Orbit Fit and Astrometric record for 53311

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: 53311     
# Created Thu Sep 18 01:36:33 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   34 observations of   34
# Arc:   4.13y
# First observation: 1999/04/12
#  Last observation: 2003/05/31
# Chi-squared of fit:    89.80 DOF:   62 RMS:  0.29
# Min/Max residuals:    -0.63    0.98
# Exact a, adot, b, bdot, g, gdot:
  1.442653E-05  2.217345E-02  1.997778E-06 -1.261594E-04  2.334023E-02 -1.351060E-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
    0.171966 -155.771328    0.046716    0.002834   -1.009007  2451280.554903
# Heliocentric elements and errors
Epoch:              2451280.5000  =  1999/04/12
Mean Anomaly:          272.94523 +/-     0.000
Argument of Peri:      246.99395 +/-     0.000
Long of Asc Node:       51.40221 +/-     0.000
Inclination:             0.36741 +/-     0.000
Eccentricity:         0.06256420 +/-    0.0000
Semi-Major Axis:     43.81524251 +/-    0.0000
Time of Perihelion: 2476897.3853 +/-       0.0
Perihelion:          41.07397691 +/-    0.0000
Aphelion:            46.55650812 +/-    0.0000
Period (y)              290.0321 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.00122969 +/-    0.0000
Ecliptic Y          -17.95384645 +/-    0.0000
Ecliptic Z            0.12865109 +/-    0.0000
Ecliptic XDOT         0.00120948 +/-    0.0000
Ecliptic YDOT        -0.00229807 +/-    0.0000
Ecliptic ZDOT        -0.00001526 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.84585551 +/-    0.0000
Geocenter to KBO     42.84454628 +/-    0.0000
# Hcoef:  6.57

The following table shows the complete astrometric record for 53311. 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 (53311) followed by the observatory code and reference code for the source of the astrometry.

1999 04  12.05416  13 29 59.77   -09 14 06.2         53311     809  Ca5907      
1999 04  12.06642  13 29 59.72   -09 14 05.7         53311     809  Ca5907      
1999 04  12.07867  13 29 59.66   -09 14 05.2         53311     809  Ca5907      
1999 04  13.06350  13 29 55.33   -09 13 40.2   24.5V 53311     809  Ca5907      
1999 04  13.07607  13 29 55.27   -09 13 39.7         53311     809  Ca5907      
1999 04  13.08839  13 29 55.20   -09 13 39.5         53311     809  Ca5907      
1999 04  18.20550  13 29 32.70   -09 11 28.1   22.4R 53311     695  Ca4930      
1999 04  18.27939  13 29 32.38   -09 11 26.0         53311     695  Ca4930      
1999 04  18.38513  13 29 31.86   -09 11 23.4         53311     695  Ca4930      
1999 05  05.96981  13 28 17.03   -09 04 06.6         53311     950  Ca4930      
1999 05  06.03200  13 28 16.77   -09 04 04.9         53311     950  Ca4930      
1999 05  21.27228  13 27 19.81   -08 58 32.9   22.8R 53311     697  Cb0831      
1999 05  21.32431  13 27 19.64   -08 58 31.8   22.9R 53311     697  Cb0831      
2000 03  29.54345  13 35 41.39   -09 47 38.5   22.8R 53311     568  Cb1943      
2000 03  29.57254  13 35 41.28   -09 47 37.9   22.6R 53311     568  Cb1943      
2000 03  29.59906  13 35 41.16   -09 47 37.1   22.9R 53311     568  Cb1943      
2000 03  31.56435  13 35 32.86   -09 46 49.3   22.7R 53311     568  Cb1943      
2000 03  31.58795  13 35 32.75   -09 46 48.8   23.0R 53311     568  Cb1943      
2000 04  02.58228  13 35 24.24   -09 45 59.4   22.9R 53311     568  Cb1943      
2000 04  02.61047  13 35 24.11   -09 45 58.6   22.9R 53311     568  Cb1943      
2001 03  24.17225  13 40 52.49   -10 17 48.7   23.0  53311     304  Ce8605      
2001 03  24.20654  13 40 52.34   -10 17 48.0         53311     304  Ce8605      
2001 03  24.40679  13 40 51.56   -10 17 44.4   22.6R 53311     695  Cc7487      
2001 03  24.48279  13 40 51.25   -10 17 42.9         53311     695  Cc7487      
2002 04  07.16033  13 44 45.01   -10 40 15.2   22.0R 53311     807  Cf4290      
2002 04  07.22458  13 44 44.71   -10 40 13.8         53311     807  Cf4290      
2002 04  08.20355  13 44 40.45   -10 39 49.3         53311     807  Cf4290      
2002 08  09.00130  13 40 37.52   -10 17 20.0   22.2R 53311     807  Ch1150      
2002 08  10.00224  13 40 40.02   -10 17 34.4   22.5R 53311     807  Ch3078      
2002 08  11.00470  13 40 42.60   -10 17 48.8         53311     807  Ch1150      
2002 08  12.00263  13 40 45.26   -10 18 04.4         53311     807  Ch3078      
2003 05  30.01916  13 45 59.89   -10 47 51.7   21.7R 53311     807   i2202      
2003 05  30.11167  13 45 59.57   -10 47 49.9         53311     807   i2202      
2003 05  31.05923  13 45 56.55   -10 47 33.1         53311     807   i2202      

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    -0.14       0.00     0.73
  2   0.0000      0.00     0.07       0.00    -0.28
  3   0.0001      0.00    -0.01       0.00    -0.09
  4   0.0028      0.00     0.06       0.00    -0.39
  5   0.0028      0.00     0.00       0.00    -0.21
  6   0.0028      0.00    -0.23       0.00    -0.33
  7   0.0168      0.00     0.27       0.00    -0.23
  8   0.0170      0.00     0.42       0.00    -0.02
  9   0.0173      0.00    -0.30       0.00    -0.13
 10   0.0655      0.00    -0.08       0.00    -0.13
 11   0.0656      0.00    -0.14       0.00     0.11
 12   0.1074      0.00     0.11       0.00     0.11
 13   0.1075      0.00     0.25       0.00     0.18
 14   0.9651      0.00    -0.03       0.00     0.12
 15   0.9651      0.00     0.18       0.00     0.01
 16   0.9652      0.00     0.07       0.00     0.17
 17   0.9706      0.00     0.07       0.00     0.08
 18   0.9707      0.00    -0.05       0.00     0.00
 19   0.9761      0.00     0.09       0.00     0.25
 20   0.9762      0.00    -0.02       0.00     0.35
 21   1.9497      0.00     0.01       0.00     0.98
 22   1.9498      0.00    -0.16       0.00     0.90
 23   1.9503      0.00     0.24       0.00     0.15
 24   1.9505      0.00     0.23       0.00    -0.09
 25   2.9873      0.00     0.46       0.00    -0.46
 26   2.9875      0.00     0.23       0.00    -0.63
 27   2.9901      0.00     0.33       0.00    -0.14
 28   3.3263      0.00     0.18       0.00    -0.38
 29   3.3291      0.00     0.10       0.00    -0.24
 30   3.3318      0.00    -0.03       0.00     0.38
 31   3.3346      0.00     0.05       0.00     0.17
 32   4.1313      0.00    -0.16       0.00    -0.21
 33   4.1316      0.00    -0.38       0.00    -0.06
 34   4.1342      0.00    -0.34       0.00    -0.05

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.

53311    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.808    43.808    43.808
ecceobj         0.061     0.061     0.061
incobj          0.366     0.366     0.366
qmin           40.755    40.768    40.762
qmax           47.710    47.713    47.711
amean          44.133    44.133    44.133
amin           43.783    43.783    43.785
amax           44.492    44.489    44.493
emean           0.058     0.058     0.058
emin            0.041     0.041     0.041
emax            0.073     0.073     0.073
imean           1.629     1.629     1.629
imin            0.912     0.912     0.912
imax            2.184     2.184     2.183
excite_mean     0.064     0.064     0.064
fracstop        1.000     1.000     1.000
cjmean          3.098     3.098     3.098

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       177.5     177.5     177.7
kozaiamp        179.9     180.0     180.0