Orbit Fit and Astrometric record for 86047

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: 86047     
# Created Tue Apr 22 01:37:32 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   37 observations of   37
# Arc:   7.04y
# First observation: 1999/07/18
#  Last observation: 2006/08/02
# Chi-squared of fit:   160.33 DOF:   68 RMS:  0.37
# Min/Max residuals:    -0.67    0.89
# Exact a, adot, b, bdot, g, gdot:
  1.544685E-05  2.540001E-02  6.807774E-06  1.143331E-02  2.640881E-02  3.691769E-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
    0.391221  -57.123021    0.139822    0.006619   -1.004620  2451377.935973
# Heliocentric elements and errors
Epoch:              2451378.5000  =  1999/07/19
Mean Anomaly:           40.08289 +/-     0.000
Argument of Peri:      306.12237 +/-     0.000
Long of Asc Node:      301.83443 +/-     0.000
Inclination:            24.21671 +/-     0.000
Eccentricity:         0.16940974 +/-    0.0000
Semi-Major Axis:     43.93029949 +/-    0.0000
Time of Perihelion: 2439537.1515 +/-       0.0
Perihelion:          36.48807910 +/-    0.0000
Aphelion:            51.37251989 +/-    0.0000
Period (y)              291.1752 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           20.99097516 +/-    0.0000
Ecliptic Y          -32.71856495 +/-    0.0000
Ecliptic Z            0.25883256 +/-    0.0000
Ecliptic XDOT         0.00241146 +/-    0.0000
Ecliptic YDOT         0.00112332 +/-    0.0000
Ecliptic ZDOT         0.00118794 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.87398033 +/-    0.0000
Geocenter to KBO     37.86610483 +/-    0.0000
# Hcoef:  6.74

The following table shows the complete astrometric record for 86047. 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 (86047) followed by the observatory code and reference code for the source of the astrometry.

1999 07  18.43523  20 20 16.69   -19 08 06.2   22.3R 86047     568  Ca5927      
1999 07  18.46258  20 20 16.54   -19 08 06.5         86047     568  Ca5927      
1999 07  18.48928  20 20 16.40   -19 08 06.9         86047     568  Ca5927      
1999 08  07.15658  20 18 29.82   -19 11 49.7         86047     705  Ca5927      
1999 08  07.17615  20 18 29.72   -19 11 49.9         86047     705  Ca5927      
1999 08  08.22280  20 18 24.15   -19 12 00.7         86047     675  Ca5927      
1999 08  08.26336  20 18 23.90   -19 12 01.1         86047     675  Ca5927      
1999 09  08.27272  20 16 00.90   -19 16 34.5         86047     568  Ca7327      
1999 09  08.29737  20 16 00.81   -19 16 34.7         86047     568  Ca7327      
2000 05  31.51662  20 28 58.29   -18 03 48.1   22.6R 86047     568  Cb6489      
2000 05  31.58291  20 28 58.10   -18 03 48.3   22.7R 86047     568  Cb6489      
2000 06  26.02928  20 27 23.99   -18 06 05.4         86047     950  Cb6489      
2000 06  26.04596  20 27 23.93   -18 06 05.6         86047     950  Cb6489      
2000 06  27.04565  20 27 19.35   -18 06 14.4         86047     950  Cb7609      
2000 06  28.04620  20 27 14.72   -18 06 23.2         86047     950  Cb6489      
2000 06  28.08237  20 27 14.56   -18 06 23.4         86047     950  Cb6489      
2000 08  05.31385  20 23 55.37   -18 13 31.0   22.4R 86047     568  Cb7609      
2000 08  05.35779  20 23 55.12   -18 13 31.5   22.2R 86047     568  Cb7609      
2000 08  05.40615  20 23 54.86   -18 13 32.4         86047     568  Cb7609      
2000 08  06.30446  20 23 50.12   -18 13 42.7   22.0R 86047     568  Cb7609      
2000 08  06.35054  20 23 49.87   -18 13 43.4   22.2R 86047     568  Cb7609      
2000 08  06.39178  20 23 49.64   -18 13 43.9   22.1R 86047     568  Cb7609      
2000 09  23.23564  20 20 31.24   -18 20 31.0         86047     568  Cb9102      
2000 09  23.29210  20 20 31.10   -18 20 31.1   22.2R 86047     568  Cb9102      
2000 09  23.34027  20 20 30.99   -18 20 31.2   22.5R 86047     568  Cb9102      
2000 09  24.22994  20 20 28.88   -18 20 33.7   22.5R 86047     568  Cc0831      
2000 09  24.27922  20 20 28.77   -18 20 33.9   22.5R 86047     568  Cc0831      
2000 09  24.33542  20 20 28.64   -18 20 34.0   22.6R 86047     568  Cc0831      
2001 08  19.92908  20 27 55.32   -17 18 14.6         86047     493  Cd7487      
2001 08  19.96368  20 27 55.14   -17 18 15.1         86047     493  Cd7487      
2004 08  15.37344  20 43 24.24   -14 22 54.3   22.3R 86047     568  Cl1754      
2004 08  15.43858  20 43 23.91   -14 22 55.2   22.3R 86047     568  Cl1754      
2004 08  16.34715  20 43 19.37   -14 23 08.6   22.3R 86047     568  Cl1754      
2006 08  02.42975  20 54 14.37   -12 23 15.3   22.0R 86047     250  S~06GV      
2006 08  02.43415  20 54 14.34   -12 23 15.4         86047     250  S~06GV      
2006 08  02.43855  20 54 14.32   -12 23 15.5         86047     250  S~06GV      
2006 08  02.44295  20 54 14.30   -12 23 15.6         86047     250  S~06GV      

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    -0.21       0.00    -0.62
  2   0.0001      0.00     0.02       0.00     0.01
  3   0.0001      0.00     0.12       0.00    -0.09
  4   0.0540      0.00     0.19       0.00    -0.12
  5   0.0540      0.00     0.28       0.00    -0.10
  6   0.0569      0.00     0.05       0.00     0.58
  7   0.0570      0.00    -0.43       0.00     0.63
  8   0.1419      0.00     0.26       0.00    -0.31
  9   0.1420      0.00     0.30       0.00    -0.36
 10   0.8709      0.00     0.41       0.00     0.14
 11   0.8710      0.00     0.34       0.00     0.06
 12   0.9407      0.00    -0.16       0.00    -0.07
 13   0.9408      0.00     0.10       0.00    -0.12
 14   0.9435      0.00    -0.01       0.00    -0.30
 15   0.9462      0.00     0.00       0.00    -0.27
 16   0.9463      0.00     0.17       0.00    -0.14
 17   1.0510      0.00    -0.03       0.00    -0.21
 18   1.0511      0.00    -0.21       0.00    -0.17
 19   1.0513      0.00    -0.19       0.00    -0.49
 20   1.0537      0.00     0.09       0.00    -0.11
 21   1.0538      0.00     0.06       0.00    -0.26
 22   1.0540      0.00    -0.06       0.00    -0.26
 23   1.1849      0.00     0.09       0.00    -0.15
 24   1.1851      0.00     0.12       0.00    -0.07
 25   1.1852      0.00     0.27       0.00    -0.02
 26   1.1877      0.00     0.03       0.00     0.18
 27   1.1878      0.00     0.16       0.00     0.13
 28   1.1880      0.00     0.24       0.00     0.19
 29   2.0903      0.00     0.04       0.00     0.66
 30   2.0904      0.00    -0.09       0.00     0.56
 31   5.0785      0.00    -0.67       0.00     0.82
 32   5.0787      0.00    -0.63       0.00     0.88
 33   5.0812      0.00    -0.63       0.00     0.89
 34   7.0417      0.00     0.62       0.00    -0.47
 35   7.0417      0.00     0.51       0.00    -0.50
 36   7.0418      0.00     0.54       0.00    -0.54
 37   7.0418      0.00     0.58       0.00    -0.57

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.

86047    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.853    43.854    43.853
ecceobj         0.168     0.168     0.168
incobj         24.236    24.236    24.236
qmin           35.668    35.638    35.653
qmax           52.588    52.575    52.544
amean          43.921    43.920    43.920
amin           43.551    43.551    43.547
amax           44.351    44.351    44.335
emean           0.167     0.167     0.167
emin            0.149     0.149     0.149
emax            0.186     0.186     0.186
imean          25.816    25.816    25.816
imin           25.409    25.408    25.414
imax           26.280    26.289    26.285
excite_mean     0.466     0.466     0.466
fracstop        1.000     1.000     1.000
cjmean          2.828     2.828     2.828

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       185.8     185.7     185.7
kozaiamp        180.0     180.0     180.0