Orbit Fit and Astrometric record for 00WM183

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: 00WM183   
# Created Sat Oct 21 01:37:09 2017
# Orbit generated from Bernstein formalism
# Fitting   21 observations of   22
# Arc:  15.19y
# First observation: 2000/11/26
#  Last observation: 2016/02/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000034   0.017470  -0.000028   0.002177   0.021668   0.000000
# Chi-squared of fit:    26.71 DOF:   36 RMS:  0.20
# Min/Max residuals:    -0.75    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.468073E-05  1.702022E-02  6.115950E-07  2.121826E-03  2.044317E-02 -5.160193E-04
# Covariance matrix:
  1.4394E-13 -1.1485E-13  5.2732E-15 -1.3525E-14 -7.6910E-15 -4.0887E-13
 -1.1485E-13  3.1066E-13 -1.5423E-14  3.8954E-14  1.0335E-13  1.1775E-12
  5.2732E-15 -1.5423E-14  1.0481E-13 -9.4560E-15 -6.0484E-15 -5.8757E-14
 -1.3525E-14  3.8954E-14 -9.4560E-15  6.4998E-15  1.3061E-14  1.4840E-13
 -7.6910E-15  1.0335E-13 -6.0484E-15  1.3061E-14  3.3739E-13  3.9431E-13
 -4.0887E-13  1.1775E-12 -5.8757E-14  1.4840E-13  3.9431E-13  4.4858E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.260291   64.002508   -0.005014   -0.038797   -0.979692  2451874.628143
# Heliocentric elements and errors
Epoch:              2451870.5000  =  2000/11/22
Mean Anomaly:          197.70539 +/-     0.058
Argument of Peri:      148.15888 +/-     0.054
Long of Asc Node:       81.28557 +/-     0.000
Inclination:             7.42120 +/-     0.000
Eccentricity:         0.10653839 +/-    0.0001
Semi-Major Axis:     45.26715326 +/-    0.0042
Time of Perihelion: 2502020.9447 +/-      16.6
Perihelion:          40.44446380 +/-    0.0056
Aphelion:            50.08984272 +/-    0.0062
Period (y)              304.5671 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.85433741 +/-    0.0006
Ecliptic Y           44.82076882 +/-    0.0012
Ecliptic Z           -1.92921910 +/-    0.0001
Ecliptic XDOT        -0.00208205 +/-    0.0000
Ecliptic YDOT         0.00095156 +/-    0.0000
Ecliptic ZDOT         0.00028684 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   49.90225714 +/-    0.0012
Geocenter to KBO     48.91610064 +/-    0.0014
# Hcoef:  7.18

The following table shows the complete astrometric record for 00WM183. 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 (00WM183) followed by the observatory code and reference code for the source of the astrometry.

2000 11  26.12740  04 09 48.73   +18 43 38.3   23.7R 00WM183   809  Cc4044      
2000 11  26.18511  04 09 48.49   +18 43 37.9   23.7R 00WM183   809  Cc4044      
2000 11  26.23903  04 09 48.41   +18 43 37.2   23.5R 00WM183   809  Cc4044      
2000 11  27.12684  04 09 44.31   +18 43 27.6   23.4R 00WM183   809  Cc4044      
2000 11  27.18142  04 09 44.08   +18 43 27.4   23.9R 00WM183   809  Cc4044      
2000 11  27.21127  04 09 43.96   +18 43 26.8   23.5R 00WM183   809  Cc4044      
2000 11  27.23691  04 09 43.81   +18 43 26.7   23.8R 00WM183   809  Cc4044      
2000 11  27.26212  04 09 43.72   +18 43 26.4   23.5R 00WM183   809  Cc4044      
2001 01  23.15625  04 06 21.86   +18 36 50.9         00WM183   675  Cc6726      
2001 01  23.24722  04 06 21.69   +18 36 50.1         00WM183   675  Cc6726      
2001 11  14.22891  04 14 40.89   +19 03 33.7   24.0R 00WM183   309  Ce3553      
2001 11  14.27014  04 14 40.70   +19 03 33.3   23.7R 00WM183   309  Ce3553      
2001 11  15.27272  04 14 36.38   +19 03 22.7   23.8R 00WM183   309  Ce3553      
2001 11  15.30503  04 14 36.22   +19 03 22.3   24.2R 00WM183   309  Ce3553      
2001 12  13.05384  04 12 34.32   +18 58 46.7         00WM183   950  Ce3553      
2001 12  13.10421  04 12 34.09   +18 58 46.1         00WM183   950  Ce3553      
2014 10  22.38901  05 09 20.43   +22 25 21.1   23.3R 00WM183   G37  C~1BxA      
2014 10  22.48107  05 09 20.17   +22 25 20.9         00WM183   G37  C~1BxA      
2015 11  08.38330  05 12 39.50   +22 37 17.5   24.9R 00WM183   G37  C~1dc0      
2015 11  08.43266  05 12 39.34   +22 37 17.3         00WM183   G37  C~1dc0      
2016 02  04.13055  05 06 46.27   +22 32 12.1   23.6R 00WM183   G37  C~1luu      
2016 02  04.21910  05 06 46.07   +22 32 11.9         00WM183   G37  C~1luu      

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    -0.31       0.00     0.21
  2   0.0002     -3.42     0.00       0.23     0.36
  3   0.0003     -4.67 (   2.25)     -0.24 (  -0.19)
  4   0.0027    -63.69    -0.17       1.05    -0.00
  5   0.0029    -66.94     0.12       1.45     0.32
  6   0.0030    -68.72     0.27       1.18     0.00
  7   0.0030    -70.83    -0.18       1.47     0.26
  8   0.0031    -72.15     0.14       1.41     0.17
  9   0.1589  -2964.36     0.12     147.94    -0.08
 10   0.1591  -2966.88     0.15     147.61    -0.75
 11   0.9667   4294.67     0.13     426.40    -0.01
 12   0.9669   4291.95     0.00     426.49     0.04
 13   0.9696   4229.76     0.11     426.92    -0.21
 14   0.9697   4227.46    -0.15     426.93    -0.23
 15   1.0457   2476.87    -0.02     464.95    -0.02
 16   1.0458   2473.55    -0.23     464.95    -0.12
 17  13.9035  52612.80     0.14    6266.09     0.08
 18  13.9038  52608.95     0.17    6266.22     0.12
 19  14.9494  55621.52    -0.33    6758.08    -0.03
 20  14.9495  55619.13     0.10    6758.07    -0.10
 21  15.1896  50396.12    -0.06    6889.45     0.04
 22  15.1898  50393.17     0.01    6889.51    -0.05

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.

00WM183    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.235    45.247    45.222
ecceobj         0.107     0.107     0.107
incobj          7.426     7.426     7.426
qmin           39.294    39.355    39.281
qmax           50.984    50.925    50.963
amean          44.991    45.003    44.978
amin           44.614    44.628    44.603
amax           45.389    45.409    45.382
emean           0.109     0.109     0.110
emin            0.095     0.095     0.096
emax            0.124     0.122     0.124
imean           5.611     5.611     5.611
imin            5.063     5.064     5.064
imax            6.246     6.247     6.250
excite_mean     0.147     0.147     0.147
fracstop        1.000     1.000     1.000
cjmean          3.087     3.088     3.087

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       186.5     186.6     186.7
kozaiamp        179.9     180.0     180.0