Orbit Fit and Astrometric record for 10LB136

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: 10LB136   
# Created Fri Dec 15 02:37:34 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:   3.08y
# First observation: 2010/06/04
#  Last observation: 2013/07/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000263   0.045365   0.000027  -0.008510   0.035976   0.000000
# Chi-squared of fit:     3.92 DOF:   24 RMS:  0.09
# Min/Max residuals:    -0.14    0.32
# Exact a, adot, b, bdot, g, gdot:
  2.038121E-05  4.477409E-02 -3.975379E-06 -8.465620E-03  3.517632E-02 -2.896925E-03
# Covariance matrix:
  3.5597E-13 -4.4004E-13 -1.7196E-14  5.1179E-14 -2.8218E-13 -2.2689E-12
 -4.4004E-13  1.0363E-12  5.3767E-14 -1.6064E-13  7.6789E-13  7.0787E-12
 -1.7196E-14  5.3767E-14  2.5444E-13 -1.4047E-13  2.4866E-14  4.9283E-13
  5.1179E-14 -1.6064E-13 -1.4047E-13  1.4326E-13 -6.9548E-14 -1.4924E-12
 -2.8218E-13  7.6789E-13  2.4866E-14 -6.9548E-14  1.2226E-12  3.3915E-12
 -2.2689E-12  7.0787E-12  4.9283E-13 -1.4924E-12  3.3915E-12  6.4389E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    9.602332  -87.559536    0.331107    0.159761   -0.944713  2455352.004966
# Heliocentric elements and errors
Epoch:              2455350.5000  =  2010/06/03
Mean Anomaly:          348.29092 +/-     0.025
Argument of Peri:      159.09669 +/-     0.046
Long of Asc Node:      132.54598 +/-     0.001
Inclination:            14.06679 +/-     0.000
Eccentricity:         0.26526178 +/-    0.0001
Semi-Major Axis:     39.44165998 +/-    0.0061
Time of Perihelion: 2458293.2366 +/-       6.3
Perihelion:          28.97929513 +/-    0.0062
Aphelion:            49.90402482 +/-    0.0088
Period (y)              247.7085 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            0.90821377 +/-    0.0000
Ecliptic Y          -28.97786915 +/-    0.0009
Ecliptic Z            4.74201812 +/-    0.0001
Ecliptic XDOT         0.00347844 +/-    0.0000
Ecliptic YDOT         0.00026673 +/-    0.0000
Ecliptic ZDOT        -0.00068732 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.37734652 +/-    0.0009
Geocenter to KBO     28.42821589 +/-    0.0009
# Hcoef:  6.70

The following table shows the complete astrometric record for 10LB136. 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 (10LB136) followed by the observatory code and reference code for the source of the astrometry.

2010 06  04.50420  18 09 54.717  -13 48 57.49  20.5i 10LB136   F51  C~1w3i      
2010 06  04.51533  18 09 54.643  -13 48 57.54  20.3i 10LB136   F51  C~1w3i      
2010 06  06.52982  18 09 41.996  -13 48 57.35  20.8r 10LB136   F51  C~1w3i      
2010 06  06.54257  18 09 41.912  -13 48 57.38  21.1r 10LB136   F51  C~1w3i      
2011 05  29.54469  18 21 10.789  -14 14 31.53  22.1g 10LB136   F51  C~1w3i      
2011 05  29.56037  18 21 10.665  -14 14 31.50  22.0g 10LB136   F51  C~1w3i      
2011 06  02.45111  18 20 47.819  -14 14 29.78  21.7g 10LB136   F51  C~1w3i      
2011 06  02.46220  18 20 47.754  -14 14 29.71  21.7g 10LB136   F51  C~1w3i      
2011 06  02.47408  18 20 47.688  -14 14 29.91  20.8r 10LB136   F51  C~1w3i      
2011 06  02.48464  18 20 47.610  -14 14 29.92  20.8r 10LB136   F51  C~1w3i      
2012 08  08.34531  18 24 32.892  -14 51 24.34  21.2g 10LB136   F51  C~1w3i      
2012 08  08.35561  18 24 32.843  -14 51 24.44  21.2g 10LB136   F51  C~1w3i      
2012 08  08.36658  18 24 32.798  -14 51 24.78  21.1r 10LB136   F51  C~1w3i      
2012 08  08.37669  18 24 32.745  -14 51 25.00  20.8r 10LB136   F51  C~1w3i      
2013 07  04.39985  18 38 51.912  -15 04 43.14  21.6g 10LB136   F51  C~1w3i      

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    -0.05       0.00     0.04
  2   0.0000     -1.08    -0.10      -0.03    -0.02
  3   0.0055   -185.26     0.09       3.35    -0.02
  4   0.0056   -186.49     0.06       3.34    -0.04
  5   0.9830   9807.60     0.32   -1764.91     0.07
  6   0.9830   9805.80    -0.14   -1764.83     0.09
  7   0.9937   9473.09    -0.07   -1753.34     0.02
  8   0.9937   9472.14    -0.03   -1753.25     0.10
  9   0.9938   9471.18     0.06   -1753.42    -0.10
 10   0.9938   9470.04    -0.13   -1753.40    -0.10
 11   2.1789  12680.99    -0.04   -4073.51    -0.01
 12   2.1789  12680.27    -0.03   -4073.59     0.09
 13   2.1790  12679.60     0.07   -4073.91    -0.04
 14   2.1790  12678.83     0.00   -4074.10    -0.06
 15   3.0825  25198.57    -0.01   -5402.95    -0.02

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.

10LB136    quality flag:3

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

axisobj        39.083    39.099    39.067
ecceobj         0.260     0.260     0.260
incobj         14.081    14.081    14.081
qmin           27.790    27.849    27.951
qmax           51.872    51.845    51.705
amean          39.455    39.455    39.455
amin           38.945    38.974    38.946
amax           40.075    40.035    40.049
emean           0.271     0.270     0.270
emin            0.251     0.249     0.251
emax            0.295     0.295     0.292
imean          12.278    12.466    12.376
imin           11.229    11.487    11.424
imax           13.079    13.120    13.279
excite_mean     0.345     0.346     0.345
fracstop        1.000     1.000     1.000
cjmean          2.916     2.916     2.917

libcent 0       179.3     179.5     180.5
libamp  0       102.3      97.5     105.6
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       201.6     192.3     201.0
kozaiamp        180.0     180.0     180.0