Orbit Fit and Astrometric record for 00WV12

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: 00WV12    
# Created Tue Oct 24 01:37:08 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   25
# Arc:  13.91y
# First observation: 2000/11/24
#  Last observation: 2014/10/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000409   0.021398  -0.000006   0.000417   0.022111   0.000000
# Chi-squared of fit:    92.83 DOF:   42 RMS:  0.35
# Min/Max residuals:    -0.65    0.74
# Exact a, adot, b, bdot, g, gdot:
  1.767910E-05  2.080987E-02 -9.792867E-07  4.089793E-04  2.266347E-02  1.575577E-04
# Covariance matrix:
  1.3067E-13 -1.0658E-13  8.7965E-16 -1.8364E-15  4.3941E-14 -3.0826E-13
 -1.0658E-13  1.8118E-13 -1.5399E-15  3.2799E-15 -8.7423E-14  5.5063E-13
  8.7965E-16 -1.5399E-15  7.5381E-14 -7.7122E-15 -7.8020E-16 -5.0039E-15
 -1.8364E-15  3.2799E-15 -7.7122E-15  4.1836E-15 -1.2787E-15  1.0248E-14
  4.3941E-14 -8.7423E-14 -7.8020E-16 -1.2787E-15  4.2947E-13 -2.1796E-13
 -3.0826E-13  5.5063E-13 -5.0039E-15  1.0248E-14 -2.1796E-13  1.7200E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.965867   56.223669   -0.102430   -0.033592   -0.974819  2451872.588493
# Heliocentric elements and errors
Epoch:              2451870.5000  =  2000/11/22
Mean Anomaly:          161.45069 +/-     0.155
Argument of Peri:      137.86838 +/-     0.150
Long of Asc Node:      115.92403 +/-     0.004
Inclination:             2.23009 +/-     0.000
Eccentricity:         0.03083315 +/-    0.0001
Semi-Major Axis:     43.82050568 +/-    0.0056
Time of Perihelion: 2510306.4881 +/-      44.8
Perihelion:          42.46938130 +/-    0.0066
Aphelion:            45.17163006 +/-    0.0069
Period (y)              290.0843 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           24.97775273 +/-    0.0007
Ecliptic Y           37.52771215 +/-    0.0011
Ecliptic Z           -1.51370391 +/-    0.0000
Ecliptic XDOT        -0.00208599 +/-    0.0000
Ecliptic YDOT         0.00141927 +/-    0.0000
Ecliptic ZDOT         0.00004890 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.10552749 +/-    0.0010
Geocenter to KBO     44.12387441 +/-    0.0013
# Hcoef:  6.88

The following table shows the complete astrometric record for 00WV12. 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 (00WV12) followed by the observatory code and reference code for the source of the astrometry.

2000 11  24.08775  03 37 33.75   +17 23 44.7   22.7R 00WV12    809  Cc2825      
2000 11  24.13052  03 37 33.57   +17 23 43.7   22.9R 00WV12    809  Cc2825      
2000 11  24.17851  03 37 33.35   +17 23 43.3   22.9R 00WV12    809  Cc2825      
2000 11  25.09932  03 37 29.02   +17 23 28.5   23.0R 00WV12    809  Cc2825      
2000 11  25.13418  03 37 28.83   +17 23 28.2   23.1R 00WV12    809  Cc2825      
2000 11  25.17721  03 37 28.63   +17 23 27.7   22.8R 00WV12    809  Cc2825      
2000 12  16.24178  03 35 55.11   +17 18 30.5         00WV12    695  Cc3925      
2000 12  16.28286  03 35 54.94   +17 18 30.0         00WV12    695  Cc3925      
2000 12  16.32715  03 35 54.76   +17 18 29.0   23.4R 00WV12    695  Cc3925      
2000 12  18.17323  03 35 47.35   +17 18 06.9   23.2R 00WV12    695  Cc3925      
2000 12  18.24913  03 35 47.03   +17 18 07.1   22.9R 00WV12    695  Cc3925      
2000 12  18.30520  03 35 46.84   +17 18 06.1   22.6R 00WV12    695  Cc3925      
2001 09  21.37865  03 46 30.81   +17 55 49.0         00WV12    675  Ce3547      
2001 09  21.44841  03 46 30.68   +17 55 48.6   22.8R 00WV12    675  Ce3547      
2001 09  21.51664  03 46 30.54   +17 55 48.0   22.7R 00WV12    675  Ce3547      
2001 12  12.03800  03 41 04.64   +17 37 19.6         00WV12    950  Ce3547      
2001 12  12.07244  03 41 04.48   +17 37 19.3         00WV12    950  Ce3547      
2001 12  12.10854  03 41 04.32   +17 37 18.9         00WV12    950  Ce3547      
2001 12  12.87157  03 41 01.09   +17 37 08.7         00WV12    950  Ce3547      
2002 11  11.27730  03 48 20.98   +18 02 08.1         00WV12    695  Cg5721      
2002 11  12.22073  03 48 16.57   +18 01 53.8   23.8R 00WV12    695  Cg5721      
2002 11  12.32984  03 48 16.05   +18 01 52.4   23.4R 00WV12    695  Cg5721      
2002 11  12.39027  03 48 15.75   +18 01 51.5   23.8R 00WV12    695  Cg5721      
2014 10  22.38163  04 49 01.881  +20 52 11.02  23.1R 00WV12    G37              
2014 10  22.47364  04 49 01.575  +20 52 10.40        00WV12    G37              

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    -0.65       0.00     0.26
  2   0.0001     -2.74    -0.39      -0.38    -0.15
  3   0.0002     -5.89    -0.18      -0.03     0.15
  4   0.0028    -69.62    -0.37      -0.06    -0.39
  5   0.0029    -72.33    -0.65       0.27    -0.08
  6   0.0030    -75.23    -0.53       0.45     0.06
  7   0.0607  -1446.63     0.21      23.19    -0.07
  8   0.0608  -1449.11     0.21      23.27    -0.06
  9   0.0609  -1451.85     0.14      22.90    -0.50
 10   0.0659  -1560.20     0.12      26.24    -0.11
 11   0.0662  -1564.61 (   0.19)     27.50 (   1.02)
 12   0.0663  -1567.49     0.62      27.17     0.58
 13   0.8249   7916.22     0.36     139.73     0.23
 14   0.8251   7914.32     0.55     139.75     0.37
 15   0.8253   7912.24     0.54     139.60     0.34
 16   1.0485   3123.52     0.39     100.79    -0.26
 17   1.0486   3121.23     0.30     101.02    -0.09
 18   1.0487   3118.91     0.29     101.15    -0.00
 19   1.0507   3071.61     0.74     101.71    -0.44
 20   1.9636   9535.81    -0.42     165.45     0.05
 21   1.9661   9471.17    -0.40     165.20    -0.12
 22   1.9664   9463.61    -0.36     165.45     0.10
 23   1.9666   9459.23    -0.52     165.50     0.15
 24  13.9091  63930.10     0.00    1212.53    -0.01
 25  13.9093  63925.35     0.02    1212.46    -0.01

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.

00WV12    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.808    43.825    43.792
ecceobj         0.032     0.031     0.032
incobj          2.231     2.231     2.231
qmin           41.300    41.331    41.260
qmax           45.940    45.939    45.931
amean          43.522    43.539    43.506
amin           43.196    43.206    43.173
amax           43.864    43.880    43.857
emean           0.030     0.030     0.030
emin            0.013     0.013     0.013
emax            0.047     0.047     0.048
imean           1.289     1.282     1.296
imin            0.445     0.447     0.445
imax            1.921     1.912     1.930
excite_mean     0.039     0.039     0.039
fracstop        1.000     1.000     1.000
cjmean          3.094     3.094     3.094

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       180.4     180.2     180.4
kozaiamp        180.0     180.0     180.0