Orbit Fit and Astrometric record for 60454

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: 60454     
# Created Wed Dec 13 02:36:27 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   23 observations of   23
# Arc:   6.07y
# First observation: 2000/02/05
#  Last observation: 2006/03/02
# Chi-squared of fit:    73.38 DOF:   40 RMS:  0.32
# Min/Max residuals:    -0.55    1.13
# Exact a, adot, b, bdot, g, gdot:
  1.506942E-05  2.197040E-02  2.498527E-07 -4.150633E-04  2.318330E-02 -1.665114E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.428092  161.791358    0.425324   -0.006892   -0.892692  2451579.916703
# Heliocentric elements and errors
Epoch:              2451580.5000  =  2000/02/06
Mean Anomaly:          277.05277 +/-     0.000
Argument of Peri:      293.55163 +/-     0.000
Long of Asc Node:      320.10304 +/-     0.000
Inclination:             1.16336 +/-     0.000
Eccentricity:         0.08258826 +/-    0.0000
Semi-Major Axis:     44.17149126 +/-    0.0000
Time of Perihelion: 2476286.9807 +/-       0.0
Perihelion:          40.52344461 +/-    0.0000
Aphelion:            47.81953790 +/-    0.0000
Period (y)              293.5765 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.68175733 +/-    0.0000
Ecliptic Y           14.16362539 +/-    0.0000
Ecliptic Z           -0.32225104 +/-    0.0000
Ecliptic XDOT        -0.00062929 +/-    0.0000
Ecliptic YDOT        -0.00251911 +/-    0.0000
Ecliptic ZDOT        -0.00004744 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.02369488 +/-    0.0000
Geocenter to KBO     43.13457251 +/-    0.0000
# Hcoef:  6.24

The following table shows the complete astrometric record for 60454. 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 (60454) followed by the observatory code and reference code for the source of the astrometry.

2000 02  05.41596  10 52 10.01   +06 44 39.4   22.0R 60454     695  Cb1115      
2000 02  05.52102  10 52 09.59   +06 44 42.0         60454     695  Cb1115      
2000 03  01.28777  10 50 24.89   +06 55 12.8   22.5R 60454     695  Cb1115      
2000 03  01.37240  10 50 24.47   +06 55 14.7         60454     695  Cb1115      
2000 04  10.14771  10 47 45.78   +07 11 21.4   24.2R 60454     695  Cb4131      
2000 04  10.23363  10 47 45.47   +07 11 22.5         60454     695  Cb4131      
2001 02  25.48097  10 55 22.53   +06 23 15.3   22.7R 60454     568  Cd0809      
2001 02  25.52039  10 55 22.34   +06 23 16.1         60454     568  Cd0809      
2001 03  24.19064  10 53 27.64   +06 34 57.3   22.5R 60454     695  Cd0809      
2001 03  24.34426  10 53 27.00   +06 35 01.0         60454     695  Cd0809      
2002 02  04.59727  11 01 30.17   +05 43 55.3   22.1R 60454     568  Cf1711      
2002 02  05.54521  11 01 26.62   +05 44 16.9         60454     568  Cf1711      
2002 02  05.60646  11 01 26.38   +05 44 18.4         60454     568  Cf1711      
2002 02  08.36435  11 01 15.79   +05 45 23.1   22.5R 60454     695  Ch1183      
2002 02  15.22902  11 00 48.04   +05 48 12.2   20.5R 60454     304   f1711      
2002 02  15.25108  11 00 47.94   +05 48 12.8         60454     304   f1711      
2002 03  18.29452  10 58 33.67   +06 01 57.3   22.2R 60454     695  Cf4565      
2002 03  20.21598  10 58 25.56   +06 02 47.1         60454     695  Cf4565      
2002 03  20.34215  10 58 25.04   +06 02 50.4         60454     695  Cf4565      
2003 03  30.22932  11 02 27.18   +05 36 14.6   22.3R 60454     695  Ch7880      
2003 03  30.32694  11 02 26.81   +05 36 17.0         60454     695  Ch7880      
2006 03  02.39120  11 18 33.68   +03 50 14.5   21.8R 60454     695  Cq7876      
2006 03  02.49559  11 18 33.22   +03 50 17.2         60454     695  Cq7876      

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    -0.18       0.00     1.13
  2   0.0003      0.00    -0.09       0.00     0.05
  3   0.0681      0.00     0.35       0.00     0.11
  4   0.0683      0.00    -0.27       0.00    -0.25
  5   0.1772      0.00     0.40       0.00     0.54
  6   0.1775      0.00    -0.06       0.00    -0.03
  7   1.0570      0.00     0.38       0.00     0.39
  8   1.0571      0.00     0.16       0.00     0.14
  9   1.1301      0.00     0.02       0.00     0.04
 10   1.1305      0.00    -0.12       0.00    -0.06
 11   1.9991      0.00    -0.55       0.00    -0.41
 12   2.0017      0.00    -0.16       0.00    -0.51
 13   2.0019      0.00    -0.20       0.00    -0.41
 14   2.0094      0.00     0.45       0.00    -0.26
 15   2.0282      0.00     0.03       0.00    -0.13
 16   2.0283      0.00    -0.07       0.00    -0.09
 17   2.1133      0.00     0.22       0.00     0.01
 18   2.1185      0.00     0.04       0.00    -0.26
 19   2.1189      0.00     0.31       0.00    -0.23
 20   3.1453      0.00    -0.13       0.00     0.52
 21   3.1455      0.00     0.16       0.00     0.53
 22   6.0697      0.00     0.08       0.00     0.07
 23   6.0700      0.00     0.08       0.00    -0.08

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.

60454    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.160    44.159    44.160
ecceobj         0.083     0.083     0.083
incobj          1.164     1.164     1.164
qmin           39.950    39.970    39.982
qmax           49.005    49.076    49.010
amean          44.380    44.380    44.380
amin           44.035    44.032    44.019
amax           44.757    44.759    44.754
emean           0.080     0.080     0.080
emin            0.064     0.064     0.064
emax            0.096     0.096     0.096
imean           2.814     2.814     2.814
imin            2.095     2.095     2.095
imax            3.490     3.486     3.492
excite_mean     0.094     0.094     0.094
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     3.095

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       176.7     176.7     176.5
kozaiamp        179.9     180.0     180.0