Orbit Fit and Astrometric record for 04UD10

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: 04UD10    
# Created Wed Feb 19 02:09:27 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   23 observations of   23
# Arc:  14.07y
# First observation: 2004/10/18
#  Last observation: 2018/11/14
# Chi-squared of fit:    20.62 DOF:   40 RMS:  0.17
# Min/Max residuals:    -0.34    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.541683E-05  2.152344E-02  1.249471E-06  1.307903E-03  2.314265E-02  6.526723E-04
# Covariance matrix:
  3.7628E-13 -1.1896E-13  5.3012E-15 -6.0798E-15  4.2170E-13 -3.4835E-13
 -1.1896E-13  7.1819E-14 -3.5553E-15  4.1197E-15 -1.2023E-13  2.3629E-13
  5.3012E-15 -3.5553E-15  1.1198E-13 -1.0641E-14  5.5446E-15 -1.2121E-14
 -6.0798E-15  4.1197E-15 -1.0641E-14  2.4636E-15 -6.2700E-15  1.4059E-14
  4.2170E-13 -1.2023E-13  5.5446E-15 -6.2700E-15  7.8369E-13 -3.5872E-13
 -3.4835E-13  2.3629E-13 -1.2121E-14  1.4059E-14 -3.5872E-13  8.0645E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.407694   48.701535    0.399835   -0.006428   -0.916193  2453296.879543
# Heliocentric elements and errors
Epoch:              2453296.5000  =  2004/10/18
Mean Anomaly:          148.07001 +/-     0.150
Argument of Peri:      203.23121 +/-     0.139
Long of Asc Node:       54.72509 +/-     0.000
Inclination:             3.50179 +/-     0.000
Eccentricity:         0.03684437 +/-    0.0001
Semi-Major Axis:     42.77305091 +/-    0.0068
Time of Perihelion: 2411270.4679 +/-      43.6
Perihelion:          41.19710500 +/-    0.0077
Aphelion:            44.34899683 +/-    0.0082
Period (y)              279.7458 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.41760794 +/-    0.0011
Ecliptic Y           32.88799482 +/-    0.0012
Ecliptic Z           -0.30740451 +/-    0.0000
Ecliptic XDOT        -0.00186269 +/-    0.0000
Ecliptic YDOT         0.00173220 +/-    0.0000
Ecliptic ZDOT         0.00015427 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.12606146 +/-    0.0012
Geocenter to KBO     43.21028551 +/-    0.0017
# Hcoef:  6.66

The following table shows the complete astrometric record for 04UD10. 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 (04UD10) followed by the observatory code and reference code for the source of the astrometry.

2004 10  18.37880  03 05 26.77   +16 59 46.0   22.5R 04UD10    695  Cm0615      
2004 10  18.44854  03 05 26.48   +16 59 45.0         04UD10    695  Cm0615      
2004 11  09.23799  03 03 46.27   +16 53 06.8   22.1R 04UD10    695  Cm0615      
2004 11  09.33027  03 03 45.84   +16 53 05.3         04UD10    695  Cm0615      
2004 11  10.31259  03 03 41.16   +16 52 46.5         04UD10    695  Cm0615      
2004 12  11.23579  03 01 22.64   +16 43 39.7   23.1R 04UD10    688  Cm1768      
2004 12  11.30075  03 01 22.41   +16 43 38.3         04UD10    688  Cm1768      
2005 11  02.29049  03 09 12.97   +17 19 52.7   22.5R 04UD10    695  Cp9905      
2005 11  02.35097  03 09 12.68   +17 19 51.6         04UD10    695  Cp9905      
2005 11  02.40350  03 09 12.42   +17 19 50.6         04UD10    695  Cp9905      
2005 12  02.20953  03 06 52.76   +17 10 51.6   22.5R 04UD10    695  Cp9905      
2005 12  02.26218  03 06 52.53   +17 10 50.5         04UD10    695  Cp9905      
2005 12  02.31468  03 06 52.28   +17 10 49.8         04UD10    695  Cp9905      
2007 11  09.26335  03 18 30.24   +18 05 35.0         04UD10    695  Cy4017      
2007 11  09.34902  03 18 29.82   +18 05 33.6         04UD10    695  Cy4017      
2014 09  26.36493  03 56 10.61   +20 44 10.3   23.6R 04UD10    695  C~1LJN      
2014 09  26.41029  03 56 10.51   +20 44 10.1         04UD10    695  C~1LJN      
2014 09  26.45485  03 56 10.41   +20 44 10.0         04UD10    695  C~1LJN      
2014 10  22.35632  03 54 47.20   +20 40 32.7   22.9R 04UD10    G37  C~1BxG      
2014 10  22.44942  03 54 46.83   +20 40 31.7         04UD10    G37  C~1BxG      
2018 11  14.348480 04 13 22.77   +21 50 01.9   23.0G 04UD10    705  C~2r9o      
2018 11  14.390820 04 13 22.56   +21 50 01.7   23.0G 04UD10    705  C~2r9o      
2018 11  14.456670 04 13 22.22   +21 50 00.8   22.9G 04UD10    705  C~2r9o      

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    -0.13       0.00    -0.11
  2   0.0002      0.00     0.10       0.00     0.09
  3   0.0598      0.00    -0.01       0.00    -0.07
  4   0.0601      0.00     0.24       0.00     0.17
  5   0.0628      0.00     0.20       0.00    -0.05
  6   0.1475      0.00    -0.29       0.00     0.06
  7   0.1476      0.00     0.15       0.00    -0.34
  8   1.0401      0.00    -0.04       0.00     0.00
  9   1.0403      0.00    -0.06       0.00     0.00
 10   1.0405      0.00    -0.20       0.00    -0.04
 11   1.1221      0.00    -0.10       0.00     0.27
 12   1.1222      0.00    -0.01       0.00     0.06
 13   1.1223      0.00    -0.24       0.00     0.26
 14   3.0579      0.00     0.36       0.00    -0.29
 15   3.0581      0.00     0.32       0.00    -0.19
 16   9.9384      0.00    -0.16       0.00     0.02
 17   9.9385      0.00    -0.09       0.00     0.06
 18   9.9386      0.00    -0.05       0.00     0.20
 19  10.0095      0.00    -0.18       0.00     0.06
 20  10.0098      0.00     0.05       0.00     0.09
 21  14.0725      0.00     0.17       0.00    -0.22
 22  14.0726      0.00     0.15       0.00     0.06
 23  14.0728      0.00    -0.09       0.00    -0.08

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.

04UD10    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.204    43.204    43.204
ecceobj         0.031     0.031     0.031
incobj          3.486     3.486     3.486
qmin           40.835    40.835    40.835
qmax           45.160    45.160    45.160
amean          42.901    42.901    42.901
amin           42.566    42.567    42.566
amax           43.243    43.243    43.242
emean           0.026     0.026     0.026
emin            0.005     0.004     0.005
emax            0.045     0.045     0.045
imean           1.869     1.869     1.869
imin            0.865     0.864     0.865
imax            2.843     2.843     2.843
excite_mean     0.042     0.042     0.042
fracstop        1.000     1.000     1.000
cjmean          3.086     3.086     3.086

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       205.4     205.3     205.3
kozaiamp        180.0     180.0     179.9