Orbit Fit and Astrometric record for 00YA2

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: 00YA2     
# Created Sun Dec 17 02:37:06 2017
# Orbit generated from Bernstein formalism
# Fitting   17 observations of   18
# Arc:  12.89y
# First observation: 2000/12/17
#  Last observation: 2013/11/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000154   0.021995   0.000007  -0.000049   0.022312   0.000000
# Chi-squared of fit:   103.68 DOF:   28 RMS:  0.44
# Min/Max residuals:    -1.14    0.95
# Exact a, adot, b, bdot, g, gdot:
  1.403841E-05  2.161076E-02  3.611790E-06 -4.559032E-05  2.298103E-02  1.048831E-03
# Covariance matrix:
  1.7853E-13 -1.0703E-13 -6.0569E-18  2.1345E-16 -1.7485E-14 -3.1559E-13
 -1.0703E-13  2.1615E-13  1.4710E-15 -6.7369E-16 -1.3035E-13  6.7465E-13
 -6.0569E-18  1.4710E-15  1.1512E-13 -1.2158E-14 -3.3115E-15  4.3211E-15
  2.1345E-16 -6.7369E-16 -1.2158E-14  5.1986E-15  7.4452E-16 -2.1021E-15
 -1.7485E-14 -1.3035E-13 -3.3115E-15  7.4452E-16  3.5949E-13 -3.7237E-13
 -3.1559E-13  6.7465E-13  4.3211E-15 -2.1021E-15 -3.7237E-13  2.1647E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.898914   53.299633   -0.527335   -0.027485   -0.824203  2451895.790593
# Heliocentric elements and errors
Epoch:              2451890.5000  =  2000/12/12
Mean Anomaly:           84.05943 +/-     0.091
Argument of Peri:      176.09923 +/-     0.100
Long of Asc Node:      146.96974 +/-     0.006
Inclination:             1.86552 +/-     0.000
Eccentricity:         0.05966025 +/-    0.0001
Semi-Major Axis:     44.46430749 +/-    0.0060
Time of Perihelion: 2426603.3615 +/-      26.8
Perihelion:          41.81155566 +/-    0.0064
Aphelion:            47.11705932 +/-    0.0070
Period (y)              296.5005 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.06539450 +/-    0.0007
Ecliptic Y           35.85082804 +/-    0.0009
Ecliptic Z           -1.44173651 +/-    0.0000
Ecliptic XDOT        -0.00199775 +/-    0.0000
Ecliptic YDOT         0.00164280 +/-    0.0000
Ecliptic ZDOT        -0.00000939 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.34822731 +/-    0.0008
Geocenter to KBO     43.51414182 +/-    0.0011
# Hcoef:  6.97

The following table shows the complete astrometric record for 00YA2. 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 (00YA2) followed by the observatory code and reference code for the source of the astrometry.

2000 12  17.28985  03 25 37.44   +16 45 33.0   23.0R 00YA2     695  Cc4111      
2000 12  17.33635  03 25 37.28   +16 45 32.4   22.6R 00YA2     695  Cc4111      
2000 12  17.37674  03 25 37.08   +16 45 31.4   22.6R 00YA2     695  Cc4111      
2000 12  18.15238  03 25 34.06   +16 45 23.0         00YA2     695  Cc4111      
2000 12  18.24276  03 25 33.71   +16 45 21.9         00YA2     695  Cc4111      
2001 02  14.87408  03 23 59.22   +16 41 49.4         00YA2     950  Cc6738      
2001 02  16.90219  03 24 01.46   +16 42 03.3         00YA2     950  Cc6738      
2001 02  17.86432  03 24 02.67   +16 42 10.0         00YA2     950  Cc6738      
2001 08  21.09523  03 36 59.82   +17 27 58.2   23.3R 00YA2     493  Cd7671      
2001 08  22.09473  03 37 00.39   +17 27 57.5   23.9R 00YA2     493  Cd7671      
2002 11  11.23237  03 38 28.94   +17 30 28.4         00YA2     695  Cg5722      
2002 11  11.28481  03 38 28.70   +17 30 27.5         00YA2     695  Cg5722      
2002 11  12.35398  03 38 23.52   +17 30 09.3   23.1R 00YA2     695  Cg5722      
2002 11  12.41139  03 38 23.27   +17 30 08.6   23.1R 00YA2     695  Cg5722      
2003 11  21.27639  03 42 45.05   +17 44 41.6   22.5R 00YA2     695  Cj8675      
2003 11  21.35416  03 42 44.59   +17 44 41.8         00YA2     695  Cj8675      
2013 11  06.36702  04 34 22.49   +20 06 06.3   24.0R 00YA2     G37  C~0yiY      
2013 11  06.45555  04 34 22.10   +20 06 05.7         00YA2     G37  C~0yiY      

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     0.17       0.00    -0.75
  2   0.0001     -2.38     0.51      -0.01    -0.83
  3   0.0002     -5.41    -0.17      -0.27    -1.14
  4   0.0024    -49.51    -0.13       2.37     0.38
  5   0.0026    -54.65    -0.05       2.55     0.40
  6   0.1631  -1422.17    -0.02     135.16     0.15
  7   0.1687  -1387.53    -0.15     140.57     0.29
  8   0.1713  -1369.03    -0.19     142.70    -0.06
  9   0.6757  10115.56    -0.25     110.19     0.44
 10   0.6785  10123.35    -0.08     107.60     0.44
 11   1.8999  11393.93     0.79     -41.23     0.40
 12   1.9001  11390.37     0.95     -41.31     0.32
 13   1.9030  11313.84    -0.73     -41.80     0.01
 14   1.9031  11310.19    -0.31     -41.65     0.16
 15   2.9267  15168.99    -0.38     -51.05     0.02
 16   2.9269  15162.60 (  -1.18)    -49.36 (   1.67)
 17  12.8873  61631.67    -0.01    -150.80    -0.24
 18  12.8875  61625.65     0.01    -150.53     0.06

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.

00YA2    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.466    44.484    44.448
ecceobj         0.061     0.061     0.061
incobj          1.865     1.865     1.865
qmin           40.738    40.745    40.727
qmax           47.815    47.847    47.765
amean          44.150    44.168    44.133
amin           43.797    43.825    43.777
amax           44.524    44.532    44.489
emean           0.059     0.059     0.059
emin            0.043     0.043     0.042
emax            0.074     0.075     0.074
imean           1.924     1.919     1.928
imin            1.189     1.189     1.189
imax            2.570     2.563     2.575
excite_mean     0.068     0.068     0.068
fracstop        1.000     1.000     1.000
cjmean          3.098     3.098     3.098

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       169.8     170.1     170.0
kozaiamp        180.0     180.0     179.9