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 Fri Oct 20 01:37:40 2017
# 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:
  6.615042E-06  6.265793E-03  4.735398E-07  1.882008E-04  1.508407E-02 -1.822256E-04
# Covariance matrix:
 -1.0880E-10 -1.1101E-07  4.8978E-13 -4.2417E-11 -1.8002E-08  9.7039E-09
 -1.1101E-07 -1.1289E-04  4.9807E-10 -4.3125E-08 -1.8306E-05  1.0300E-05
  4.8978E-13  4.9807E-10  3.6759E-13 -2.4985E-12  8.0766E-11 -4.3917E-11
 -4.2417E-11 -4.3125E-08 -2.4985E-12  4.1398E-11 -6.9942E-09  3.2844E-09
 -1.8002E-08 -1.8306E-05  8.0766E-11 -6.9942E-09 -2.9685E-06  1.6223E-06
  9.7039E-09  1.0300E-05 -4.3917E-11  3.2844E-09  1.6223E-06 -2.5278E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.482174  128.162138    0.391747    0.007728   -0.903204  2453741.033284
# Heliocentric elements and errors
Epoch:              2453740.5000  =  2006/01/05
Mean Anomaly:          183.98630 +/-   315.177
Argument of Peri:      194.45959 +/-   194.460
Long of Asc Node:      112.40742 +/-   112.407
Inclination:             1.78798 +/-     1.788
Eccentricity:         0.70534080 +/-    0.7053
Semi-Major Axis:     39.41924152 +/-   39.4192
Time of Perihelion: 2497938.7219 +/- 9999999.9
Perihelion:          11.61524222 +/-   30.1326
Aphelion:            67.22324083 +/-   72.7463
Period (y)              247.4974 +/-    371.25
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.21586708 +/-  -41.2159
Ecliptic Y           53.07344983 +/-   53.0734
Ecliptic Z            0.55792411 +/-    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   67.20007481 +/-   48.9491
Geocenter to KBO     66.29512130 +/-   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    39.491    39.330
ecceobj         0.706     0.705     0.708
incobj          1.789     1.790     1.791
qmin           11.446    11.626    11.480
qmax           67.228    69.527    67.180
amean          37.645    39.924    39.334
amin           36.077    39.407    39.330
amax           39.401    40.581    39.338
emean           0.692     0.707     0.706
emin            0.683     0.704     0.704
emax            0.706     0.713     0.708
imean           0.312     0.238     0.251
imin            0.251     0.227     0.249
imax            0.386     0.253     0.254
excite_mean     0.692     0.707     0.706
fracstop        0.001     0.000     0.000
cjmean          2.415     2.383     2.384

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       198.8     196.1     193.9
kozaiamp          4.5       0.4       0.0