Orbit Fit and Astrometric record for 11UJ411

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: 11UJ411   
# Created Wed Oct 18 01:37:58 2017
# Orbit generated from Bernstein formalism
# Fitting   21 observations of   21
# Arc:   1.43y
# First observation: 2011/08/29
#  Last observation: 2013/02/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000177   0.029393   0.000010   0.002554   0.027032   0.000000
# Chi-squared of fit:     9.73 DOF:   36 RMS:  0.12
# Min/Max residuals:    -0.28    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.673623E-05  2.920429E-02  1.916265E-06  2.575556E-03  2.706601E-02 -3.973529E-04
# Covariance matrix:
  4.4788E-13  2.2634E-13 -1.3581E-14  8.3845E-14  5.4840E-13  2.3319E-11
  2.2634E-13  7.8270E-13 -1.9748E-14  1.2515E-13  7.0539E-13  3.5067E-11
 -1.3581E-14 -1.9748E-14  1.4900E-13 -1.4898E-13 -2.6190E-14 -1.3611E-12
  8.3845E-14  1.2515E-13 -1.4898E-13  2.9511E-13  1.6315E-13  8.7352E-12
  5.4840E-13  7.0539E-13 -2.6190E-14  1.6315E-13  1.0160E-12  4.5492E-11
  2.3319E-11  3.5067E-11 -1.3611E-12  8.7352E-12  4.5492E-11  2.4561E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.909275   32.909124    0.847681    0.008596   -0.543405  2455803.042626
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          345.39949 +/-     0.629
Argument of Peri:       28.89078 +/-     0.825
Long of Asc Node:       21.58486 +/-     0.002
Inclination:             5.13194 +/-     0.001
Eccentricity:         0.12475120 +/-    0.0006
Semi-Major Axis:     42.59444366 +/-    0.0074
Time of Perihelion: 2459918.5653 +/-     177.5
Perihelion:          37.28073583 +/-    0.0258
Aphelion:            47.90815149 +/-    0.0263
Period (y)              277.9954 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.93427269 +/-    0.0012
Ecliptic Y           19.65575978 +/-    0.0007
Ecliptic Z            0.58640532 +/-    0.0000
Ecliptic XDOT        -0.00164537 +/-    0.0000
Ecliptic YDOT         0.00246143 +/-    0.0000
Ecliptic ZDOT         0.00025992 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.50320701 +/-    0.0011
Geocenter to KBO     36.94671248 +/-    0.0014
# Hcoef:  8.47

The following table shows the complete astrometric record for 11UJ411. 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 (11UJ411) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.54186  02 01 31.259  +13 20 06.82        11UJ411   568  C~1C6N      
2011 08  29.58893  02 01 31.136  +13 20 06.13        11UJ411   568  C~1C6N      
2011 09  05.52844  02 01 12.476  +13 18 46.27  24.2r 11UJ411   568  C~1C6N      
2011 10  24.40337  01 57 35.466  +13 01 11.57  24.1r 11UJ411   568  C~1C6N      
2011 10  24.44610  01 57 35.238  +13 01 10.37  24.1r 11UJ411   568  C~1C6N      
2011 10  24.48881  01 57 35.006  +13 01 09.23  23.7r 11UJ411   568  C~1C6N      
2011 10  26.42314  01 57 24.872  +13 00 17.42  23.9r 11UJ411   568  C~1C6N      
2011 10  30.52869  01 57 03.403  +12 58 27.40  24.2r 11UJ411   568  C~1C6N      
2011 10  31.51164  01 56 58.307  +12 58 01.20  23.9r 11UJ411   568  C~1C6N      
2011 11  24.29629  01 55 02.730  +12 47 58.27  24.2r 11UJ411   568  C~1C6N      
2011 11  30.34253  01 54 37.599  +12 45 45.09  24.0r 11UJ411   568  C~1C6N      
2011 11  30.35120  01 54 37.561  +12 45 45.05  23.8r 11UJ411   568  C~1C6N      
2012 01  26.26707  01 53 17.619  +12 38 31.21  24.3r 11UJ411   568  C~1C6N      
2012 08  17.56010  02 08 07.896  +14 03 46.46        11UJ411   568  C~1C6N      
2012 08  22.61568  02 08 00.676  +14 03 25.36  24.0r 11UJ411   568  C~1C6N      
2012 08  24.51776  02 07 57.344  +14 03 13.88        11UJ411   568  C~1C6N      
2012 10  17.36532  02 04 29.041  +13 47 22.26  23.8r 11UJ411   568  C~1C6N      
2012 10  20.46016  02 04 12.902  +13 46 02.60  23.8r 11UJ411   568  C~1C6N      
2013 01  14.35870  01 59 17.586  +13 20 27.99  24.4r 11UJ411   568  C~1C6N      
2013 02  02.24144  01 59 39.536  +13 22 17.81  24.3r 11UJ411   568  C~1C6N      
2013 02  03.24708  01 59 41.758  +13 22 29.19  24.1r 11UJ411   568  C~1C6N      

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     0.07       0.00    -0.08
  2   0.0001     -1.92    -0.10      -0.03    -0.27
  3   0.0191   -285.15     0.02      18.48    -0.28
  4   0.1529  -3624.35     0.11     122.73     0.13
  5   0.1531  -3627.89     0.09     122.76     0.08
  6   0.1532  -3631.47     0.03     122.87     0.10
  7   0.1585  -3788.40    -0.14     125.66     0.04
  8   0.1697  -4120.99    -0.24     131.44    -0.00
  9   0.1724  -4199.98     0.03     132.75    -0.01
 10   0.2375  -5995.27    -0.12     156.26     0.01
 11   0.2541  -6386.62     0.16     159.92     0.01
 12   0.2541  -6387.15     0.17     160.08     0.15
 13   0.4099  -7636.23    -0.11     163.35     0.18
 14   0.9692   6328.58    -0.15     498.31    -0.01
 15   0.9831   6222.46     0.01     513.83     0.17
 16   0.9883   6172.90     0.16     519.36     0.05
 17   1.1357   2995.43    -0.08     650.97     0.04
 18   1.1442   2747.19     0.09     656.12    -0.08
 19   1.3794  -1824.52     0.13     691.54    -0.13
 20   1.4311  -1485.94    -0.04     684.04     0.01
 21   1.4338  -1451.57    -0.10     683.54    -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.

11UJ411    quality flag:3

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

axisobj        42.685    42.700    42.672
ecceobj         0.126     0.127     0.125
incobj          5.128     5.128     5.128
qmin           36.762    36.726    36.786
qmax           48.246    48.265    48.243
amean          42.330    42.330    42.330
amin           41.981    41.964    41.977
amax           42.713    42.726    42.705
emean           0.113     0.114     0.113
emin            0.096     0.097     0.096
emax            0.131     0.131     0.131
imean           4.856     4.843     4.842
imin            3.987     3.993     3.973
imax            5.736     5.696     5.770
excite_mean     0.142     0.142     0.141
fracstop        1.000     1.000     1.000
cjmean          3.058     3.058     3.058

libcent 0       180.1     179.4     179.9
libamp  0        30.1      39.5      26.9
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       185.3     182.3     185.5
kozaiamp        180.0     180.0     180.0