 42 23.97  23.1R 06HE123   304              
2007 06  16.09618  15 42 22.412  -17 42 23.17        06HE123   304              
2016 05  29.34472  16 36 43.683  -21 00 28.73  23.1R 06HE123   G37              
2016 05  29.39086  16 36 43.423  -21 00 28.46        06HE123   G37              

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     0.13       0.00    -0.00
  2   0.0002     -4.41    -0.18      -0.00    -0.00
  3   0.0086   -216.20    -0.17      -0.36    -0.33
  4   0.0088   -221.00     0.19       0.06     0.10
  5   0.0110   -279.20     0.07       0.09     0.14
  6   0.0114   -288.60    -0.07       0.04     0.14
  7   0.2485  -5163.39     0.06    -185.67    -0.07
  8   0.2488  -5165.36    -0.10    -186.05    -0.04
  9   0.3144  -5135.86     0.07    -276.89    -0.14
 10   0.3171  -5116.65     0.28    -280.69    -0.13
 11   0.3199  -5096.68    -0.32    -284.60    -0.22
 12   1.1328   1781.33    -0.07    -394.00     0.33
 13   1.1330   1776.61     0.10    -394.27     0.26
 14  10.0865  50287.86     0.13   -3466.06     0.08
 15  10.0866  50284.00    -0.13   -3466.33    -0.13

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.

06HE123    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.771    43.785    43.756
ecceobj         0.066     0.066     0.066
incobj          4.237     4.237     4.238
qmin           40.366    40.378    40.363
qmax           48.075    48.097    48.072
amean          44.099    44.113    44.083
amin           43.745    43.761    43.733
amax           44.464    44.488    44.457
emean           0.066     0.066     0.065
emin            0.050     0.050     0.049
emax            0.081     0.081     0.081
imean           2.453     2.454     2.452
imin            1.763     1.768     1.758
imax            3.064     3.061     3.067
excite_mean     0.079     0.079     0.078
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       187.1     186.7     187.4
kozaiamp        180.0     179.9     179.9