Orbit Fit and Astrometric record for 06AO101

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: 06AO101   
# Created Sat Dec  4 02:10:29 2021
# Orbit generated from Bernstein formalism
# Fitting      6 observations of      6
# Arc:  50.98d
# First observation: 2006/01/05
#  Last observation: 2006/02/25
Preliminary a, adot, b, bdot, g, gdot:
   0.000000   0.001836   0.000000   0.000186   0.014359   0.000000
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:     4.64 DOF:      7 RMS:  0.16
# Min/Max residuals:    -0.18    0.20
# Exact a, adot, b, bdot, g, gdot:
  6.615079E-06  6.265831E-03  4.735315E-07  1.882007E-04  1.508407E-02 -1.822277E-04
# Covariance matrix:
 -1.0880E-10 -1.1102E-07  4.8982E-13 -4.2419E-11 -1.8003E-08  9.7045E-09
 -1.1102E-07 -1.1290E-04  4.9810E-10 -4.3128E-08 -1.8307E-05  1.0300E-05
  4.8982E-13  4.9810E-10  3.6759E-13 -2.4985E-12  8.0772E-11 -4.3920E-11
 -4.2419E-11 -4.3128E-08 -2.4985E-12  4.1398E-11 -6.9945E-09  3.2847E-09
 -1.8003E-08 -1.8307E-05  8.0772E-11 -6.9945E-09 -2.9687E-06  1.6224E-06
  9.7045E-09  1.0300E-05 -4.3920E-11  3.2847E-09  1.6224E-06 -2.5278E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.482174  128.162138    0.391746    0.007727   -0.903205  2453741.033284
# Heliocentric elements and errors
Epoch:              2453740.5000  =  2006/01/05
Mean Anomaly:          183.98634 +/-   315.177
Argument of Peri:      194.45967 +/-   194.460
Long of Asc Node:      112.40733 +/-   112.407
Inclination:             1.78797 +/-     1.788
Eccentricity:         0.70533757 +/-    0.7053
Semi-Major Axis:     39.41930037 +/-   39.4193
Time of Perihelion: 2497938.8107 +/- 9999999.9
Perihelion:          11.61538666 +/-   30.1326
Aphelion:            67.22321408 +/-   72.7463
Period (y)              247.4979 +/-    371.25
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.21585025 +/-  -41.2159
Ecliptic Y           53.07342841 +/-   53.0734
Ecliptic Z            0.55792388 +/-    0.5579
Ecliptic XDOT        -0.00087086 +/-   -0.0009
Ecliptic YDOT        -0.00073523 +/-   -0.0007
Ecliptic ZDOT         0.00003388 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   67.20004757 +/-   48.9491
Geocenter to KBO     66.29509406 +/-   66.2951
# Hcoef:  6.93

The following table shows the complete astrometric record for 06AO101. 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 (06AO101) followed by the observatory code and reference code for the source of the astrometry.

2006 01  05.53253  08 42 51.08   +18 41 28.5         06AO101   568  Cu3139      
2006 01  05.57222  08 42 50.96   +18 41 29.0         06AO101   568  Cu3139      
2006 01  06.62466  08 42 47.61   +18 41 42.3   24.8R 06AO101   568  Cu3139      
2006 01  06.64615  08 42 47.55   +18 41 42.2   24.9R 06AO101   568  Cu3139      
2006 02  25.47014  08 40 01.64   +18 52 14.4         06AO101   568  Cu3139      
2006 02  25.50897  08 40 01.52   +18 52 15.2         06AO101   568  Cu3139      

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    -0.01       0.00    -0.06
     2   0.0001     -1.78     0.09       0.04    -0.02
     3   0.0030    -51.20    -0.16       0.54     0.20
     4   0.0030    -51.99     0.06       0.22    -0.12
     5   0.1395  -2491.57     0.06       4.37    -0.18
     6   0.1396  -2493.42    -0.07       4.70     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.

06AO101    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        39.401    39.410    39.392
ecceobj         0.706     0.706     0.707
incobj          1.789     1.807     1.772
qmin           11.450    11.515    11.534
qmax           74.488    67.227    67.228
amean          40.442    38.409    38.472
amin           37.633    37.801    37.764
amax           43.134    39.410    39.392
emean           0.712     0.697     0.699
emin            0.690     0.691     0.691
emax            0.728     0.706     0.707
imean           0.342     0.282     0.233
imin            0.251     0.271     0.227
imax            0.474     0.286     0.237
excite_mean     0.712     0.697     0.699
fracstop        0.002     0.001     0.001
cjmean          2.372     2.404     2.400

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       202.5     199.9     195.7
kozaiamp          7.8       3.8       0.8