Orbit Fit and Astrometric record for 14UY224

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: 14UY224   
# Created Fri Dec 15 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   14 observations of   14
# Arc:   1.15y
# First observation: 2014/10/21
#  Last observation: 2015/12/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000034   0.064561  -0.000031  -0.008654   0.041350   0.000000
# Chi-squared of fit:     6.17 DOF:   22 RMS:  0.12
# Min/Max residuals:    -0.38    0.20
# Exact a, adot, b, bdot, g, gdot:
  2.415170E-05  6.358321E-02 -4.052753E-06 -8.490990E-03  4.146073E-02 -2.811345E-02
# Covariance matrix:
  2.5249E-13  9.5445E-13 -1.6102E-14 -1.5499E-13  5.7814E-13  1.8991E-11
  9.5445E-13  3.6081E-11 -1.9791E-13 -5.0314E-12  1.3503E-11  6.4851E-10
 -1.6102E-14 -1.9791E-13  1.7098E-13 -1.4115E-13 -1.0560E-13 -3.3125E-12
 -1.5499E-13 -5.0314E-12 -1.4115E-13  1.1536E-12 -1.8953E-12 -9.1661E-11
  5.7814E-13  1.3503E-11 -1.0560E-13 -1.8953E-12  5.5898E-12  2.4123E-10
  1.8991E-11  6.4851E-10 -3.3125E-12 -9.1661E-11  2.4123E-10  1.1843E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.465575   39.039419    0.198853   -0.435351   -0.874900  2456951.856797
# Heliocentric elements and errors
Epoch:              2456950.5000  =  2014/10/20
Mean Anomaly:          357.19703 +/-     0.050
Argument of Peri:      308.27791 +/-     0.113
Long of Asc Node:      145.45347 +/-     0.004
Inclination:            26.46489 +/-     0.000
Eccentricity:         0.84394219 +/-    0.0020
Semi-Major Axis:    130.47317731 +/-    1.5495
Time of Perihelion: 2461188.8418 +/-       2.9
Perihelion:          20.36135833 +/-    0.3583
Aphelion:           240.58499628 +/-    2.8694
Period (y)             1490.3561 +/-     26.55
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           17.65178716 +/-    0.0010
Ecliptic Y           14.06225956 +/-    0.0008
Ecliptic Z          -10.74910593 +/-    0.0006
Ecliptic XDOT        -0.00413396 +/-    0.0000
Ecliptic YDOT         0.00205225 +/-    0.0000
Ecliptic ZDOT         0.00032552 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   24.99752012 +/-    0.0008
Geocenter to KBO     24.11921013 +/-    0.0014
# Hcoef:  9.33

The following table shows the complete astrometric record for 14UY224. 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 (14UY224) followed by the observatory code and reference code for the source of the astrometry.

2014 10  21.356019 02 59 52.86   -10 38 16.0   23.7g 14UY224   W84  C~1wab      
2014 10  21.360127 02 59 52.83   -10 38 16.3   22.5i 14UY224   W84  C~1wab      
2014 10  23.347766 02 59 39.42   -10 39 54.5   23.1i 14UY224   W84  C~1wab      
2014 10  23.349132 02 59 39.41   -10 39 54.7   23.1r 14UY224   W84  C~1wab      
2014 10  28.334838 02 59 04.89   -10 43 44.6   22.7r 14UY224   W84  C~1wab      
2014 10  28.336192 02 59 04.87   -10 43 44.7   23.4i 14UY224   W84  C~1wab      
2014 11  03.318889 02 58 22.22   -10 47 46.6   23.6g 14UY224   W84  C~1wab      
2014 12  12.212300 02 53 57.96   -10 55 53.1   22.2z 14UY224   W84  C~1wab      
2015 01  08.137947 02 52 10.00   -10 41 52.7   22.0z 14UY224   W84  C~1wab      
2015 01  26.071609 02 51 55.76   -10 25 00.4   21.7z 14UY224   W84  C~1wab      
2015 11  01.322002 03 13 43.23   -10 03 27.2   22.3z 14UY224   W84  C~1wab      
2015 11  30.253819 03 10 10.86   -10 15 08.3   22.3i 14UY224   W84  C~1wab      
2015 12  17.191667 03 08 22.75   -10 13 11.3   22.8r 14UY224   W84  C~1wab      
2015 12  17.193067 03 08 22.73   -10 13 11.4   23.7g 14UY224   W84  C~1wab      

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     0.02       0.00     0.17
  2   0.0000     -0.51    -0.04      -0.15     0.09
  3   0.0055   -219.04     0.03     -31.24     0.12
  4   0.0055   -219.25    -0.02     -31.39    -0.01
  5   0.0191   -774.50     0.12     -89.91    -0.10
  6   0.0191   -774.82    -0.04     -89.92    -0.09
  7   0.0355  -1447.48    -0.05    -122.61    -0.12
  8   0.1420  -5299.36    -0.10     627.84     0.09
  9   0.2157  -6553.51     0.04    1919.46    -0.38
 10   0.2648  -6441.15     0.05    2947.81     0.20
 11   1.0293  12292.78     0.03   -1938.55     0.18
 12   1.1085   9090.05     0.03   -1586.80    -0.12
 13   1.1549   7613.96     0.07    -962.37     0.02
 14   1.1549   7613.64    -0.14    -962.37    -0.04

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.

14UY224    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj       133.051   135.985   130.287
ecceobj         0.846     0.850     0.843
incobj         26.428    26.426    26.429
qmin           19.222    18.962    19.129
qmax          326.096   305.234   260.152
amean         145.791   138.180   126.349
amin          126.039   125.511   116.807
amax          173.123   162.584   140.091
emean           0.861     0.855     0.841
emin            0.835     0.836     0.827
emax            0.884     0.877     0.857
imean          24.073    24.354    24.035
imin           23.099    23.321    23.052
imax           25.533    25.448    25.461
excite_mean     0.953     0.949     0.935
fracstop        0.314     0.274     0.317
cjmean          2.249     2.243     2.261

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       330.1     328.2     331.1
kozaiamp         21.6      20.0     180.0