Orbit Fit and Astrometric record for 14UZ224

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: 14UZ224   
# Created Sun Dec 17 02:38:07 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:   2.23y
# First observation: 2014/08/19
#  Last observation: 2016/11/10
Preliminary a, adot, b, bdot, g, gdot:
  -0.000002   0.005935   0.000002   0.000014   0.010907   0.000000
# Chi-squared of fit:     6.97 DOF:   30 RMS:  0.11
# Min/Max residuals:    -0.19    0.29
# Exact a, adot, b, bdot, g, gdot:
  8.193561E-06  5.899531E-03  1.751550E-07  2.525853E-05  1.083370E-02 -4.795797E-03
# Covariance matrix:
  4.7937E-13  8.4038E-14  1.3928E-13 -7.6361E-14  5.7387E-13  2.8737E-11
  8.4038E-14  2.6411E-13  9.1326E-14 -5.6012E-14  3.8015E-13  2.3828E-11
  1.3928E-13  9.1326E-14  2.3222E-13 -1.4040E-13  2.6556E-13  1.4538E-11
 -7.6361E-14 -5.6012E-14 -1.4040E-13  1.4473E-13 -1.5273E-13 -9.3281E-12
  5.7387E-13  3.8015E-13  2.6556E-13 -1.5273E-13  1.0988E-12  6.0781E-11
  2.8737E-11  2.3828E-11  1.4538E-11 -9.3281E-12  6.0781E-11  4.1387E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.857120   41.678003    0.982489   -0.114568   -0.226545  2456888.925361
# Heliocentric elements and errors
Epoch:              2456880.5000  =  2014/08/11
Mean Anomaly:          320.34176 +/-     0.948
Argument of Peri:       28.84871 +/-     0.313
Long of Asc Node:      131.24295 +/-     0.009
Inclination:            26.78488 +/-     0.000
Eccentricity:         0.65227395 +/-    0.0066
Semi-Major Axis:    110.02206250 +/-    1.6578
Time of Perihelion: 2503315.8892 +/-     362.2
Perihelion:          38.25753697 +/-    0.9306
Aphelion:           181.78658804 +/-    2.8348
Period (y)             1154.0586 +/-     26.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           62.34553729 +/-    0.0060
Ecliptic Y           54.19400364 +/-    0.0053
Ecliptic Z          -41.70018329 +/-    0.0041
Ecliptic XDOT        -0.00180168 +/-    0.0000
Ecliptic YDOT         0.00039221 +/-    0.0000
Ecliptic ZDOT         0.00055335 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   92.53573006 +/-    0.0054
Geocenter to KBO     92.30459548 +/-    0.0089
# Hcoef:  4.00

The following table shows the complete astrometric record for 14UZ224. 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 (14UZ224) followed by the observatory code and reference code for the source of the astrometry.

2014 08  19.424583 03 09 29.78   -10 17 00.6   22.8i 14UZ224   W84  C~1zPw      
2014 09  27.311201 03 08 56.22   -10 29 11.5   23.6g 14UZ224   W84  C~1zPw      
2014 09  27.312569 03 08 56.21   -10 29 11.2   23.5r 14UZ224   W84  C~1zPw      
2014 09  27.313935 03 08 56.22   -10 29 11.3   22.9i 14UZ224   W84  C~1zPw      
2014 10  21.357384 03 08 10.70   -10 35 49.5   23.1r 14UZ224   W84  C~1wzB      
2014 10  21.358750 03 08 10.68   -10 35 49.5   23.3i 14UZ224   W84  C~1wzB      
2014 10  21.362870 03 08 10.69   -10 35 49.4   22.7z 14UZ224   W84  C~1wzB      
2014 10  23.353218 03 08 06.34   -10 36 17.3   23.1r 14UZ224   W84  C~1wzB      
2014 10  28.341632 03 07 55.24   -10 37 22.8   22.7i 14UZ224   W84  C~1zPw      
2015 01  08.140694 03 05 31.64   -10 38 07.9   22.7z 14UZ224   W84  C~1zPw      
2015 11  30.253808 03 07 58.72   -10 35 21.4   22.8i 14UZ224   W84  C~1zPw      
2015 12  17.191667 03 07 23.66   -10 35 03.1   23.0r 14UZ224   W84  C~1zPw      
2015 12  17.193067 03 07 23.66   -10 35 02.8   23.6g 14UZ224   W84  C~1zPw      
2016 01  16.116574 03 06 41.95   -10 30 25.2   23.0i 14UZ224   W84  C~1zPw      
2016 07  18.413576 03 11 49.06   -09 56 39.0         14UZ224   W84  C~1zPw      
2016 07  18.416238 03 11 49.06   -09 56 39.1   22.4i 14UZ224   W84  C~1zPw      
2016 10  26.331991 03 10 37.40   -10 24 43.3   23.1r 14UZ224   W84  C~2Azz      
2016 11  10.288287 03 10 02.67   -10 27 26.9   22.6i 14UZ224   W84  C~2Azz      

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     0.09       0.00    -0.03
  2   0.1065   -692.62    -0.03    -547.43    -0.19
  3   0.1065   -692.67    -0.04    -547.10     0.16
  4   0.1065   -692.56     0.11    -547.24     0.03
  5   0.1723  -1452.63     0.09    -724.74    -0.19
  6   0.1723  -1452.91    -0.14    -724.65    -0.10
  7   0.1723  -1452.74     0.17    -724.60    -0.03
  8   0.1778  -1522.31    -0.15    -731.90     0.05
  9   0.1914  -1698.09    -0.18    -745.14     0.09
 10   0.3880  -3731.61     0.14    -153.33     0.08
 11   1.2808  -1612.64    -0.01    -644.79     0.02
 12   1.3272  -2100.22    -0.14    -471.95     0.02
 13   1.3272  -2100.13    -0.02    -471.66     0.29
 14   1.4091  -2603.62     0.08     -22.24     0.08
 15   1.9137   2330.18     0.03     541.50    -0.03
 16   1.9137   2330.15    -0.03     541.40    -0.09
 17   2.1873    811.20     0.01    -742.75    -0.17
 18   2.2282    273.37     0.03    -743.66     0.03

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.

14UZ224    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       110.466   115.732   105.837
ecceobj         0.648     0.668     0.628
incobj         26.781    26.781    26.781
qmin           36.217    36.035    37.798
qmax          188.308   198.812   176.251
amean         109.485   114.336   104.868
amin          107.389   111.885   103.119
amax          112.901   118.030   107.694
emean           0.655     0.673     0.623
emin            0.640     0.660     0.606
emax            0.669     0.685     0.639
imean          24.649    24.695    26.274
imin           23.857    24.249    25.116
imax           25.978    25.823    27.487
excite_mean     0.777     0.792     0.764
fracstop        1.000     1.000     1.000
cjmean          2.894     2.882     2.906

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        98.8      82.8      34.5
kozaiamp         71.2      56.8       4.5