Orbit Fit and Astrometric record for 14UG228

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: 14UG228   
# Created Mon Dec  6 02:12:47 2021
# Orbit generated from Bernstein formalism
# Fitting     42 observations of     42
# Arc:   4.06y
# First observation: 2013/08/09
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000198   0.031515   0.000010  -0.001080   0.026701   0.000000
# Chi-squared of fit:     3.71 DOF:     78 RMS:  0.05
# Min/Max residuals:    -0.16    0.14
# Exact a, adot, b, bdot, g, gdot:
  1.805835E-05  3.111812E-02 -4.062644E-07 -1.068727E-03  2.663374E-02  9.297546E-05
# Covariance matrix:
  1.4702E-13 -7.8044E-14 -1.2313E-15  1.3009E-15  4.8315E-14 -3.9525E-13
 -7.8044E-14  1.6858E-13  1.9911E-15 -4.8394E-15  5.2189E-14  1.3614E-12
 -1.2313E-15  1.9911E-15  7.5391E-14 -3.7705E-14  9.6733E-17  2.0077E-14
  1.3009E-15 -4.8394E-15 -3.7705E-14  3.4841E-14 -2.0577E-15 -4.9239E-14
  4.8315E-14  5.2189E-14  9.6733E-17 -2.0577E-15  8.9352E-14  5.4731E-13
 -3.9525E-13  1.3614E-12  2.0077E-14 -4.9239E-14  5.4731E-13  1.3844E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.935156   26.771029    0.954357    0.017816   -0.346874  2456513.992098
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          357.15344 +/-     0.014
Argument of Peri:      128.66785 +/-     0.029
Long of Asc Node:      262.34824 +/-     0.005
Inclination:             3.46464 +/-     0.000
Eccentricity:         0.31478471 +/-    0.0000
Semi-Major Axis:     55.25391946 +/-    0.0039
Time of Perihelion: 2457696.7079 +/-       5.9
Perihelion:          37.86083036 +/-    0.0035
Aphelion:            72.64700857 +/-    0.0056
Period (y)              410.7266 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.21749635 +/-    0.0004
Ecliptic Y           16.19716888 +/-    0.0002
Ecliptic Z            1.92261505 +/-    0.0000
Ecliptic XDOT        -0.00143351 +/-    0.0000
Ecliptic YDOT         0.00286191 +/-    0.0000
Ecliptic ZDOT        -0.00010909 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.90622357 +/-    0.0004
Geocenter to KBO     37.54635987 +/-    0.0004
# Hcoef:  7.86

The following table shows the complete astrometric record for 14UG228. 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 (14UG228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.49132  01 35 00.197  +13 03 23.98  23.7r 14UG228   568  C~2SDf      
2013 08  09.53475  01 35 00.140  +13 03 23.94  23.6r 14UG228   568  C~2SDf      
2013 09  02.40909  01 34 08.963  +12 59 59.19  23.5r 14UG228   568  C~2SDf      
2013 09  02.45277  01 34 08.823  +12 59 58.39  23.7r 14UG228   568  C~2SDf      
2013 09  03.42878  01 34 05.722  +12 59 43.68  23.7r 14UG228   568  C~2SDf      
2013 09  03.47542  01 34 05.572  +12 59 43.02  23.6r 14UG228   568  C~2SDf      
2013 10  30.40389  01 29 49.515  +12 35 51.56  23.8r 14UG228   568  C~2SDf      
2013 10  30.48253  01 29 49.128  +12 35 49.35  23.5r 14UG228   568  C~2SDf      
2013 11  01.48006  01 29 39.528  +12 34 50.12  23.6r 14UG228   568  C~2SDf      
2013 12  04.37826  01 27 28.755  +12 20 19.07  23.5r 14UG228   568  C~2SDf      
2013 12  29.23912  01 26 45.194  +12 13 55.98  23.6r 14UG228   568  C~2SDf      
2013 12  30.33025  01 26 44.654  +12 13 46.79  23.8r 14UG228   568  C~2SDf      
2014 01  02.22590  01 26 43.863  +12 13 25.71  23.9r 14UG228   568  C~2SDf      
2014 01  02.27308  01 26 43.851  +12 13 25.42  23.8r 14UG228   568  C~2SDf      
2014 01  02.35211  01 26 43.833  +12 13 24.95  23.8r 14UG228   568  C~2SDf      
2014 01  03.23161  01 26 43.794  +12 13 19.53  23.8r 14UG228   568  C~2SDf      
2014 07  26.51389  01 41 58.679  +13 37 55.77  23.6r 14UG228   568  C~2SDf      
2014 07  26.55715  01 41 58.691  +13 37 56.11  23.7r 14UG228   568  C~2SDf      
2014 07  26.60045  01 41 58.710  +13 37 56.46  23.8r 14UG228   568  C~2SDf      
2014 08  24.45000  01 41 32.513  +13 37 24.80  23.7r 14UG228   568  C~2SDf      
2014 08  24.52394  01 41 32.333  +13 37 24.11  23.6r 14UG228   568  C~2SDf      
2014 08  30.42828  01 41 17.513  +13 36 21.02  23.6r 14UG228   568  C~2SDf      
2014 08  30.53659  01 41 17.199  +13 36 19.80  23.7r 14UG228   568  C~2SDf      
2014 09  18.45522  01 40 11.738  +13 31 02.11  23.5r 14UG228   568  C~2SDf      
2014 09  18.49795  01 40 11.563  +13 31 01.20  23.7r 14UG228   568  C~2SDf      
2014 09  23.49621  01 39 50.467  +13 29 11.50  23.7r 14UG228   568  C~2SDf      
2014 10  22.27847  01 37 32.169  +13 16 20.80  23.8r 14UG228   568  C~2SDf      
2014 10  22.32309  01 37 31.946  +13 16 19.46  23.9r 14UG228   568  C~2SDf      
2014 10  22.36779  01 37 31.719  +13 16 18.13  23.6r 14UG228   568  C~2SDf      
2014 10  23.46129  01 37 26.235  +13 15 46.02  23.3r 14UG228   568  C~2SDf      
2014 11  20.20843  01 35 17.258  +13 02 29.23  23.6r 14UG228   568  C~2SDf      
2014 11  20.34891  01 35 16.669  +13 02 25.46  22.9r 14UG228   568  C~2SDf      
2014 11  21.24744  01 35 13.060  +13 02 01.65  23.4r 14UG228   568  C~2SDf      
2014 11  21.41395  01 35 12.382  +13 01 57.16  23.0r 14UG228   568  C~2SDf      
2015 01  28.25559  01 34 02.199  +12 49 30.28  23.7r 14UG228   568  C~2SDf      
2015 02  18.23954  01 35 13.065  +12 54 27.25  23.9r 14UG228   568  C~2SDf      
2015 02  18.26427  01 35 13.176  +12 54 27.84  23.6r 14UG228   568  C~2SDf      
2015 12  07.42846  01 41 16.841  +13 31 19.03  23.8w 14UG228   568  C~2SDf      
2016 11  04.38287  01 50 33.137  +14 20 15.35  23.9w 14UG228   568  C~2SDf      
2016 11  04.43686  01 50 32.868  +14 20 13.79  23.8w 14UG228   568  C~2SDf      
2017 08  25.57304  02 02 33.860  +15 19 00.92  23.7w 14UG228   568  C~2SDf      
2017 08  30.59490  02 02 23.123  +15 18 20.61  23.8w 14UG228   568  C~2SDf      

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    -0.05
     2   0.0001     -0.79     0.00       0.27     0.03
     3   0.0655   -771.83     0.03      82.59     0.07
     4   0.0656   -774.02    -0.03      82.59    -0.08
     5   0.0683   -821.59    -0.04      85.46    -0.01
     6   0.0684   -823.87     0.03      85.65     0.02
     7   0.2243  -4834.18    -0.06     130.08    -0.16
     8   0.2245  -4840.26    -0.01     130.12    -0.03
     9   0.2299  -4992.83    -0.12     126.98     0.14
    10   0.3200  -7096.43     0.03      27.16     0.07
    11   0.3881  -7832.49     0.04     -91.34    -0.06
    12   0.3911  -7843.27    -0.00     -96.93     0.00
    13   0.3990  -7861.90     0.02    -112.20     0.00
    14   0.3991  -7862.17     0.00    -112.40     0.03
    15   0.3993  -7862.59    -0.02    -112.74     0.09
    16   0.4018  -7865.14     0.08    -117.56    -0.04
    17   0.9610   6445.76     0.03    -275.09    -0.05
    18   0.9612   6446.04    -0.06    -274.83     0.01
    19   0.9613   6446.43    -0.03    -274.61     0.04
    20   1.0403   6078.20     0.12    -167.31    -0.06
    21   1.0405   6075.50     0.01    -167.01    -0.05
    22   1.0566   5851.00    -0.02    -148.43    -0.02
    23   1.0569   5846.29    -0.07    -147.93     0.09
    24   1.1087   4840.66    -0.00    -101.53     0.03
    25   1.1088   4837.95     0.04    -101.46    -0.01
    26   1.1225   4511.23     0.06     -93.07    -0.02
    27   1.2013   2350.32    -0.03     -82.91     0.08
    28   1.2015   2346.80     0.00     -82.98     0.02
    29   1.2016   2343.23     0.00     -83.02    -0.01
    30   1.2046   2256.96    -0.06     -83.95    -0.00
    31   1.2805    212.21     0.05    -141.84     0.05
    32   1.2809    202.82    -0.06    -142.22     0.04
    33   1.2834    145.03    -0.07    -145.17     0.02
    34   1.2838    134.17    -0.07    -145.75    -0.09
    35   1.4696  -1093.69     0.08    -466.70    -0.04
    36   1.5270    -20.47    -0.05    -568.36    -0.05
    37   1.5271    -18.75     0.06    -568.41     0.02
    38   2.3270   5733.45     0.02    -426.92     0.01
    39   3.2386  14369.10    -0.01    -550.05     0.05
    40   3.2387  14364.87     0.01    -550.14     0.03
    41   4.0440  25500.60    -0.01    -829.87    -0.07
    42   4.0578  25338.33     0.01    -815.32     0.01

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.

14UG228    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        55.671    55.684    55.659
ecceobj         0.320     0.320     0.320
incobj          3.467     3.467     3.467
qmin           37.032    37.041    37.056
qmax           74.160    74.162    74.050
amean          55.081    55.109    55.067
amin           54.468    54.487    54.455
amax           55.880    55.922    55.866
emean           0.313     0.314     0.313
emin            0.300     0.300     0.300
emax            0.327     0.327     0.326
imean           5.019     5.044     5.029
imin            4.423     4.524     4.451
imax            5.533     5.552     5.528
excite_mean     0.325     0.326     0.325
fracstop        1.000     1.000     1.000
cjmean          3.105     3.105     3.105

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       179.7     180.5     180.9
kozaiamp        180.0     180.0     180.0