Orbit Fit and Astrometric record for 03HZ56

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: 03HZ56    
# Created Fri Oct 20 01:37:25 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   17
# Arc:  10.05y
# First observation: 2003/04/26
#  Last observation: 2013/05/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.000133   0.022792   0.000042  -0.000766   0.025046   0.000000
# Chi-squared of fit:    17.69 DOF:   26 RMS:  0.19
# Min/Max residuals:    -0.33    0.38
# Exact a, adot, b, bdot, g, gdot:
  1.624988E-05  2.247197E-02 -2.813609E-07 -7.568535E-04  2.352965E-02 -1.246467E-04
# Covariance matrix:
  2.0706E-13 -9.7627E-14 -5.6834E-16  2.8795E-15  1.0920E-13 -3.6188E-13
 -9.7627E-14  2.3688E-13  7.4578E-15 -7.7553E-15  3.0680E-13  9.8493E-13
 -5.6834E-16  7.4578E-15  1.3099E-13 -1.8577E-14  1.8990E-14  3.1412E-14
  2.8795E-15 -7.7553E-15 -1.8577E-14  9.1264E-15 -9.6282E-15 -3.3572E-14
  1.0920E-13  3.0680E-13  1.8990E-14 -9.6282E-15  1.3675E-12  1.2397E-12
 -3.6188E-13  9.8493E-13  3.1412E-14 -3.3572E-14  1.2397E-12  4.2622E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.688196 -163.711784   -0.338178    0.027942   -0.948130  2452755.830043
# Heliocentric elements and errors
Epoch:              2452750.5000  =  2003/04/21
Mean Anomaly:           33.64585 +/-     0.756
Argument of Peri:      105.35298 +/-     0.772
Long of Asc Node:       57.11493 +/-     0.003
Inclination:             2.54756 +/-     0.000
Eccentricity:         0.00887841 +/-    0.0001
Semi-Major Axis:     43.77222854 +/-    0.0078
Time of Perihelion: 2442864.3892 +/-     222.1
Perihelion:          43.38360097 +/-    0.0091
Aphelion:            44.16085612 +/-    0.0092
Period (y)              289.6051 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.59361760 +/-    0.0020
Ecliptic Y          -12.50169355 +/-    0.0006
Ecliptic Z            1.25205872 +/-    0.0001
Ecliptic XDOT         0.00073863 +/-    0.0000
Ecliptic YDOT        -0.00251142 +/-    0.0000
Ecliptic ZDOT        -0.00008827 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.44984485 +/-    0.0019
Geocenter to KBO     42.49957479 +/-    0.0021
# Hcoef:  7.52

The following table shows the complete astrometric record for 03HZ56. 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 (03HZ56) followed by the observatory code and reference code for the source of the astrometry.

2003 04  26.32930  13 02 37.96   -04 50 47.4   23.4R 03HZ56    568  Cq9883      
2003 04  26.37152  13 02 37.79   -04 50 46.4   23.2R 03HZ56    568  Cq9883      
2003 04  26.41393  13 02 37.62   -04 50 45.3   23.9R 03HZ56    568  Cq9883      
2003 04  27.38085  13 02 33.65   -04 50 22.4   23.3R 03HZ56    568  Cq9883      
2003 05  30.28847  13 00 43.94   -04 40 05.1   23.8R 03HZ56    568  Cq9883      
2003 05  30.34174  13 00 43.80   -04 40 04.7   24.4R 03HZ56    568  Cq9883      
2003 05  30.38854  13 00 43.70   -04 40 04.1   23.6R 03HZ56    568  Cq9883      
2004 04  15.32423  13 08 04.89   -05 27 05.6         03HZ56    675  Cq9883      
2004 04  16.28037  13 08 00.79   -05 26 41.1         03HZ56    675  Cq9883      
2004 04  16.35322  13 08 00.43   -05 26 39.2         03HZ56    675  Cq9883      
2004 04  16.40056  13 08 00.23   -05 26 37.9         03HZ56    675  Cq9883      
2005 07  08.27115  13 09 24.16   -05 41 02.4   23.1r 03HZ56    568  Cq9883      
2005 08  02.00201  13 10 02.56   -05 46 05.3         03HZ56    309  Cq9883      
2005 08  02.00428  13 10 02.56   -05 46 05.4         03HZ56    309  Cq9883      
2005 08  02.99885  13 10 05.16   -05 46 23.8         03HZ56    309  Cq9883      
2013 05  14.22954  13 48 55.67   -09 55 34.2   23.8R 03HZ56    G37  C~0sni      
2013 05  14.29858  13 48 55.38   -09 55 32.0         03HZ56    G37  C~0sni      

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    -0.24       0.00    -0.05
  2   0.0001     -2.73    -0.13      -0.05    -0.03
  3   0.0002     -5.50    -0.06      -0.01     0.09
  4   0.0029    -69.08    -0.11      -1.59    -0.33
  5   0.0930  -1820.46     0.08     -60.45     0.38
  6   0.0931  -1822.55     0.06     -60.89     0.09
  7   0.0932  -1824.16     0.25     -60.91     0.19
  8   0.9719   5347.04    -0.11    -146.06     0.04
  9   0.9745   5281.06 (   0.72)   -146.75 (   0.10)
 10   0.9747   5275.36     0.18    -147.04    -0.11
 11   0.9749   5272.10     0.26    -146.98     0.01
 12   2.2011   6761.25    -0.09    -469.11    -0.18
 13   2.2688   7407.29    -0.16    -531.18    -0.04
 14   2.2688   7407.33    -0.22    -531.27    -0.13
 15   2.2715   7450.27     0.28    -533.53    -0.03
 16  10.0504  45879.59     0.20   -1609.96    -0.29
 17  10.0506  45874.56    -0.20   -1609.43     0.37

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.

03HZ56    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.376    43.399    43.353
ecceobj         0.004     0.003     0.004
incobj          2.553     2.553     2.553
qmin           42.337    42.336    42.303
qmax           45.178    45.208    45.136
amean          43.672    43.696    43.649
amin           43.333    43.358    43.318
amax           44.010    44.034    43.981
emean           0.013     0.013     0.013
emin            0.000     0.000     0.000
emax            0.027     0.027     0.027
imean           1.416     1.423     1.409
imin            0.605     0.617     0.593
imax            2.003     2.003     2.003
excite_mean     0.029     0.029     0.029
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.096

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       167.6     168.0     168.1
kozaiamp        180.0     180.0     180.0