Orbit Fit and Astrometric record for 00CO104

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: 00CO104   
# Created Sun Oct 22 01:37:05 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   15 observations of   15
# Arc:  15.12y
# First observation: 2000/02/06
#  Last observation: 2015/03/23
# Chi-squared of fit:    59.49 DOF:   24 RMS:  0.35
# Min/Max residuals:    -0.31    1.65
# Exact a, adot, b, bdot, g, gdot:
  2.319789E-05  7.488351E-02 -2.734519E-06 -3.596462E-03  5.076995E-02  3.145570E-03
# Covariance matrix:
  4.1769E-13 -1.3289E-13 -9.3403E-15  7.0388E-15  5.2467E-13 -8.6969E-14
 -1.3289E-13  9.7431E-14  6.1311E-15 -4.5662E-15  4.2919E-14  5.3407E-14
 -9.3403E-15  6.1311E-15  1.5978E-13 -1.4201E-14 -5.8112E-15  3.7614E-15
  7.0388E-15 -4.5662E-15 -1.4201E-14  3.3009E-15  4.7692E-15 -2.8163E-15
  5.2467E-13  4.2919E-14 -5.8112E-15  4.7692E-15  3.1141E-12 -8.0605E-14
 -8.6969E-14  5.3407E-14  3.7614E-15 -2.8163E-15 -8.0605E-14  3.3781E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.459819  146.806046    0.164484    0.024633   -0.975031  2451580.824873
# Heliocentric elements and errors
Epoch:              2451580.5000  =  2000/02/06
Mean Anomaly:           11.99452 +/-     1.491
Argument of Peri:      136.81249 +/-     0.000
Long of Asc Node:      353.24814 +/-     0.000
Inclination:             3.07074 +/-     0.000
Eccentricity:         0.14660544 +/-    0.0059
Semi-Major Axis:     24.09537051 +/-    0.0003
Time of Perihelion: 2450141.1071 +/-     178.9
Perihelion:          20.56285822 +/-    0.1423
Aphelion:            27.62788279 +/-    0.1423
Period (y)              118.2793 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -17.19672456 +/-    0.0027
Ecliptic Y           11.45423630 +/-    0.0020
Ecliptic Z            0.50174919 +/-    0.0001
Ecliptic XDOT        -0.00236254 +/-    0.0000
Ecliptic YDOT        -0.00327659 +/-    0.0000
Ecliptic ZDOT        -0.00018946 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   20.66828340 +/-    0.0025
Geocenter to KBO     19.69670639 +/-    0.0034
# Hcoef: 10.09

The following table shows the complete astrometric record for 00CO104. 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 (00CO104) followed by the observatory code and reference code for the source of the astrometry.

2000 02  06.32413  09 58 09.33   +13 57 00.2   22.8R 00CO104   695  Cb1114      
2000 02  06.46317  09 58 08.07   +13 57 06.2         00CO104   695  Cb1114      
2000 02  27.14883  09 55 01.34   +14 12 48.8   23.0R 00CO104   695  Cb1114      
2000 02  27.24084  09 55 00.50   +14 12 52.7         00CO104   695  Cb1114      
2002 02  06.33930  10 30 04.45   +10 31 39.3   22.7R 00CO104   695  Ch5665      
2002 02  06.43463  10 30 03.65   +10 31 43.7         00CO104   695  Ch5665      
2002 02  08.32953  10 29 47.96   +10 33 13.2   22.9R 00CO104   695  Ch5665      
2002 02  08.42655  10 29 47.11   +10 33 17.9         00CO104   695  Ch5665      
2002 03  08.49706  10 25 42.73   +10 55 53.9   22.5R 00CO104   568  Ch5665      
2002 03  08.52618  10 25 42.49   +10 55 54.8         00CO104   568  Ch5665      
2004 02  22.34020  10 58 46.74   +07 10 18.0   23.3R 00CO104   695  Ck0849      
2004 02  22.37546  10 58 46.42   +07 10 19.6         00CO104   695  Ck0849      
2015 03  23.34875  13 29 13.15   -11 05 22.4   23.4R 00CO104   695  C~1Q39      
2015 03  23.41233  13 29 12.66   -11 05 19.6         00CO104   695  C~1Q39      
2015 03  23.47491  13 29 12.22   -11 05 17.1         00CO104   695  C~1Q39      

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     1.65
  2   0.0004      0.00     0.22       0.00    -0.11
  3   0.0570      0.00     0.22       0.00     0.07
  4   0.0573      0.00     0.05       0.00    -0.07
  5   2.0014      0.00    -0.05       0.00    -0.26
  6   2.0017      0.00    -0.05       0.00    -0.31
  7   2.0069      0.00     0.27       0.00    -0.12
  8   2.0071      0.00    -0.08       0.00    -0.02
  9   2.0840      0.00    -0.18       0.00     0.27
 10   2.0841      0.00     0.02       0.00    -0.16
 11   4.0438      0.00     0.36       0.00     0.10
 12   4.0439      0.00     0.11       0.00    -0.07
 13  15.1240      0.00     0.04       0.00    -0.22
 14  15.1241      0.00    -0.12       0.00     0.07
 15  15.1243      0.00     0.34       0.00     0.10

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.

00CO104    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        24.089    24.089    24.089
ecceobj         0.146     0.146     0.146
incobj          3.071     3.071     3.071
qmin           17.591    17.588    17.663
qmax           30.718    30.713    32.316
amean          23.906    23.860    24.424
amin           22.546    22.569    23.747
amax           24.452    24.438    25.650
emean           0.207     0.206     0.225
emin            0.133     0.133     0.133
emax            0.265     0.263     0.277
imean           4.068     4.088     3.887
imin            3.144     3.411     2.743
imax            4.322     4.334     4.506
excite_mean     0.219     0.218     0.236
fracstop        0.006     0.006     0.005
cjmean          2.997     2.998     2.982

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       218.8     220.0     229.0
kozaiamp        110.1     105.8     106.3