Orbit Fit and Astrometric record for 14UX228

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: 14UX228   
# Created Tue Nov 30 02:12:53 2021
# Orbit generated from Bernstein formalism
# Fitting     43 observations of     43
# Arc:   2.33y
# First observation: 2013/08/09
#  Last observation: 2015/12/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000140   0.024971  -0.000015   0.009387   0.026770   0.000000
# Chi-squared of fit:     3.11 DOF:     80 RMS:  0.05
# Min/Max residuals:    -0.16    0.12
# Exact a, adot, b, bdot, g, gdot:
  1.404790E-05  2.479199E-02  5.506776E-06  9.324124E-03  2.679084E-02  5.033547E-03
# Covariance matrix:
  1.5922E-13 -7.4270E-14  2.3613E-15 -8.9142E-15  6.1530E-14 -3.6674E-13
 -7.4270E-14  2.5705E-13 -4.1825E-14  1.2699E-13  1.1261E-13  5.7723E-12
  2.3613E-15 -4.1825E-14  1.0787E-13 -8.8661E-14 -2.4037E-14 -1.2173E-12
 -8.9142E-15  1.2699E-13 -8.8661E-14  1.4006E-13  7.0970E-14  3.6963E-12
  6.1530E-14  1.1261E-13 -2.4037E-14  7.0970E-14  1.4307E-13  3.2703E-12
 -3.6674E-13  5.7723E-12 -1.2173E-12  3.6963E-12  3.2703E-12  1.6801E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.008091   29.278541    0.968466    0.010748   -0.305574  2456514.023888
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:           92.53477 +/-     0.090
Argument of Peri:      254.80340 +/-     0.068
Long of Asc Node:       22.51573 +/-     0.000
Inclination:            20.65647 +/-     0.001
Eccentricity:         0.16409026 +/-    0.0004
Semi-Major Axis:     36.42752526 +/-    0.0062
Time of Perihelion: 2435868.8031 +/-      19.4
Perihelion:          30.45012328 +/-    0.0160
Aphelion:            42.40492724 +/-    0.0168
Period (y)              219.8633 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.27784236 +/-    0.0005
Ecliptic Y           17.55112230 +/-    0.0003
Ecliptic Z            1.30817655 +/-    0.0000
Ecliptic XDOT        -0.00082600 +/-    0.0000
Ecliptic YDOT         0.00244412 +/-    0.0000
Ecliptic ZDOT         0.00097044 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.64529203 +/-    0.0004
Geocenter to KBO     37.32618538 +/-    0.0005
# Hcoef:  7.43

The following table shows the complete astrometric record for 14UX228. 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 (14UX228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.52311  01 45 58.282  +13 05 41.70  23.2r 14UX228   568  C~2SDi      
2013 08  09.56579  01 45 58.222  +13 05 41.74  23.2r 14UX228   568  C~2SDi      
2013 09  02.44079  01 45 03.520  +13 04 05.67  23.3r 14UX228   568  C~2SDi      
2013 09  02.48390  01 45 03.375  +13 04 05.28  23.3r 14UX228   568  C~2SDi      
2013 09  03.45987  01 45 00.086  +13 03 55.12  23.2r 14UX228   568  C~2SDi      
2013 09  03.50646  01 44 59.923  +13 03 54.62  23.2r 14UX228   568  C~2SDi      
2013 10  08.52096  01 42 22.119  +12 53 35.04  23.1r 14UX228   568  C~2SDi      
2013 11  01.52056  01 40 13.261  +12 43 46.35  23.0r 14UX228   568  C~2SDi      
2013 11  29.26449  01 38 02.933  +12 33 17.77  23.2r 14UX228   568  C~2SDi      
2013 12  04.40991  01 37 43.854  +12 31 44.81  23.3r 14UX228   568  C~2SDi      
2014 01  02.20518  01 36 40.618  +12 26 48.59  23.1r 14UX228   568  C~2SDi      
2014 01  02.26136  01 36 40.558  +12 26 48.52  23.3r 14UX228   568  C~2SDi      
2014 01  02.31334  01 36 40.513  +12 26 48.36  23.4r 14UX228   568  C~2SDi      
2014 01  03.22715  01 36 39.867  +12 26 46.26  23.2r 14UX228   568  C~2SDi      
2014 01  03.26959  01 36 39.843  +12 26 46.11  23.3r 14UX228   568  C~2SDi      
2014 01  03.29086  01 36 39.824  +12 26 46.08  23.1r 14UX228   568  C~2SDi      
2014 07  26.53762  01 50 43.399  +14 03 41.95  23.4r 14UX228   568  C~2SDi      
2014 07  26.58079  01 50 43.411  +14 03 42.51  23.3r 14UX228   568  C~2SDi      
2014 08  24.47811  01 50 12.468  +14 05 34.30  23.2r 14UX228   568  C~2SDi      
2014 08  24.54804  01 50 12.291  +14 05 34.04  23.2r 14UX228   568  C~2SDi      
2014 08  30.45338  01 49 56.254  +14 05 01.29  23.2r 14UX228   568  C~2SDi      
2014 08  30.55998  01 49 55.924  +14 05 00.54  23.3r 14UX228   568  C~2SDi      
2014 09  18.47852  01 48 45.776  +14 01 20.82  23.3r 14UX228   568  C~2SDi      
2014 09  18.52125  01 48 45.585  +14 01 20.12  23.2r 14UX228   568  C~2SDi      
2014 09  23.51955  01 48 23.024  +13 59 56.29  23.1r 14UX228   568  C~2SDi      
2014 10  22.30273  01 45 54.275  +13 49 29.83  23.0r 14UX228   568  C~2SDi      
2014 10  22.34832  01 45 54.028  +13 49 28.70  23.2r 14UX228   568  C~2SDi      
2014 10  22.39209  01 45 53.786  +13 49 27.66  23.1r 14UX228   568  C~2SDi      
2014 10  23.49156  01 45 47.801  +13 49 00.65  23.2r 14UX228   568  C~2SDi      
2014 10  25.50750  01 45 36.872  +13 48 10.93  23.0r 14UX228   568  C~2SDi      
2014 11  20.23887  01 43 25.498  +13 37 48.59  23.3r 14UX228   568  C~2SDi      
2015 01  28.27933  01 41 31.075  +13 28 44.68  23.1r 14UX228   568  C~2SDi      
2015 02  19.25614  01 42 34.491  +13 35 01.73  23.3r 14UX228   568  C~2SDi      
2015 10  09.40973  01 51 49.308  +14 54 57.90  23.0w 14UX228   568  C~2SDi      
2015 10  09.42762  01 51 49.213  +14 54 57.57  23.1w 14UX228   568  C~2SDi      
2015 10  09.45291  01 51 49.072  +14 54 57.03  23.3w 14UX228   568  C~2SDi      
2015 10  09.47042  01 51 48.989  +14 54 56.62  23.4w 14UX228   568  C~2SDi      
2015 10  09.51628  01 51 48.739  +14 54 55.67  23.1w 14UX228   568  C~2SDi      
2015 10  13.35876  01 51 28.399  +14 53 31.00        14UX228   568  C~2SDi      
2015 10  13.42514  01 51 28.030  +14 53 29.50        14UX228   568  C~2SDi      
2015 10  14.47894  01 51 22.381  +14 53 05.74  23.1r 14UX228   568  C~2SDi      
2015 10  14.54658  01 51 22.011  +14 53 04.18        14UX228   568  C~2SDi      
2015 12  07.40784  01 46 58.741  +14 32 26.24  23.5w 14UX228   568  C~2SDi      

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     0.12       0.00    -0.00
     2   0.0001     -0.80     0.01       0.35    -0.03
     3   0.0655   -781.75    -0.02     195.64    -0.03
     4   0.0656   -783.87     0.02     196.04    -0.01
     5   0.0683   -832.39     0.03     203.71     0.00
     6   0.0684   -834.79     0.03     204.09    -0.01
     7   0.1643  -3210.48    -0.02     452.20    -0.00
     8   0.2300  -5181.56    -0.16     582.61     0.04
     9   0.3059  -7189.05    -0.05     688.25    -0.04
    10   0.3200  -7483.46    -0.03     703.23     0.11
    11   0.3989  -8455.30     0.12     764.67    -0.10
    12   0.3990  -8456.15    -0.01     764.93     0.03
    13   0.3992  -8456.82    -0.02     765.02     0.02
    14   0.4017  -8466.41    -0.02     766.52     0.02
    15   0.4018  -8466.79     0.07     766.50    -0.08
    16   0.4018  -8467.07     0.03     766.58    -0.05
    17   0.9610   5121.11     0.00    1783.78    -0.03
    18   0.9611   5121.47     0.01    1784.24     0.01
    19   1.0403   4739.20     0.00    2047.37    -0.03
    20   1.0405   4736.70     0.01    2048.04    -0.02
    21   1.0566   4506.68    -0.00    2099.58     0.04
    22   1.0569   4501.92    -0.05    2100.57     0.05
    23   1.1087   3468.91    -0.04    2255.24     0.02
    24   1.1088   3466.06    -0.05    2255.57    -0.01
    25   1.1225   3129.18    -0.04    2293.29     0.04
    26   1.2013    881.72    -0.05    2476.65     0.06
    27   1.2014    877.95    -0.00    2476.88     0.02
    28   1.2016    874.29     0.00    2477.16     0.05
    29   1.2046    783.20    -0.09    2482.99     0.06
    30   1.2101    616.73     0.00    2493.28     0.03
    31   1.2805  -1393.82     0.02    2596.72     0.00
    32   1.4696  -3146.71     0.01    2689.18     0.00
    33   1.5297  -2147.90     0.09    2708.03    -0.01
    34   2.1653   7099.78    -0.00    4330.08    -0.06
    35   2.1654   7098.37     0.02    4330.25    -0.01
    36   2.1654   7096.26    -0.05    4330.46     0.02
    37   2.1655   7094.99     0.08    4330.50    -0.07
    38   2.1656   7091.26     0.03    4330.88    -0.00
    39   2.1761   6785.05     0.12    4354.88    -0.05
    40   2.1763   6779.50    -0.00    4355.35    -0.02
    41   2.1792   6694.38    -0.01    4361.80     0.04
    42   2.1794   6688.80    -0.03    4362.22     0.03
    43   2.3269   2675.07    -0.06    4551.80    -0.02

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.

14UX228    quality flag:3

Type:           4:3E      4:3E      4:3E
Type:          8:6II     8:6II     8:6II

axisobj        36.596    36.614    36.577
ecceobj         0.166     0.167     0.165
incobj         20.607    20.607    20.607
qmin           27.770    27.764    27.841
qmax           45.502    45.622    45.470
amean          36.475    36.475    36.475
amin           36.132    36.133    36.112
amax           36.873    36.882    36.890
emean           0.199     0.199     0.198
emin            0.157     0.156     0.156
emax            0.236     0.238     0.235
imean          19.337    19.353    19.323
imin           17.870    17.892    17.848
imax           20.638    20.661    20.674
excite_mean     0.387     0.387     0.386
fracstop        1.000     1.000     1.000
cjmean          2.861     2.860     2.862

libcent 0       180.6     177.9     179.4
libamp  0        58.9      58.3      71.5
libcent 1       180.5     184.5     181.1
libamp  1       152.2     150.7     175.0
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       269.9     270.0     269.7
kozaiamp         30.5      30.9      31.9