Orbit Fit and Astrometric record for 11BN170

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: 11BN170   
# Created Tue Feb 18 02:10:29 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   98 observations of   98
# Arc:   7.05y
# First observation: 2011/01/24
#  Last observation: 2018/02/13
# Chi-squared of fit:   129.02 DOF:  190 RMS:  0.20
# Min/Max residuals:    -0.75    0.78
# Exact a, adot, b, bdot, g, gdot:
  1.745970E-05  3.258265E-02  1.834130E-06  6.409014E-03  2.735577E-02 -7.558504E-03
# Covariance matrix:
  1.6393E-13 -6.9152E-14  1.3150E-14 -9.8427E-15 -3.8063E-14 -1.9741E-13
 -6.9152E-14  3.9090E-14 -8.9085E-15  6.6386E-15  2.3486E-14  1.3321E-13
  1.3150E-14 -8.9085E-15  8.9748E-14 -1.9280E-14 -5.6666E-15 -3.3984E-14
 -9.8427E-15  6.6386E-15 -1.9280E-14  5.4830E-15  4.8804E-15  2.5413E-14
 -3.8063E-14  2.3486E-14 -5.6666E-15  4.8804E-15  6.6757E-14  9.6532E-14
 -1.9741E-13  1.3321E-13 -3.3984E-14  2.5413E-14  9.6532E-14  5.0976E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.965412  110.265965   -0.237344    0.099584   -0.953049  2455586.009496
# Heliocentric elements and errors
Epoch:              2455586.5000  =  2011/01/25
Mean Anomaly:          348.90949 +/-     0.002
Argument of Peri:       65.48007 +/-     0.003
Long of Asc Node:       83.17995 +/-     0.000
Inclination:            12.45668 +/-     0.000
Eccentricity:         0.50712284 +/-    0.0000
Semi-Major Axis:     70.81486439 +/-    0.0061
Time of Perihelion: 2462292.0436 +/-      27.4
Perihelion:          34.90302920 +/-    0.0041
Aphelion:           106.72669959 +/-    0.0097
Period (y)              595.9294 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -13.14443067 +/-    0.0001
Ecliptic Y           34.92261040 +/-    0.0003
Ecliptic Z            3.79918306 +/-    0.0000
Ecliptic XDOT        -0.00277643 +/-    0.0000
Ecliptic YDOT        -0.00189177 +/-    0.0000
Ecliptic ZDOT         0.00055935 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.50746744 +/-    0.0003
Geocenter to KBO     36.55555690 +/-    0.0003
# Hcoef:  6.75

The following table shows the complete astrometric record for 11BN170. 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 (11BN170) followed by the observatory code and reference code for the source of the astrometry.

2011 01  24.50873  07 31 41.251  +27 48 22.74  21.9G 11BN170   F51  C~345R      
2011 01  26.35348  07 31 30.663  +27 48 46.06  21.3G 11BN170   F51  C~345R      
2011 01  30.28496  07 31 08.544  +27 49 35.02  21.9G 11BN170   F51  C~345R      
2011 01  30.29936  07 31 08.467  +27 49 35.41  21.5G 11BN170   F51  C~345R      
2011 01  30.31463  07 31 08.381  +27 49 35.57  21.6G 11BN170   F51  C~345R      
2011 01  30.32895  07 31 08.291  +27 49 35.49  21.9G 11BN170   F51  C~345R      
2011 04  24.28682  07 28 32.625  +27 48 43.22  22.1G 11BN170   F51  C~345R      
2011 09  30.59025  07 45 25.683  +27 20 18.49  22.4G 11BN170   F51  C~345R      
2011 11  26.62112  07 45 26.790  +27 32 53.46  20.4G 11BN170   F51  C~345R      
2012 12  23.55868  07 52 11.857  +27 42 44.72  22.5G 11BN170   F51  C~345R      
2012 12  23.57315  07 52 11.777  +27 42 45.08  22.7G 11BN170   F51  C~345R      
2012 12  23.58764  07 52 11.708  +27 42 45.46  22.3G 11BN170   F51  C~345R      
2012 12  23.60198  07 52 11.610  +27 42 45.63  22.8G 11BN170   F51  C~345R      
2013 01  03.53012  07 51 10.934  +27 46 36.51  22.3G 11BN170   F51  C~345R      
2013 01  03.53343  07 51 10.909  +27 46 37.42  23.0G 11BN170   F51  C~345R      
2013 01  03.54248  07 51 10.844  +27 46 36.76  22.2G 11BN170   F51  C~345R      
2013 01  03.55567  07 51 10.756  +27 46 37.39  22.2G 11BN170   F51  C~345R      
2014 01  01.40051  08 00 20.505  +27 44 21.67  22.4G 11BN170   F51  C~345R      
2014 01  01.41438  08 00 20.429  +27 44 21.99  22.3G 11BN170   F51  C~345R      
2014 01  01.42823  08 00 20.343  +27 44 22.51  21.7G 11BN170   F51  C~345R      
2014 01  01.44213  08 00 20.278  +27 44 22.58  22.3G 11BN170   F51  C~345R      
2014 01  11.38852  07 59 22.715  +27 47 58.33  21.9G 11BN170   F51  C~345R      
2014 01  11.40104  07 59 22.595  +27 47 58.11  22.2G 11BN170   F51  C~345R      
2014 01  24.30680  07 58 05.823  +27 52 08.55  22.3G 11BN170   F51  C~345R      
2014 01  24.31804  07 58 05.750  +27 52 08.46  22.3G 11BN170   F51  C~345R      
2014 01  24.32929  07 58 05.679  +27 52 08.82  22.3G 11BN170   F51  C~345R      
2014 01  24.34056  07 58 05.616  +27 52 08.95  22.5G 11BN170   F51  C~345R      
2014 03  02.24516  07 54 56.514  +27 59 19.14  22.1G 11BN170   F51  C~345R      
2014 03  02.25661  07 54 56.505  +27 59 19.40  22.8G 11BN170   F51  C~345R      
2014 03  02.26808  07 54 56.434  +27 59 19.41  22.6G 11BN170   F51  C~345R      
2014 11  21.51676  08 12 08.370  +27 24 40.26  22.6G 11BN170   F51  C~345R      
2014 11  21.53067  08 12 08.337  +27 24 40.40  22.0G 11BN170   F51  C~345R      
2014 11  21.54458  08 12 08.303  +27 24 40.73  22.4G 11BN170   F51  C~345R      
2014 11  21.55847  08 12 08.284  +27 24 41.02  22.2G 11BN170   F51  C~345R      
2014 12  29.55692  08 09 39.821  +27 39 30.59  22.3G 11BN170   F51  C~345R      
2014 12  29.56877  08 09 39.761  +27 39 30.60  21.9G 11BN170   F51  C~345R      
2014 12  29.58054  08 09 39.683  +27 39 30.83  22.4G 11BN170   F51  C~345R      
2014 12  29.59231  08 09 39.620  +27 39 31.34  22.5G 11BN170   F51  C~345R      
2015 01  24.40129  08 07 09.815  +27 49 03.75  22.3G 11BN170   F51  C~345R      
2015 01  27.51267  08 06 51.315  +27 50 02.65  22.0G 11BN170   F51  C~345R      
2015 01  27.52430  08 06 51.241  +27 50 02.94  22.7G 11BN170   F51  C~345R      
2015 01  27.53593  08 06 51.178  +27 50 03.26  22.4G 11BN170   F51  C~345R      
2015 01  27.54760  08 06 51.098  +27 50 03.57  22.8G 11BN170   F51  C~345R      
2015 02  12.31237  08 05 21.578  +27 54 14.23  22.3G 11BN170   F51  C~345R      
2015 02  13.28480  08 05 16.403  +27 54 26.95  22.6G 11BN170   F51  C~345R      
2015 02  13.29812  08 05 16.336  +27 54 27.10  22.5G 11BN170   F51  C~345R      
2015 02  13.31148  08 05 16.255  +27 54 27.49  22.4G 11BN170   F51  C~345R      
2015 02  13.32491  08 05 16.178  +27 54 27.61  22.4G 11BN170   F51  C~345R      
2015 02  23.26864  08 04 26.635  +27 56 15.51  22.9G 11BN170   F51  C~345R      
2015 03  23.32008  08 02 52.779  +27 57 39.76  22.2G 11BN170   F51  C~345R      
2015 03  23.33389  08 02 52.782  +27 57 39.56  22.7G 11BN170   F51  C~345R      
2015 03  23.34880  08 02 52.732  +27 57 39.76  22.6G 11BN170   F51  C~345R      
2015 03  23.36262  08 02 52.707  +27 57 39.58  22.6G 11BN170   F51  C~345R      
2015 12  03.50930  08 20 39.985  +27 22 32.15  22.0G 11BN170   F51  C~345R      
2015 12  03.52047  08 20 39.940  +27 22 32.50  23.0G 11BN170   F51  C~345R      
2015 12  03.53161  08 20 39.904  +27 22 32.82  22.0G 11BN170   F51  C~345R      
2015 12  03.54291  08 20 39.838  +27 22 33.06  22.3G 11BN170   F51  C~345R      
2015 12  04.46282  08 20 37.001  +27 22 54.84  22.2G 11BN170   F51  C~345R      
2015 12  04.47511  08 20 36.912  +27 22 55.20  22.3G 11BN170   F51  C~345R      
2015 12  04.48736  08 20 36.856  +27 22 55.69  21.8G 11BN170   F51  C~345R      
2015 12  04.49963  08 20 36.864  +27 22 55.62  22.1G 11BN170   F51  C~345R      
2015 12  24.46268  08 19 14.807  +27 31 17.06  21.8G 11BN170   F51  C~345R      
2016 01  14.50830  08 17 19.203  +27 40 00.32  22.3G 11BN170   F51  C~345R      
2016 01  14.52183  08 17 19.125  +27 40 00.70  22.4G 11BN170   F51  C~345R      
2016 01  14.53537  08 17 19.040  +27 40 00.92  22.2G 11BN170   F51  C~345R      
2016 01  14.54905  08 17 18.966  +27 40 01.40  22.0G 11BN170   F51  C~345R      
2016 02  04.30822  08 15 15.920  +27 47 13.16  22.7G 11BN170   F51  C~345R      
2016 02  04.32031  08 15 15.853  +27 47 13.71  22.0G 11BN170   F51  C~345R      
2016 02  04.33238  08 15 15.806  +27 47 13.67  21.8G 11BN170   F51  C~345R      
2016 02  04.34456  08 15 15.712  +27 47 13.94  22.0G 11BN170   F51  C~345R      
2016 03  04.23673  08 12 50.189  +27 53 01.23  22.3G 11BN170   F51  C~345R      
2016 03  04.24903  08 12 50.129  +27 53 01.33  22.3G 11BN170   F51  C~345R      
2016 03  04.26139  08 12 50.077  +27 53 01.37  22.5G 11BN170   F51  C~345R      
2016 03  04.27383  08 12 50.027  +27 53 01.40  22.2G 11BN170   F51  C~345R      
2016 03  13.23735  08 12 17.997  +27 53 36.22  22.5G 11BN170   F51  C~345R      
2016 03  13.24894  08 12 17.961  +27 53 36.33  22.4G 11BN170   F51  C~345R      
2016 03  13.26050  08 12 17.924  +27 53 36.35  21.9G 11BN170   F51  C~345R      
2016 03  13.27210  08 12 17.866  +27 53 36.48  21.8G 11BN170   F51  C~345R      
2017 01  06.59906  08 27 14.016  +27 29 04.73  22.3G 11BN170   F51  C~345R      
2017 01  08.61690  08 27 02.654  +27 29 56.93  22.3G 11BN170   F51  C~345R      
2017 01  09.58145  08 26 57.170  +27 30 22.03  22.4G 11BN170   F51  C~345R      
2017 01  16.54547  08 26 16.728  +27 33 17.11  21.5G 11BN170   F51  C~345R      
2017 01  18.53551  08 26 04.950  +27 34 05.03  22.3G 11BN170   F51  C~345R      
2017 02  14.45295  08 23 28.020  +27 43 02.45  22.9G 11BN170   F51  C~345R      
2017 04  08.28905  08 20 36.422  +27 45 47.64  22.4G 11BN170   F51  C~345R      
2017 11  21.54589  08 39 20.627  +26 58 23.20  22.4G 11BN170   F51  C~345R      
2017 11  21.55735  08 39 20.619  +26 58 23.47  22.4G 11BN170   F51  C~345R      
2017 11  21.56882  08 39 20.587  +26 58 23.72  22.2G 11BN170   F51  C~345R      
2017 12  13.47161  08 38 25.301  +27 07 23.14  22.1G 11BN170   F51  C~345R      
2017 12  13.47614  08 38 25.304  +27 07 23.39  22.2G 11BN170   F51  C~345R      
2017 12  13.48356  08 38 25.275  +27 07 23.55  22.0G 11BN170   F51  C~345R      
2017 12  13.48807  08 38 25.284  +27 07 23.68  22.1G 11BN170   F51  C~345R      
2017 12  13.49550  08 38 25.216  +27 07 23.93  22.0G 11BN170   F51  C~345R      
2017 12  13.49999  08 38 25.208  +27 07 24.18  22.0G 11BN170   F51  C~345R      
2017 12  13.50745  08 38 25.138  +27 07 24.25  22.1G 11BN170   F51  C~345R      
2017 12  13.51198  08 38 25.160  +27 07 24.45  21.8G 11BN170   F51  C~345R      
2018 01  13.43679  08 35 54.273  +27 21 38.96  20.6G 11BN170   F51  C~345R      
2018 02  13.29989  08 32 53.307  +27 33 15.97  22.1G 11BN170   F51  C~345R      

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     0.38       0.00     0.34
  2   0.0051      0.00    -0.16       0.00    -0.47
  3   0.0158      0.00    -0.07       0.00     0.08
  4   0.0159      0.00    -0.00       0.00     0.30
  5   0.0159      0.00     0.00       0.00     0.27
  6   0.0159      0.00    -0.14       0.00     0.02
  7   0.2458      0.00    -0.23       0.00     0.12
  8   0.6819      0.00    -0.13       0.00    -0.02
  9   0.8381      0.00     0.00       0.00     0.57
 10   1.9139      0.00    -0.08       0.00    -0.06
 11   1.9139      0.00    -0.11       0.00    -0.01
 12   1.9140      0.00     0.03       0.00     0.06
 13   1.9140      0.00    -0.28       0.00    -0.08
 14   1.9439      0.00     0.35       0.00    -0.38
 15   1.9439      0.00     0.26       0.00     0.46
 16   1.9440      0.00     0.08       0.00    -0.38
 17   1.9440      0.00    -0.08       0.00    -0.02
 18   2.9374      0.00     0.09       0.00    -0.21
 19   2.9375      0.00     0.14       0.00    -0.20
 20   2.9375      0.00     0.04       0.00     0.01
 21   2.9375      0.00     0.26       0.00    -0.24
 22   2.9648      0.00     0.38       0.00     0.30
 23   2.9648      0.00    -0.29       0.00    -0.19
 24   3.0001      0.00     0.06       0.00     0.10
 25   3.0002      0.00    -0.02       0.00    -0.20
 26   3.0002      0.00    -0.07       0.00    -0.04
 27   3.0002      0.00     0.00       0.00    -0.11
 28   3.1013      0.00    -0.33       0.00    -0.01
 29   3.1013      0.00     0.21       0.00     0.19
 30   3.1013      0.00    -0.18       0.00     0.15
 31   3.8248      0.00    -0.01       0.00     0.01
 32   3.8248      0.00    -0.06       0.00    -0.14
 33   3.8249      0.00    -0.13       0.00    -0.10
 34   3.8249      0.00     0.04       0.00    -0.10
 35   3.9289      0.00     0.12       0.00     0.22
 36   3.9290      0.00     0.20       0.00    -0.05
 37   3.9290      0.00    -0.01       0.00    -0.10
 38   3.9290      0.00     0.02       0.00     0.13
 39   3.9997      0.00     0.10       0.00    -0.06
 40   4.0082      0.00     0.02       0.00    -0.14
 41   4.0083      0.00    -0.04       0.00    -0.06
 42   4.0083      0.00     0.06       0.00     0.05
 43   4.0083      0.00    -0.09       0.00     0.15
 44   4.0515      0.00    -0.09       0.00    -0.33
 45   4.0541      0.00    -0.08       0.00    -0.22
 46   4.0542      0.00    -0.01       0.00    -0.24
 47   4.0542      0.00    -0.14       0.00    -0.03
 48   4.0543      0.00    -0.21       0.00    -0.08
 49   4.0815      0.00    -0.42       0.00     0.13
 50   4.1583      0.00     0.07       0.00    -0.01
 51   4.1583      0.00     0.52       0.00    -0.16
 52   4.1584      0.00     0.22       0.00     0.08
 53   4.1584      0.00     0.25       0.00    -0.05
 54   4.8569      0.00     0.28       0.00    -0.06
 55   4.8570      0.00     0.14       0.00     0.02
 56   4.8570      0.00     0.13       0.00     0.07
 57   4.8570      0.00    -0.32       0.00     0.04
 58   4.8596      0.00     0.22       0.00    -0.10
 59   4.8596      0.00    -0.51       0.00    -0.04
 60   4.8596      0.00    -0.75       0.00     0.15
 61   4.8597      0.00    -0.03       0.00    -0.21
 62   4.9143      0.00     0.42       0.00     0.29
 63   4.9719      0.00    -0.02       0.00    -0.05
 64   4.9720      0.00     0.03       0.00     0.02
 65   4.9720      0.00    -0.03       0.00    -0.08
 66   4.9720      0.00     0.09       0.00     0.09
 67   5.0289      0.00    -0.14       0.00    -0.24
 68   5.0289      0.00    -0.08       0.00     0.09
 69   5.0289      0.00     0.28       0.00    -0.17
 70   5.0290      0.00    -0.05       0.00    -0.12
 71   5.1081      0.00     0.07       0.00     0.02
 72   5.1081      0.00    -0.07       0.00     0.04
 73   5.1082      0.00    -0.09       0.00     0.00
 74   5.1082      0.00    -0.08       0.00    -0.04
 75   5.1327      0.00    -0.08       0.00    -0.06
 76   5.1328      0.00    -0.06       0.00     0.02
 77   5.1328      0.00    -0.06       0.00     0.02
 78   5.1328      0.00    -0.36       0.00     0.12
 79   5.9523      0.00     0.02       0.00     0.04
 80   5.9579      0.00    -0.08       0.00    -0.16
 81   5.9605      0.00    -0.13       0.00     0.07
 82   5.9796      0.00    -0.04       0.00     0.30
 83   5.9850      0.00    -0.15       0.00    -0.00
 84   6.0587      0.00    -0.24       0.00     0.04
 85   6.2034      0.00    -0.00       0.00    -0.32
 86   6.8256      0.00     0.03       0.00    -0.02
 87   6.8256      0.00     0.14       0.00    -0.00
 88   6.8256      0.00    -0.10       0.00    -0.00
 89   6.8856      0.00    -0.13       0.00    -0.10
 90   6.8856      0.00     0.17       0.00     0.03
 91   6.8856      0.00     0.16       0.00    -0.01
 92   6.8856      0.00     0.55       0.00    -0.01
 93   6.8857      0.00    -0.05       0.00     0.04
 94   6.8857      0.00     0.08       0.00     0.17
 95   6.8857      0.00    -0.54       0.00     0.03
 96   6.8857      0.00     0.04       0.00     0.11
 97   6.9704      0.00    -0.33       0.00     0.29
 98   7.0549      0.00     0.78       0.00     0.47

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.

11BN170    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        71.357    71.356    71.357
ecceobj         0.510     0.510     0.510
incobj         12.439    12.439    12.439
qmin           34.090    33.766    33.926
qmax          112.163   112.645   112.786
amean          70.917    71.352    71.711
amin           69.089    69.337    69.727
amax           73.751    73.630    73.822
emean           0.506     0.510     0.511
emin            0.487     0.490     0.495
emax            0.527     0.530     0.530
imean          11.662    11.240    11.480
imin           10.711    10.156    10.667
imax           12.905    12.621    12.532
excite_mean     0.545     0.546     0.549
fracstop        1.000     1.000     1.000
cjmean          3.018     3.019     3.019

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       172.5     178.9     169.0
kozaiamp        180.0     179.9     179.9