Orbit Fit and Astrometric record for 183963

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: 183963    
# Created Tue Oct 24 01:36:38 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   23 observations of   23
# Arc:   9.95y
# First observation: 2003/04/01
#  Last observation: 2013/03/14
# Chi-squared of fit:    80.82 DOF:   40 RMS:  0.33
# Min/Max residuals:    -0.71    1.24
# Exact a, adot, b, bdot, g, gdot:
  1.579176E-05  2.374532E-02  8.045975E-07  4.717703E-04  2.414841E-02 -2.418353E-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
    2.225664  165.568714   -0.433331    0.034913   -0.898489  2452730.716898
# Heliocentric elements and errors
Epoch:              2452730.5000  =  2003/04/01
Mean Anomaly:          305.35994 +/-     0.000
Argument of Peri:      128.04875 +/-     0.000
Long of Asc Node:      103.11237 +/-     0.000
Inclination:             2.44347 +/-     0.000
Eccentricity:         0.10307595 +/-    0.0000
Semi-Major Axis:     44.63258075 +/-    0.0000
Time of Perihelion: 2469260.9666 +/-       0.0
Perihelion:          40.03203514 +/-    0.0000
Aphelion:            49.23312636 +/-    0.0000
Period (y)              298.1853 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.05464636 +/-    0.0000
Ecliptic Y           10.12069364 +/-    0.0000
Ecliptic Z            1.60825065 +/-    0.0000
Ecliptic XDOT        -0.00040995 +/-    0.0000
Ecliptic YDOT        -0.00268077 +/-    0.0000
Ecliptic ZDOT         0.00004299 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.31434481 +/-    0.0000
Geocenter to KBO     41.41070591 +/-    0.0000
# Hcoef:  6.98

The following table shows the complete astrometric record for 183963. 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 (183963) followed by the observatory code and reference code for the source of the astrometry.

2003 04  01.216155 11 10 20.38   +07 44 26.4   22.7V 183963    645  C~2KGJ      
2003 04  01.216984 11 10 20.38   +07 44 26.4   22.2V 183963    645  C~2KGJ      
2003 04  01.219472 11 10 20.37   +07 44 26.4   23.6V 183963    645  C~2KGJ      
2004 02  26.35815  11 17 57.92   +06 58 09.7   22.9R 183963    695  Ck0899      
2004 02  26.43653  11 17 57.56   +06 58 12.1         183963    695  Ck0899      
2004 02  27.31905  11 17 53.69   +06 58 37.4         183963    695  Ck0899      
2004 03  15.21148  11 16 37.86   +07 06 43.7   22.7R 183963    695  Ck4349      
2004 03  15.29066  11 16 37.50   +07 06 46.1         183963    695  Ck4349      
2005 04  10.20358  11 19 58.38   +06 46 49.2   23.5R 183963    695  Cn6536      
2005 04  10.32526  11 19 57.91   +06 46 51.5         183963    695  Cn6536      
2005 06  06.99845  11 18 16.51   +06 54 57.4   23.4R 183963    304  Cn6536      
2005 06  07.99384  11 18 17.12   +06 54 50.2         183963    304  Cn6536      
2006 04  26.04846  11 24 13.72   +06 20 48.1   22.8R 183963    807  Cr3590      
2006 04  26.13262  11 24 13.49   +06 20 49.6         183963    807  Cr3590      
2006 04  27.07190  11 24 10.77   +06 21 04.2         183963    807  Cr3590      
2006 06  21.96403  11 23 34.62   +06 22 01.9   23.4R 183963    304  Cr4844      
2006 06  21.98458  11 23 34.66   +06 22 01.4         183963    304  Cr4844      
2008 03  03.28811  11 38 08.64   +04 55 11.3         183963    695  Cy7593      
2008 03  03.35342  11 38 08.31   +04 55 13.5         183963    695  Cy7593      
2008 03  04.39062  11 38 03.75   +04 55 43.8         183963    695  Cy7593      
2013 03  14.27946  12 03 20.60   +02 17 33.5   23.0R 183963    695  C~0upO      
2013 03  14.38911  12 03 20.10   +02 17 36.5         183963    695  C~0upO      
2013 03  14.44946  12 03 19.83   +02 17 38.4         183963    695  C~0upO      

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    -0.19       0.00     1.24
  2   0.0000      0.00     0.01       0.00    -0.11
  3   0.0000      0.00     0.01       0.00    -0.17
  4   0.9066      0.00    -0.06       0.00     0.17
  5   0.9068      0.00    -0.19       0.00     0.31
  6   0.9092      0.00     0.05       0.00     0.08
  7   0.9555      0.00     0.03       0.00    -0.02
  8   0.9557      0.00     0.03       0.00     0.15
  9   2.0260      0.00     0.78       0.00     0.28
 10   2.0263      0.00     0.67       0.00    -0.10
 11   2.1842      0.00     0.09       0.00    -0.03
 12   2.1869      0.00     0.00       0.00    -0.09
 13   3.0687      0.00    -0.14       0.00    -0.01
 14   3.0689      0.00     0.19       0.00     0.12
 15   3.0715      0.00    -0.09       0.00    -0.27
 16   3.2245      0.00    -0.71       0.00    -0.39
 17   3.2246      0.00    -0.62       0.00    -0.59
 18   4.9229      0.00     0.39       0.00     0.08
 19   4.9230      0.00    -0.16       0.00     0.36
 20   4.9259      0.00     0.30       0.00     0.11
 21   9.9523      0.00     0.02       0.00     0.11
 22   9.9526      0.00     0.02       0.00    -0.16
 23   9.9527      0.00     0.09       0.00    -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.

183963    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.191    44.191    44.191
ecceobj         0.098     0.098     0.098
incobj          2.444     2.444     2.444
qmin           39.364    39.345    39.373
qmax           49.793    49.784    49.768
amean          44.431    44.431    44.431
amin           44.071    44.073    44.074
amax           44.815    44.816    44.818
emean           0.094     0.094     0.094
emin            0.078     0.078     0.078
emax            0.111     0.111     0.111
imean           0.864     0.864     0.864
imin            0.000     0.000     0.000
imax            1.477     1.477     1.477
excite_mean     0.096     0.096     0.096
fracstop        1.000     1.000     1.000
cjmean          3.096     3.096     3.096

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       184.9     185.0     184.8
kozaiamp        180.0     180.0     180.0