Orbit Fit and Astrometric record for 00YY142

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.

# Object: 00YY142   
# Created Fri May  2 02:36:33 2008
# Orbit generated from Bernstein formalism
# Fitting    3 observations of    3
# Arc:  23.18h
# First observation: 2000/12/23
#  Last observation: 2000/12/24
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# Chi-squared of fit:     0.55 DOF:    2 RMS:  0.08
# Min/Max residuals:    -0.11    0.12
# Exact a, adot, b, bdot, g, gdot:
  1.568938E-05  2.461548E-02  7.369447E-07  1.064808E-03  2.485547E-02  0.000000E+00
# Covariance matrix:
  4.8617E-11  7.3702E-08 -4.7026E-13 -7.7724E-10  1.6251E-08  0.0000E+00
  7.3702E-08  1.1519E-04 -7.2888E-10 -1.2057E-06  2.5201E-05  0.0000E+00
 -4.7026E-13 -7.2888E-10  8.6824E-13 -3.5200E-10 -1.5997E-10  0.0000E+00
 -7.7724E-10 -1.2057E-06 -3.5200E-10  3.5839E-07 -2.6453E-07  0.0000E+00
  1.6251E-08  2.5201E-05 -1.5997E-10 -2.6453E-07  5.5299E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  2.0206E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.581348  136.789445    0.685463    0.006934   -0.698849  2451902.090993
# Heliocentric elements and errors
Epoch:              2451900.5000  =  2000/12/22
Mean Anomaly:          327.55417 +/-   217.846
Argument of Peri:       46.96357 +/-   283.065
Long of Asc Node:      122.88743 +/-     9.668
Inclination:             2.55119 +/-     1.863
Eccentricity:         0.02498617 +/-    0.5925
Semi-Major Axis:     41.81113479 +/-   21.7538
Time of Perihelion: 2460800.5566 +/-  355938.1
Perihelion:          40.76643454 +/-   32.6126
Aphelion:            42.85583504 +/-   33.3298
Period (y)              270.3623 +/-    211.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.35750086 +/-    2.7740
Ecliptic Y           28.52763086 +/-    2.6062
Ecliptic Z            0.40824091 +/-    0.0386
Ecliptic XDOT        -0.00186366 +/-    0.0013
Ecliptic YDOT        -0.00197294 +/-    0.0013
Ecliptic ZDOT         0.00011746 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   40.93721094 +/-    2.6937
Geocenter to KBO     40.23259977 +/-    3.8064
# Hcoef:  7.27

The following table shows the complete astrometric record for 00YY142. 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 (00YY142) followed by the observatory code and reference code for the source of the astrometry.

2000 12  23.59025  09 17 41.95   +16 21 30.4         00YY142   568  Cd3314      
2000 12  24.46081  09 17 39.08   +16 21 44.8         00YY142   568  Cd3314      
2000 12  24.55615  09 17 38.74   +16 21 46.2   23.1R 00YY142   568  Cd3314      

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    -0.01       0.00    -0.01
  2   0.0024    -43.73     0.06       1.25     0.12
  3   0.0026    -48.81    -0.05       1.10    -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.

00YY142    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj       45.892    45.892    45.892
ecceobj        0.122     0.122     0.122
incobj         2.343     2.343     2.343
qmin          39.436    39.440    39.434
qmax          52.845    52.845    52.844
amean         45.948    45.948    45.948
amin          45.567    45.568    45.567
amax          46.398    46.398    46.398
emean          0.124     0.124     0.124
emin           0.111     0.111     0.111
emax           0.139     0.139     0.139
imean          1.163     1.163     1.163
imin           0.619     0.619     0.619
imax           1.666     1.666     1.666
fracstop       1.000     1.000     1.000
cjmean         3.106     3.106     3.106

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      187.8     187.8     187.8
kozaiamp       180.0     180.0     179.9