Orbit Fit and Astrometric record for 385362

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: 385362    
# Created Mon Dec 18 02:36:43 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   33 observations of   33
# Arc:  11.17y
# First observation: 2002/08/05
#  Last observation: 2013/10/07
# Chi-squared of fit:    51.31 DOF:   60 RMS:  0.22
# Min/Max residuals:    -0.73    0.38
# Exact a, adot, b, bdot, g, gdot:
  1.263916E-05  1.686101E-02  2.180979E-06  1.089622E-03  2.017606E-02 -1.794574E-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
   -0.134022  -32.964983    0.253784   -0.002372   -0.986359  2452491.923773
# Heliocentric elements and errors
Epoch:              2452492.5000  =  2002/08/06
Mean Anomaly:          235.82762 +/-     0.000
Argument of Peri:      134.76650 +/-     0.000
Long of Asc Node:      328.77389 +/-     0.000
Inclination:             3.71680 +/-     0.000
Eccentricity:         0.14816095 +/-    0.0000
Semi-Major Axis:     46.10094202 +/-    0.0000
Time of Perihelion: 2491927.8423 +/-       0.0
Perihelion:          39.27058282 +/-    0.0000
Aphelion:            52.93130122 +/-    0.0000
Period (y)              313.0206 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.27354638 +/-    0.0000
Ecliptic Y          -27.71267241 +/-    0.0000
Ecliptic Z           -0.11579829 +/-    0.0000
Ecliptic XDOT         0.00103316 +/-    0.0000
Ecliptic YDOT         0.00204938 +/-    0.0000
Ecliptic ZDOT         0.00014864 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   50.54765915 +/-    0.0000
Geocenter to KBO     49.56379088 +/-    0.0000
# Hcoef:  6.58

The following table shows the complete astrometric record for 385362. 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 (385362) followed by the observatory code and reference code for the source of the astrometry.

2002 08  05.42303  21 57 10.40   -12 37 33.7   23.1R 385362    568  Cp2009      
2002 08  05.48562  21 57 10.15   -12 37 34.8   22.9R 385362    568  Cp2009      
2002 08  05.54820  21 57 09.90   -12 37 36.1   22.9R 385362    568  Cp2009      
2002 09  04.07790  21 55 14.68   -12 47 28.5   23.3R 385362    950  Cp2009      
2002 09  04.10861  21 55 14.56   -12 47 29.3         385362    950  Cp2009      
2002 09  04.13929  21 55 14.43   -12 47 29.8         385362    950  Cp2009      
2002 09  30.24743  21 53 46.09   -12 54 56.8   23.4R 385362    568  Cp2009      
2002 09  30.30449  21 53 45.93   -12 54 57.6   23.0R 385362    568  Cp2009      
2002 09  30.36635  21 53 45.75   -12 54 58.5   23.6R 385362    568  Cp2009      
2002 11  28.22220  21 52 56.55   -12 58 31.0   23.0R 385362    568  Cp2009      
2002 11  29.22625  21 52 57.98   -12 58 22.5   23.0R 385362    568  Cp2009      
2002 11  30.22604  21 52 59.51   -12 58 13.8   22.9R 385362    568  Cp2009      
2003 06  23.50794  22 02 55.83   -12 03 01.7   23.4i 385362    568  Cp2009      
2003 06  23.55936  22 02 55.69   -12 03 02.1   23.4i 385362    568  Cp2009      
2003 06  23.60803  22 02 55.62   -12 03 02.5   23.3i 385362    568  Cp2009      
2003 07  28.31947  22 01 18.51   -12 11 27.2         385362    809  Cp2009      
2003 07  28.38771  22 01 18.30   -12 11 28.8         385362    809  Cp2009      
2003 07  29.17854  22 01 15.46   -12 11 43.5         385362    809  Cp2009      
2003 07  29.27063  22 01 15.13   -12 11 45.0         385362    809  Cp2009      
2003 07  29.35386  22 01 14.85   -12 11 46.7         385362    809  Cp2009      
2003 08  31.32615  21 59 07.63   -12 22 50.2   23.4g 385362    568  Cp2009      
2003 08  31.36009  21 59 07.49   -12 22 50.9   23.3g 385362    568  Cp2009      
2003 08  31.38702  21 59 07.38   -12 22 51.4   23.9g 385362    568  Cp2009      
2003 09  04.43777  21 58 51.78   -12 24 11.8         385362    568  Cp2009      
2004 08  12.39657  22 03 56.77   -11 52 57.7   23.8R 385362    568  Cp2009      
2004 08  12.42677  22 03 56.65   -11 52 58.2   23.8R 385362    568  Cp2009      
2004 08  12.46130  22 03 56.52   -11 52 59.1   23.4R 385362    568  Cp2009      
2004 08  14.41831  22 03 48.88   -11 53 39.4   23.4r 385362    568  Cp2009      
2004 12  12.24686  22 00 28.70   -12 10 25.9   22.8R 385362    568  C~0yM4      
2004 12  12.25245  22 00 28.71   -12 10 25.8   22.7R 385362    568  C~0yM4      
2004 12  12.25805  22 00 28.72   -12 10 25.7   22.9R 385362    568  C~0yM4      
2013 10  06.27245  22 33 33.87   -08 27 07.4   23.2R 385362    695  C~0zdL      
2013 10  07.17949  22 33 31.16   -08 27 24.1         385362    695  C~0zdL      

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    -0.13       0.00    -0.73
  2   0.0002      0.00     0.14       0.00    -0.07
  3   0.0003      0.00     0.03       0.00    -0.14
  4   0.0812      0.00     0.12       0.00    -0.08
  5   0.0813      0.00     0.10       0.00    -0.29
  6   0.0814      0.00    -0.08       0.00    -0.20
  7   0.1528      0.00     0.08       0.00     0.24
  8   0.1530      0.00     0.16       0.00     0.25
  9   0.1532      0.00     0.15       0.00     0.22
 10   0.3143      0.00    -0.14       0.00     0.08
 11   0.3171      0.00    -0.38       0.00     0.19
 12   0.3198      0.00    -0.19       0.00     0.14
 13   0.8818      0.00     0.13       0.00    -0.13
 14   0.8820      0.00    -0.50       0.00    -0.04
 15   0.8821      0.00    -0.16       0.00     0.01
 16   0.9771      0.00    -0.30       0.00     0.20
 17   0.9773      0.00     0.26       0.00    -0.14
 18   0.9795      0.00    -0.09       0.00    -0.05
 19   0.9797      0.00     0.01       0.00     0.19
 20   0.9800      0.00     0.38       0.00     0.04
 21   1.0702      0.00     0.37       0.00    -0.13
 22   1.0703      0.00     0.28       0.00    -0.15
 23   1.0704      0.00     0.22       0.00    -0.10
 24   1.0815      0.00     0.15       0.00     0.33
 25   2.0205      0.00     0.05       0.00     0.24
 26   2.0205      0.00     0.04       0.00     0.36
 27   2.0206      0.00     0.15       0.00     0.17
 28   2.0260      0.00     0.03       0.00     0.15
 29   2.3541      0.00    -0.03       0.00    -0.26
 30   2.3541      0.00    -0.07       0.00    -0.24
 31   2.3541      0.00    -0.12       0.00    -0.21
 32  11.1700      0.00    -0.09       0.00     0.38
 33  11.1725      0.00     0.18       0.00    -0.37

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.

385362    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.432    46.432    46.432
ecceobj         0.144     0.144     0.144
incobj          3.698     3.698     3.698
qmin           38.689    38.687    38.692
qmax           54.267    54.273    54.267
amean          46.319    46.318    46.319
amin           45.931    45.932    45.919
amax           46.768    46.774    46.768
emean           0.148     0.148     0.148
emin            0.135     0.135     0.135
emax            0.161     0.161     0.161
imean           4.774     4.774     4.774
imin            4.177     4.177     4.178
imax            5.258     5.258     5.258
excite_mean     0.170     0.170     0.170
fracstop        1.000     1.000     1.000
cjmean          3.094     3.094     3.094

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       180.4     180.3     180.5
kozaiamp        180.0     180.0     180.0