Orbit Fit and Astrometric record for 11CY119

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: 11CY119   
# Created Thu Oct 19 01:37:56 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:   3.08y
# First observation: 2011/02/04
#  Last observation: 2014/03/05
Preliminary a, adot, b, bdot, g, gdot:
  -0.000162   0.026131  -0.000050   0.010048   0.024537   0.000000
# Chi-squared of fit:    15.15 DOF:   30 RMS:  0.16
# Min/Max residuals:    -0.39    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.576875E-05  2.575256E-02  6.769028E-06  9.883557E-03  2.465289E-02 -4.019859E-03
# Covariance matrix:
  2.5686E-13 -2.1289E-13  1.5849E-14 -6.4596E-14  1.5531E-13 -2.2003E-12
 -2.1289E-13  6.1724E-13 -6.2438E-14  2.4927E-13  2.4427E-14  8.4094E-12
  1.5849E-14 -6.2438E-14  1.8763E-13 -1.0221E-13 -9.1832E-16 -9.3588E-13
 -6.4596E-14  2.4927E-13 -1.0221E-13  1.6616E-13 -1.4000E-15  3.7403E-12
  1.5531E-13  2.4427E-14 -9.1832E-16 -1.4000E-15  6.1967E-13 -1.2786E-13
 -2.2003E-12  8.4094E-12 -9.3588E-13  3.7403E-12 -1.2786E-13  1.2625E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.328205  163.154021    0.462605   -0.096368   -0.868962  2455596.961606
# Heliocentric elements and errors
Epoch:              2455590.5000  =  2011/01/29
Mean Anomaly:          345.10391 +/-     0.031
Argument of Peri:       16.63687 +/-     0.077
Long of Asc Node:      178.19486 +/-     0.000
Inclination:            21.87578 +/-     0.000
Eccentricity:         0.36664084 +/-    0.0002
Semi-Major Axis:     62.50391574 +/-    0.0155
Time of Perihelion: 2463058.9274 +/-      15.1
Perihelion:          39.58742774 +/-    0.0181
Aphelion:            85.42040374 +/-    0.0260
Period (y)              494.1617 +/-      0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.28474039 +/-    0.0012
Ecliptic Y           12.37860301 +/-    0.0004
Ecliptic Z           -4.47076261 +/-    0.0001
Ecliptic XDOT        -0.00052107 +/-    0.0000
Ecliptic YDOT        -0.00282469 +/-    0.0000
Ecliptic ZDOT         0.00114016 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.43076584 +/-    0.0012
Geocenter to KBO     40.56318864 +/-    0.0013
# Hcoef:  6.82

The following table shows the complete astrometric record for 11CY119. 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 (11CY119) followed by the observatory code and reference code for the source of the astrometry.

2011 02  04.46084  10 48 12.701  +00 46 13.36  22.9w 11CY119   F51  C~1w3n      
2011 02  04.47509  10 48 12.653  +00 46 13.93  23.3w 11CY119   F51  C~1w3n      
2011 02  05.44897  10 48 08.811  +00 46 38.41  23.3w 11CY119   F51  C~1w3n      
2011 02  05.49209  10 48 08.659  +00 46 39.71  23.1w 11CY119   F51  C~1w3n      
2011 03  30.36107  10 44 25.420  +01 14 45.03  23.5w 11CY119   F51  C~1w3n      
2011 03  30.37435  10 44 25.386  +01 14 45.80  23.5w 11CY119   F51  C~1w3n      
2011 03  30.40208  10 44 25.284  +01 14 47.02  23.2w 11CY119   F51  C~1w3n      
2012 01  19.49067  10 55 27.875  +00 38 13.25  23.0w 11CY119   F51  C~1w3n      
2012 01  19.50473  10 55 27.850  +00 38 13.59  23.3w 11CY119   F51  C~1w3n      
2012 01  19.51880  10 55 27.816  +00 38 13.83  23.4w 11CY119   F51  C~1w3n      
2013 03  05.41397  10 58 52.666  +00 56 25.50  22.8w 11CY119   F51  C~1w3n      
2013 03  05.42893  10 58 52.584  +00 56 26.33  22.7w 11CY119   F51  C~1w3n      
2013 03  05.44386  10 58 52.498  +00 56 26.67  22.8w 11CY119   F51  C~1w3n      
2013 03  05.45883  10 58 52.454  +00 56 27.04  22.9w 11CY119   F51  C~1w3n      
2014 02  28.41368  11 05 44.016  +00 51 05.27  22.4w 11CY119   F51  C~1w3n      
2014 02  28.42622  11 05 43.978  +00 51 05.81  22.7w 11CY119   F51  C~1w3n      
2014 02  28.43862  11 05 43.892  +00 51 06.19  22.7w 11CY119   F51  C~1w3n      
2014 03  05.50421  11 05 21.452  +00 53 56.03  22.7w 11CY119   F51  C~1w3n      

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    -0.09
  2   0.0000     -0.88     0.19       0.25     0.16
  3   0.0027    -63.49    -0.26       0.95    -0.12
  4   0.0028    -66.09    -0.05       1.28     0.19
  5   0.1476  -3804.04    -0.06     285.47    -0.39
  6   0.1476  -3804.81     0.04     285.98     0.00
  7   0.1477  -3806.68    -0.02     286.53     0.29
  8   0.9556   6219.98    -0.19    2043.13    -0.12
  9   0.9556   6219.50     0.00    2043.30     0.07
 10   0.9557   6218.94     0.11    2043.33     0.11
 11   2.0806   8647.25     0.29    4226.51    -0.11
 12   2.0807   8645.79    -0.04    4226.81     0.11
 13   2.0807   8644.46    -0.23    4226.63    -0.15
 14   2.0808   8643.71     0.15    4226.72    -0.14
 15   3.0663  14494.28     0.03    6293.49    -0.07
 16   3.0663  14493.54     0.24    6293.77     0.15
 17   3.0663  14492.20    -0.17    6293.62    -0.05
 18   3.0802  14114.34    -0.19    6321.82     0.16

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.

11CY119    quality flag:2

Type:       SCATNEAR  SCATNEAR     3:1EE

axisobj        62.592    62.634    62.551
ecceobj         0.367     0.367     0.366
incobj         21.881    21.881    21.880
qmin           37.858    37.333    38.661
qmax           89.110    89.710    88.268
amean          62.634    62.585    62.630
amin           61.611    61.579    61.723
amax           63.880    63.866    63.827
emean           0.373     0.381     0.366
emin            0.348     0.356     0.352
emax            0.398     0.405     0.384
imean          20.988    20.549    21.427
imin           20.054    19.746    20.945
imax           21.922    21.422    21.821
excite_mean     0.517     0.518     0.517
fracstop        1.000     1.000     1.000
cjmean          2.980     2.978     2.979

libcent 0      -180.0    -180.0     180.3
libamp  0      -180.0    -180.0     172.9
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       165.8     170.6     163.6
kozaiamp        179.9     180.0     180.0