Orbit Fit and Astrometric record for 14UJ228

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: 14UJ228   
# Created Tue Dec  7 02:12:53 2021
# Orbit generated from Bernstein formalism
# Fitting     32 observations of     32
# Arc:   2.33y
# First observation: 2013/08/09
#  Last observation: 2015/12/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000090   0.024190   0.000005  -0.005800   0.024726   0.000000
# Chi-squared of fit:     7.76 DOF:     58 RMS:  0.09
# Min/Max residuals:    -0.19    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.460816E-05  2.396058E-02 -4.565309E-06 -5.742313E-03  2.459584E-02 -1.521823E-03
# Covariance matrix:
  1.8783E-13 -1.1436E-14  9.1620E-15 -4.6927E-14  1.3935E-13  5.0024E-12
 -1.1436E-14  5.0002E-13  4.0931E-14 -1.8897E-13  3.6922E-13  2.0115E-11
  9.1620E-15  4.0931E-14  1.4476E-13 -1.3912E-13  3.7250E-14  2.4462E-12
 -4.6927E-14 -1.8897E-13 -1.3912E-13  2.4647E-13 -1.8021E-13 -1.1059E-11
  1.3935E-13  3.6922E-13  3.7250E-14 -1.8021E-13  4.3689E-13  1.9195E-11
  5.0024E-12  2.0115E-11  2.4462E-12 -1.1059E-11  1.9195E-11  1.1768E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.660145   27.969378    0.961345    0.020938   -0.326815  2456514.003748
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          303.98198 +/-     0.229
Argument of Peri:      230.70145 +/-     0.369
Long of Asc Node:      221.51226 +/-     0.001
Inclination:            13.87085 +/-     0.001
Eccentricity:         0.09860094 +/-    0.0013
Semi-Major Axis:     43.05830995 +/-    0.0104
Time of Perihelion: 2472569.1536 +/-      65.4
Perihelion:          38.81271993 +/-    0.0569
Aphelion:            47.30389997 +/-    0.0573
Period (y)              282.5489 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.57493573 +/-    0.0010
Ecliptic Y           18.33691680 +/-    0.0005
Ecliptic Z            2.59534029 +/-    0.0001
Ecliptic XDOT        -0.00137038 +/-    0.0000
Ecliptic YDOT         0.00229458 +/-    0.0000
Ecliptic ZDOT        -0.00064857 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.99639292 +/-    0.0009
Geocenter to KBO     40.65727490 +/-    0.0011
# Hcoef:  8.36

The following table shows the complete astrometric record for 14UJ228. 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 (14UJ228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.50297  01 38 30.353  +14 10 00.81  24.4r 14UJ228   568  C~2SDf      
2013 08  09.54639  01 38 30.303  +14 10 00.34  24.4r 14UJ228   568  C~2SDf      
2013 09  02.42113  01 37 42.004  +14 06 04.20  24.2r 14UJ228   568  C~2SDf      
2013 09  02.46447  01 37 41.865  +14 06 03.48  24.6r 14UJ228   568  C~2SDf      
2013 09  03.44044  01 37 38.955  +14 05 47.81  24.6r 14UJ228   568  C~2SDf      
2013 09  03.48706  01 37 38.816  +14 05 47.09  25.1r 14UJ228   568  C~2SDf      
2013 10  08.49991  01 35 19.297  +13 52 10.51  24.4r 14UJ228   568  C~2SDf      
2013 10  30.49423  01 33 36.014  +13 41 03.03  23.8r 14UJ228   568  C~2SDf      
2013 11  01.49532  01 33 26.829  +13 40 00.63  24.0r 14UJ228   568  C~2SDf      
2013 11  28.26999  01 31 39.054  +13 26 54.87  24.2r 14UJ228   568  C~2SDf      
2013 12  04.39045  01 31 20.168  +13 24 19.43  24.6r 14UJ228   568  C~2SDf      
2014 01  03.31330  01 30 32.535  +13 15 26.33  24.6r 14UJ228   568  C~2SDf      
2014 07  26.51805  01 44 20.876  +14 21 08.52  24.5r 14UJ228   568  C~2SDf      
2014 07  26.56107  01 44 20.895  +14 21 08.62  24.8r 14UJ228   568  C~2SDf      
2014 07  26.60436  01 44 20.901  +14 21 08.77  24.6r 14UJ228   568  C~2SDf      
2014 08  24.45388  01 43 55.119  +14 19 29.41  24.4r 14UJ228   568  C~2SDf      
2014 08  24.52781  01 43 54.949  +14 19 28.70  24.7r 14UJ228   568  C~2SDf      
2014 08  30.43216  01 43 40.854  +14 18 15.29  24.1r 14UJ228   568  C~2SDf      
2014 08  30.54047  01 43 40.556  +14 18 13.92  24.9r 14UJ228   568  C~2SDf      
2014 09  18.45910  01 42 38.524  +14 12 29.44  24.4r 14UJ228   568  C~2SDf      
2014 09  18.50183  01 42 38.360  +14 12 28.49  24.5r 14UJ228   568  C~2SDf      
2014 09  23.50010  01 42 18.399  +14 10 32.96  24.4r 14UJ228   568  C~2SDf      
2014 10  22.28248  01 40 07.360  +13 57 10.58  24.1r 14UJ228   568  C~2SDf      
2014 10  22.32723  01 40 07.149  +13 57 09.32  24.3r 14UJ228   568  C~2SDf      
2014 10  22.37167  01 40 06.922  +13 57 07.91  24.6r 14UJ228   568  C~2SDf      
2014 10  23.46633  01 40 01.705  +13 56 34.38  24.2r 14UJ228   568  C~2SDf      
2014 10  25.48228  01 39 52.146  +13 55 32.75  24.4r 14UJ228   568  C~2SDf      
2014 11  20.21348  01 37 58.420  +13 42 35.98  24.5r 14UJ228   568  C~2SDf      
2014 11  20.35396  01 37 57.867  +13 42 31.93  24.5r 14UJ228   568  C~2SDf      
2014 11  21.25141  01 37 54.385  +13 42 06.26  24.1r 14UJ228   568  C~2SDf      
2015 02  18.26839  01 37 39.845  +13 28 42.55  24.5r 14UJ228   568  C~2SDf      
2015 12  07.42022  01 42 50.547  +13 46 34.08  24.8w 14UJ228   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     0.16       0.00     0.18
     2   0.0001     -0.85     0.02      -0.17    -0.10
     3   0.0655   -741.21    -0.03      34.61    -0.06
     4   0.0656   -743.36    -0.15      34.67    -0.05
     5   0.0683   -788.49    -0.01      35.45    -0.05
     6   0.0684   -790.64     0.08      35.51    -0.05
     7   0.1643  -2979.54     0.05      14.93    -0.11
     8   0.2245  -4624.70     0.03     -55.00     0.28
     9   0.2300  -4772.21    -0.09     -63.89     0.13
    10   0.3033  -6524.00    -0.02    -215.99    -0.02
    11   0.3200  -6837.80     0.13    -258.77    -0.03
    12   0.4019  -7681.91    -0.10    -497.30    -0.09
    13   0.9610   4996.34     0.01   -1208.68     0.03
    14   0.9611   4996.64     0.03   -1208.68    -0.07
    15   0.9613   4996.77    -0.10   -1208.57    -0.06
    16   1.0402   4611.07     0.07   -1167.71    -0.10
    17   1.0405   4608.51     0.03   -1167.49     0.01
    18   1.0566   4390.84     0.06   -1162.91    -0.06
    19   1.0569   4386.30     0.03   -1162.64     0.08
    20   1.1087   3420.56    -0.11   -1161.71     0.02
    21   1.1088   3417.99    -0.05   -1161.74    -0.01
    22   1.1225   3105.51    -0.01   -1165.55     0.05
    23   1.2013   1037.59    -0.01   -1228.47     0.01
    24   1.2014   1034.27     0.09   -1228.53     0.07
    25   1.2016   1030.68    -0.09   -1228.66     0.08
    26   1.2046    947.75    -0.19   -1232.53    -0.01
    27   1.2101    795.71    -0.02   -1239.77     0.07
    28   1.2805  -1029.69    -0.03   -1364.36     0.08
    29   1.2809  -1038.67     0.06   -1365.21    -0.02
    30   1.2834  -1095.27    -0.06   -1370.71    -0.15
    31   1.5271  -1584.63     0.14   -2042.70    -0.12
    32   2.3269   3026.90     0.06   -2676.86     0.04

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.

14UJ228    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.263    43.286    43.242
ecceobj         0.098     0.101     0.095
incobj         13.849    13.849    13.849
qmin           37.957    37.837    38.012
qmax           48.308    48.422    48.115
amean          42.971    42.988    42.945
amin           42.625    42.647    42.610
amax           43.333    43.370    43.325
emean           0.099     0.102     0.096
emin            0.086     0.089     0.082
emax            0.115     0.117     0.111
imean          15.078    15.083    15.077
imin           14.460    14.477    14.469
imax           15.687    15.681    15.674
excite_mean     0.278     0.280     0.277
fracstop        1.000     1.000     1.000
cjmean          2.996     2.995     2.996

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       181.1     181.4     181.3
kozaiamp        180.0     179.9     180.0