Orbit Fit and Astrometric record for 11CW119

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: 11CW119   
# Created Thu Jul 19 01:37:53 2018
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   16
# Arc:  10.14y
# First observation: 2004/01/28
#  Last observation: 2014/03/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000955   0.038809  -0.000279   0.011869   0.032605   0.000000
# Chi-squared of fit:    12.85 DOF:   24 RMS:  0.16
# Min/Max residuals:    -0.39    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.974956E-05  3.738064E-02  6.037027E-06  1.146211E-02  3.077262E-02 -1.029245E-03
# Covariance matrix:
  4.8639E-13 -1.0817E-13  9.3604E-15 -1.6266E-14 -7.0944E-14 -1.4815E-13
 -1.0817E-13  1.1125E-13 -1.9443E-14  3.3285E-14 -1.2355E-14  3.0167E-13
  9.3604E-15 -1.9443E-14  4.5822E-13 -6.0257E-14  2.3501E-14 -5.9788E-14
 -1.6266E-14  3.3285E-14 -6.0257E-14  1.9156E-14 -3.4559E-14  1.0154E-13
 -7.0944E-14 -1.2355E-14  2.3501E-14 -3.4559E-14  1.8214E-12 -2.9611E-13
 -1.4815E-13  3.0167E-13 -5.9788E-14  1.0154E-13 -2.9611E-13  9.1785E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.645214  127.459389   -0.002453   -0.181074   -0.963678  2453032.825677
# Heliocentric elements and errors
Epoch:              2453030.5000  =  2004/01/26
Mean Anomaly:          357.75286 +/-     0.003
Argument of Peri:      333.39673 +/-     0.006
Long of Asc Node:      157.84196 +/-     0.000
Inclination:            19.82853 +/-     0.000
Eccentricity:         0.37547655 +/-    0.0002
Semi-Major Axis:     53.52144947 +/-    0.0178
Time of Perihelion: 2453923.2237 +/-       1.0
Perihelion:          33.42540019 +/-    0.0147
Aphelion:            73.61749876 +/-    0.0263
Period (y)              391.5615 +/-      0.19
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.02652474 +/-    0.0009
Ecliptic Y           26.13037378 +/-    0.0011
Ecliptic Z           -6.00276748 +/-    0.0003
Ecliptic XDOT        -0.00270373 +/-    0.0000
Ecliptic YDOT        -0.00195115 +/-    0.0000
Ecliptic ZDOT         0.00101930 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.46477767 +/-    0.0010
Geocenter to KBO     32.49642367 +/-    0.0014
# Hcoef:  7.54

The following table shows the complete astrometric record for 11CW119. 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 (11CW119) followed by the observatory code and reference code for the source of the astrometry.

2004 01  28.324934 08 28 33.33   +08 05 45.5   22.5V 11CW119   645  C~2POP      
2004 01  28.325763 08 28 33.33   +08 05 45.6   21.9V 11CW119   645  C~2POP      
2004 01  28.328251 08 28 33.33   +08 05 45.5   23.7V 11CW119   645  C~2POP      
2011 01  30.36706  09 31 42.669  +08 35 20.80  22.7w 11CW119   F51  C~1w3m      
2011 02  02.50724  09 31 25.381  +08 37 03.40  23.2w 11CW119   F51  C~1w3m      
2011 02  02.52241  09 31 25.313  +08 37 03.99  23.3w 11CW119   F51  C~1w3m      
2011 02  02.53833  09 31 25.213  +08 37 04.02  23.3w 11CW119   F51  C~1w3m      
2012 02  14.35247  09 39 20.537  +08 44 44.25  22.6w 11CW119   F51  C~1w3m      
2012 02  14.36670  09 39 20.498  +08 44 44.64  22.6w 11CW119   F51  C~1w3m      
2012 02  14.38088  09 39 20.417  +08 44 45.15  22.9w 11CW119   F51  C~1w3m      
2012 02  14.39507  09 39 20.357  +08 44 45.50  22.9w 11CW119   F51  C~1w3m      
2013 02  21.45461  09 47 35.269  +08 49 43.81  21.4i 11CW119   F51  C~1w3m      
2013 03  04.31210  09 46 37.705  +08 56 27.35  22.6w 11CW119   F51  C~1w3m      
2013 03  04.32634  09 46 37.633  +08 56 27.85  23.0w 11CW119   F51  C~1w3m      
2014 01  25.42074  09 58 56.347  +08 33 01.46  22.6w 11CW119   F51  C~1w3m      
2014 03  20.30310  09 54 17.445  +09 05 23.18  22.7w 11CW119   F51  C~1w3m      

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    -0.11       0.00    -0.03
  2   0.0000     -0.02    -0.06       0.10     0.06
  3   0.0000      0.00     0.19       0.00    -0.05
  4   7.0063  55152.04     0.07   16960.02     0.24
  5   7.0149  54856.91    -0.27   16983.83     0.02
  6   7.0149  54855.69    -0.03   16984.11     0.18
  7   7.0150  54854.15    -0.04   16983.69    -0.36
  8   8.0466  62066.74    -0.39   19639.31    -0.05
  9   8.0467  62066.01     0.29   19639.52     0.02
 10   8.0467  62064.59     0.27   19639.65     0.01
 11   8.0467  62063.55 (   0.63)  19639.72 (  -0.06)
 12   9.0681  69779.67     0.20   22321.29     0.18
 13   9.0978  68737.59     0.01   22448.09    -0.10
 14   9.0979  68736.29     0.05   22448.25    -0.12
 15   9.9934  81159.48    -0.02   24735.52     0.01
 16  10.1409  75959.77    -0.17   25294.08    -0.01

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.

11CW119    quality flag:1

Type:        7:3EEEE  SCATNEAR   7:3EEEE
Type:        7:3EEII                    

axisobj        53.113    53.165    53.061
ecceobj         0.370     0.371     0.370
incobj         19.883    19.883    19.882
qmin           32.378    32.416    32.400
qmax           74.445    74.466    74.477
amean          52.968    52.968    52.968
amin           52.394    52.404    52.422
amax           53.702    53.721    53.695
emean           0.328     0.321     0.322
emin            0.180     0.172     0.177
emax            0.387     0.387     0.387
imean          20.853    21.168    21.146
imin           18.045    18.110    18.107
imax           26.530    26.664    26.512
excite_mean     0.489     0.489     0.489
fracstop        1.000     1.000     1.000
cjmean          2.903     2.903     2.903

libcent 0       149.4    -180.0     185.1
libamp  0        65.9    -180.0     150.8
libcent 1       204.2    -180.0    -180.0
libamp  1       103.0    -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       100.4     100.5     101.4
kozaiamp        180.0     180.0     180.0