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 Thu Oct 18 01:08:55 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   45 observations of   45
# Arc:   7.96y
# First observation: 2010/06/04
#  Last observation: 2018/05/21
# Chi-squared of fit:    13.18 DOF:   84 RMS:  0.10
# Min/Max residuals:    -0.19    0.41
# Exact a, adot, b, bdot, g, gdot:
  2.050698E-05  4.477422E-02 -4.234636E-06 -8.465388E-03  3.517592E-02 -2.891135E-03
# Covariance matrix:
  1.2326E-13 -5.0172E-14 -5.5410E-15  6.9045E-15  3.7194E-15 -9.9886E-14
 -5.0172E-14  7.0734E-14  1.1659E-14 -1.3120E-14  6.0853E-14  1.9064E-13
 -5.5410E-15  1.1659E-14  9.1830E-14 -1.6860E-14  1.2152E-14  3.3170E-14
  6.9045E-15 -1.3120E-14 -1.6860E-14  6.1794E-15 -1.2025E-14 -3.7270E-14
  3.7194E-15  6.0853E-14  1.2152E-14 -1.2025E-14  1.4383E-13  1.7582E-13
 -9.9886E-14  1.9064E-13  3.3170E-14 -3.7270E-14  1.7582E-13  5.4159E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    9.602332  -87.559536    0.331107    0.159761   -0.944713  2455352.004966
# Heliocentric elements and errors
Epoch:              2455352.5000  =  2010/06/05
Mean Anomaly:          348.31888 +/-     0.002
Argument of Peri:      159.06055 +/-     0.004
Long of Asc Node:      132.54696 +/-     0.000
Inclination:            14.06650 +/-     0.000
Eccentricity:         0.26525307 +/-    0.0000
Semi-Major Axis:     39.44345620 +/-    0.0022
Time of Perihelion: 2458288.4098 +/-       7.4
Perihelion:          28.98095837 +/-    0.0021
Aphelion:            49.90595402 +/-    0.0031
Period (y)              247.7255 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            0.90823085 +/-    0.0000
Ecliptic Y          -28.97818587 +/-    0.0003
Ecliptic Z            4.74206430 +/-    0.0001
Ecliptic XDOT         0.00347851 +/-    0.0000
Ecliptic YDOT         0.00026630 +/-    0.0000
Ecliptic ZDOT        -0.00068723 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.37771040 +/-    0.0003
Geocenter to KBO     28.42860482 +/-    0.0003
# Hcoef:  6.42

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      
2010 07  20.29036  18 04 58.835  -13 54 26.53  20.9G 10LB136   F51  C~2jgo      
2010 07  20.30221  18 04 58.769  -13 54 26.64  20.9G 10LB136   F51  C~2jgo      
2010 09  02.23013  18 02 14.324  -14 08 40.95  21.4G 10LB136   F51  C~2jgo      
2010 09  02.24107  18 02 14.311  -14 08 41.18  21.2G 10LB136   F51  C~2jgo      
2011 05  23.50329  18 21 44.121  -14 14 44.09  20.8G 10LB136   F51  C~2jgo      
2011 05  23.51498  18 21 44.061  -14 14 44.14  20.5G 10LB136   F51  C~2jgo      
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  01.45174  18 39 11.797  -15 04 06.19  20.5G 10LB136   F51  C~2jgo      
2013 07  01.46235  18 39 11.724  -15 04 06.25  20.6G 10LB136   F51  C~2jgo      
2013 07  04.39985  18 38 51.912  -15 04 43.14  21.6g 10LB136   F51  C~1w3i      
2016 05  16.53928  19 16 19.076  -15 53 46.46  20.9G 10LB136   F51  C~2jgo      
2016 05  16.55093  19 16 19.041  -15 53 46.49  20.8G 10LB136   F51  C~2jgo      
2016 05  16.57418  19 16 18.958  -15 53 46.62  20.8G 10LB136   F51  C~2jgo      
2016 08  07.34002  19 08 12.886  -16 12 47.09        10LB136   F51  C~2jgo      
2016 08  07.35213  19 08 12.818  -16 12 47.24        10LB136   F51  C~2jgo      
2016 08  07.36423  19 08 12.752  -16 12 47.42  20.7G 10LB136   F51  C~2jgo      
2016 08  07.37639  19 08 12.675  -16 12 47.73  20.7G 10LB136   F51  C~2jgo      
2016 08  31.28546  19 06 24.164  -16 21 37.99  20.6G 10LB136   F51  C~2jgo      
2016 08  31.29735  19 06 24.124  -16 21 38.24  20.7G 10LB136   F51  C~2jgo      
2016 08  31.30922  19 06 24.079  -16 21 38.50  20.9G 10LB136   F51  C~2jgo      
2016 08  31.32108  19 06 24.042  -16 21 38.83  20.9G 10LB136   F51  C~2jgo      
2017 05  04.57628  19 27 44.965  -16 07 28.36  21.0G 10LB136   F51  C~2jgo      
2017 05  04.58192  19 27 44.961  -16 07 28.41  20.9G 10LB136   F51  C~2jgo      
2017 05  04.58753  19 27 44.952  -16 07 28.38  20.8G 10LB136   F51  C~2jgo      
2017 05  04.59314  19 27 44.940  -16 07 28.40  20.9G 10LB136   F51  C~2jgo      
2017 06  21.52297  19 24 23.783  -16 12 38.76  20.5G 10LB136   F51  C~2jgo      
2017 06  21.53375  19 24 23.710  -16 12 39.03  20.7G 10LB136   F51  C~2jgo      
2017 06  21.54454  19 24 23.640  -16 12 39.15  20.7G 10LB136   F51  C~2jgo      
2018 05  21.57156  19 38 02.829  -16 19 17.24  20.8G 10LB136   F51  C~2jgo      
2018 05  21.58145  19 38 02.794  -16 19 17.22  20.8G 10LB136   F51  C~2jgo      
2018 05  21.59133  19 38 02.759  -16 19 17.23  20.7G 10LB136   F51  C~2jgo      
2018 05  21.60125  19 38 02.727  -16 19 17.29  20.8G 10LB136   F51  C~2jgo      

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    -0.01       0.00     0.09
  2   0.0000      0.00    -0.06       0.00     0.03
  3   0.0055      0.00     0.13       0.00     0.04
  4   0.0056      0.00     0.11       0.00     0.01
  5   0.1254      0.00     0.06       0.00     0.07
  6   0.1254      0.00     0.12       0.00     0.14
  7   0.2457      0.00     0.12       0.00     0.13
  8   0.2457      0.00     0.14       0.00     0.15
  9   0.9665      0.00    -0.11       0.00    -0.08
 10   0.9665      0.00    -0.06       0.00    -0.16
 11   0.9830      0.00     0.41       0.00     0.07
 12   0.9830      0.00    -0.07       0.00     0.08
 13   0.9937      0.00    -0.01       0.00     0.02
 14   0.9937      0.00     0.04       0.00     0.09
 15   0.9938      0.00     0.14       0.00    -0.11
 16   0.9938      0.00    -0.06       0.00    -0.11
 17   2.1789      0.00     0.01       0.00    -0.10
 18   2.1789      0.00     0.01       0.00    -0.00
 19   2.1790      0.00     0.12       0.00    -0.13
 20   2.1790      0.00     0.05       0.00    -0.15
 21   3.0745      0.00     0.13       0.00     0.02
 22   3.0745      0.00     0.13       0.00     0.09
 23   3.0825      0.00     0.39       0.00    -0.19
 24   5.9494      0.00    -0.01       0.00     0.03
 25   5.9495      0.00     0.08       0.00     0.02
 26   5.9495      0.00     0.05       0.00    -0.08
 27   6.1761      0.00    -0.02       0.00    -0.17
 28   6.1762      0.00     0.01       0.00    -0.05
 29   6.1762      0.00     0.06       0.00     0.03
 30   6.1762      0.00    -0.05       0.00    -0.01
 31   6.2417      0.00     0.04       0.00     0.02
 32   6.2417      0.00     0.04       0.00     0.03
 33   6.2418      0.00    -0.03       0.00     0.03
 34   6.2418      0.00     0.02       0.00    -0.04
 35   6.9160      0.00    -0.01       0.00     0.05
 36   6.9160      0.00     0.07       0.00    -0.01
 37   6.9160      0.00     0.07       0.00     0.01
 38   6.9161      0.00     0.03       0.00    -0.02
 39   7.0473      0.00     0.14       0.00     0.16
 40   7.0473      0.00     0.07       0.00     0.05
 41   7.0473      0.00     0.05       0.00     0.09
 42   7.9619      0.00     0.07       0.00    -0.02
 43   7.9619      0.00     0.05       0.00     0.05
 44   7.9619      0.00     0.02       0.00     0.09
 45   7.9619      0.00     0.05       0.00     0.08

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        39.085    39.085    39.085
ecceobj         0.260     0.260     0.260
incobj         14.081    14.081    14.081
qmin           27.797    27.800    27.803
qmax           51.738    51.857    51.850
amean          39.455    39.455    39.455
amin           38.948    38.959    38.955
amax           40.064    40.066    40.061
emean           0.272     0.272     0.272
emin            0.251     0.251     0.251
emax            0.295     0.294     0.296
imean          12.276    12.269    12.266
imin           11.196    11.138    11.130
imax           13.049    13.079    13.067
excite_mean     0.345     0.345     0.345
fracstop        1.000     1.000     1.000
cjmean          2.916     2.916     2.916

libcent 0       179.3     179.4     179.9
libamp  0       101.7     101.3     101.2
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       201.5     200.8     199.5
kozaiamp        180.0     180.0     180.0