Orbit Fit and Astrometric record for 03UT291

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: 03UT291   
# Created Wed Dec 13 02:37:17 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:   9.96y
# First observation: 2003/10/22
#  Last observation: 2013/10/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000172   0.020751  -0.000003   0.000582   0.022476   0.000000
# Chi-squared of fit:    17.48 DOF:   24 RMS:  0.19
# Min/Max residuals:    -0.36    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.379852E-05  2.063118E-02  2.738954E-07  5.793184E-04  2.266354E-02  8.168599E-04
# Covariance matrix:
  4.2515E-13 -2.2489E-13  4.0116E-15 -4.8621E-15  5.9155E-13 -8.0648E-13
 -2.2489E-13  2.0546E-13 -4.2588E-15  5.1458E-15 -2.3423E-13  8.5071E-13
  4.0116E-15 -4.2588E-15  1.6152E-13 -2.1605E-14  2.7445E-15 -1.8709E-14
 -4.8621E-15  5.1458E-15 -2.1605E-14  7.3655E-15 -3.4116E-15  2.2588E-14
  5.9155E-13 -2.3423E-13  2.7445E-15 -3.4116E-15  2.5190E-12 -5.8116E-13
 -8.0648E-13  8.5071E-13 -1.8709E-14  2.2588E-14 -5.8116E-13  3.7310E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.106739   47.845973    0.334953   -0.001703   -0.938546  2452934.832203
# Heliocentric elements and errors
Epoch:              2452930.5000  =  2003/10/18
Mean Anomaly:          149.24828 +/-     0.167
Argument of Peri:      203.72675 +/-     0.145
Long of Asc Node:       51.13694 +/-     0.001
Inclination:             1.61428 +/-     0.000
Eccentricity:         0.05998078 +/-    0.0002
Semi-Major Axis:     42.81897463 +/-    0.0117
Time of Perihelion: 2410501.8055 +/-      44.0
Perihelion:          40.25065895 +/-    0.0134
Aphelion:            45.38729031 +/-    0.0146
Period (y)              280.1964 +/-      0.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.48716287 +/-    0.0021
Ecliptic Y           33.18544863 +/-    0.0023
Ecliptic Z           -0.08218344 +/-    0.0000
Ecliptic XDOT        -0.00178610 +/-    0.0000
Ecliptic YDOT         0.00173989 +/-    0.0000
Ecliptic ZDOT         0.00006996 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.06381980 +/-    0.0022
Geocenter to KBO     44.12372392 +/-    0.0031
# Hcoef:  6.42

The following table shows the complete astrometric record for 03UT291. 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 (03UT291) followed by the observatory code and reference code for the source of the astrometry.

2003 10  22.33146  03 01 39.51   +17 02 54.3   22.6R 03UT291   695  Cj5825      
2003 10  22.44609  03 01 39.00   +17 02 52.2         03UT291   695  Cj5825      
2003 11  21.21853  02 59 22.48   +16 53 29.7   22.4R 03UT291   695  Cj5825      
2003 11  21.29144  02 59 22.15   +16 53 27.9         03UT291   695  Cj5825      
2004 10  10.37387  03 07 08.30   +17 27 27.2   22.4R 03UT291   695  Cl9848      
2004 10  10.44355  03 07 08.03   +17 27 26.3         03UT291   695  Cl9848      
2004 11  09.23799  03 04 57.24   +17 18 42.2   22.6R 03UT291   695  Cl9848      
2004 11  09.33027  03 04 56.78   +17 18 40.5         03UT291   695  Cl9848      
2004 11  10.31259  03 04 52.18   +17 18 21.9         03UT291   695  Cl9848      
2006 10  21.365892 03 15 52.10   +18 06 08.5   22.9V 03UT291   645  C~2Jx9      
2006 10  21.366721 03 15 52.09   +18 06 08.5   22.8V 03UT291   645  C~2Jx9      
2006 10  21.369209 03 15 52.10   +18 06 08.7   23.2V 03UT291   645  C~2Jx9      
2013 10  06.49297  03 50 15.63   +20 19 27.1   23.2R 03UT291   695  C~0zdX      
2013 10  07.32029  03 50 13.06   +20 19 19.9         03UT291   695  C~0zdX      
2013 10  07.40225  03 50 12.83   +20 19 19.2         03UT291   695  C~0zdX      

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     0.03
  2   0.0003     -7.61     0.08       0.03    -0.00
  3   0.0818  -2045.46     0.14       9.79     0.29
  4   0.0820  -2050.51     0.12       9.40    -0.15
  5   0.9693   4934.41    -0.18     116.61     0.21
  6   0.9695   4930.45    -0.07     116.80     0.36
  7   1.0511   2985.53     0.03     125.30    -0.09
  8   1.0513   2978.73    -0.26     125.48     0.03
  9   1.0540   2910.26    -0.32     125.73    -0.04
 10   2.9980  12779.57     0.06     357.73    -0.36
 11   2.9980  12779.43    -0.03     357.77    -0.32
 12   2.9980  12779.62     0.32     357.93    -0.16
 13   9.9580  43687.07    -0.08    1195.47    -0.10
 14   9.9603  43648.56    -0.21    1196.13     0.18
 15   9.9605  43645.10     0.26    1196.14     0.12

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.

03UT291    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.141    43.176    43.105
ecceobj         0.056     0.055     0.056
incobj          1.607     1.607     1.607
qmin           39.632    39.690    39.558
qmax           46.268    46.273    46.262
amean          42.847    42.882    42.812
amin           42.518    42.546    42.468
amax           43.195    43.240    43.153
emean           0.051     0.051     0.052
emin            0.028     0.028     0.027
emax            0.071     0.071     0.072
imean           1.491     1.463     1.520
imin            0.000     0.000     0.020
imax            2.174     2.149     2.220
excite_mean     0.058     0.057     0.059
fracstop        1.000     1.000     1.000
cjmean          3.084     3.084     3.083

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       178.4     180.3     177.0
kozaiamp        179.9     179.9     179.9