Orbit Fit and Astrometric record for 14UC225

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: 14UC225   
# Created Mon Oct 23 01:38:30 2017
# Orbit generated from Bernstein formalism
# Fitting   12 observations of   12
# Arc:   2.91y
# First observation: 2014/10/28
#  Last observation: 2017/09/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000062   0.038964  -0.000002  -0.001592   0.033253   0.000000
# Chi-squared of fit:    37.21 DOF:   18 RMS:  0.31
# Min/Max residuals:    -0.88    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.875397E-05  3.882271E-02 -1.522166E-06 -1.579890E-03  3.289563E-02 -1.018824E-03
# Covariance matrix:
  6.5548E-13 -2.8086E-13 -1.2767E-14 -6.8711E-15  1.9096E-12  2.4365E-12
 -2.8086E-13  1.3033E-12  6.4086E-15 -4.2377E-14  1.8046E-13  9.6133E-12
 -1.2767E-14  6.4086E-15  1.8934E-13 -8.5944E-14 -5.1312E-14 -5.6360E-14
 -6.8711E-15 -4.2377E-14 -8.5944E-14  1.1354E-13 -6.7967E-14 -4.6905E-13
  1.9096E-12  1.8046E-13 -5.1312E-14 -6.7967E-14  8.6777E-12  1.9334E-11
  2.4365E-12  9.6133E-12 -5.6360E-14 -4.6905E-13  1.9334E-11  1.1450E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.514047   21.489868   -0.221650   -0.076172   -0.967166  2456958.713799
# Heliocentric elements and errors
Epoch:              2456950.5000  =  2014/10/20
Mean Anomaly:          350.14955 +/-     0.116
Argument of Peri:      254.56533 +/-     0.146
Long of Asc Node:      139.70032 +/-     0.005
Inclination:             4.94306 +/-     0.000
Eccentricity:         0.10938436 +/-    0.0003
Semi-Major Axis:     35.13810884 +/-    0.0151
Time of Perihelion: 2459032.2070 +/-      24.5
Perihelion:          31.29454913 +/-    0.0177
Aphelion:            38.98166856 +/-    0.0203
Period (y)              208.2935 +/-      0.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.01689265 +/-    0.0025
Ecliptic Y           11.66514663 +/-    0.0010
Ecliptic Z           -2.39262037 +/-    0.0002
Ecliptic XDOT        -0.00127640 +/-    0.0000
Ecliptic YDOT         0.00296694 +/-    0.0000
Ecliptic ZDOT        -0.00012430 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.36527278 +/-    0.0024
Geocenter to KBO     30.39917445 +/-    0.0027
# Hcoef:  8.02

The following table shows the complete astrometric record for 14UC225. 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 (14UC225) followed by the observatory code and reference code for the source of the astrometry.

2014 10  28.213021 01 26 12.59   +04 11 23.0   22.5r 14UC225   W84  C~1zPw      
2014 10  28.230243 01 26 12.48   +04 11 22.3   23.4g 14UC225   W84  C~1zPw      
2014 11  14.071690 01 24 41.22   +04 03 03.5   22.7r 14UC225   W84  C~1zPw      
2014 11  14.135764 01 24 40.90   +04 03 01.8   22.5i 14UC225   W84  C~1zPw      
2014 11  15.172940 01 24 35.75   +04 02 35.2   22.2i 14UC225   W84  C~1zPw      
2014 11  17.151088 01 24 26.15   +04 01 46.6   21.9z 14UC225   W84  C~1zPw      
2014 11  28.104190 01 23 38.32   +03 57 58.0   21.9z 14UC225   W84  C~1zPw      
2015 11  06.185023 01 33 48.32   +04 51 02.6   22.7r 14UC225   W84  C~1zPw      
2015 11  06.186389 01 33 48.31   +04 51 02.5   22.4i 14UC225   W84  C~1zPw      
2015 11  06.187755 01 33 48.32   +04 51 02.3   23.0g 14UC225   W84  C~1zPw      
2017 09  23.37758  01 54 50.69   +06 42 49.5   22.2R 14UC225   G37  C~2LT9      
2017 09  23.46046  01 54 50.25   +06 42 46.7         14UC225   G37  C~2LT9      

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     0.16
  2   0.0000     -1.79    -0.20      -0.04     0.09
  3   0.0462  -1454.77     0.16      43.84     0.30
  4   0.0463  -1459.85     0.23      44.04     0.22
  5   0.0492  -1541.28     0.03      47.98     0.10
  6   0.0546  -1692.70     0.07      56.24     0.26
  7   0.0846  -2442.17    -0.23     110.08     0.26
  8   1.0239   7214.44    -0.05    -310.30    -0.59
  9   1.0239   7214.27    -0.10    -310.34    -0.63
 10   1.0239   7214.33     0.09    -310.58    -0.88
 11   2.9053  27357.30     0.16    -938.90     0.32
 12   2.9055  27350.05    -0.14    -939.15     0.39

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.

14UC225    quality flag:1

Type:        REMOVED  SCATNEAR  CENTAURR

axisobj        35.415    35.458    35.373
ecceobj         0.116     0.116     0.115
incobj          4.935     4.935     4.935
qmin           30.899    30.405    25.157
qmax           58.874    62.961    49.779
amean          38.187    37.310    35.230
amin           32.843    32.817    28.010
amax           45.150    47.096    40.783
emean           0.162     0.143     0.101
emin            0.024     0.017     0.034
emax            0.306     0.340     0.221
imean           3.410     5.520     3.533
imin            1.660     2.208     1.755
imax            5.086     8.843     5.225
excite_mean     0.175     0.175     0.119
fracstop        0.444     1.000     0.193
cjmean          3.003     2.997     3.002

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       175.7     177.4     195.6
kozaiamp        179.9     180.0     179.9