Orbit Fit and Astrometric record for 14UO228

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: 14UO228   
# Created Tue Nov 30 02:12:52 2021
# Orbit generated from Bernstein formalism
# Fitting     34 observations of     35
# Arc:   4.06y
# First observation: 2013/08/09
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000110   0.030437   0.000015   0.003427   0.028043   0.000000
# Chi-squared of fit:    12.41 DOF:     62 RMS:  0.11
# Min/Max residuals:    -0.29    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.649672E-05  3.032665E-02  1.304143E-06  3.423564E-03  2.805568E-02  3.388599E-03
# Covariance matrix:
  1.8383E-13 -1.1173E-13  2.8905E-15 -7.9542E-15  6.6638E-14 -5.8975E-13
 -1.1173E-13  2.1685E-13 -1.1065E-14  2.2826E-14  4.5564E-14  1.7302E-12
  2.8905E-15 -1.1065E-14  8.7426E-14 -4.4592E-14 -4.6448E-15 -1.1154E-13
 -7.9542E-15  2.2826E-14 -4.4592E-14  4.5277E-14  7.1824E-15  2.2753E-13
  6.6638E-14  4.5564E-14 -4.6448E-15  7.1824E-15  1.1376E-13  5.6027E-13
 -5.8975E-13  1.7302E-12 -1.1154E-13  2.2753E-13  5.6027E-13  1.7263E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.179463   27.774202    0.960174    0.012617   -0.330654  2456514.012218
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:           36.54131 +/-     0.029
Argument of Peri:      332.29929 +/-     0.042
Long of Asc Node:        7.91878 +/-     0.001
Inclination:             6.83487 +/-     0.000
Eccentricity:         0.12383112 +/-    0.0001
Semi-Major Axis:     39.68350334 +/-    0.0029
Time of Perihelion: 2447242.3069 +/-       7.2
Perihelion:          34.76945058 +/-    0.0056
Aphelion:            44.59755610 +/-    0.0059
Period (y)              249.9903 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.25397410 +/-    0.0004
Ecliptic Y           15.90505555 +/-    0.0002
Ecliptic Z            1.35559147 +/-    0.0000
Ecliptic XDOT        -0.00110417 +/-    0.0000
Ecliptic YDOT         0.00276568 +/-    0.0000
Ecliptic ZDOT         0.00034657 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.98787665 +/-    0.0004
Geocenter to KBO     35.64340195 +/-    0.0004
# Hcoef:  9.00

The following table shows the complete astrometric record for 14UO228. 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 (14UO228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.51144  01 39 57.611  +12 42 57.24  24.4r 14UO228   568  C~2SDg      
2013 08  09.55415  01 39 57.557  +12 42 56.98  24.4r 14UO228   568  C~2SDg      
2013 09  02.42913  01 39 02.787  +12 39 59.30        14UO228   568  C~2SDg      
2013 09  02.47226  01 39 02.631  +12 39 58.12  24.9r 14UO228   568  C~2SDg      
2013 09  03.44820  01 38 59.333  +12 39 44.36  24.7r 14UO228   568  C~2SDg      
2013 09  03.49483  01 38 59.180  +12 39 43.75  24.5r 14UO228   568  C~2SDg      
2013 10  08.49603  01 36 20.257  +12 27 01.39  24.9r 14UO228   568  C~2SDg      
2013 10  30.41166  01 34 22.696  +12 16 34.15  25.1r 14UO228   568  C~2SDg      
2013 10  30.49029  01 34 22.270  +12 16 31.71  23.8r 14UO228   568  C~2SDg      
2013 11  28.26487  01 32 08.454  +12 03 47.82  24.6r 14UO228   568  C~2SDg      
2013 12  04.38623  01 31 46.776  +12 01 37.22  24.7r 14UO228   568  C~2SDg      
2013 12  29.24699  01 30 54.505  +11 55 56.14  24.4r 14UO228   568  C~2SDg      
2013 12  30.33812  01 30 53.686  +11 55 48.86  24.3r 14UO228   568  C~2SDg      
2013 12  30.34280  01 30 53.662  +11 55 48.88  24.3r 14UO228   568  C~2SDg      
2014 01  03.24172  01 30 51.710  +11 55 29.74  24.6r 14UO228   568  C~2SDg      
2014 07  26.52587  01 46 22.524  +13 29 57.92  24.8r 14UO228   568  C~2SDg      
2014 07  26.56909  01 46 22.552  +13 29 58.21  25.2r 14UO228   568  C~2SDg      
2014 07  26.61244  01 46 22.555  +13 29 58.70  24.6r 14UO228   568  C~2SDg      
2014 08  24.53579  01 45 53.731  +13 30 15.31  24.2r 14UO228   568  C~2SDg      
2014 08  30.44167  01 45 37.824  +13 29 20.14  25.0r 14UO228   568  C~2SDg      
2014 08  30.54834  01 45 37.511  +13 29 19.19  24.3r 14UO228   568  C~2SDg      
2014 09  18.46688  01 44 27.270  +13 24 23.53  24.6r 14UO228   568  C~2SDg      
2014 09  18.50960  01 44 27.082  +13 24 22.70  24.8r 14UO228   568  C~2SDg      
2014 09  23.50788  01 44 04.416  +13 22 37.96  24.8r 14UO228   568  C~2SDg      
2014 10  22.29094  01 41 35.214  +13 10 11.22  24.3r 14UO228   568  C~2SDg      
2014 10  22.33551  01 41 34.997  +13 10 09.75  24.3r 14UO228   568  C~2SDg      
2014 10  22.38043  01 41 34.739  +13 10 08.61  24.7r 14UO228   568  C~2SDg      
2014 10  23.47641  01 41 28.785  +13 09 37.39  24.0r 14UO228   568  C~2SDg      
2014 10  25.49236  01 41 17.863  +13 08 39.52  24.3r 14UO228   568  C~2SDg      
2014 11  20.34891  01 39 07.330  +12 56 39.53  24.8r 14UO228   568  C~2SDg      
2015 02  18.23954  01 38 41.523  +12 51 18.41  24.4r 14UO228   568  C~2SDg      
2015 12  07.42022  01 44 25.531  +13 38 49.71  24.6w 14UO228   568  C~2SDg      
2016 09  27.46659  01 56 37.965  +14 56 36.07  24.4w 14UO228   568  C~2SDg      
2017 08  25.57304  02 05 02.023  +15 49 56.22  24.6w 14UO228   568  C~2SDg      
2017 08  30.59490  02 04 50.313  +15 49 27.87  25.1w 14UO228   568  C~2SDg      

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     0.13
     2   0.0001     -0.83     0.02       0.04    -0.09
     3   0.0655   -812.38 (   0.03)    123.86 (   0.53)
     4   0.0656   -814.94    -0.29     123.58     0.02
     5   0.0683   -864.91     0.02     128.21     0.02
     6   0.0684   -867.22     0.20     128.45     0.01
     7   0.1642  -3312.38     0.20     262.34    -0.03
     8   0.2242  -5145.79    -0.02     306.86     0.12
     9   0.2244  -5152.50    -0.13     306.87    -0.00
    10   0.3032  -7259.99     0.04     315.69    -0.04
    11   0.3200  -7604.19    -0.13     311.20    -0.11
    12   0.3881  -8444.16    -0.12     276.56     0.23
    13   0.3910  -8458.04     0.26     274.23    -0.16
    14   0.3911  -8458.36    -0.00     274.37    -0.00
    15   0.4017  -8492.10    -0.09     267.14     0.08
    16   0.9610   6262.17     0.02     621.70     0.06
    17   0.9611   6262.65     0.12     621.83    -0.09
    18   0.9613   6262.87    -0.04     622.27     0.07
    19   1.0404   5875.42    -0.11     787.14    -0.00
    20   1.0566   5638.76    -0.19     818.04    -0.12
    21   1.0569   5634.15     0.06     818.77     0.00
    22   1.1087   4570.66    -0.02     907.39    -0.03
    23   1.1088   4567.80     0.03     907.59    -0.03
    24   1.1225   4221.29     0.00     927.76    -0.01
    25   1.2013   1919.55    -0.20    1010.67     0.10
    26   1.2014   1916.06     0.11    1010.44    -0.25
    27   1.2016   1912.14     0.02    1010.73    -0.06
    28   1.2046   1819.75     0.06    1012.84     0.05
    29   1.2101   1650.07    -0.05    1016.19     0.03
    30   1.2809   -388.76     0.00    1032.40    -0.07
    31   1.5270   -856.71     0.01     869.52     0.20
    32   2.3269   4856.11     0.09    1725.92    -0.07
    33   3.1347  16497.31     0.04    2366.53    -0.07
    34   4.0440  24521.30    -0.12    2904.94     0.08
    35   4.0577  24350.24     0.10    2935.02     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.

14UO228    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.898    39.907    39.888
ecceobj         0.129     0.130     0.129
incobj          6.816     6.816     6.816
qmin           34.094    34.023    34.118
qmax           45.445    45.553    45.449
amean          39.459    39.459    39.459
amin           38.995    38.991    39.007
amax           39.961    39.986    39.947
emean           0.117     0.118     0.116
emin            0.096     0.096     0.097
emax            0.138     0.140     0.138
imean           6.535     6.501     6.577
imin            5.302     5.119     5.484
imax            7.418     7.525     7.438
excite_mean     0.164     0.164     0.164
fracstop        1.000     1.000     1.000
cjmean          3.021     3.021     3.021

libcent 0       180.1     180.8     180.9
libamp  0       108.2     111.1     104.7
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       179.1     183.2     181.9
kozaiamp        179.9     180.0     179.9