Orbit Fit and Astrometric record for 00WO183

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: 00WO183   
# Created Fri Dec 15 02:37:03 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   23
# Arc:  13.90y
# First observation: 2000/11/26
#  Last observation: 2014/10/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000323   0.024920  -0.000037   0.000590   0.026902   0.000000
# Chi-squared of fit:    15.28 DOF:   34 RMS:  0.15
# Min/Max residuals:    -0.33    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.652396E-05  2.454158E-02 -8.527088E-07  5.833435E-04  2.460282E-02  8.435552E-04
# Covariance matrix:
  1.8396E-13 -4.6888E-14  6.2661E-16 -7.1619E-16  5.1755E-14 -8.8266E-14
 -4.6888E-14  3.9835E-14 -1.4206E-15  8.6546E-16  6.2321E-14  1.1035E-13
  6.2661E-16 -1.4206E-15  1.2663E-13 -1.5135E-14 -4.8772E-15 -4.6404E-15
 -7.1619E-16  8.6546E-16 -1.5135E-14  4.3039E-15  1.7309E-15  2.7070E-15
  5.1755E-14  6.2321E-14 -4.8772E-15  1.7309E-15  5.0784E-13  2.3201E-13
 -8.8266E-14  1.1035E-13 -4.6404E-15  2.7070E-15  2.3201E-13  3.4624E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.078113   64.304953    0.000161   -0.035682   -0.979824  2451874.628143
# Heliocentric elements and errors
Epoch:              2451870.5000  =  2000/11/22
Mean Anomaly:           28.58307 +/-     0.041
Argument of Peri:      271.21461 +/-     0.047
Long of Asc Node:      120.47044 +/-     0.003
Inclination:             2.44208 +/-     0.000
Eccentricity:         0.06753414 +/-    0.0001
Semi-Major Axis:     44.20242523 +/-    0.0052
Time of Perihelion: 2443347.8649 +/-      12.0
Perihelion:          41.21725231 +/-    0.0057
Aphelion:            47.18759815 +/-    0.0063
Period (y)              293.8850 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           18.04121666 +/-    0.0005
Ecliptic Y           37.49089439 +/-    0.0011
Ecliptic Z           -1.47396212 +/-    0.0000
Ecliptic XDOT        -0.00242719 +/-    0.0000
Ecliptic YDOT         0.00127519 +/-    0.0000
Ecliptic ZDOT         0.00006164 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.63202163 +/-    0.0010
Geocenter to KBO     40.64574598 +/-    0.0012
# Hcoef:  7.44

The following table shows the complete astrometric record for 00WO183. 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 (00WO183) followed by the observatory code and reference code for the source of the astrometry.

2000 11  26.12740  04 10 55.61   +18 57 42.4         00WO183   809  Cc4044      
2000 11  26.18511  04 10 55.31   +18 57 41.5   23.2R 00WO183   809  Cc4044      
2000 11  26.23903  04 10 55.05   +18 57 40.5   23.0R 00WO183   809  Cc4044      
2000 11  27.12684  04 10 50.46   +18 57 28.9         00WO183   809  Cc4044      
2000 11  27.18142  04 10 50.17   +18 57 28.1   23.1R 00WO183   809  Cc4045      
2000 11  27.21127  04 10 50.05   +18 57 28.1         00WO183   809  Cc4045      
2000 11  27.23691  04 10 49.92   +18 57 27.6   23.2R 00WO183   809  Cc4045      
2000 11  27.26212  04 10 49.75   +18 57 27.3   23.0R 00WO183   809  Cc4045      
2001 01  30.05406  04 06 43.25   +18 48 36.3   23.2R 00WO183   809  Cc6726      
2001 01  31.05068  04 06 41.82   +18 48 35.8         00WO183   809  Cc6726      
2001 01  31.07975  04 06 41.77   +18 48 36.1   23.4R 00WO183   809  Cc6726      
2003 11  20.33877  04 29 02.39   +19 47 51.5   23.5R 00WO183   695  Cj8673      
2003 11  20.41679  04 29 01.97   +19 47 50.4         00WO183   695  Cj8673      
2003 11  23.28761  04 28 47.28   +19 47 17.9   24.5R 00WO183   695  Cj8673      
2003 11  23.33686  04 28 47.01   +19 47 17.6         00WO183   695  Cj8673      
2003 11  23.39210  04 28 46.73   +19 47 16.9         00WO183   695  Cj8673      
2005 12  23.32261  04 37 52.65   +20 11 15.5   23.8R 00WO183   568  Cp7574      
2005 12  23.38122  04 37 52.35   +20 11 14.8         00WO183   568  Cp7574      
2006 01  31.234190 04 35 30.53   +20 07 56.2   22.9V 00WO183   645  C~2FZD      
2006 01  31.235019 04 35 30.54   +20 07 56.1         00WO183   645  C~2FZD      
2006 01  31.237507 04 35 30.54   +20 07 56.2         00WO183   645  C~2FZD      
2014 10  22.40381  05 35 19.88   +21 48 56.9   23.1R 00WO183   G37  C~1BxA      
2014 10  22.49550  05 35 19.64   +21 48 56.6         00WO183   G37  C~1BxA      

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    -0.15       0.00     0.25
  2   0.0002     -4.35    -0.13      -0.11     0.11
  3   0.0003     -8.16     0.14      -0.42    -0.23
  4   0.0027    -74.30     0.09       0.05    -0.07
  5   0.0029    -78.49     0.03       0.02    -0.15
  6   0.0030    -80.16 (   0.61)      0.33 (   0.14)
  7   0.0030    -82.06 (   0.65)      0.17 (  -0.02)
  8   0.0031    -84.49     0.13       0.32     0.11
  9   0.1778  -3621.15    -0.20     127.00     0.06
 10   0.1805  -3641.19     0.11     130.33     0.23
 11   0.1806  -3641.83 (   0.07)    130.76 (   0.57)
 12   2.9821  15695.18    -0.00     358.88     0.02
 13   2.9823  15689.12    -0.26     358.72    -0.14
 14   2.9902  15478.06     0.12     359.10     0.02
 15   2.9903  15474.22    -0.01     359.40     0.30
 16   2.9905  15470.19     0.11     359.33     0.22
 17   5.0738  23364.75     0.09     627.85    -0.02
 18   5.0739  23360.41    -0.09     627.77    -0.22
 19   5.1803  21332.23    -0.11     721.42    -0.20
 20   5.1803  21332.36     0.04     721.30    -0.33
 21   5.1803  21332.37     0.13     721.40    -0.23
 22  13.9036  74921.89    -0.04    1732.20     0.15
 23  13.9038  74918.09     0.04    1732.07     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.

00WO183    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.173    44.189    44.158
ecceobj         0.068     0.068     0.068
incobj          2.443     2.443     2.443
qmin           39.962    39.968    39.949
qmax           48.051    48.001    48.052
amean          43.856    43.872    43.841
amin           43.516    43.534    43.493
amax           44.226    44.248    44.229
emean           0.069     0.069     0.069
emin            0.051     0.052     0.051
emax            0.086     0.086     0.086
imean           1.651     1.644     1.656
imin            0.736     0.736     0.735
imax            2.369     2.360     2.371
excite_mean     0.075     0.075     0.076
fracstop        1.000     1.000     1.000
cjmean          3.093     3.093     3.093

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       179.7     179.5     180.3
kozaiamp        180.0     180.0     180.0