Orbit Fit and Astrometric record for 11UX410

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: 11UX410   
# Created Wed Oct 18 01:37:58 2017
# Orbit generated from Bernstein formalism
# Fitting   28 observations of   28
# Arc:   2.17y
# First observation: 2011/08/30
#  Last observation: 2013/11/01
Preliminary a, adot, b, bdot, g, gdot:
  -0.000174   0.028276   0.000055  -0.008727   0.028110   0.000000
# Chi-squared of fit:    10.06 DOF:   50 RMS:  0.11
# Min/Max residuals:    -0.30    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.626527E-05  2.772559E-02 -4.331200E-06 -8.514777E-03  2.800381E-02 -9.051328E-03
# Covariance matrix:
  1.9140E-13  1.2787E-14  3.5226E-15 -2.8210E-14  1.5928E-13  1.6955E-12
  1.2787E-14  3.9989E-13  2.6573E-14 -1.5192E-13  2.5270E-13  8.9392E-12
  3.5226E-15  2.6573E-14  1.0047E-13 -8.2662E-14  1.7749E-14  8.3174E-13
 -2.8210E-14 -1.5192E-13 -8.2662E-14  1.8017E-13 -1.1172E-13 -4.6722E-12
  1.5928E-13  2.5270E-13  1.7749E-14 -1.1172E-13  3.2845E-13  6.6187E-12
  1.6955E-12  8.9392E-12  8.3174E-13 -4.6722E-12  6.6187E-12  2.7456E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.561641   34.081811    0.849627    0.033513   -0.538914  2455804.016986
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          303.21656 +/-     0.047
Argument of Peri:      262.52216 +/-     0.008
Long of Asc Node:      223.98423 +/-     0.000
Inclination:            17.44149 +/-     0.001
Eccentricity:         0.32839993 +/-    0.0006
Semi-Major Axis:     39.64479505 +/-    0.0162
Time of Perihelion: 2470181.7591 +/-       8.0
Perihelion:          26.62544704 +/-    0.0248
Aphelion:            52.66414306 +/-    0.0310
Period (y)              249.6246 +/-      0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.44549627 +/-    0.0006
Ecliptic Y           19.57213977 +/-    0.0004
Ecliptic Z            2.21822152 +/-    0.0000
Ecliptic XDOT        -0.00221082 +/-    0.0000
Ecliptic YDOT         0.00178451 +/-    0.0000
Ecliptic ZDOT        -0.00088577 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.26178988 +/-    0.0006
Geocenter to KBO     35.70943106 +/-    0.0007
# Hcoef:  8.35

The following table shows the complete astrometric record for 11UX410. 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 (11UX410) followed by the observatory code and reference code for the source of the astrometry.

2011 08  30.51622  02 02 18.557  +16 13 42.96  24.2r 11UX410   568  C~1C6M      
2011 08  30.56278  02 02 18.431  +16 13 42.37  24.1r 11UX410   568  C~1C6M      
2011 08  30.60922  02 02 18.311  +16 13 41.78  23.9r 11UX410   568  C~1C6M      
2011 09  05.61026  02 02 01.556  +16 12 14.36  23.9r 11UX410   568  C~1C6M      
2011 10  25.31577  01 58 12.363  +15 50 01.33        11UX410   568  C~1C6M      
2011 10  25.36423  01 58 12.100  +15 49 59.59  23.6r 11UX410   568  C~1C6M      
2011 10  25.41871  01 58 11.796  +15 49 57.86  23.5r 11UX410   568  C~1C6M      
2011 10  25.47315  01 58 11.492  +15 49 55.95  23.6r 11UX410   568  C~1C6M      
2011 10  26.26973  01 58 07.172  +15 49 28.64  23.6r 11UX410   568  C~1C6M      
2011 10  26.32241  01 58 06.883  +15 49 26.87  23.7r 11UX410   568  C~1C6M      
2011 10  26.36558  01 58 06.645  +15 49 25.43  23.7r 11UX410   568  C~1C6M      
2011 10  31.30918  01 57 39.799  +15 46 34.83        11UX410   568  C~1C6M      
2011 10  31.35747  01 57 39.535  +15 46 33.12  23.7r 11UX410   568  C~1C6M      
2011 10  31.37121  01 57 39.468  +15 46 32.62  23.8r 11UX410   568  C~1C6M      
2011 12  01.32447  01 55 08.282  +15 29 08.64  23.7r 11UX410   568  C~1C6M      
2012 01  26.31723  01 53 50.429  +15 12 12.27  23.7r 11UX410   568  C~1C6M      
2012 01  27.25145  01 53 52.013  +15 12 10.64  24.1r 11UX410   568  C~1C6M      
2012 08  23.54195  02 09 31.133  +16 19 45.67  24.0r 11UX410   568  C~1C6M      
2012 08  24.57765  02 09 29.245  +16 19 35.98  23.9r 11UX410   568  C~1C6M      
2012 10  21.33175  02 05 32.636  +15 57 05.96  23.5r 11UX410   568  C~1C6M      
2012 10  21.35746  02 05 32.488  +15 57 05.12  23.5r 11UX410   568  C~1C6M      
2012 10  21.38354  02 05 32.343  +15 57 04.22  23.6r 11UX410   568  C~1C6M      
2013 01  14.34100  02 00 28.538  +15 18 37.53  23.8r 11UX410   568  C~1C6M      
2013 02  02.25091  02 00 52.166  +15 17 25.19  23.9r 11UX410   568  C~1C6M      
2013 02  03.25659  02 00 54.541  +15 17 27.26  23.9r 11UX410   568  C~1C6M      
2013 11  01.47101  02 11 43.34   +15 55 27.6         11UX410   568  C~1CKy      
2013 11  01.48128  02 11 43.28   +15 55 27.3         11UX410   568  C~1CKy      
2013 11  01.49156  02 11 43.23   +15 55 27.0         11UX410   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    -0.13       0.00    -0.10
  2   0.0001     -1.91    -0.18       0.07    -0.07
  3   0.0003     -3.73    -0.16       0.11    -0.07
  4   0.0167   -260.40     0.05       0.84    -0.06
  5   0.1528  -3822.32     0.01    -107.99     0.12
  6   0.1529  -3826.49     0.04    -108.30     0.01
  7   0.1531  -3831.20     0.06    -108.40     0.13
  8   0.1532  -3835.98     0.02    -108.66     0.10
  9   0.1554  -3903.96    -0.02    -112.58     0.07
 10   0.1555  -3908.48     0.01    -112.79     0.08
 11   0.1556  -3912.21     0.03    -112.95     0.10
 12   0.1692  -4335.00    -0.04    -138.00     0.09
 13   0.1693  -4339.17    -0.03    -138.27     0.04
 14   0.1693  -4340.26     0.08    -138.40    -0.03
 15   0.2541  -6753.16     0.05    -352.70     0.02
 16   0.4074  -8166.80    -0.06    -908.32    -0.16
 17   0.4100  -8145.88     0.20    -917.93     0.06
 18   0.9830   5984.48     0.25   -1770.67    -0.26
 19   0.9858   5955.60     0.04   -1770.70    -0.11
 20   1.1439   2289.10     0.06   -1891.89    -0.01
 21   1.1440   2286.81    -0.00   -1891.95     0.03
 22   1.1441   2284.53    -0.01   -1892.09    -0.01
 23   1.3767  -2629.00     0.08   -2557.20     0.10
 24   1.4284  -2333.03    -0.14   -2743.05    -0.13
 25   1.4312  -2300.05    -0.15   -2752.95    -0.30
 26   2.1737   7295.88    -0.06   -3782.48     0.07
 27   2.1738   7294.96    -0.07   -3782.48     0.13
 28   2.1738   7294.18     0.06   -3782.52     0.14

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.

11UX410    quality flag:3

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

axisobj        39.715    39.757    39.672
ecceobj         0.327     0.329     0.326
incobj         17.423    17.423    17.423
qmin           25.970    26.033    25.958
qmax           53.504    53.388    53.390
amean          39.454    39.454    39.454
amin           39.061    39.077    39.072
amax           39.937    39.954    39.917
emean           0.266     0.273     0.262
emin            0.158     0.162     0.163
emax            0.340     0.338     0.342
imean          20.889    20.781    20.997
imin           17.498    17.461    17.508
imax           24.350    24.336    24.240
excite_mean     0.448     0.450     0.447
fracstop        1.000     1.000     1.000
cjmean          2.821     2.820     2.822

libcent 0       177.5     177.3     178.8
libamp  0        52.6      59.7      58.7
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       265.0     283.7     265.6
kozaiamp         76.7     179.9      88.9