Orbit Fit and Astrometric record for 06AO98

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: 06AO98    
# Created Mon Oct 23 01:37:38 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:   8.24y
# First observation: 2004/12/13
#  Last observation: 2013/03/12
Preliminary a, adot, b, bdot, g, gdot:
  -0.000732   0.026727  -0.000436   0.011856   0.027351   0.000000
# Chi-squared of fit:    52.36 DOF:   30 RMS:  0.30
# Min/Max residuals:    -0.73    0.47
# Exact a, adot, b, bdot, g, gdot:
  1.334807E-05  2.591828E-02  8.504233E-06  1.143749E-02  2.732782E-02 -1.954215E-03
# Covariance matrix:
  3.4126E-13 -1.6572E-13  6.8545E-14 -7.4208E-14  8.9047E-14 -7.5586E-13
 -1.6572E-13  1.7644E-13 -7.7418E-14  8.3879E-14  4.0017E-14  8.5553E-13
  6.8545E-14 -7.7418E-14  1.8605E-13 -6.9656E-14 -1.2423E-14 -4.0715E-13
 -7.4208E-14  8.3879E-14 -6.9656E-14  5.6059E-14  1.3547E-14  4.4110E-13
  8.9047E-14  4.0017E-14 -1.2423E-14  1.3547E-14  1.9899E-13  1.3980E-13
 -7.5586E-13  8.5553E-13 -4.0715E-13  4.4110E-13  1.3980E-13  4.4985E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.409562  128.075355    0.716399    0.004932   -0.675512  2453352.879171
# Heliocentric elements and errors
Epoch:              2453350.5000  =  2004/12/11
Mean Anomaly:          289.84590 +/-     0.028
Argument of Peri:       81.28980 +/-     0.038
Long of Asc Node:      126.06779 +/-     0.000
Inclination:            23.81771 +/-     0.000
Eccentricity:         0.09100896 +/-    0.0001
Semi-Major Axis:     38.16620780 +/-    0.0025
Time of Perihelion: 2470133.4190 +/-       6.5
Perihelion:          34.69274109 +/-    0.0035
Aphelion:            41.63967450 +/-    0.0038
Period (y)              235.7907 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.42338937 +/-    0.0004
Ecliptic Y           29.77879830 +/-    0.0005
Ecliptic Z            0.26188073 +/-    0.0000
Ecliptic XDOT        -0.00191910 +/-    0.0000
Ecliptic YDOT        -0.00176913 +/-    0.0000
Ecliptic ZDOT         0.00114452 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.27806058 +/-    0.0004
Geocenter to KBO     36.59274797 +/-    0.0006
# Hcoef:  7.52

The following table shows the complete astrometric record for 06AO98. 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 (06AO98) followed by the observatory code and reference code for the source of the astrometry.

2004 12  13.378428 08 42 25.08   +18 38 37.0         06AO98    645  C~1ReI      
2004 12  13.379257 08 42 25.08   +18 38 37.0         06AO98    645  C~1ReI      
2004 12  13.381745 08 42 25.07   +18 38 37.1         06AO98    645  C~1ReI      
2006 01  05.60000  08 47 35.17   +19 02 31.0         06AO98    568  Cq2894      
2006 01  05.65653  08 47 34.90   +19 02 32.6         06AO98    568  Cq2894      
2006 01  06.63376  08 47 29.99   +19 02 59.4   23.7R 06AO98    568  Cq2894      
2006 01  06.65528  08 47 29.85   +19 02 59.9   23.8R 06AO98    568  Cq2894      
2006 03  02.20869  08 42 37.89   +19 27 43.8   22.8R 06AO98    695  Cq7133      
2006 03  02.26492  08 42 37.62   +19 27 45.1         06AO98    695  Cq7133      
2006 03  02.32152  08 42 37.35   +19 27 46.0         06AO98    695  Cq7133      
2006 04  25.99565  08 40 42.32   +19 39 26.4   22.2R 06AO98    807  Cr3595      
2006 04  26.99498  08 40 43.12   +19 39 27.9         06AO98    807  Cr3595      
2006 04  27.99732  08 40 44.07   +19 39 28.9         06AO98    807  Cr3595      
2008 12  21.49168  09 09 26.80   +19 34 30.8   22.7r 06AO98    695  C~0hkV      
2008 12  21.55095  09 09 26.59   +19 34 32.4   23.0r 06AO98    695  C~0hkV      
2008 12  22.46934  09 09 23.21   +19 34 56.8   22.6r 06AO98    695  C~0hkV      
2013 03  12.14207  09 31 05.54   +20 54 53.1   23.0R 06AO98    G37  C~0qSd      
2013 03  12.28040  09 31 04.86   +20 54 56.3         06AO98    G37  C~0qSd      

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     0.34       0.00    -0.39
  2   0.0000      0.00     0.39       0.00    -0.39
  3   0.0000     -0.16     0.36       0.06    -0.35
  4   1.0629   3872.18    -0.73    2539.26     0.11
  5   1.0630   3868.07    -0.50    2539.78     0.25
  6   1.0657   3793.80    -0.14    2547.10     0.45
  7   1.0658   3791.75    -0.52    2547.06     0.26
  8   1.2151   -587.95     0.47    2893.46     0.11
  9   1.2153   -591.98     0.35    2893.73     0.09
 10   1.2154   -595.90     0.35    2893.61    -0.31
 11   1.3651  -2347.70    -0.30    3151.24    -0.07
 12   1.3679  -2337.16    -0.37    3155.59     0.02
 13   1.3706  -2324.44     0.07    3160.00     0.17
 14   4.0222  21241.68    -0.02    9637.24     0.10
 15   4.0224  21238.34     0.11    9637.89     0.19
 16   4.0249  21184.89     0.03    9647.00     0.11
 17   8.2430  37530.32     0.22   20163.44    -0.10
 18   8.2434  37519.89    -0.11   20163.25    -0.22

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.

06AO98    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.023    38.031    38.016
ecceobj         0.085     0.085     0.085
incobj         23.858    23.858    23.858
qmin           34.129    34.211    34.247
qmax           42.020    42.079    41.973
amean          37.991    38.027    37.996
amin           37.670    37.741    37.689
amax           38.311    38.339    38.313
emean           0.078     0.079     0.076
emin            0.059     0.062     0.058
emax            0.097     0.099     0.097
imean          22.350    22.373    22.376
imin           21.409    21.456    21.446
imax           23.745    23.716    23.731
excite_mean     0.388     0.389     0.388
fracstop        1.000     1.000     1.000
cjmean          2.866     2.866     2.866

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       178.8     177.8     178.4
kozaiamp        179.9     180.0     179.9