Orbit Fit and Astrometric record for 03UZ291

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: 03UZ291   
# Created Sun Oct 22 01:37:26 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   20
# Arc:  10.93y
# First observation: 2003/10/22
#  Last observation: 2014/09/26
Preliminary a, adot, b, bdot, g, gdot:
  -0.001320   0.019142   0.000061  -0.001731   0.019960   0.000000
# Chi-squared of fit:    19.47 DOF:   34 RMS:  0.17
# Min/Max residuals:    -0.57    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.376784E-05  1.844120E-02 -1.318646E-06 -1.682233E-03  2.121094E-02 -1.982602E-03
# Covariance matrix:
  4.1170E-13 -1.4602E-13 -9.2196E-15  8.3057E-15  3.1558E-13 -4.6751E-13
 -1.4602E-13  8.4579E-14  6.0642E-15 -5.9474E-15 -1.0541E-13  3.3063E-13
 -9.2196E-15  6.0642E-15  1.2984E-13 -1.7356E-14 -6.7984E-15  2.5793E-14
  8.3057E-15 -5.9474E-15 -1.7356E-14  5.4899E-15  5.2053E-15 -2.5995E-14
  3.1558E-13 -1.0541E-13 -6.7984E-15  5.2053E-15  4.2661E-13 -3.0086E-13
 -4.6751E-13  3.3063E-13  2.5793E-14 -2.5995E-14 -3.0086E-13  1.4396E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.091353   57.983302    0.494255   -0.016433   -0.865142  2452934.875083
# Heliocentric elements and errors
Epoch:              2452930.5000  =  2003/10/18
Mean Anomaly:          249.74159 +/-     0.049
Argument of Peri:      315.35838 +/-     0.034
Long of Asc Node:      225.84025 +/-     0.001
Inclination:             5.33340 +/-     0.000
Eccentricity:         0.13415945 +/-    0.0001
Semi-Major Axis:     45.24990654 +/-    0.0055
Time of Perihelion: 2486981.8387 +/-      13.6
Perihelion:          39.17920384 +/-    0.0062
Aphelion:            51.32060923 +/-    0.0074
Period (y)              304.3930 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.86457719 +/-    0.0008
Ecliptic Y           40.44235742 +/-    0.0012
Ecliptic Z           -0.89801893 +/-    0.0000
Ecliptic XDOT        -0.00216085 +/-    0.0000
Ecliptic YDOT         0.00103549 +/-    0.0000
Ecliptic ZDOT        -0.00021206 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.01423815 +/-    0.0011
Geocenter to KBO     47.14547183 +/-    0.0015
# Hcoef:  7.16

The following table shows the complete astrometric record for 03UZ291. 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 (03UZ291) followed by the observatory code and reference code for the source of the astrometry.

2003 10  22.37434  03 43 55.95   +18 38 49.2   22.8R 03UZ291   695  Cj5825      
2003 10  22.49612  03 43 55.49   +18 38 47.4         03UZ291   695  Cj5825      
2003 11  20.29547  03 41 52.50   +18 31 27.2   22.7R 03UZ291   695  Cj5825      
2003 11  20.37128  03 41 52.16   +18 31 26.0         03UZ291   695  Cj5825      
2004 01  14.06021  03 38 29.90   +18 19 56.9   23.0R 03UZ291   304  Cj7023      
2004 01  14.08326  03 38 29.85   +18 19 56.9         03UZ291   304  Cj7023      
2004 03  16.13864  03 38 58.20   +18 21 59.3   23.2R 03UZ291   695  Ck4313      
2004 03  16.17927  03 38 58.32   +18 21 59.9         03UZ291   695  Ck4313      
2004 11  09.37002  03 47 05.31   +18 42 32.6   23.1R 03UZ291   695  Cl9848      
2004 11  09.46361  03 47 04.89   +18 42 31.2         03UZ291   695  Cl9848      
2004 11  10.36058  03 47 00.94   +18 42 17.2         03UZ291   695  Cl9848      
2007 11  09.33477  04 00 39.07   +19 05 40.9         03UZ291   695  Cy4001      
2007 11  09.37930  04 00 38.87   +19 05 40.3         03UZ291   695  Cy4001      
2008 09  18.92324  04 07 48.39   +19 21 37.4   24.9R 03UZ291   250  S~06Af      
2008 09  18.92949  04 07 48.38   +19 21 37.3         03UZ291   250  S~06Af      
2008 09  18.93643  04 07 48.37   +19 21 37.3         03UZ291   250  S~06Af      
2008 09  18.94268  04 07 48.37   +19 21 37.3         03UZ291   250  S~06Af      
2014 09  26.38513  04 35 22.53   +19 52 13.7   25.8R 03UZ291   695  C~1LJF      
2014 09  26.42985  04 35 22.47   +19 52 13.2         03UZ291   695  C~1LJF      
2014 09  26.47453  04 35 22.39   +19 52 12.8         03UZ291   695  C~1LJF      

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    -0.00       0.00     0.01
  2   0.0003     -6.77     0.16      -0.30    -0.10
  3   0.0792  -1809.63    -0.08     -37.67     0.05
  4   0.0794  -1814.61     0.01     -37.75     0.04
  5   0.2291  -4775.03     0.03     -53.55     0.06
  6   0.2292  -4775.73     0.09     -53.39     0.21
  7   0.3991  -4354.57     0.12     -26.92    -0.05
  8   0.3992  -4352.77     0.12     -26.72     0.13
  9   1.0513   2674.02    -0.20    -375.23     0.18
 10   1.0516   2667.89    -0.21    -375.29     0.23
 11   1.0540   2610.05    -0.08    -376.70    -0.08
 12   4.0492  14280.01    -0.19   -1432.53    -0.57
 13   4.0493  14277.10    -0.20   -1432.55    -0.54
 14   4.9105  20474.84     0.12   -1679.45     0.04
 15   4.9105  20474.68     0.08   -1679.52    -0.01
 16   4.9105  20474.54     0.08   -1679.49     0.03
 17   4.9105  20474.54     0.20   -1679.49     0.05
 18  10.9295  44424.21     0.06   -3887.27     0.29
 19  10.9297  44423.26     0.08   -3887.65     0.05
 20  10.9298  44422.03    -0.17   -3887.88    -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.

03UZ291    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.478    45.495    45.462
ecceobj         0.127     0.127     0.128
incobj          5.314     5.314     5.314
qmin           38.582    38.613    38.578
qmax           52.045    52.187    52.168
amean          45.182    45.196    45.153
amin           44.817    44.815    44.783
amax           45.592    45.617    45.579
emean           0.128     0.128     0.129
emin            0.114     0.113     0.115
emax            0.142     0.144     0.145
imean           6.633     6.627     6.647
imin            5.950     5.941     5.980
imax            7.180     7.171     7.193
excite_mean     0.173     0.173     0.173
fracstop        1.000     1.000     1.000
cjmean          3.079     3.080     3.079

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       176.1     175.9     176.3
kozaiamp        180.0     180.0     180.0