Orbit Fit and Astrometric record for 455209

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: 455209    
# Created Sun Oct 22 01:36:48 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   20 observations of   20
# Arc:  14.05y
# First observation: 2001/05/24
#  Last observation: 2015/06/12
# Chi-squared of fit:    34.26 DOF:   34 RMS:  0.23
# Min/Max residuals:    -0.43    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.698460E-05  2.402302E-02  1.465136E-06  6.035496E-04  2.415819E-02  1.222897E-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
    0.953020 -143.004017   -0.445122    0.015131   -0.916582  2452053.547283
# Heliocentric elements and errors
Epoch:              2452054.5000  =  2001/05/25
Mean Anomaly:           43.85774 +/-     0.000
Argument of Peri:      341.76345 +/-     0.000
Long of Asc Node:      184.62722 +/-     0.000
Inclination:             1.71322 +/-     0.000
Eccentricity:         0.08583241 +/-    0.0000
Semi-Major Axis:     44.91214176 +/-    0.0000
Time of Perihelion: 2438661.1918 +/-       0.0
Perihelion:          41.05722459 +/-    0.0000
Aphelion:            48.76705892 +/-    0.0000
Period (y)              300.9912 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -33.51618829 +/-    0.0000
Ecliptic Y          -25.80801415 +/-    0.0000
Ecliptic Z            0.68853508 +/-    0.0000
Ecliptic XDOT         0.00152014 +/-    0.0000
Ecliptic YDOT        -0.00225485 +/-    0.0000
Ecliptic ZDOT         0.00007089 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.30672613 +/-    0.0000
Geocenter to KBO     41.39384329 +/-    0.0000
# Hcoef:  6.91

The following table shows the complete astrometric record for 455209. 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 (455209) followed by the observatory code and reference code for the source of the astrometry.

2001 05  24.04654  14 19 53.99   -12 56 54.1   22.8R 455209    807  Cd1817      
2001 05  24.15511  14 19 53.55   -12 56 51.8         455209    807  Cd1817      
2001 06  09.99814  14 18 52.00   -12 51 48.4   23.7R 455209    304  Cd1817      
2001 06  10.07124  14 18 51.76   -12 51 47.2         455209    304  Cd1817      
2001 08  20.98264  14 18 31.15   -12 51 12.1   22.2R 455209    807  Ch1324      
2001 08  21.04365  14 18 31.30   -12 51 13.0         455209    807  Ch1324      
2002 04  06.22130  14 28 52.41   -13 39 28.6   22.0R 455209    807  Cf4617      
2002 04  06.36110  14 28 51.81   -13 39 25.4         455209    807  Cf4617      
2002 04  07.26961  14 28 48.01   -13 39 05.7         455209    807  Cf4617      
2004 04  22.40696  14 38 27.16   -14 20 49.2   23.2R 455209    568  Ck9562      
2004 04  22.49551  14 38 26.76   -14 20 47.4         455209    568  Ck9562      
2004 06  09.29726  14 34 59.55   -14 04 32.2   23.4R 455209    568  Ck8985      
2004 06  09.36430  14 34 59.30   -14 04 31.1         455209    568  Ck8985      
2015 05  20.19139  15 35 53.42   -17 54 49.9         455209    W84  C~1TiY      
2015 05  21.22955  15 35 48.48   -17 54 32.8   23.6V 455209    W84  C~1TiY      
2015 05  22.27165  15 35 43.50   -17 54 15.7         455209    W84  C~1TiY      
2015 05  24.18398  15 35 34.45   -17 53 44.2         455209    W84  C~1TiY      
2015 06  12.21278  15 34 08.43   -17 48 52.7   22.5R 455209    695  C~1hTQ      
2015 06  12.26067  15 34 08.22   -17 48 52.0         455209    695  C~1hTQ      
2015 06  12.31376  15 34 08.01   -17 48 51.4         455209    695  C~1hTQ      

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     0.59
  2   0.0003      0.00    -0.11       0.00    -0.04
  3   0.0464      0.00    -0.07       0.00     0.19
  4   0.0466      0.00    -0.10       0.00     0.27
  5   0.2435      0.00     0.55       0.00     0.17
  6   0.2437      0.00     0.26       0.00     0.19
  7   0.8684      0.00     0.12       0.00    -0.27
  8   0.8688      0.00     0.06       0.00    -0.06
  9   0.8712      0.00     0.33       0.00     0.15
 10   2.9141      0.00    -0.08       0.00    -0.27
 11   2.9143      0.00     0.13       0.00    -0.43
 12   3.0452      0.00    -0.09       0.00    -0.05
 13   3.0454      0.00    -0.26       0.00    -0.02
 14  13.9881      0.00     0.03       0.00     0.19
 15  13.9909      0.00     0.09       0.00     0.15
 16  13.9938      0.00    -0.27       0.00     0.09
 17  13.9990      0.00    -0.16       0.00     0.28
 18  14.0511      0.00     0.20       0.00    -0.17
 19  14.0512      0.00     0.13       0.00    -0.15
 20  14.0514      0.00     0.40       0.00    -0.30

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.

455209    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.814    44.814    44.814
ecceobj         0.083     0.083     0.083
incobj          1.714     1.714     1.714
qmin           40.488    40.496    40.497
qmax           50.067    50.050    50.086
amean          45.167    45.166    45.163
amin           44.790    44.795    44.802
amax           45.547    45.546    45.554
emean           0.086     0.086     0.086
emin            0.072     0.072     0.072
emax            0.099     0.099     0.100
imean           2.469     2.469     2.469
imin            1.891     1.890     1.889
imax            2.945     2.945     2.945
excite_mean     0.096     0.096     0.096
fracstop        1.000     1.000     1.000
cjmean          3.104     3.104     3.104

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       172.4     172.3     172.3
kozaiamp        179.9     180.0     179.9