Orbit Fit and Astrometric record for 02VY130

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: 02VY130   
# Created Wed Dec 13 02:37:14 2017
# Orbit generated from Bernstein formalism
# Fitting    5 observations of    5
# Arc:  24.07d
# First observation: 2002/11/07
#  Last observation: 2002/12/01
Preliminary a, adot, b, bdot, g, gdot:
   0.000000   0.040786   0.000000  -0.019283   0.033904   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:     0.48 DOF:    5 RMS:  0.05
# Min/Max residuals:    -0.14    0.07
# Exact a, adot, b, bdot, g, gdot:
  1.254469E-05  2.477255E-02 -9.686280E-06 -1.926983E-02  3.135301E-02 -1.593040E-02
# Covariance matrix:
  7.3209E-11  1.4290E-07 -5.8665E-14 -1.3980E-10  2.2792E-08  5.4880E-08
  1.4290E-07  2.8178E-04 -1.1526E-10 -2.7430E-07  4.4937E-05  1.0712E-04
 -5.8665E-14 -1.1526E-10  7.2561E-13 -1.1116E-11 -1.8577E-11 -1.5570E-10
 -1.3980E-10 -2.7430E-07 -1.1116E-11  1.0199E-09 -4.4388E-08 -4.7301E-07
  2.2792E-08  4.4937E-05 -1.8577E-11 -4.4388E-08  7.1671E-06  1.7607E-05
  5.4880E-08  1.0712E-04 -1.5570E-10 -4.7301E-07  1.7607E-05  3.4041E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.419368   54.068152    0.165179   -0.007152   -0.974354  2452585.820663
# Heliocentric elements and errors
Epoch:              2452580.5000  =  2002/11/02
Mean Anomaly:          302.83022 +/-    56.032
Argument of Peri:      291.96521 +/-    56.668
Long of Asc Node:      233.26426 +/-     0.377
Inclination:            37.91163 +/-    18.851
Eccentricity:         0.46007909 +/-    0.5056
Semi-Major Axis:     34.73008946 +/-   18.6711
Time of Perihelion: 2464452.4300 +/-    6613.2
Perihelion:          18.75150163 +/-   20.2461
Aphelion:            50.70867729 +/-   32.4261
Period (y)              204.6761 +/-    165.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.42037343 +/-    1.5983
Ecliptic Y           26.52234230 +/-    2.2050
Ecliptic Z           -0.23375144 +/-    0.0200
Ecliptic XDOT        -0.00258257 +/-    0.0011
Ecliptic YDOT         0.00012965 +/-    0.0018
Ecliptic ZDOT        -0.00167227 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   32.87309211 +/-    2.0141
Geocenter to KBO     31.89486790 +/-    2.7234
# Hcoef:  8.12

The following table shows the complete astrometric record for 02VY130. 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 (02VY130) followed by the observatory code and reference code for the source of the astrometry.

2002 11  07.31992  03 27 12.83   +18 22 57.7   23.1R 02VY130   695  Cg8319      
2002 11  07.41537  03 27 12.21   +18 22 54.4         02VY130   695  Cg8319      
2002 11  30.36106  03 24 44.14   +18 09 38.7   22.7R 02VY130   568  Cg8319      
2002 11  30.40439  03 24 43.86   +18 09 37.2         02VY130   568  Cg8319      
2002 12  01.38859  03 24 37.71   +18 09 03.6         02VY130   568  Cg8319      

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   0.0003     -9.37     0.02      -1.03    -0.01
  3   0.0631  -2249.88     0.03    -249.69     0.07
  4   0.0632  -2254.12    -0.02    -250.15     0.06
  5   0.0659  -2347.39     0.00    -260.83    -0.14

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.

02VY130    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0