Orbit Fit and Astrometric record for 11UG412

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: 11UG412   
# Created Tue Oct 24 01:37:58 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   1.43y
# First observation: 2011/08/30
#  Last observation: 2013/02/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000193   0.023829   0.000005  -0.000000   0.023686   0.000000
# Chi-squared of fit:    11.99 DOF:   60 RMS:  0.11
# Min/Max residuals:    -0.22    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.539624E-05  2.374976E-02 -7.086735E-07 -3.305514E-07  2.387460E-02  3.579477E-03
# Covariance matrix:
  3.2536E-13  1.2211E-13 -3.0362E-15  2.3016E-15  3.9342E-13  1.8934E-11
  1.2211E-13  4.9889E-13 -3.2755E-15  2.2588E-15  4.5799E-13  2.6659E-11
 -3.0362E-15 -3.2755E-15  1.1210E-13 -1.1090E-13 -5.5815E-15 -2.6562E-13
  2.3016E-15  2.2588E-15 -1.1090E-13  1.8199E-13  4.1296E-15  1.7989E-13
  3.9342E-13  4.5799E-13 -5.5815E-15  4.1296E-15  7.3844E-13  3.7630E-11
  1.8934E-11  2.6659E-11 -2.6562E-13  1.7989E-13  3.7630E-11  2.2530E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.528095   33.869877    0.848059    0.023892   -0.541919  2455803.971736
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:           46.75017 +/-     0.174
Argument of Peri:       26.85845 +/-     0.356
Long of Asc Node:      303.98467 +/-     0.024
Inclination:             2.49568 +/-     0.000
Eccentricity:         0.15855324 +/-    0.0019
Semi-Major Axis:     46.78697799 +/-    0.0288
Time of Perihelion: 2440620.6801 +/-      54.6
Perihelion:          39.36875086 +/-    0.0918
Aphelion:            54.20520512 +/-    0.0947
Period (y)              320.0337 +/-      0.30
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.67029647 +/-    0.0013
Ecliptic Y           22.91985239 +/-    0.0008
Ecliptic Z            1.84753713 +/-    0.0001
Ecliptic XDOT        -0.00118051 +/-    0.0000
Ecliptic YDOT         0.00249531 +/-    0.0000
Ecliptic ZDOT         0.00001813 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.43940477 +/-    0.0011
Geocenter to KBO     41.88552643 +/-    0.0015
# Hcoef:  7.79

The following table shows the complete astrometric record for 11UG412. 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 (11UG412) followed by the observatory code and reference code for the source of the astrometry.

2011 08  30.47097  02 02 57.286  +15 11 06.39  24.3r 11UG412   568  C~1C6P      
2011 08  30.52337  02 02 57.172  +15 11 05.83  24.4r 11UG412   568  C~1C6P      
2011 08  30.56976  02 02 57.054  +15 11 05.59  23.6r 11UG412   568  C~1C6P      
2011 09  05.57158  02 02 42.379  +15 10 06.91  23.8r 11UG412   568  C~1C6P      
2011 10  25.31577  01 59 24.155  +14 53 59.42  23.6r 11UG412   568  C~1C6P      
2011 10  25.36423  01 59 23.919  +14 53 58.11  23.7r 11UG412   568  C~1C6P      
2011 10  25.41871  01 59 23.654  +14 53 56.82  23.7r 11UG412   568  C~1C6P      
2011 10  25.47315  01 59 23.396  +14 53 55.48  23.7r 11UG412   568  C~1C6P      
2011 10  26.26973  01 59 19.683  +14 53 35.38  24.0r 11UG412   568  C~1C6Q      
2011 10  26.32241  01 59 19.431  +14 53 34.19  23.8r 11UG412   568  C~1C6Q      
2011 10  26.36558  01 59 19.220  +14 53 33.12  23.9r 11UG412   568  C~1C6Q      
2011 10  31.54671  01 58 54.935  +14 51 22.66  23.7r 11UG412   568  C~1C6Q      
2011 11  24.30055  01 57 11.107  +14 41 37.25  24.0r 11UG412   568  C~1C6Q      
2011 11  24.30481  01 57 11.095  +14 41 37.17  23.9r 11UG412   568  C~1C6Q      
2011 11  30.34681  01 56 48.332  +14 39 21.72        11UG412   568  C~1C6Q      
2012 01  26.27207  01 55 32.317  +14 29 14.99  24.0r 11UG412   568  C~1C6Q      
2012 01  27.32916  01 55 33.693  +14 29 18.29  24.2r 11UG412   568  C~1C6Q      
2012 02  21.23747  01 56 35.280  +14 33 19.23  23.8r 11UG412   568  C~1C6Q      
2012 08  17.55584  02 08 35.030  +15 39 45.16  23.8r 11UG412   568  C~1C6Q      
2012 08  22.61130  02 08 28.435  +15 39 29.59  24.2r 11UG412   568  C~1C6Q      
2012 08  23.53343  02 08 27.020  +15 39 25.34  24.1r 11UG412   568  C~1C6Q      
2012 08  23.54629  02 08 26.987  +15 39 25.10  23.8r 11UG412   568  C~1C6Q      
2012 08  24.48353  02 08 25.470  +15 39 20.49  23.8r 11UG412   568  C~1C6Q      
2012 08  24.56913  02 08 25.316  +15 39 19.90  24.1r 11UG412   568  C~1C6Q      
2012 10  21.31465  02 05 00.799  +15 23 38.58  23.9r 11UG412   568  C~1C6Q      
2012 10  21.33175  02 05 00.724  +15 23 38.16  23.9r 11UG412   568  C~1C6Q      
2012 10  21.34035  02 05 00.682  +15 23 38.03  23.8r 11UG412   568  C~1C6Q      
2012 10  21.35746  02 05 00.593  +15 23 37.51  24.1r 11UG412   568  C~1C6Q      
2012 10  21.36603  02 05 00.551  +15 23 37.35  24.1r 11UG412   568  C~1C6Q      
2012 10  21.38354  02 05 00.471  +15 23 37.04  24.0r 11UG412   568  C~1C6Q      
2013 01  14.34100  02 00 38.541  +14 57 25.51  23.9r 11UG412   568  C~1C6Q      
2013 02  02.25091  02 00 56.610  +14 57 47.61  23.9r 11UG412   568  C~1C6Q      
2013 02  03.25659  02 00 58.508  +14 57 53.78        11UG412   568  C~1C6Q      

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     0.15
  2   0.0001     -1.74     0.10       0.04    -0.00
  3   0.0003     -3.43    -0.00       0.40     0.19
  4   0.0167   -223.13     0.05      18.00    -0.13
  5   0.1529  -3252.52     0.03      98.20    -0.03
  6   0.1530  -3256.18    -0.08      98.16    -0.10
  7   0.1532  -3260.24    -0.12      98.28    -0.01
  8   0.1533  -3264.21    -0.08      98.31    -0.00
  9   0.1555  -3321.68    -0.00      98.08    -0.20
 10   0.1557  -3325.52     0.02      98.23    -0.08
 11   0.1558  -3328.76    -0.05      98.28    -0.05
 12   0.1700  -3704.33    -0.22      97.82     0.11
 13   0.2350  -5320.61     0.07      72.06    -0.01
 14   0.2350  -5320.80     0.15      72.04    -0.02
 15   0.2515  -5677.86    -0.05      60.20     0.13
 16   0.4074  -6925.01     0.10    -122.86    -0.11
 17   0.4103  -6905.11     0.10    -126.76    -0.12
 18   0.4785  -5982.10    -0.11    -213.55     0.09
 19   0.9667   5178.24    -0.09     -39.52    -0.09
 20   0.9805   5083.24    -0.09     -22.16     0.34
 21   0.9831   5062.55     0.09     -19.29     0.23
 22   0.9831   5062.02    -0.13     -19.36     0.11
 23   0.9857   5039.82     0.05     -16.33     0.13
 24   0.9859   5037.52    -0.05     -16.14    -0.00
 25   1.1440   1936.57     0.05      97.46    -0.07
 26   1.1440   1935.41     0.13      97.44    -0.11
 27   1.1441   1934.79     0.14      97.52    -0.04
 28   1.1441   1933.40    -0.00      97.47    -0.10
 29   1.1441   1932.78    -0.00      97.53    -0.05
 30   1.1442   1931.58     0.08      97.63     0.03
 31   1.3768  -2169.36     0.08     -80.73     0.07
 32   1.4286  -1915.90    -0.11    -150.20    -0.08
 33   1.4313  -1887.95    -0.13    -153.88    -0.15

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.

11UG412    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.897    46.985    46.813
ecceobj         0.160     0.166     0.155
incobj          2.496     2.496     2.496
qmin           38.550    38.376    38.738
qmax           54.843    55.198    54.492
amean          46.518    46.598    46.436
amin           46.113    46.194    46.038
amax           46.980    47.092    46.904
emean           0.155     0.160     0.150
emin            0.141     0.147     0.136
emax            0.168     0.173     0.163
imean           4.097     4.095     4.093
imin            3.539     3.521     3.549
imax            4.534     4.546     4.527
excite_mean     0.171     0.175     0.166
fracstop        1.000     1.000     1.000
cjmean          3.096     3.095     3.097

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
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       175.5     175.3     175.3
kozaiamp        180.0     179.9     179.9