Orbit Fit and Astrometric record for 11UC411

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: 11UC411   
# Created Thu Dec 14 02:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   46 observations of   46
# Arc:   4.91y
# First observation: 2008/11/02
#  Last observation: 2013/10/01
Preliminary a, adot, b, bdot, g, gdot:
  -0.000970   0.047978   0.000005  -0.000104   0.038312   0.000000
# Chi-squared of fit:    21.14 DOF:   86 RMS:  0.12
# Min/Max residuals:    -0.31    0.37
# Exact a, adot, b, bdot, g, gdot:
  2.071130E-05  4.788294E-02  1.032795E-06 -1.290128E-04  3.613034E-02  1.964302E-04
# Covariance matrix:
  4.8318E-13 -2.4905E-13 -7.1931E-16  4.5387E-16 -9.0595E-14 -6.3225E-13
 -2.4905E-13  1.8070E-13  6.6802E-16 -4.4216E-16  8.2026E-14  5.9666E-13
 -7.1931E-16  6.6802E-16  3.1072E-13 -8.6046E-14  7.7640E-16  2.7338E-15
  4.5387E-16 -4.4216E-16 -8.6046E-14  2.6548E-14  2.0799E-16 -1.5552E-15
 -9.0595E-14  8.2026E-14  7.7640E-16  2.0799E-16  1.6911E-13  3.6169E-13
 -6.3225E-13  5.9666E-13  2.7338E-15 -1.5552E-15  3.6169E-13  2.3249E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.805305   21.080981   -0.329648    0.078583   -0.934306  2454772.860662
# Heliocentric elements and errors
Epoch:              2454770.5000  =  2008/10/31
Mean Anomaly:            2.51242 +/-     0.005
Argument of Peri:       88.06722 +/-     0.009
Long of Asc Node:      289.06200 +/-     0.002
Inclination:             4.65281 +/-     0.000
Eccentricity:         0.27373295 +/-    0.0000
Semi-Major Axis:     39.37124251 +/-    0.0024
Time of Perihelion: 2454140.7658 +/-       1.2
Perihelion:          28.59403622 +/-    0.0023
Aphelion:            50.14844879 +/-    0.0034
Period (y)              247.0455 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.49227378 +/-    0.0003
Ecliptic Y           10.56096026 +/-    0.0001
Ecliptic Z            2.31857784 +/-    0.0000
Ecliptic XDOT        -0.00128458 +/-    0.0000
Ecliptic YDOT         0.00339367 +/-    0.0000
Ecliptic ZDOT        -0.00000861 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.61381231 +/-    0.0003
Geocenter to KBO     27.67757074 +/-    0.0003
# Hcoef:  8.00

The following table shows the complete astrometric record for 11UC411. 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 (11UC411) followed by the observatory code and reference code for the source of the astrometry.

2008 11  02.359908 01 10 31.75   +12 40 32.0   22.3V 11UC411   645  C~1SLq      
2008 11  02.360738 01 10 31.74   +12 40 31.9   21.8V 11UC411   645  C~1SLq      
2008 11  02.363225 01 10 31.73   +12 40 31.8   23.0V 11UC411   645  C~1SLq      
2011 08  30.48811  01 48 11.260  +16 09 22.60  22.6r 11UC411   568  C~1C6N      
2011 08  30.49881  01 48 11.217  +16 09 22.54  22.6r 11UC411   568  C~1C6N      
2011 08  30.54101  01 48 11.064  +16 09 22.27  22.5r 11UC411   568  C~1C6N      
2011 08  30.54538  01 48 11.056  +16 09 22.16  22.6r 11UC411   568  C~1C6N      
2011 08  30.58738  01 48 10.910  +16 09 21.65  22.5r 11UC411   568  C~1C6N      
2011 08  30.59180  01 48 10.896  +16 09 21.60  22.6r 11UC411   568  C~1C6N      
2011 10  25.33804  01 43 04.058  +15 44 58.83  22.4r 11UC411   568  C~1C6N      
2011 10  25.38684  01 43 03.731  +15 44 56.94  22.4r 11UC411   568  C~1C6N      
2011 10  25.43648  01 43 03.401  +15 44 55.15  22.3r 11UC411   568  C~1C6N      
2011 10  25.44205  01 43 03.352  +15 44 54.85  22.3r 11UC411   568  C~1C6N      
2011 10  25.44723  01 43 03.321  +15 44 54.71  22.3r 11UC411   568  C~1C6N      
2011 10  25.45234  01 43 03.287  +15 44 54.53  22.2r 11UC411   568  C~1C6N      
2011 10  25.45781  01 43 03.253  +15 44 54.35  22.3r 11UC411   568  C~1C6N      
2011 10  26.28698  01 42 57.852  +15 44 23.26  22.3r 11UC411   568  C~1C6N      
2011 10  26.33962  01 42 57.502  +15 44 21.36  22.3r 11UC411   568  C~1C6N      
2011 10  26.38266  01 42 57.207  +15 44 19.88  22.4r 11UC411   568  C~1C6N      
2011 10  26.39884  01 42 57.110  +15 44 19.09  22.3r 11UC411   568  C~1C6N      
2011 10  26.40555  01 42 57.060  +15 44 18.87  22.3r 11UC411   568  C~1C6N      
2011 10  31.28562  01 42 25.400  +15 41 14.27  22.2r 11UC411   568  C~1C6N      
2011 10  31.38837  01 42 24.731  +15 41 10.38  22.4r 11UC411   568  C~1C6N      
2011 10  31.41441  01 42 24.566  +15 41 09.38  22.4r 11UC411   568  C~1C6N      
2011 10  31.44399  01 42 24.368  +15 41 08.22  22.5r 11UC411   568  C~1C6N      
2011 11  24.23661  01 40 04.913  +15 26 22.08  22.5r 11UC411   568  C~1C6N      
2011 11  26.45630  01 39 53.853  +15 25 05.38  22.6r 11UC411   568  C~1C6N      
2012 01  25.29229  01 38 36.626  +15 07 56.36        11UC411   568  C~1C6N      
2012 01  27.21101  01 38 42.143  +15 08 06.60  22.7r 11UC411   568  C~1C6N      
2012 01  27.26158  01 38 42.292  +15 08 06.85  22.7r 11UC411   568  C~1C6N      
2012 02  28.22088  01 41 21.994  +15 17 50.70  22.7r 11UC411   568  C~1C6N      
2012 08  17.57288  01 59 11.639  +17 03 43.54  22.6r 11UC411   568  C~1C6N      
2012 08  24.53062  01 58 58.112  +17 03 34.62  22.7r 11UC411   568  C~1C6N      
2012 10  17.37819  01 54 31.795  +16 44 43.98  22.4r 11UC411   568  C~1C6N      
2012 10  20.47322  01 54 11.413  +16 42 56.46  22.2r 11UC411   568  C~1C6N      
2012 10  21.33604  01 54 05.741  +16 42 26.05  22.3r 11UC411   568  C~1C6N      
2012 10  21.36172  01 54 05.565  +16 42 25.15  22.3r 11UC411   568  C~1C6N      
2012 10  21.38781  01 54 05.392  +16 42 24.23  22.3r 11UC411   568  C~1C6N      
2013 01  14.32680  01 48 33.032  +16 02 35.17  22.6r 11UC411   568  C~1C6N      
2013 02  03.29696  01 49 19.726  +16 03 12.99  22.6r 11UC411   568  C~1C6N      
2013 08  30.61670  02 09 16.70   +17 54 20.1         11UC411   568  C~1C6N      
2013 08  30.62241  02 09 16.69   +17 54 20.1         11UC411   568  C~1C6N      
2013 08  30.62811  02 09 16.67   +17 54 20.1         11UC411   568  C~1C6N      
2013 10  01.61511  02 06 54.44   +17 45 35.8         11UC411   568  C~1CKy      
2013 10  01.62082  02 06 54.40   +17 45 35.7         11UC411   568  C~1CKy      
2013 10  01.62652  02 06 54.37   +17 45 35.6         11UC411   568  C~1CKy      

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     0.05       0.00    -0.22
  2   0.0000     -0.17    -0.04      -0.04    -0.26
  3   0.0000     -0.35     0.02      -0.07    -0.29
  4   2.8231  35471.07     0.15    -208.97    -0.14
  5   2.8231  35470.45     0.07    -208.82    -0.07
  6   2.8232  35468.22     0.00    -208.31     0.10
  7   2.8232  35468.07     0.08    -208.37     0.00
  8   2.8233  35465.86     0.02    -208.13    -0.08
  9   2.8234  35465.64     0.03    -208.11    -0.09
 10   2.9760  30687.42     0.11     -51.81     0.16
 11   2.9761  30682.22     0.06     -51.95     0.10
 12   2.9763  30677.02     0.10     -51.97     0.15
 13   2.9763  30676.23    -0.10     -52.00     0.13
 14   2.9763  30675.76    -0.03     -51.98     0.16
 15   2.9763  30675.22    -0.02     -51.97     0.17
 16   2.9763  30674.69     0.02     -51.97     0.18
 17   2.9786  30588.91     0.01     -54.01     0.15
 18   2.9787  30583.40     0.03     -54.03     0.21
 19   2.9788  30578.79    -0.04     -53.93     0.37
 20   2.9789  30577.17     0.04     -54.19     0.14
 21   2.9789  30576.40    -0.02     -54.14     0.20
 22   2.9923  30072.92    -0.19     -68.08     0.08
 23   2.9925  30062.29    -0.14     -68.36     0.05
 24   2.9926  30059.65    -0.06     -68.47     0.01
 25   2.9927  30056.50    -0.13     -68.56     0.00
 26   3.0578  27815.42    -0.01    -194.62    -0.19
 27   3.0639  27635.55     0.03    -210.38     0.06
 28   3.2277  26203.34    -0.05    -784.47    -0.05
 29   3.2330  26282.97    -0.05    -803.25     0.05
 30   3.2331  26285.11    -0.03    -803.78    -0.00
 31   3.3206  28696.59    -0.05   -1072.80     0.03
 32   3.7898  45899.41    -0.06    -328.47    -0.03
 33   3.8088  45704.14    -0.06    -271.62    -0.05
 34   3.9562  41545.22     0.04     -63.72    -0.06
 35   3.9647  41220.78    -0.04     -67.01     0.05
 36   3.9671  41130.35     0.03     -68.37     0.07
 37   3.9672  41127.56    -0.02     -68.37     0.09
 38   3.9672  41124.80     0.01     -68.41     0.08
 39   4.1998  35631.25     0.21    -706.42    -0.01
 40   4.2544  36296.50     0.12    -903.94     0.04
 41   4.8248  55629.63    -0.10    -250.46    -0.21
 42   4.8248  55629.49     0.00    -250.41    -0.20
 43   4.8248  55629.20    -0.04    -250.32    -0.15
 44   4.9124  53390.82     0.05     -95.87    -0.31
 45   4.9124  53390.21    -0.03     -95.78    -0.23
 46   4.9124  53389.74     0.05     -95.73    -0.20

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.

11UC411    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.683    39.690    39.676
ecceobj         0.279     0.279     0.279
incobj          4.653     4.653     4.653
qmin           28.274    28.242    28.251
qmax           51.310    51.391    51.362
amean          39.455    39.455    39.455
amin           38.953    38.969    38.951
amax           40.031    40.028    40.057
emean           0.266     0.265     0.267
emin            0.249     0.247     0.249
emax            0.284     0.284     0.284
imean           6.908     6.981     6.823
imin            6.013     6.018     5.996
imax            7.716     7.815     7.592
excite_mean     0.292     0.292     0.292
fracstop        1.000     1.000     1.000
cjmean          2.953     2.953     2.953

libcent 0       179.9     180.6     180.1
libamp  0        98.9      94.9      99.1
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       182.8     185.1     178.9
kozaiamp        180.0     180.0     180.0