Orbit Fit and Astrometric record for 13MY11

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: 13MY11    
# Created Thu Oct 18 01:09:24 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   87 observations of   87
# Arc:   8.03y
# First observation: 2010/08/01
#  Last observation: 2018/08/13
# Chi-squared of fit:    61.45 DOF:  168 RMS:  0.15
# Min/Max residuals:    -0.60    0.42
# Exact a, adot, b, bdot, g, gdot:
  2.624767E-05  8.049975E-02 -6.372082E-06 -2.032873E-02  4.866084E-02 -1.967237E-03
# Covariance matrix:
  2.1534E-13 -9.1068E-14 -3.2971E-14  1.8874E-14 -3.6814E-14 -9.8407E-14
 -9.1068E-14  4.6617E-14  1.8910E-14 -1.0831E-14  1.2525E-14  5.6772E-14
 -3.2971E-14  1.8910E-14  8.9809E-14 -2.0883E-14  3.9703E-15  2.5276E-14
  1.8874E-14 -1.0831E-14 -2.0883E-14  6.6691E-15 -2.2014E-15 -1.4484E-14
 -3.6814E-14  1.2525E-14  3.9703E-15 -2.2014E-15  1.0229E-13  8.0428E-15
 -9.8407E-14  5.6772E-14  2.5276E-14 -1.4484E-14  8.0428E-15  7.6224E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.519429  -67.988535   -0.291267   -0.059492   -0.966376  2455409.879976
# Heliocentric elements and errors
Epoch:              2455410.5000  =  2010/08/02
Mean Anomaly:          359.60978 +/-     0.000
Argument of Peri:      195.42440 +/-     0.001
Long of Asc Node:       99.67477 +/-     0.000
Inclination:            14.50033 +/-     0.000
Eccentricity:         0.59040269 +/-    0.0000
Semi-Major Axis:     52.53371717 +/-    0.0042
Time of Perihelion: 2455561.2516 +/-      16.8
Perihelion:          21.51766914 +/-    0.0024
Aphelion:            83.54976519 +/-    0.0069
Period (y)              380.7723 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            8.32517806 +/-    0.0001
Ecliptic Y          -19.80645977 +/-    0.0001
Ecliptic Z           -1.26161633 +/-    0.0000
Ecliptic XDOT         0.00413234 +/-    0.0000
Ecliptic YDOT         0.00187126 +/-    0.0000
Ecliptic ZDOT        -0.00113485 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   21.52199815 +/-    0.0001
Geocenter to KBO     20.55045143 +/-    0.0001
# Hcoef:  8.52

The following table shows the complete astrometric record for 13MY11. 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 (13MY11) followed by the observatory code and reference code for the source of the astrometry.

2010 08  01.37921  19 37 36.522  -25 06 47.67  21.6G 13MY11    F51  C~2kP3      
2010 08  05.40122  19 37 03.305  -25 08 35.11  21.1G 13MY11    F51  C~2kP3      
2011 07  19.48516  20 00 33.373  -25 17 11.06  21.6G 13MY11    F51  C~2kP3      
2011 07  21.48263  20 00 15.749  -25 18 23.49  21.3G 13MY11    F51  C~2kP3      
2011 07  28.38496  19 59 14.934  -25 22 21.45  21.5G 13MY11    F51  C~2kP3      
2011 07  28.39440  19 59 14.845  -25 22 21.60  21.4G 13MY11    F51  C~2kP3      
2011 07  31.40376  19 58 48.651  -25 24 00.35  21.8w 13MY11    F51  C~1vWz      
2011 07  31.41857  19 58 48.514  -25 24 01.13  21.6w 13MY11    F51  C~1vWz      
2011 07  31.44819  19 58 48.265  -25 24 01.97  21.4w 13MY11    F51  C~1vWz      
2011 08  01.38400  19 58 40.199  -25 24 32.31  22.3G 13MY11    F51  C~2kP3      
2011 08  16.37181  19 56 37.963  -25 31 42.24  21.3G 13MY11    F51  C~2kP3      
2012 06  16.53523  20 25 40.415  -25 00 18.80  22.1G 13MY11    F51  C~2kP3      
2012 06  16.54914  20 25 40.325  -25 00 19.45  22.1G 13MY11    F51  C~2kP3      
2012 06  16.57697  20 25 40.162  -25 00 20.66  21.0G 13MY11    F51  C~2kP3      
2012 07  28.42823  20 20 10.806  -25 29 16.52  21.3G 13MY11    F51  C~2kP3      
2012 08  11.36121  20 18 11.670  -25 37 20.96  21.6G 13MY11    F51  C~2kP3      
2013 06  30.48163  20 44 50.030  -25 03 27.00  21.7r 13MY11    F51  C~1vWz      
2013 06  30.49132  20 44 49.968  -25 03 27.47  21.6r 13MY11    F51  C~1vWz      
2013 06  30.50250  20 44 49.888  -25 03 28.04  21.3i 13MY11    F51  C~1vWz      
2013 06  30.51351  20 44 49.790  -25 03 28.59  21.6i 13MY11    F51  C~1vWz      
2013 07  08.48606  20 43 51.298  -25 09 37.76  22.6G 13MY11    F51  C~2kP3      
2013 07  13.47486  20 43 11.944  -25 13 27.62  21.6w 13MY11    F51  C~1vWz      
2013 07  13.49442  20 43 11.787  -25 13 28.54  21.8w 13MY11    F51  C~1vWz      
2013 07  13.50903  20 43 11.677  -25 13 29.23  21.7w 13MY11    F51  C~1vWz      
2013 07  14.47250  20 43 03.870  -25 14 13.23  21.4G 13MY11    F51  C~2kP3      
2013 07  17.46702  20 42 39.263  -25 16 29.47  21.8G 13MY11    F51  C~2kP3      
2013 07  17.47737  20 42 39.171  -25 16 29.91  21.5G 13MY11    F51  C~2kP3      
2013 07  18.45863  20 42 31.006  -25 17 14.21  21.7G 13MY11    F51  C~2kP3      
2013 07  18.46855  20 42 30.928  -25 17 14.54  21.6G 13MY11    F51  C~2kP3      
2013 08  02.40074  20 40 23.074  -25 27 55.67  21.6w 13MY11    F51  C~1vWz      
2013 08  02.41438  20 40 22.952  -25 27 56.25  21.7w 13MY11    F51  C~1vWz      
2013 08  02.42803  20 40 22.824  -25 27 57.06  22.1w 13MY11    F51  C~1vWz      
2013 08  02.44169  20 40 22.709  -25 27 57.28  21.6w 13MY11    F51  C~1vWz      
2013 08  23.39768  20 37 29.235  -25 40 09.34  22.0G 13MY11    F51  C~2kP3      
2013 08  26.34609  20 37 07.089  -25 41 31.56  21.9G 13MY11    F51  C~2kP3      
2014 06  13.59609  21 06 37.742  -24 33 18.14  22.1G 13MY11    F51  C~2kP3      
2014 07  27.43149  21 01 49.931  -25 08 14.92  21.7w 13MY11    F51  C~1vWz      
2014 07  27.44341  21 01 49.826  -25 08 15.50  21.6w 13MY11    F51  C~1vWz      
2014 07  27.45531  21 01 49.726  -25 08 15.96  21.5w 13MY11    F51  C~1vWz      
2014 07  27.46721  21 01 49.633  -25 08 16.54  21.5w 13MY11    F51  C~1vWz      
2014 07  29.45300  21 01 32.930  -25 09 48.89  21.5w 13MY11    F51  C~1vWz      
2014 07  29.46355  21 01 32.843  -25 09 49.05  21.4w 13MY11    F51  C~1vWz      
2014 07  29.47409  21 01 32.750  -25 09 49.67  21.7w 13MY11    F51  C~1vWz      
2014 07  29.48462  21 01 32.658  -25 09 50.20  21.7w 13MY11    F51  C~1vWz      
2014 07  30.39037  21 01 25.029  -25 10 31.71  21.6w 13MY11    F51  C~1vWz      
2014 07  30.40227  21 01 24.927  -25 10 32.25  21.7w 13MY11    F51  C~1vWz      
2014 07  30.41418  21 01 24.815  -25 10 32.78  21.6w 13MY11    F51  C~1vWz      
2014 07  30.42611  21 01 24.726  -25 10 33.33  21.6w 13MY11    F51  C~1vWz      
2014 07  30.47505  21 01 24.304  -25 10 35.46  21.7w 13MY11    F51  C~1vWz      
2014 07  30.48584  21 01 24.203  -25 10 35.99  21.6w 13MY11    F51  C~1vWz      
2014 07  30.49665  21 01 24.102  -25 10 36.54  21.6w 13MY11    F51  C~1vWz      
2014 07  30.50744  21 01 24.009  -25 10 37.05  21.6w 13MY11    F51  C~1vWz      
2014 08  22.38689  20 58 12.102  -25 26 00.36  21.9w 13MY11    F51  C~1vWz      
2014 08  22.39837  20 58 12.018  -25 26 00.66  21.7w 13MY11    F51  C~1vWz      
2014 08  22.40983  20 58 11.928  -25 26 01.04  21.8w 13MY11    F51  C~1vWz      
2014 08  22.42128  20 58 11.831  -25 26 01.48  21.7w 13MY11    F51  C~1vWz      
2014 09  13.29780  20 55 37.944  -25 35 23.29  21.8G 13MY11    F51  C~2kP3      
2014 09  13.30879  20 55 37.887  -25 35 23.48  21.8G 13MY11    F51  C~2kP3      
2014 09  28.25835  20 54 27.163  -25 38 01.49  21.7w 13MY11    F51  C~1vWz      
2014 09  28.27064  20 54 27.100  -25 38 01.63  21.9w 13MY11    F51  C~1vWz      
2014 09  28.28299  20 54 27.061  -25 38 01.66  21.9w 13MY11    F51  C~1vWz      
2014 09  28.29557  20 54 27.002  -25 38 01.67  22.0w 13MY11    F51  C~1vWz      
2015 06  29.53866  21 25 08.192  -24 18 49.80  21.6i 13MY11    F51  C~1vX0      
2015 06  29.56068  21 25 08.075  -24 18 50.73  21.6i 13MY11    F51  C~1vX0      
2015 06  29.57168  21 25 08.006  -24 18 51.29  21.6i 13MY11    F51  C~1vX0      
2015 06  30.55657  21 25 02.696  -24 19 40.86  22.3G 13MY11    F51  C~2kP3      
2015 08  16.37995  21 19 11.550  -24 58 10.98  22.4G 13MY11    F51  C~2kP3      
2016 07  08.51958  21 43 29.208  -23 52 01.60  22.2G 13MY11    F51  C~2kP3      
2016 07  08.52966  21 43 29.167  -23 52 01.76  22.2G 13MY11    F51  C~2kP3      
2016 07  08.54980  21 43 29.046  -23 52 03.03  22.3G 13MY11    F51  C~2kP3      
2016 08  10.43112  21 39 28.901  -24 20 47.69  21.8G 13MY11    F51  C~2kP3      
2016 08  10.44144  21 39 28.827  -24 20 48.18  22.1G 13MY11    F51  C~2kP3      
2016 08  10.45175  21 39 28.732  -24 20 48.50  22.0G 13MY11    F51  C~2kP3      
2016 08  10.46206  21 39 28.659  -24 20 49.16  21.7G 13MY11    F51  C~2kP3      
2017 07  25.46815  22 00 24.134  -23 24 32.82  22.2G 13MY11    F51  C~2kP3      
2017 07  25.47836  22 00 24.046  -23 24 33.45  21.9G 13MY11    F51  C~2kP3      
2017 07  25.48857  22 00 23.971  -23 24 34.18  22.1G 13MY11    F51  C~2kP3      
2017 07  25.49879  22 00 23.898  -23 24 34.44  21.7G 13MY11    F51  C~2kP3      
2017 08  18.43666  21 57 20.531  -23 45 28.40  22.0G 13MY11    F51  C~2kP3      
2017 08  18.44780  21 57 20.433  -23 45 28.90  21.9G 13MY11    F51  C~2kP3      
2017 08  18.45904  21 57 20.351  -23 45 29.35  22.0G 13MY11    F51  C~2kP3      
2017 08  18.47027  21 57 20.270  -23 45 29.73  21.9G 13MY11    F51  C~2kP3      
2017 09  26.32989  21 52 36.538  -24 06 58.70  23.3G 13MY11    F51  C~2kP3      
2017 12  08.22411  21 52 51.025  -23 41 34.27  21.6G 13MY11    F51  C~2kP3      
2018 08  13.48087  22 16 12.329  -22 52 40.81  22.1w 13MY11    F51  C~2j3i      
2018 08  13.49186  22 16 12.211  -22 52 41.52  22.1w 13MY11    F51  C~2j3i      
2018 08  13.51383  22 16 12.028  -22 52 42.64  22.1w 13MY11    F51  C~2j3i      

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     0.09       0.00    -0.03
  2   0.0110      0.00     0.07       0.00     0.34
  3   0.9640      0.00     0.02       0.00     0.26
  4   0.9695      0.00     0.32       0.00    -0.60
  5   0.9884      0.00     0.02       0.00    -0.15
  6   0.9884      0.00    -0.05       0.00     0.01
  7   0.9966      0.00     0.09       0.00     0.22
  8   0.9967      0.00     0.00       0.00    -0.08
  9   0.9968      0.00     0.19       0.00     0.03
 10   0.9993      0.00     0.23       0.00    -0.24
 11   1.0404      0.00     0.34       0.00     0.10
 12   1.8759      0.00     0.11       0.00     0.17
 13   1.8759      0.00     0.04       0.00     0.09
 14   1.8760      0.00     0.17       0.00     0.03
 15   1.9906      0.00    -0.07       0.00     0.10
 16   2.0287      0.00    -0.25       0.00    -0.05
 17   2.9134      0.00     0.17       0.00     0.10
 18   2.9134      0.00     0.27       0.00     0.08
 19   2.9134      0.00     0.27       0.00     0.03
 20   2.9134      0.00    -0.03       0.00    -0.01
 21   2.9353      0.00    -0.23       0.00    -0.13
 22   2.9489      0.00     0.09       0.00     0.02
 23   2.9490      0.00     0.15       0.00    -0.00
 24   2.9490      0.00     0.31       0.00    -0.03
 25   2.9517      0.00     0.20       0.00     0.08
 26   2.9599      0.00     0.21       0.00     0.00
 27   2.9599      0.00     0.14       0.00     0.03
 28   2.9626      0.00     0.11       0.00    -0.01
 29   2.9626      0.00     0.21       0.00     0.10
 30   3.0035      0.00     0.17       0.00     0.02
 31   3.0035      0.00     0.15       0.00    -0.01
 32   3.0036      0.00     0.04       0.00    -0.27
 33   3.0036      0.00     0.12       0.00     0.06
 34   3.0610      0.00     0.20       0.00    -0.06
 35   3.0690      0.00    -0.00       0.00    -0.35
 36   3.8664      0.00     0.06       0.00     0.27
 37   3.9865      0.00     0.04       0.00    -0.01
 38   3.9865      0.00    -0.00       0.00    -0.03
 39   3.9865      0.00     0.03       0.00     0.07
 40   3.9866      0.00     0.16       0.00     0.05
 41   3.9920      0.00     0.02       0.00    -0.15
 42   3.9920      0.00     0.08       0.00     0.17
 43   3.9920      0.00     0.05       0.00     0.04
 44   3.9921      0.00     0.03       0.00    -0.01
 45   3.9946      0.00     0.13       0.00     0.06
 46   3.9946      0.00     0.14       0.00     0.07
 47   3.9946      0.00    -0.00       0.00     0.08
 48   3.9947      0.00     0.21       0.00     0.08
 49   3.9948      0.00     0.22       0.00     0.19
 50   3.9948      0.00     0.11       0.00     0.15
 51   3.9948      0.00    -0.01       0.00     0.09
 52   3.9949      0.00    -0.00       0.00     0.07
 53   4.0575      0.00    -0.14       0.00     0.04
 54   4.0575      0.00     0.01       0.00     0.13
 55   4.0576      0.00     0.07       0.00     0.13
 56   4.0576      0.00     0.02       0.00     0.08
 57   4.1175      0.00     0.13       0.00     0.21
 58   4.1175      0.00     0.27       0.00     0.21
 59   4.1585      0.00     0.18       0.00     0.19
 60   4.1585      0.00    -0.08       0.00     0.10
 61   4.1585      0.00     0.03       0.00     0.12
 62   4.1586      0.00    -0.16       0.00     0.16
 63   4.9094      0.00     0.09       0.00     0.07
 64   4.9095      0.00     0.15       0.00     0.24
 65   4.9095      0.00     0.03       0.00     0.23
 66   4.9122      0.00     0.14       0.00    -0.08
 67   5.0404      0.00     0.25       0.00    -0.05
 68   5.9360      0.00    -0.29       0.00    -0.34
 69   5.9361      0.00     0.01       0.00     0.03
 70   5.9361      0.00     0.01       0.00    -0.17
 71   6.0262      0.00     0.09       0.00    -0.02
 72   6.0262      0.00     0.28       0.00    -0.01
 73   6.0262      0.00     0.15       0.00     0.16
 74   6.0262      0.00     0.35       0.00     0.00
 75   6.9818      0.00     0.29       0.00     0.15
 76   6.9818      0.00     0.06       0.00     0.09
 77   6.9818      0.00     0.03       0.00    -0.08
 78   6.9818      0.00     0.03       0.00     0.23
 79   7.0474      0.00     0.18       0.00    -0.08
 80   7.0474      0.00     0.09       0.00    -0.05
 81   7.0474      0.00     0.25       0.00     0.03
 82   7.0475      0.00     0.42       0.00     0.19
 83   7.1539      0.00     0.29       0.00     0.03
 84   7.3534      0.00    -0.22       0.00    -0.09
 85   8.0331      0.00     0.35       0.00     0.03
 86   8.0332      0.00    -0.13       0.00    -0.10
 87   8.0332      0.00    -0.29       0.00    -0.07

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.

13MY11    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        51.658    51.657    51.658
ecceobj         0.584     0.584     0.584
incobj         14.519    14.519    14.519
qmin           21.314    21.314    21.314
qmax           85.874    86.021    85.260
amean          52.259    51.879    51.611
amin           51.054    49.260    49.401
amax           53.825    53.859    53.432
emean           0.580     0.578     0.578
emin            0.561     0.552     0.557
emax            0.597     0.597     0.596
imean          14.367    14.091    13.942
imin           12.859    12.859    12.860
imax           16.028    16.268    16.033
excite_mean     0.631     0.628     0.627
fracstop        0.043     0.037     0.037
cjmean          2.655     2.656     2.655

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       219.2     218.7     220.2
kozaiamp         22.3      24.0      24.0