Orbit Fit and Astrometric record for 05EM303

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: 05EM303   
# Created Tue Oct 24 01:37:35 2017
# Orbit generated from Bernstein formalism
# Fitting   13 observations of   13
# Arc:   8.17y
# First observation: 2005/03/11
#  Last observation: 2013/05/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.000090   0.023357  -0.000001   0.000204   0.023803   0.000000
# Chi-squared of fit:    32.32 DOF:   20 RMS:  0.28
# Min/Max residuals:    -0.59    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.605218E-05  2.315447E-02  1.125858E-07  1.978442E-04  2.387084E-02  7.073674E-05
# Covariance matrix:
  4.1949E-13 -1.2915E-13  9.4295E-16 -1.0977E-15  3.6440E-13 -7.4996E-13
 -1.2915E-13  7.1854E-13 -1.8355E-15  6.4213E-15  3.2288E-13  3.9859E-12
  9.4295E-16 -1.8355E-15  1.5207E-13 -2.3449E-14  2.5453E-16 -1.0786E-14
 -1.0977E-15  6.4213E-15 -2.3449E-14  1.3937E-14  2.7218E-15  3.6403E-14
  3.6440E-13  3.2288E-13  2.5453E-16  2.7218E-15  8.2545E-13  1.5769E-12
 -7.4996E-13  3.9859E-12 -1.0786E-14  3.6403E-14  1.5769E-12  2.2638E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.692382 -161.780836    0.455816    0.087177   -0.873731  2453440.889073
# Heliocentric elements and errors
Epoch:              2453440.5000  =  2005/03/11
Mean Anomaly:          344.96073 +/-     0.451
Argument of Peri:      100.25791 +/-     0.476
Long of Asc Node:      113.19947 +/-     0.003
Inclination:             5.60139 +/-     0.000
Eccentricity:         0.02567951 +/-    0.0001
Semi-Major Axis:     43.85818746 +/-    0.0063
Time of Perihelion: 2457872.4902 +/-     132.9
Perihelion:          42.73193078 +/-    0.0076
Aphelion:            44.98444413 +/-    0.0078
Period (y)              290.4586 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.57640325 +/-    0.0015
Ecliptic Y          -12.87549817 +/-    0.0005
Ecliptic Z            4.15520155 +/-    0.0002
Ecliptic XDOT         0.00082487 +/-    0.0000
Ecliptic YDOT        -0.00253152 +/-    0.0000
Ecliptic ZDOT         0.00002345 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.77252219 +/-    0.0014
Geocenter to KBO     41.89211700 +/-    0.0016
# Hcoef:  7.50

The following table shows the complete astrometric record for 05EM303. 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 (05EM303) followed by the observatory code and reference code for the source of the astrometry.

2005 03  11.38833  13 15 52.72   -01 52 36.4   23.3R 05EM303   695  Cn0312      
2005 03  11.48760  13 15 52.34   -01 52 33.9         05EM303   695  Cn0312      
2005 03  12.41187  13 15 48.90   -01 52 08.8         05EM303   695  Cn0312      
2005 04  15.21936  13 13 25.62   -01 36 30.7   24.3R 05EM303   304  Cn3361      
2005 04  15.25873  13 13 25.49   -01 36 29.8         05EM303   304  Cn3361      
2005 06  07.05035  13 10 21.60   -01 21 37.4   23.6R 05EM303   304  Cn6541      
2005 06  07.14241  13 10 21.41   -01 21 36.8         05EM303   304  Cn6541      
2006 04  26.08455  13 17 37.10   -02 01 44.2   22.6R 05EM303   807  Cr3594      
2006 04  26.16780  13 17 36.71   -02 01 42.0         05EM303   807  Cr3594      
2006 04  27.11423  13 17 32.70   -02 01 19.6         05EM303   807  Cr3594      
2006 04  27.18598  13 17 32.39   -02 01 18.2         05EM303   807  Cr3594      
2013 05  14.23195  13 51 04.25   -05 19 31.8   23.6R 05EM303   G37  C~0snm      
2013 05  14.29607  13 51 04.04   -05 19 31.7         05EM303   G37  C~0snm      

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    -0.15       0.00     0.00
  2   0.0003     -6.22    -0.11       0.16    -0.20
  3   0.0028    -63.45     0.26       3.90    -0.23
  4   0.0954  -2407.00    -0.35      59.88     0.25
  5   0.0955  -2409.14     0.34      59.98     0.39
  6   0.2400  -5300.25     0.03    -157.77     0.07
  7   0.2403  -5303.11    -0.04    -158.30     0.21
  8   1.1244   1655.80     0.40      84.19    -0.23
  9   1.1247   1649.56    -0.10      84.02    -0.17
 10   1.1272   1585.43    -0.19      82.05     0.06
 11   1.1274   1580.60    -0.11      81.59    -0.20
 12   8.1748  34265.18    -0.59     319.04     0.40
 13   8.1750  34262.15     0.59     317.96    -0.35

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.

05EM303    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.318    43.336    43.299
ecceobj         0.014     0.015     0.014
incobj          5.602     5.602     5.602
qmin           42.234    42.232    42.197
qmax           45.164    45.157    45.097
amean          43.615    43.633    43.596
amin           43.285    43.305    43.261
amax           43.955    43.968    43.936
emean           0.014     0.014     0.013
emin            0.000     0.000     0.000
emax            0.028     0.028     0.027
imean           4.083     4.080     4.086
imin            3.420     3.427     3.419
imax            4.753     4.745     4.758
excite_mean     0.073     0.073     0.073
fracstop        1.000     1.000     1.000
cjmean          3.091     3.091     3.090

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       180.0     178.8     179.8
kozaiamp        179.9     179.9     180.0