Orbit Fit and Astrometric record for 03QZ111

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: 03QZ111   
# Created Fri Dec 15 02:37:14 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   23
# Arc:  10.20y
# First observation: 2003/08/26
#  Last observation: 2013/11/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.000297   0.026135  -0.000018   0.001170   0.025183   0.000000
# Chi-squared of fit:    29.96 DOF:   34 RMS:  0.22
# Min/Max residuals:    -0.47    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.462591E-05  2.583784E-02 -7.751825E-07  1.154161E-03  2.538494E-02  8.016873E-05
# Covariance matrix:
  2.2436E-13 -8.8705E-14  2.9080E-15 -3.5315E-15  7.0913E-14 -3.0255E-13
 -8.8705E-14  9.1270E-14 -3.5695E-15  4.3775E-15 -5.8753E-14  3.7387E-13
  2.9080E-15 -3.5695E-15  1.6902E-13 -2.0099E-14  4.2605E-15 -1.5877E-14
 -3.5315E-15  4.3775E-15 -2.0099E-14  4.3295E-15 -4.5152E-15  1.9254E-14
  7.0913E-14 -5.8753E-14  4.2605E-15 -4.5152E-15  5.4003E-13 -4.0490E-13
 -3.0255E-13  3.7387E-13 -1.5877E-14  1.9254E-14 -4.0490E-13  1.6503E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.737535  -18.041461    0.167380    0.012942   -1.000922  2452877.758933
# Heliocentric elements and errors
Epoch:              2452870.5000  =  2003/08/19
Mean Anomaly:          357.95792 +/-     0.049
Argument of Peri:       17.89491 +/-     0.055
Long of Asc Node:      326.10969 +/-     0.001
Inclination:             2.67016 +/-     0.000
Eccentricity:         0.05677776 +/-    0.0001
Semi-Major Axis:     42.82043901 +/-    0.0058
Time of Perihelion: 2453451.0582 +/-      14.0
Perihelion:          40.38919061 +/-    0.0069
Aphelion:            45.25168742 +/-    0.0074
Period (y)              280.2108 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.35076017 +/-    0.0011
Ecliptic Y          -12.66434134 +/-    0.0004
Ecliptic Z            0.50702691 +/-    0.0000
Ecliptic XDOT         0.00086451 +/-    0.0000
Ecliptic YDOT         0.00264177 +/-    0.0000
Ecliptic ZDOT         0.00012475 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.39088292 +/-    0.0010
Geocenter to KBO     39.39342954 +/-    0.0011
# Hcoef:  7.16

The following table shows the complete astrometric record for 03QZ111. 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 (03QZ111) followed by the observatory code and reference code for the source of the astrometry.

2003 08  26.25819  22 52 18.91   -06 23 40.2   22.0R 03QZ111   807  Ci4592      
2003 08  26.35950  22 52 18.45   -06 23 43.2         03QZ111   807  Ci4592      
2003 09  03.09334  22 51 42.64   -06 27 15.9         03QZ111   304  Ci4592      
2003 09  03.16964  22 51 42.27   -06 27 19.0         03QZ111   304  Ci4592      
2003 09  21.81764  22 50 16.90   -06 35 50.5   21.8R 03QZ111   246  C~05DA      
2003 09  21.82341  22 50 16.87   -06 35 51.2         03QZ111   246  C~05DA      
2003 10  22.12939  22 48 24.25   -06 47 18.5   22.8R 03QZ111   695  Cj4700      
2003 10  22.21395  22 48 23.99   -06 47 19.6         03QZ111   695  Cj4700      
2004 07  16.33911  23 00 14.15   -05 31 22.4   22.2R 03QZ111   807  Cl4360      
2004 07  16.39057  23 00 14.01   -05 31 23.5         03QZ111   807  Cl4360      
2004 08  23.14583  22 57 52.90   -05 45 06.9   22.9R 03QZ111   304  Cl4360      
2004 08  23.28212  22 57 52.26   -05 45 10.7         03QZ111   304  Cl4360      
2009 08  20.37971  23 24 54.28   -02 33 49.7   23.2R 03QZ111   688  C~08Tg      
2009 08  20.42478  23 24 54.08   -02 33 51.5         03QZ111   688  C~08Tg      
2009 09  16.339346 23 22 53.55   -02 46 17.1   23.3V 03QZ111   645  C~2Jx8      
2009 09  16.340176 23 22 53.55   -02 46 17.1   21.7V 03QZ111   645  C~2Jx8      
2009 09  16.342663 23 22 53.55   -02 46 17.1   23.8V 03QZ111   645  C~2Jx8      
2013 09  30.126551 23 43 13.00   -00 19 12.7   22.8r 03QZ111   W84  C~1n06      
2013 09  30.137083 23 43 12.96   -00 19 13.0   22.8i 03QZ111   W84  C~1n06      
2013 10  13.078634 23 42 17.09   -00 25 16.4   22.9i 03QZ111   W84  C~1n06      
2013 10  28.047975 23 41 21.23   -00 31 27.6   23.5r 03QZ111   W84  C~1n06      
2013 10  28.049352 23 41 21.21   -00 31 27.7   22.9i 03QZ111   W84  C~1n06      
2013 11  08.137859 23 40 48.58   -00 35 10.7   23.8r 03QZ111   W84  C~1n06      

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     0.30       0.00     0.31
  2   0.0003     -7.48     0.37      -0.16     0.01
  3   0.0215   -582.04 (   0.33)      6.20 (   0.72)
  4   0.0217   -588.32    -0.17       5.44    -0.13
  5   0.0727  -1959.57 (  -0.09)     15.74 (   1.29)
  6   0.0727  -1960.24 (  -0.36)     15.26 (   0.81)
  7   0.1557  -3773.71    -0.08      15.55    -0.09
  8   0.1559  -3777.71    -0.16      16.00     0.34
  9   0.8900   7754.67    -0.07     189.14     0.08
 10   0.8902   7752.32    -0.19     188.92    -0.24
 11   0.9935   5488.83     0.07     236.12     0.14
 12   0.9939   5478.54    -0.19     236.27     0.10
 13   5.9853  32560.34     0.26    1432.43     0.36
 14   5.9854  32556.79    -0.13    1431.94    -0.21
 15   6.0591  30557.26    -0.10    1450.27    -0.46
 16   6.0591  30557.26    -0.03    1450.27    -0.47
 17   6.0591  30557.26     0.16    1450.27    -0.47
 18  10.0968  51658.91    -0.17    2443.61     0.13
 19  10.0969  51658.20    -0.05    2443.57     0.09
 20  10.1323  50688.49    -0.07    2436.87     0.15
 21  10.1733  49717.79     0.16    2422.70     0.18
 22  10.1733  49717.46    -0.10    2422.73     0.21
 23  10.2036  49148.84     0.18    2408.61    -0.04

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.

03QZ111    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.253    43.270    43.235
ecceobj         0.066     0.067     0.066
incobj          2.658     2.658     2.658
qmin           39.451    39.489    39.450
qmax           46.815    46.918    46.847
amean          43.067    43.082    43.047
amin           42.734    42.743    42.712
amax           43.433    43.444    43.407
emean           0.063     0.063     0.062
emin            0.041     0.043     0.041
emax            0.079     0.080     0.080
imean           3.903     3.895     3.907
imin            2.743     2.742     2.734
imax            4.785     4.780     4.791
excite_mean     0.093     0.093     0.092
fracstop        1.000     1.000     1.000
cjmean          3.080     3.080     3.080

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       178.2     178.2     177.8
kozaiamp        179.9     180.0     180.0