Orbit Fit and Astrometric record for 06WS195

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: 06WS195   
# Created Mon Nov 19 02:08:52 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   31 observations of   31
# Arc:  10.11y
# First observation: 2004/09/12
#  Last observation: 2014/10/22
# Chi-squared of fit:    19.85 DOF:   56 RMS:  0.14
# Min/Max residuals:    -0.45    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.412981E-05  2.467892E-02  9.048070E-06  1.300086E-02  2.727625E-02  6.967930E-03
# Covariance matrix:
  2.3434E-13 -4.6957E-14  1.8838E-14 -1.5576E-14  1.0137E-13 -1.2733E-13
 -4.6957E-14  2.4478E-13 -1.5958E-13  1.2227E-13  3.4594E-13  9.5895E-13
  1.8838E-14 -1.5958E-13  2.0885E-13 -1.0586E-13 -2.3264E-13 -6.5220E-13
 -1.5576E-14  1.2227E-13 -1.0586E-13  7.3697E-14  1.7706E-13  4.9998E-13
  1.0137E-13  3.4594E-13 -2.3264E-13  1.7706E-13  6.5257E-13  1.3832E-12
 -1.2733E-13  9.5895E-13 -6.5220E-13  4.9998E-13  1.3832E-12  3.9222E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -19.260799   31.482918    0.668749   -0.249839   -0.715275  2453261.072743
# Heliocentric elements and errors
Epoch:              2453260.5000  =  2004/09/12
Mean Anomaly:           65.16401 +/-     0.009
Argument of Peri:      231.43949 +/-     0.014
Long of Asc Node:       62.53808 +/-     0.000
Inclination:            32.73344 +/-     0.000
Eccentricity:         0.23350828 +/-    0.0001
Semi-Major Axis:     39.24481255 +/-    0.0028
Time of Perihelion: 2437005.8682 +/-       2.8
Perihelion:          30.08082393 +/-    0.0031
Aphelion:            48.40880117 +/-    0.0041
Period (y)              245.8564 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.50616601 +/-    0.0009
Ecliptic Y           17.90175949 +/-    0.0005
Ecliptic Z          -12.09330530 +/-    0.0003
Ecliptic XDOT        -0.00036522 +/-    0.0000
Ecliptic YDOT         0.00267507 +/-    0.0000
Ecliptic ZDOT         0.00100131 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.38096833 +/-    0.0008
Geocenter to KBO     36.66181513 +/-    0.0011
# Hcoef:  8.03

The following table shows the complete astrometric record for 06WS195. 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 (06WS195) followed by the observatory code and reference code for the source of the astrometry.

2004 09  12.57200  02 23 44.70   -06 06 57.1   23.8V 06WS195   568  C~0CfG      
2004 09  12.61894  02 23 44.55   -06 06 58.8         06WS195   568  C~0CfG      
2004 09  13.53563  02 23 41.36   -06 07 28.4         06WS195   568  C~0CfG      
2004 09  13.56745  02 23 41.24   -06 07 29.3         06WS195   568  C~0CfG      
2004 09  14.53884  02 23 37.80   -06 08 00.8         06WS195   568  C~0CfG      
2004 09  14.57000  02 23 37.66   -06 08 02.0         06WS195   568  C~0CfG      
2006 11  14.37555  02 27 13.47   -04 11 33.2   23.4i 06WS195   568  Ct2571      
2006 11  14.39538  02 27 13.37   -04 11 33.5   23.4i 06WS195   568  Ct2571      
2006 11  14.41916  02 27 13.24   -04 11 33.7   23.2i 06WS195   568  Ct2571      
2006 11  17.34995  02 26 57.89   -04 11 59.7   22.9i 06WS195   568  Ct2571      
2006 11  17.36013  02 26 57.84   -04 11 59.8   22.5i 06WS195   568  Ct2571      
2006 11  17.36965  02 26 57.79   -04 11 59.8   22.8i 06WS195   568  Ct2571      
2006 11  21.34729  02 26 37.36   -04 12 26.1   21.9i 06WS195   568  Ct2571      
2006 11  21.36708  02 26 37.27   -04 12 26.3   22.4i 06WS195   568  Ct2571      
2006 11  21.39287  02 26 37.13   -04 12 26.3   22.8i 06WS195   568  Ct2571      
2006 11  24.39131  02 26 22.14   -04 12 38.7   22.9i 06WS195   568  Ct2571      
2006 11  24.40090  02 26 22.09   -04 12 38.7   22.8i 06WS195   568  Ct2571      
2006 12  12.30031  02 25 02.52   -04 11 38.7   23.2i 06WS195   568  Ct2571      
2006 12  12.32011  02 25 02.44   -04 11 38.5   23.2i 06WS195   568  Ct2571      
2006 12  12.33990  02 25 02.36   -04 11 38.4   23.3i 06WS195   568  Ct2571      
2006 12  20.20344  02 24 34.31   -04 09 57.5   23.3i 06WS195   568  Ct2571      
2006 12  20.22328  02 24 34.25   -04 09 57.2   22.9i 06WS195   568  Ct2571      
2006 12  20.24309  02 24 34.17   -04 09 56.9   23.0i 06WS195   568  Ct2571      
2006 12  23.26236  02 24 24.74   -04 09 05.9   22.5I 06WS195   568  Ct2571      
2006 12  23.27186  02 24 24.72   -04 09 05.7   22.6I 06WS195   568  Ct2571      
2006 12  23.28133  02 24 24.69   -04 09 05.5   22.6I 06WS195   568  Ct2571      
2006 12  26.21815  02 24 16.30   -04 08 09.8   23.7I 06WS195   568  Ct2571      
2006 12  26.23805  02 24 16.24   -04 08 09.5   23.1I 06WS195   568  Ct2571      
2006 12  26.25796  02 24 16.19   -04 08 09.1   23.2I 06WS195   568  Ct2571      
2014 10  22.34551  03 01 27.56   +04 45 27.8   22.9R 06WS195   G37  C~1BxO      
2014 10  22.43875  03 01 27.08   +04 45 25.8         06WS195   G37  C~1BxO      

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     0.14       0.00    -0.28
  2   0.0001      0.00     0.37       0.00    -0.45
  3   0.0026      0.00     0.10       0.00    -0.07
  4   0.0027      0.00     0.02       0.00     0.07
  5   0.0054      0.00     0.05       0.00     0.33
  6   0.0055      0.00    -0.33       0.00     0.15
  7   2.1706      0.00    -0.20       0.00     0.14
  8   2.1706      0.00    -0.10       0.00     0.03
  9   2.1707      0.00    -0.14       0.00     0.07
 10   2.1787      0.00    -0.05       0.00     0.12
 11   2.1787      0.00     0.01       0.00     0.10
 12   2.1788      0.00     0.02       0.00     0.18
 13   2.1897      0.00    -0.18       0.00     0.01
 14   2.1897      0.00    -0.00       0.00    -0.09
 15   2.1898      0.00    -0.11       0.00     0.04
 16   2.1980      0.00    -0.10       0.00     0.05
 17   2.1980      0.00    -0.13       0.00     0.08
 18   2.2470      0.00     0.11       0.00    -0.09
 19   2.2471      0.00     0.08       0.00    -0.08
 20   2.2471      0.00     0.06       0.00    -0.18
 21   2.2687      0.00     0.16       0.00    -0.07
 22   2.2687      0.00     0.25       0.00    -0.08
 23   2.2688      0.00     0.05       0.00    -0.09
 24   2.2770      0.00    -0.06       0.00     0.08
 25   2.2771      0.00     0.08       0.00     0.11
 26   2.2771      0.00     0.07       0.00     0.14
 27   2.2851      0.00    -0.00       0.00     0.04
 28   2.2852      0.00    -0.06       0.00    -0.06
 29   2.2852      0.00     0.03       0.00    -0.06
 30  10.1075      0.00     0.12       0.00     0.05
 31  10.1078      0.00    -0.03       0.00    -0.12

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.

06WS195    quality flag:3

Type:           3:2E      3:2E      3:2E
Type:          6:4II     6:4II     6:4II

axisobj        39.688    39.688    39.688
ecceobj         0.236     0.236     0.236
incobj         32.649    32.649    32.649
qmin           25.306    25.307    25.305
qmax           54.022    54.017    54.026
amean          39.453    39.453    39.453
amin           39.069    39.070    39.068
amax           39.955    39.955    39.955
emean           0.289     0.289     0.289
emin            0.178     0.178     0.178
emax            0.357     0.357     0.357
imean          29.881    29.881    29.881
imin           27.817    27.817    27.816
imax           32.518    32.518    32.518
excite_mean     0.578     0.578     0.578
fracstop        1.000     1.000     1.000
cjmean          2.660     2.660     2.660

libcent 0       180.6     180.5     180.8
libamp  0        50.1      50.1      50.1
libcent 1       179.4     179.2     179.2
libamp  1       156.0     155.9     156.3
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       267.2     267.2     267.2
kozaiamp         47.5      47.5      47.5