Orbit Fit and Astrometric record for 11UO411

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: 11UO411   
# Created Thu Dec 14 02:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   1.44y
# First observation: 2011/08/30
#  Last observation: 2013/02/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000168   0.035612   0.000013   0.000507   0.029853   0.000000
# Chi-squared of fit:     5.51 DOF:   46 RMS:  0.08
# Min/Max residuals:    -0.17    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.866286E-05  3.548086E-02  7.990344E-07  5.063912E-04  3.002841E-02 -1.149642E-03
# Covariance matrix:
  3.4847E-13  3.1674E-13 -5.7957E-15  1.2154E-14  4.6576E-13  1.9069E-11
  3.1674E-13  1.5898E-12 -1.2513E-14  2.7593E-14  1.1182E-12  5.5814E-11
 -5.7957E-15 -1.2513E-14  1.3448E-13 -1.3936E-13 -1.2666E-14 -5.2337E-13
  1.2154E-14  2.7593E-14 -1.3936E-13  2.4884E-13  2.7024E-14  1.1529E-12
  4.6576E-13  1.1182E-12 -1.2666E-14  2.7024E-14  1.0564E-12  4.6676E-11
  1.9069E-11  5.5814E-11 -5.2337E-13  1.1529E-12  4.6676E-11  2.3220E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.296644   31.219296    0.821781    0.053645   -0.578990  2455803.999576
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          348.03684 +/-     0.263
Argument of Peri:       98.47151 +/-     0.422
Long of Asc Node:      310.09414 +/-     0.009
Inclination:             5.28815 +/-     0.000
Eccentricity:         0.21217685 +/-    0.0005
Semi-Major Axis:     42.62522151 +/-    0.0096
Time of Perihelion: 2459178.3609 +/-      74.2
Perihelion:          33.58113640 +/-    0.0220
Aphelion:            51.66930662 +/-    0.0237
Period (y)              278.2968 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.28433057 +/-    0.0010
Ecliptic Y           16.78696185 +/-    0.0006
Ecliptic Z            3.07421438 +/-    0.0001
Ecliptic XDOT        -0.00177280 +/-    0.0000
Ecliptic YDOT         0.00271561 +/-    0.0000
Ecliptic ZDOT         0.00003636 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.89431957 +/-    0.0009
Geocenter to KBO     33.30179182 +/-    0.0011
# Hcoef:  8.75

The following table shows the complete astrometric record for 11UO411. 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 (11UO411) followed by the observatory code and reference code for the source of the astrometry.

2011 08  30.49881  01 48 37.308  +16 51 26.14  23.6r 11UO411   568  C~1C6O      
2011 08  30.54538  01 48 37.154  +16 51 25.90  23.8r 11UO411   568  C~1C6O      
2011 08  30.59180  01 48 37.020  +16 51 25.39  24.0r 11UO411   568  C~1C6O      
2011 09  05.59321  01 48 17.573  +16 50 29.83  24.2r 11UO411   568  C~1C6O      
2011 10  25.34230  01 44 08.044  +16 31 14.00  23.8r 11UO411   568  C~1C6O      
2011 10  25.39116  01 44 07.767  +16 31 12.60  23.8r 11UO411   568  C~1C6O      
2011 10  26.29124  01 44 02.631  +16 30 43.95  23.9r 11UO411   568  C~1C6O      
2011 10  26.34391  01 44 02.327  +16 30 42.29  23.9r 11UO411   568  C~1C6O      
2011 10  26.38701  01 44 02.079  +16 30 40.91  23.8r 11UO411   568  C~1C6O      
2011 10  31.39270  01 43 33.688  +16 28 00.01  23.9r 11UO411   568  C~1C6O      
2011 11  24.24087  01 41 30.641  +16 15 14.61        11UO411   568  C~1C6O      
2011 11  26.46073  01 41 20.821  +16 14 07.32  23.9r 11UO411   568  C~1C6O      
2012 01  25.29729  01 40 02.523  +15 58 02.84  23.8r 11UO411   568  C~1C6O      
2012 01  26.28211  01 40 04.676  +15 58 05.18  23.9r 11UO411   568  C~1C6O      
2012 01  27.21609  01 40 06.825  +15 58 08.00  24.0r 11UO411   568  C~1C6O      
2012 08  17.57715  01 57 00.812  +17 36 24.41  23.9r 11UO411   568  C~1C6O      
2012 08  23.57113  01 56 49.866  +17 36 23.70  24.1r 11UO411   568  C~1C6O      
2012 08  23.58144  01 56 49.833  +17 36 23.92  24.1r 11UO411   568  C~1C6O      
2012 08  24.40933  01 56 48.045  +17 36 21.91  24.0r 11UO411   568  C~1C6O      
2012 08  24.45714  01 56 47.934  +17 36 21.76        11UO411   568  C~1C6O      
2012 08  24.53489  01 56 47.752  +17 36 21.67  23.9r 11UO411   568  C~1C6O      
2012 08  27.55400  01 56 40.501  +17 36 10.91  24.2r 11UO411   568  C~1C6O      
2012 10  17.38245  01 52 50.814  +17 20 37.02        11UO411   568  C~1C6O      
2012 10  20.47747  01 52 32.988  +17 19 05.33  23.7r 11UO411   568  C~1C6O      
2013 02  03.29696  01 48 10.011  +16 43 30.21  24.6r 11UO411   568  C~1C6O      
2013 02  06.26716  01 48 19.511  +16 43 53.48  23.8r 11UO411   568  C~1C6O      

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     0.00       0.00    -0.11
  2   0.0001     -2.15    -0.12       0.56     0.04
  3   0.0003     -4.13    -0.06       0.77    -0.16
  4   0.0167   -284.82     0.08      48.13     0.02
  5   0.1529  -4046.84    -0.09     253.64     0.06
  6   0.1530  -4051.07     0.06     253.77     0.15
  7   0.1555  -4130.32     0.01     253.69     0.13
  8   0.1556  -4135.00     0.03     253.72     0.12
  9   0.1558  -4138.82     0.06     253.72     0.10
 10   0.1695  -4577.92     0.18     251.13     0.10
 11   0.2347  -6507.30    -0.08     179.84    -0.03
 12   0.2408  -6663.67    -0.04     168.60    -0.12
 13   0.4047  -8067.84    -0.01    -318.39    -0.12
 14   0.4073  -8038.04     0.00    -327.56    -0.08
 15   0.4099  -8008.11    -0.02    -336.26    -0.06
 16   0.9667   7705.17     0.04      -0.51    -0.08
 17   0.9831   7557.86     0.01      52.92    -0.17
 18   0.9831   7557.49    -0.04      53.29     0.10
 19   0.9854   7532.77     0.04      60.24    -0.03
 20   0.9855   7531.23     0.01      60.65    -0.07
 21   0.9857   7528.75     0.03      61.46     0.02
 22   0.9940   7427.62    -0.12      87.21     0.01
 23   1.1332   4019.03    -0.05     355.56    -0.05
 24   1.1416   3747.74     0.08     359.16     0.07
 25   1.4313   -535.66     0.05    -305.36     0.10
 26   1.4395   -399.84    -0.06    -332.18     0.07

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.

11UO411    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.713    42.727    42.700
ecceobj         0.213     0.214     0.213
incobj          5.288     5.288     5.288
qmin           33.191    33.175    33.199
qmax           51.877    51.892    51.861
amean          42.327    42.327    42.327
amin           41.972    41.958    41.972
amax           42.765    42.772    42.756
emean           0.199     0.199     0.198
emin            0.185     0.185     0.184
emax            0.214     0.215     0.213
imean           6.957     6.962     6.958
imin            6.533     6.507     6.538
imax            7.481     7.495     7.486
excite_mean     0.233     0.233     0.233
fracstop        1.000     1.000     1.000
cjmean          3.018     3.018     3.018

libcent 0       179.4     180.4     179.4
libamp  0        17.5      25.9      18.0
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       166.2     164.7     166.6
kozaiamp        180.0     180.0     180.0