Orbit Fit and Astrometric record for 03UK293

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: 03UK293   
# Created Sun Dec  5 02:09:47 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     44 observations of     44
# Arc:  14.15y
# First observation: 2003/10/23
#  Last observation: 2017/12/16
# Chi-squared of fit:     5.71 DOF:     82 RMS:  0.06
# Min/Max residuals:    -0.23    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.529312E-05  2.428331E-02 -1.037744E-07 -9.557596E-04  2.469593E-02 -1.690300E-03
# Covariance matrix:
  3.6468E-13 -4.8327E-14 -3.4272E-16  7.7584E-16 -1.7068E-15 -6.1415E-14
 -4.8327E-14  6.6852E-14  1.1733E-15 -2.5750E-15  5.0305E-14  1.9922E-13
 -3.4272E-16  1.1733E-15  3.5659E-13 -2.8884E-14  9.9728E-16  3.6288E-15
  7.7584E-16 -2.5750E-15 -2.8884E-14  2.6494E-15 -2.0428E-15 -7.9751E-15
 -1.7068E-15  5.0305E-14  9.9728E-16 -2.0428E-15  1.2272E-13  1.4949E-13
 -6.1415E-14  1.9922E-13  3.6288E-15 -7.9751E-15  1.4949E-13  6.1766E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.061411   33.808593    0.082122   -0.035678   -0.992189  2452935.713383
# Heliocentric elements and errors
Epoch:              2452936.5000  =  2003/10/24
Mean Anomaly:          290.16565 +/-     0.021
Argument of Peri:      300.08305 +/-     0.026
Long of Asc Node:      172.02571 +/-     0.002
Inclination:             3.02451 +/-     0.000
Eccentricity:         0.07695601 +/-    0.0000
Semi-Major Axis:     42.37871107 +/-    0.0021
Time of Perihelion: 2472483.7928 +/-       8.6
Perihelion:          39.11741473 +/-    0.0025
Aphelion:            45.64000742 +/-    0.0027
Period (y)              275.8861 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.49066146 +/-    0.0005
Ecliptic Y           23.00424506 +/-    0.0003
Ecliptic Z           -1.45653080 +/-    0.0000
Ecliptic XDOT        -0.00166144 +/-    0.0000
Ecliptic YDOT         0.00212452 +/-    0.0000
Ecliptic ZDOT        -0.00009899 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.48404952 +/-    0.0004
Geocenter to KBO     40.49257188 +/-    0.0006
# Hcoef:  7.30

The following table shows the complete astrometric record for 03UK293. 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 (03UK293) followed by the observatory code and reference code for the source of the astrometry.

2003 10  23.21264  02 09 06.67   +10 50 48.9   22.5R 03UK293   695  Cj8804      
2003 10  23.30694  02 09 06.23   +10 50 46.6         03UK293   695  Cj8804      
2003 11  20.15834  02 06 57.65   +10 39 28.5   22.5R 03UK293   695  Cj8804      
2003 11  20.24267  02 06 57.29   +10 39 26.7         03UK293   695  Cj8804      
2014 11  17.31723  03 08 39.902  +14 56 16.20  23.5r 03UK293   568  C~2niU      
2014 11  17.42609  03 08 39.358  +14 56 13.94  23.5r 03UK293   568  C~2niU      
2014 11  17.54029  03 08 38.775  +14 56 11.55  23.2r 03UK293   568  C~2niU      
2014 11  19.33914  03 08 29.793  +14 55 35.15  23.4r 03UK293   568  C~2niU      
2014 11  23.44182  03 08 09.437  +14 54 13.60  23.3r 03UK293   568  C~2niU      
2015 08  11.60150  03 19 00.776  +15 39 29.74  24.0w 03UK293   568  C~2niU      
2015 09  06.61481  03 19 00.633  +15 37 36.97  23.5w 03UK293   568  C~2niU      
2015 09  12.50491  03 18 51.643  +15 36 38.15  23.7w 03UK293   568  C~2niU      
2015 10  07.42821  03 17 40.798  +15 30 37.02  23.5w 03UK293   568  C~2niU      
2015 10  08.44001  03 17 36.942  +15 30 19.18  23.5w 03UK293   568  C~2niU      
2015 10  08.49908  03 17 36.708  +15 30 18.12  23.6w 03UK293   568  C~2niU      
2015 11  07.34843  03 15 20.481  +15 20 30.36  23.2r 03UK293   568  C~2niU      
2015 11  07.39058  03 15 20.267  +15 20 29.50  23.4r 03UK293   568  C~2niU      
2015 11  07.43274  03 15 20.051  +15 20 28.64  23.4r 03UK293   568  C~2niU      
2015 11  10.51713  03 15 04.478  +15 19 25.38  23.3w 03UK293   568  C~2niU      
2015 11  10.54648  03 15 04.327  +15 19 24.79  23.4w 03UK293   568  C~2niU      
2015 11  17.36382  03 14 29.805  +15 17 06.62  23.4w 03UK293   568  C~2niU      
2015 11  17.41043  03 14 29.568  +15 17 05.66  23.3w 03UK293   568  C~2niU      
2015 12  06.37266  03 12 57.162  +15 11 11.99  23.6w 03UK293   568  C~2niU      
2015 12  06.52203  03 12 56.473  +15 11 09.55  23.6w 03UK293   568  C~2niU      
2015 12  13.30706  03 12 26.535  +15 09 20.84  23.7w 03UK293   568  C~2niU      
2015 12  13.36559  03 12 26.286  +15 09 20.01  23.9w 03UK293   568  C~2niU      
2016 01  01.36029  03 11 17.581  +15 05 30.11  23.6w 03UK293   568  C~2niU      
2016 01  07.30705  03 11 01.728  +15 04 44.38  23.6w 03UK293   568  C~2niU      
2016 02  04.34036  03 10 31.730  +15 04 22.17  23.7w 03UK293   568  C~2niU      
2016 02  11.22942  03 10 36.435  +15 05 06.87  23.8w 03UK293   568  C~2niU      
2016 09  07.56785  03 24 45.361  +15 56 53.59        03UK293   568  C~2niU      
2016 09  27.50655  03 24 01.774  +15 52 53.87  23.5w 03UK293   568  C~2niU      
2016 10  10.44325  03 23 16.365  +15 49 23.12  23.6w 03UK293   568  C~2niU      
2016 10  10.50202  03 23 16.125  +15 49 22.11  24.0w 03UK293   568  C~2niU      
2016 10  10.51973  03 23 16.049  +15 49 21.82  23.8w 03UK293   568  C~2niU      
2016 11  02.51417  03 21 31.905  +15 42 02.29  23.8w 03UK293   568  C~2niU      
2016 11  04.38927  03 21 22.582  +15 41 24.80  23.7w 03UK293   568  C~2niU      
2016 12  24.31885  03 17 28.644  +15 27 06.63  23.6w 03UK293   568  C~2niU      
2016 12  24.33677  03 17 28.580  +15 27 06.46  23.6w 03UK293   568  C~2niU      
2017 01  02.42106  03 16 58.957  +15 25 36.20  23.6w 03UK293   568  C~2niU      
2017 01  02.43952  03 16 58.902  +15 25 36.04  23.6w 03UK293   568  C~2niU      
2017 01  26.33541  03 16 15.625  +15 24 08.56  23.6w 03UK293   568  C~2niU      
2017 01  26.34976  03 16 15.617  +15 24 08.58  23.6w 03UK293   568  C~2niU      
2017 12  16.35926  03 23 51.212  +15 48 42.63  23.7w 03UK293   568  C~2niU      

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    -0.08
     2   0.0003      0.00     0.28       0.00     0.03
     3   0.0765      0.00    -0.23       0.00     0.02
     4   0.0767      0.00    -0.13       0.00     0.06
     5  11.0694      0.00    -0.13       0.00     0.06
     6  11.0697      0.00     0.04       0.00     0.01
     7  11.0700      0.00     0.02       0.00    -0.03
     8  11.0750      0.00     0.02       0.00    -0.01
     9  11.0862      0.00    -0.06       0.00     0.02
    10  11.8012      0.00     0.11       0.00    -0.04
    11  11.8724      0.00    -0.15       0.00     0.07
    12  11.8885      0.00     0.03       0.00    -0.03
    13  11.9568      0.00    -0.02       0.00    -0.01
    14  11.9596      0.00    -0.00       0.00     0.00
    15  11.9597      0.00    -0.03       0.00    -0.01
    16  12.0414      0.00     0.05       0.00    -0.09
    17  12.0416      0.00     0.07       0.00    -0.09
    18  12.0417      0.00     0.07       0.00    -0.09
    19  12.0501      0.00     0.02       0.00    -0.05
    20  12.0502      0.00     0.01       0.00    -0.03
    21  12.0689      0.00     0.01       0.00    -0.02
    22  12.0690      0.00     0.05       0.00    -0.05
    23  12.1209      0.00    -0.01       0.00     0.00
    24  12.1213      0.00     0.08       0.00     0.11
    25  12.1399      0.00    -0.06       0.00    -0.07
    26  12.1400      0.00     0.01       0.00    -0.01
    27  12.1921      0.00     0.01       0.00    -0.04
    28  12.2083      0.00    -0.01       0.00     0.02
    29  12.2851      0.00     0.06       0.00    -0.01
    30  12.3039      0.00    -0.01       0.00     0.02
    31  12.8771      0.00    -0.01       0.00     0.02
    32  12.9317      0.00    -0.01       0.00     0.00
    33  12.9671      0.00     0.02       0.00     0.01
    34  12.9673      0.00    -0.02       0.00     0.03
    35  12.9673      0.00    -0.09       0.00     0.05
    36  13.0303      0.00     0.01       0.00     0.01
    37  13.0354      0.00     0.02       0.00     0.08
    38  13.1721      0.00     0.00       0.00     0.05
    39  13.1721      0.00     0.03       0.00     0.08
    40  13.1970      0.00    -0.00       0.00     0.02
    41  13.1971      0.00    -0.01       0.00     0.02
    42  13.2625      0.00     0.00       0.00    -0.01
    43  13.2625      0.00     0.04       0.00    -0.01
    44  14.1496      0.00     0.03       0.00     0.05

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.

03UK293    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.757    42.757    42.757
ecceobj         0.077     0.077     0.077
incobj          3.014     3.014     3.014
qmin           38.702    38.635    38.701
qmax           46.516    46.425    46.468
amean          42.408    42.408    42.408
amin           42.057    42.063    42.055
amax           42.800    42.782    42.770
emean           0.044     0.044     0.044
emin            0.011     0.012     0.012
emax            0.087     0.086     0.087
imean           3.922     3.923     3.921
imin            2.602     2.600     2.600
imax            5.109     5.108     5.112
excite_mean     0.084     0.084     0.084
fracstop        1.000     1.000     1.000
cjmean          3.075     3.075     3.075

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       177.5     177.6     177.3
kozaiamp        180.0     179.9     180.0