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 Sat Apr 27 01:12:53 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     34 observations of     34
# Arc:  18.13y
# First observation: 2004/09/12
#  Last observation: 2022/10/29
# Chi-squared of fit:    30.54 DOF:     62 RMS:  0.17
# Min/Max residuals:    -0.64    0.41
# Exact a, adot, b, bdot, g, gdot:
  1.427246E-05  2.467787E-02  9.967830E-06  1.300018E-02  2.727481E-02  6.962787E-03
# Covariance matrix:
  2.3004E-13 -2.3836E-14  1.2133E-14 -8.3425E-15  1.3405E-13 -3.8374E-14
 -2.3836E-14  3.7364E-14 -3.1364E-14  1.9564E-14  4.4850E-14  8.6017E-14
  1.2133E-14 -3.1364E-14  9.6230E-14 -2.3832E-14 -4.2665E-14 -7.5874E-14
 -8.3425E-15  1.9564E-14 -2.3832E-14  1.2539E-14  2.5825E-14  4.7310E-14
  1.3405E-13  4.4850E-14 -4.2665E-14  2.5825E-14  2.1506E-13  1.1182E-13
 -3.8374E-14  8.6017E-14 -7.5874E-14  4.7310E-14  1.1182E-13  2.0798E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -19.260799   31.482918    0.668749   -0.249838   -0.715274  2453261.072743
# Heliocentric elements and errors
Epoch:              2453260.5000  =  2004/09/12
Mean Anomaly:           65.16838 +/-     0.008
Argument of Peri:      231.45376 +/-     0.011
Long of Asc Node:       62.53819 +/-     0.000
Inclination:            32.73336 +/-     0.000
Eccentricity:         0.23335114 +/-    0.0000
Semi-Major Axis:     39.24629605 +/-    0.0025
Time of Perihelion: 2437003.8584 +/-       2.5
Perihelion:          30.08812832 +/-    0.0020
Aphelion:            48.40446378 +/-    0.0031
Period (y)              245.8704 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.50773121 +/-    0.0005
Ecliptic Y           17.90272416 +/-    0.0003
Ecliptic Z          -12.09391202 +/-    0.0002
Ecliptic XDOT        -0.00036562 +/-    0.0000
Ecliptic YDOT         0.00267486 +/-    0.0000
Ecliptic ZDOT         0.00100147 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.38290402 +/-    0.0004
Geocenter to KBO     36.66375104 +/-    0.0006
# Hcoef:  7.50

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      
2022 10  29.394690 03 30 45.678  +12 39 59.07  23.5G 06WS195   G37  C~5yqi      
2022 10  29.443120 03 30 45.439  +12 39 57.99        06WS195   G37  C~5yqi      
2022 10  29.490970 03 30 45.219  +12 39 57.39        06WS195   G37  C~5yqi      

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     0.18       0.00    -0.47
     2   0.0001      0.00     0.41       0.00    -0.64
     3   0.0026      0.00     0.14       0.00    -0.26
     4   0.0027      0.00     0.05       0.00    -0.12
     5   0.0054      0.00     0.08       0.00     0.14
     6   0.0055      0.00    -0.30       0.00    -0.04
     7   2.1706      0.00    -0.14       0.00     0.20
     8   2.1706      0.00    -0.04       0.00     0.10
     9   2.1707      0.00    -0.07       0.00     0.13
    10   2.1787      0.00     0.00       0.00     0.18
    11   2.1787      0.00     0.06       0.00     0.16
    12   2.1788      0.00     0.07       0.00     0.24
    13   2.1897      0.00    -0.15       0.00     0.07
    14   2.1897      0.00     0.03       0.00    -0.03
    15   2.1898      0.00    -0.07       0.00     0.10
    16   2.1980      0.00    -0.08       0.00     0.11
    17   2.1980      0.00    -0.10       0.00     0.14
    18   2.2470      0.00     0.08       0.00    -0.03
    19   2.2471      0.00     0.06       0.00    -0.03
    20   2.2471      0.00     0.04       0.00    -0.12
    21   2.2687      0.00     0.12       0.00    -0.00
    22   2.2687      0.00     0.21       0.00    -0.01
    23   2.2688      0.00     0.00       0.00    -0.03
    24   2.2770      0.00    -0.11       0.00     0.14
    25   2.2771      0.00     0.03       0.00     0.17
    26   2.2771      0.00     0.02       0.00     0.20
    27   2.2851      0.00    -0.06       0.00     0.10
    28   2.2852      0.00    -0.12       0.00     0.00
    29   2.2852      0.00    -0.03       0.00     0.00
    30  10.1075      0.00    -0.10       0.00    -0.07
    31  10.1078      0.00    -0.25       0.00    -0.24
    32  18.1268      0.00    -0.03       0.00     0.23
    33  18.1270      0.00     0.01       0.00    -0.18
    34  18.1271      0.00     0.28       0.00    -0.11

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        39.689    39.689    39.689
ecceobj         0.236     0.236     0.236
incobj         32.649    32.649    32.649
qmin           25.311    25.312    25.311
qmax           54.027    54.027    54.028
amean          39.453    39.453    39.453
amin           39.068    39.069    39.067
amax           39.954    39.954    39.955
emean           0.289     0.289     0.289
emin            0.179     0.179     0.179
emax            0.357     0.357     0.357
imean          29.875    29.875    29.875
imin           27.810    27.811    27.810
imax           32.515    32.515    32.515
excite_mean     0.578     0.578     0.578
fracstop        1.000     1.000     1.000
cjmean          2.660     2.660     2.660

libcent 0       181.8     181.8     181.6
libamp  0        50.3      50.4      50.3
libcent 1       179.0     179.1     178.8
libamp  1       155.6     156.2     155.5
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