Orbit Fit and Astrometric record for 11UY410

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: 11UY410   
# Created Thu Dec 14 02:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:   1.43y
# First observation: 2011/08/30
#  Last observation: 2013/02/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000254   0.033983   0.000019   0.004715   0.029790   0.000000
# Chi-squared of fit:     7.44 DOF:   42 RMS:  0.10
# Min/Max residuals:    -0.21    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.759454E-05  3.368978E-02  1.537363E-06  4.730130E-03  2.977390E-02  2.083075E-03
# Covariance matrix:
  6.1174E-13  4.9123E-13 -4.1502E-14  2.1153E-13  8.4937E-13  3.2052E-11
  4.9123E-13  1.3186E-12 -6.6149E-14  3.6106E-13  1.2180E-12  5.5281E-11
 -4.1502E-14 -6.6149E-14  1.4936E-13 -1.6493E-13 -7.8432E-14 -3.3794E-12
  2.1153E-13  3.6106E-13 -1.6493E-13  3.6157E-13  4.0680E-13  1.8520E-11
  8.4937E-13  1.2180E-12 -7.8432E-14  4.0680E-13  1.5652E-12  6.1807E-11
  3.2052E-11  5.5281E-11 -3.3794E-12  1.8520E-11  6.1807E-11  2.8372E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.029104   33.993058    0.849223    0.028533   -0.539867  2455803.971736
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:           12.57308 +/-     0.497
Argument of Peri:        3.52494 +/-     0.678
Long of Asc Node:       12.36899 +/-     0.002
Inclination:             8.57546 +/-     0.001
Eccentricity:         0.14244004 +/-    0.0005
Semi-Major Axis:     39.59721671 +/-    0.0066
Time of Perihelion: 2452621.9082 +/-     125.7
Perihelion:          33.95698741 +/-    0.0222
Aphelion:            45.23744602 +/-    0.0228
Period (y)              249.1754 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.73419919 +/-    0.0012
Ecliptic Y           18.35105868 +/-    0.0008
Ecliptic Z            1.77489520 +/-    0.0001
Ecliptic XDOT        -0.00159565 +/-    0.0000
Ecliptic YDOT         0.00266800 +/-    0.0000
Ecliptic ZDOT         0.00044453 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.14038387 +/-    0.0011
Geocenter to KBO     33.58646156 +/-    0.0014
# Hcoef:  9.31

The following table shows the complete astrometric record for 11UY410. 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 (11UY410) followed by the observatory code and reference code for the source of the astrometry.

2011 08  30.47097  02 02 43.356  +15 41 52.66  24.2r 11UY410   568  C~1C6M      
2011 08  30.56976  02 02 43.072  +15 41 51.96  24.3r 11UY410   568  C~1C6M      
2011 10  25.36423  01 58 20.579  +15 23 55.53        11UY410   568  C~1C6M      
2011 10  25.41871  01 58 20.257  +15 23 54.13  24.5r 11UY410   568  C~1C6M      
2011 10  25.47315  01 58 19.937  +15 23 52.32  24.3r 11UY410   568  C~1C6M      
2011 10  26.26973  01 58 15.339  +15 23 29.95  24.4r 11UY410   568  C~1C6M      
2011 10  26.32241  01 58 15.025  +15 23 28.58  24.4r 11UY410   568  C~1C6M      
2011 10  26.36558  01 58 14.768  +15 23 27.36  24.5r 11UY410   568  C~1C6M      
2011 10  31.26858  01 57 46.435  +15 21 08.44        11UY410   568  C~1C6M      
2011 10  31.30918  01 57 46.203  +15 21 07.34        11UY410   568  C~1C6M      
2011 10  31.37121  01 57 45.844  +15 21 05.55  24.6r 11UY410   568  C~1C6M      
2011 11  24.30982  01 55 36.987  +15 09 58.43  24.7r 11UY410   568  C~1C6M      
2011 12  01.32447  01 55 04.956  +15 07 01.82  24.7r 11UY410   568  C~1C6M      
2012 08  23.52487  02 10 07.922  +16 36 39.33  24.2r 11UY410   568  C~1C6M      
2012 08  23.54195  02 10 07.901  +16 36 39.47  24.1r 11UY410   568  C~1C6M      
2012 08  24.56060  02 10 05.942  +16 36 37.98  24.5r 11UY410   568  C~1C6M      
2012 08  24.57765  02 10 05.911  +16 36 38.04  24.3r 11UY410   568  C~1C6M      
2012 10  17.40387  02 06 17.800  +16 22 54.95  24.7r 11UY410   568  C~1C6M      
2012 10  20.50070  02 05 59.937  +16 21 34.14  24.4r 11UY410   568  C~1C6M      
2012 10  21.33175  02 05 55.125  +16 21 11.91  24.6r 11UY410   568  C~1C6M      
2012 10  21.35746  02 05 54.973  +16 21 11.27  24.5r 11UY410   568  C~1C6M      
2012 10  21.38354  02 05 54.832  +16 21 10.63  24.4r 11UY410   568  C~1C6M      
2013 01  14.33578  02 00 32.529  +15 51 45.74  24.9r 11UY410   568  C~1C6M      
2013 02  03.26131  02 00 59.238  +15 52 52.73  24.9r 11UY410   568  C~1C6M      

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     0.06       0.00     0.20
  2   0.0003     -4.09    -0.09       0.75     0.17
  3   0.1530  -3936.34     0.06     299.10     0.02
  4   0.1532  -3941.20     0.10     299.41     0.13
  5   0.1533  -3946.17     0.02     299.32    -0.14
  6   0.1555  -4016.32     0.01     301.44    -0.14
  7   0.1557  -4021.05    -0.02     301.74    -0.03
  8   0.1558  -4024.96    -0.06     301.89    -0.03
  9   0.1692  -4457.67    -0.03     314.15    -0.12
 10   0.1693  -4461.20     0.06     314.29    -0.11
 11   0.1695  -4466.70     0.10     314.41    -0.16
 12   0.2350  -6448.39    -0.05     340.43     0.14
 13   0.2542  -6945.18    -0.19     337.65     0.06
 14   0.9830   7142.30    -0.21     925.73     0.01
 15   0.9831   7142.06     0.01     925.96     0.10
 16   0.9859   7114.99    -0.03     933.97    -0.00
 17   0.9859   7114.59     0.06     934.17     0.06
 18   1.1333   3745.64     0.11    1262.42    -0.11
 19   1.1418   3476.29     0.16    1273.44     0.00
 20   1.1440   3403.58    -0.09    1276.00    -0.09
 21   1.1441   3401.30    -0.08    1276.14    -0.05
 22   1.1442   3399.18     0.11    1276.22    -0.06
 23   1.3768  -1569.49    -0.09    1206.19     0.06
 24   1.4313  -1184.63     0.05    1136.21     0.12

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.

11UY410    quality flag:3

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

axisobj        39.678    39.707    39.650
ecceobj         0.144     0.146     0.143
incobj          8.569     8.569     8.568
qmin           33.430    33.336    33.293
qmax           45.995    46.061    46.043
amean          39.458    39.458    39.458
amin           39.033    39.076    39.018
amax           39.915    39.890    39.950
emean           0.134     0.134     0.135
emin            0.114     0.112     0.115
emax            0.153     0.155     0.154
imean           8.517     8.631     8.362
imin            7.792     7.996     7.625
imax            9.198     9.294     9.104
excite_mean     0.200     0.201     0.198
fracstop        1.000     1.000     1.000
cjmean          3.006     3.006     3.007

libcent 0       179.7     180.2     179.5
libamp  0        81.3      69.5      92.1
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       182.9     183.9     184.2
kozaiamp        180.0     180.0     180.0