Orbit Fit and Astrometric record for 11UJ413

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: 11UJ413   
# Created Wed Dec 13 02:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   14 observations of   14
# Arc:   1.13y
# First observation: 2011/10/23
#  Last observation: 2012/12/09
Preliminary a, adot, b, bdot, g, gdot:
  -0.000013   0.034746  -0.000003   0.002903   0.027760   0.000000
# Chi-squared of fit:    16.61 DOF:   22 RMS:  0.19
# Min/Max residuals:    -0.52    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.951651E-05  3.468417E-02  2.744235E-07  2.897858E-03  2.764941E-02  4.469738E-03
# Covariance matrix:
  3.5396E-13  7.1129E-13  2.1500E-14  6.5263E-14  6.9294E-13  3.0268E-11
  7.1129E-13  2.4645E-11  1.5466E-13  1.6086E-12  8.4296E-12  8.2956E-10
  2.1500E-14  1.5466E-13  1.7127E-13 -1.7025E-13  9.3519E-14  5.2737E-12
  6.5263E-14  1.6086E-12 -1.7025E-13  6.1786E-13  5.7630E-13  5.5273E-11
  6.9294E-13  8.4296E-12  9.3519E-14  5.7630E-13  3.8985E-12  2.8872E-10
  3.0268E-11  8.2956E-10  5.2737E-12  5.5273E-11  2.8872E-10  2.8515E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
  -17.153403   72.481880    0.675100   -0.214167   -0.693875  2455857.952526
# Heliocentric elements and errors
Epoch:              2455850.5000  =  2011/10/16
Mean Anomaly:            5.12187 +/-     0.195
Argument of Peri:      265.63012 +/-     0.748
Long of Asc Node:      146.43378 +/-     0.008
Inclination:            17.37081 +/-     0.001
Eccentricity:         0.51789557 +/-    0.0027
Semi-Major Axis:     75.10439178 +/-    0.3028
Time of Perihelion: 2452468.1166 +/-     127.1
Perihelion:          36.20816014 +/-    0.2495
Aphelion:           114.00062343 +/-    0.5022
Period (y)              650.8879 +/-      3.94
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           11.26754241 +/-    0.0008
Ecliptic Y           33.44610323 +/-    0.0023
Ecliptic Z          -10.66681053 +/-    0.0008
Ecliptic XDOT        -0.00312600 +/-    0.0000
Ecliptic YDOT         0.00152290 +/-    0.0000
Ecliptic ZDOT         0.00014372 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.86977326 +/-    0.0022
Geocenter to KBO     36.16713290 +/-    0.0026
# Hcoef:  6.89

The following table shows the complete astrometric record for 11UJ413. 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 (11UJ413) followed by the observatory code and reference code for the source of the astrometry.

2011 10  23.45176  04 52 50.763  +05 16 14.63  22.7w 11UJ413   F51  C~1w3o      
2011 10  23.46663  04 52 50.708  +05 16 14.05  22.8w 11UJ413   F51  C~1w3o      
2011 10  23.48152  04 52 50.661  +05 16 13.63  22.8w 11UJ413   F51  C~1w3o      
2011 10  23.49646  04 52 50.600  +05 16 13.20  22.8w 11UJ413   F51  C~1w3o      
2011 12  01.34466  04 49 51.529  +05 04 37.23  22.7w 11UJ413   F51  C~1w3o      
2011 12  01.35853  04 49 51.443  +05 04 36.90  23.2w 11UJ413   F51  C~1w3o      
2011 12  01.37240  04 49 51.369  +05 04 37.07  23.1w 11UJ413   F51  C~1w3o      
2011 12  01.38618  04 49 51.304  +05 04 36.84  22.9w 11UJ413   F51  C~1w3o      
2011 12  16.38697  04 48 31.432  +05 03 08.22  22.2r 11UJ413   F51  C~1w3o      
2011 12  16.41305  04 48 31.293  +05 03 08.31  22.0i 11UJ413   F51  C~1w3o      
2012 11  08.54069  04 59 34.621  +05 34 13.61  21.9r 11UJ413   F51  C~1w3o      
2012 11  08.54700  04 59 34.538  +05 34 13.27  21.9r 11UJ413   F51  C~1w3o      
2012 11  08.55412  04 59 34.551  +05 34 13.82  21.4r 11UJ413   F51  C~1w3o      
2012 12  09.40336  04 56 57.854  +05 27 52.08  22.4w 11UJ413   F51  C~1w3o      

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     0.29
  2   0.0000     -0.89    -0.00      -0.48     0.07
  3   0.0001     -1.63     0.07      -0.81     0.00
  4   0.0001     -2.59    -0.07      -1.13    -0.05
  5   0.1065  -2742.37     0.00    -368.79     0.00
  6   0.1065  -2743.68    -0.18    -368.96    -0.17
  7   0.1066  -2744.76    -0.13    -368.65     0.13
  8   0.1066  -2745.75     0.00    -368.76     0.02
  9   0.1477  -3941.39     0.11    -311.53    -0.21
 10   0.1477  -3943.44     0.13    -311.19    -0.08
 11   1.0461   6118.07     0.31     354.51    -0.22
 12   1.0461   6116.80    -0.52     354.32    -0.34
 13   1.0461   6117.06     0.24     354.84     0.26
 14   1.1306   3747.41    -0.03     251.84     0.32

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.

11UJ413    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        75.622    76.711    74.638
ecceobj         0.521     0.530     0.513
incobj         17.364    17.362    17.365
qmin           35.551    35.251    35.686
qmax          115.212   117.594   113.197
amean          74.360    75.233    73.320
amin           73.186    74.165    72.286
amax           75.937    76.845    74.812
emean           0.507     0.516     0.502
emin            0.492     0.501     0.492
emax            0.521     0.531     0.513
imean          16.987    16.906    16.291
imin           16.048    16.023    15.980
imax           17.827    17.940    16.552
excite_mean     0.585     0.592     0.575
fracstop        1.000     1.000     1.000
cjmean          2.996     2.992     3.000

libcent 0      -180.0    -180.0     179.3
libamp  0      -180.0    -180.0     175.0
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       196.7     195.8     160.8
kozaiamp        180.0     180.0     180.0