Orbit Fit and Astrometric record for 11BR163

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: 11BR163   
# Created Tue Apr 23 01:09:32 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  104 observations of  104
# Arc:   7.70y
# First observation: 2010/05/06
#  Last observation: 2018/01/17
# Chi-squared of fit:   147.47 DOF:  202 RMS:  0.21
# Min/Max residuals:    -1.48    0.61
# Exact a, adot, b, bdot, g, gdot:
  1.832352E-05  3.100876E-02  7.590908E-06  1.375013E-02  2.621050E-02 -1.352908E-03
# Covariance matrix:
  1.0637E-13 -4.0136E-14  1.6743E-14 -1.2879E-14 -3.6307E-14 -1.2554E-13
 -4.0136E-14  3.0059E-14 -1.2469E-14  1.1828E-14  6.3485E-15  1.1061E-13
  1.6743E-14 -1.2469E-14  6.2412E-14 -1.5496E-14 -8.2351E-15 -5.0894E-14
 -1.2879E-14  1.1828E-14 -1.5496E-14  7.4585E-15  2.8096E-15  4.7321E-14
 -3.6307E-14  6.3485E-15 -8.2351E-15  2.8096E-15  5.0457E-14  3.4773E-14
 -1.2554E-13  1.1061E-13 -5.0894E-14  4.7321E-14  3.4773E-14  4.4417E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    7.341775  122.208757   -0.983851   -0.029265    0.226787  2455322.826336
# Heliocentric elements and errors
Epoch:              2455322.5000  =  2010/05/06
Mean Anomaly:          359.56590 +/-     0.001
Argument of Peri:       20.09146 +/-     0.003
Long of Asc Node:      107.40639 +/-     0.000
Inclination:            24.78829 +/-     0.000
Eccentricity:         0.60785796 +/-    0.0000
Semi-Major Axis:     96.70898684 +/-    0.0111
Time of Perihelion: 2455741.3739 +/-      59.9
Perihelion:          37.92365971 +/-    0.0060
Aphelion:           155.49431398 +/-    0.0183
Period (y)              951.0612 +/-      0.16
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.87595124 +/-    0.0002
Ecliptic Y           31.29626794 +/-    0.0003
Ecliptic Z            4.87576294 +/-    0.0000
Ecliptic XDOT        -0.00256630 +/-    0.0000
Ecliptic YDOT        -0.00199436 +/-    0.0000
Ecliptic ZDOT         0.00140641 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.93462354 +/-    0.0002
Geocenter to KBO     38.15272205 +/-    0.0003
# Hcoef:  6.12

The following table shows the complete astrometric record for 11BR163. 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 (11BR163) followed by the observatory code and reference code for the source of the astrometry.

2010 05  06.32557  08 25 17.049  +26 48 39.30  21.8G 11BR163   F51  C~2qaw      
2010 05  06.33437  08 25 17.081  +26 48 39.11  22.8G 11BR163   F51  C~2qaw      
2010 05  09.26038  08 25 25.294  +26 48 00.97  21.6G 11BR163   F51  C~2qaw      
2010 05  09.26905  08 25 25.305  +26 48 01.07  21.9G 11BR163   F51  C~2qaw      
2010 05  10.27052  08 25 28.346  +26 47 47.39  21.6G 11BR163   F51  C~2qaw      
2010 05  10.27824  08 25 28.393  +26 47 47.15  22.2G 11BR163   F51  C~2qaw      
2010 05  11.28009  08 25 31.517  +26 47 33.30  22.3G 11BR163   F51  C~2qaw      
2010 05  12.27001  08 25 34.722  +26 47 19.25  21.8G 11BR163   F51  C~2qaw      
2010 05  12.27860  08 25 34.739  +26 47 19.07  22.0G 11BR163   F51  C~2qaw      
2011 01  27.35133  08 38 05.079  +26 56 05.99  21.8r 11BR163   F51  C~1w3m      
2011 01  27.37872  08 38 04.906  +26 56 06.78  21.6r 11BR163   F51  C~1w3m      
2011 01  27.39186  08 38 04.842  +26 56 06.96  21.8r 11BR163   F51  C~1w3m      
2011 01  28.52360  08 37 58.465  +26 56 37.98  21.9g 11BR163   F51  C~1w3m      
2011 01  30.46697  08 37 47.644  +26 57 30.50  21.9w 11BR163   F51  C~1w3m      
2011 01  30.48218  08 37 47.566  +26 57 30.96  22.0w 11BR163   F51  C~1w3m      
2011 01  30.49850  08 37 47.472  +26 57 31.23  21.5G 11BR163   F51  C~2qaw      
2011 01  30.51359  08 37 47.380  +26 57 31.66  21.5G 11BR163   F51  C~2qaw      
2011 03  30.22853  08 33 41.444  +27 12 17.04  21.8G 11BR163   F51  C~2qaw      
2011 03  30.23802  08 33 41.439  +27 12 16.92  22.9G 11BR163   F51  C~2qaw      
2012 01  23.52820  08 47 23.385  +27 11 18.24  22.1g 11BR163   F51  C~1w3m      
2012 01  23.54033  08 47 23.335  +27 11 17.39  22.4g 11BR163   F51  C~1w3m      
2012 01  25.52300  08 47 12.343  +27 12 17.64  21.6r 11BR163   F51  C~1w3m      
2012 01  25.53506  08 47 12.265  +27 12 17.86  21.7r 11BR163   F51  C~1w3m      
2012 02  13.27209  08 45 28.940  +27 20 35.91  21.6i 11BR163   F51  C~1w3m      
2012 02  13.30399  08 45 28.774  +27 20 36.77  21.9w 11BR163   F51  C~1w3m      
2012 02  13.31851  08 45 28.697  +27 20 37.08  21.9w 11BR163   F51  C~1w3m      
2012 02  13.33305  08 45 28.612  +27 20 37.47  21.9w 11BR163   F51  C~1w3m      
2012 02  13.34765  08 45 28.536  +27 20 37.84  21.8w 11BR163   F51  C~1w3m      
2012 02  15.45851  08 45 17.309  +27 21 25.92  21.7i 11BR163   F51  C~1w3m      
2012 11  01.60973  08 59 51.657  +26 46 11.76  21.6i 11BR163   F51  C~1w3m      
2012 11  01.64754  08 59 51.696  +26 46 12.62  21.0G 11BR163   F51  C~2qaw      
2013 01  03.56621  08 58 00.396  +27 15 44.65  21.3i 11BR163   F51  C~1w3m      
2013 01  03.57914  08 58 00.348  +27 15 44.78  21.5i 11BR163   F51  C~1w3m      
2013 02  05.34144  08 55 06.683  +27 32 54.04  22.1w 11BR163   F51  C~1w3m      
2013 11  18.58262  09 08 51.325  +27 03 43.71  21.9G 11BR163   F51  C~2qaw      
2014 01  05.57825  09 06 50.281  +27 29 07.05  21.9g 11BR163   F51  C~1w3m      
2014 03  02.24226  09 01 58.493  +27 55 29.67  21.4G 11BR163   F51  C~2qaw      
2014 03  02.25374  09 01 58.433  +27 55 29.39  21.8G 11BR163   F51  C~2qaw      
2014 03  02.27666  09 01 58.317  +27 55 30.05  21.3G 11BR163   F51  C~2qaw      
2014 03  25.24072  09 00 29.539  +27 59 44.42  21.7w 11BR163   F51  C~1w3m      
2014 03  25.25363  09 00 29.509  +27 59 44.61  21.6w 11BR163   F51  C~1w3m      
2014 03  25.26557  09 00 29.459  +27 59 44.55  21.8w 11BR163   F51  C~1w3m      
2014 03  25.27759  09 00 29.434  +27 59 44.60  21.7w 11BR163   F51  C~1w3m      
2014 06  07.30490  09 01 50.384  +27 43 42.48  21.9G 11BR163   F51  C~2qaw      
2014 12  18.64876  09 16 57.430  +27 28 29.68  21.8G 11BR163   F51  C~2qaw      
2015 02  17.33093  09 12 06.254  +28 02 03.76  21.8G 11BR163   F51  C~2qaw      
2015 02  17.34373  09 12 06.174  +28 02 04.06  21.9G 11BR163   F51  C~2qaw      
2015 02  17.35656  09 12 06.105  +28 02 04.45  21.6G 11BR163   F51  C~2qaw      
2015 02  17.36948  09 12 06.032  +28 02 04.72  21.8G 11BR163   F51  C~2qaw      
2015 02  18.33168  09 12 00.911  +28 02 28.72  21.9G 11BR163   F51  C~2qaw      
2015 02  18.34428  09 12 00.836  +28 02 28.83  21.8G 11BR163   F51  C~2qaw      
2015 02  18.35692  09 12 00.771  +28 02 29.04  21.5G 11BR163   F51  C~2qaw      
2015 02  18.36965  09 12 00.699  +28 02 29.64  22.0G 11BR163   F51  C~2qaw      
2015 03  16.23953  09 09 58.877  +28 10 08.83  21.6G 11BR163   F51  C~2qaw      
2015 03  16.25258  09 09 58.839  +28 10 09.03  21.9G 11BR163   F51  C~2qaw      
2015 03  16.26560  09 09 58.784  +28 10 09.15  22.1G 11BR163   F51  C~2qaw      
2015 03  16.27854  09 09 58.724  +28 10 09.29  22.1G 11BR163   F51  C~2qaw      
2015 12  07.51381  09 26 16.562  +27 29 46.00  21.7G 11BR163   F51  C~2qaw      
2015 12  07.52606  09 26 16.536  +27 29 46.53  21.8G 11BR163   F51  C~2qaw      
2015 12  07.53830  09 26 16.518  +27 29 46.80  21.8G 11BR163   F51  C~2qaw      
2015 12  07.55058  09 26 16.500  +27 29 47.27  21.9G 11BR163   F51  C~2qaw      
2016 01  29.38940  09 22 52.290  +28 01 18.43  21.5G 11BR163   F51  C~2qaw      
2016 01  29.40097  09 22 52.252  +28 01 18.76  22.0G 11BR163   F51  C~2qaw      
2016 01  29.41237  09 22 52.177  +28 01 19.36  21.4G 11BR163   F51  C~2qaw      
2016 01  29.42367  09 22 52.121  +28 01 19.72  22.1G 11BR163   F51  C~2qaw      
2016 02  06.37908  09 22 08.787  +28 05 36.90  21.8G 11BR163   F51  C~2qaw      
2016 02  06.38966  09 22 08.720  +28 05 37.15  21.6G 11BR163   F51  C~2qaw      
2016 02  06.40022  09 22 08.664  +28 05 37.50  21.8G 11BR163   F51  C~2qaw      
2016 02  06.41082  09 22 08.605  +28 05 37.93  21.5G 11BR163   F51  C~2qaw      
2016 02  14.33654  09 21 25.185  +28 09 30.06  21.4G 11BR163   F51  C~2qaw      
2016 02  14.34830  09 21 25.141  +28 09 30.76  21.3G 11BR163   F51  C~2qaw      
2016 02  14.35972  09 21 25.080  +28 09 30.95  21.9G 11BR163   F51  C~2qaw      
2016 02  14.37121  09 21 25.035  +28 09 31.50  21.6G 11BR163   F51  C~2qaw      
2016 03  15.23990  09 18 58.822  +28 19 27.98  21.1G 11BR163   F51  C~2qaw      
2016 03  15.25246  09 18 58.756  +28 19 28.17  21.8G 11BR163   F51  C~2qaw      
2016 03  15.26490  09 18 58.732  +28 19 28.20  21.7G 11BR163   F51  C~2qaw      
2016 03  15.27740  09 18 58.673  +28 19 28.44  21.0G 11BR163   F51  C~2qaw      
2016 04  20.32695  09 17 31.715  +28 19 53.57  21.5G 11BR163   F51  C~2qaw      
2016 04  28.31705  09 17 30.805  +28 18 17.60  21.9G 11BR163   F51  C~2qaw      
2016 05  02.31366  09 17 33.046  +28 17 19.56  21.8G 11BR163   F51  C~2qaw      
2016 05  29.27020  09 18 34.337  +28 07 39.03  21.6G 11BR163   F51  C~2qaw      
2016 05  29.28333  09 18 34.386  +28 07 38.61  21.7G 11BR163   F51  C~2qaw      
2016 05  29.29645  09 18 34.449  +28 07 38.30  21.6G 11BR163   F51  C~2qaw      
2016 05  29.30962  09 18 34.473  +28 07 37.80  22.0G 11BR163   F51  C~2qaw      
2017 01  21.61171  09 32 28.529  +28 03 25.69  21.3G 11BR163   F51  C~2qaw      
2017 01  23.45644  09 32 19.136  +28 04 32.60  21.5G 11BR163   F51  C~2qaw      
2017 01  24.42810  09 32 14.145  +28 05 07.94  21.5G 11BR163   F51  C~2qaw      
2017 01  25.44189  09 32 08.862  +28 05 44.06  22.0G 11BR163   F51  C~2qaw      
2017 01  31.52504  09 31 36.645  +28 09 16.46  21.9G 11BR163   F51  C~2qaw      
2017 01  31.53578  09 31 36.585  +28 09 16.81  21.7G 11BR163   F51  C~2qaw      
2017 01  31.54653  09 31 36.521  +28 09 17.11  21.9G 11BR163   F51  C~2qaw      
2017 01  31.55726  09 31 36.468  +28 09 17.47  21.7G 11BR163   F51  C~2qaw      
2017 02  05.37676  09 31 10.399  +28 11 57.32  21.5G 11BR163   F51  C~2qaw      
2017 02  05.60380  09 31 09.162  +28 12 04.47  21.9G 11BR163   F51  C~2qaw      
2017 02  05.63819  09 31 08.958  +28 12 05.61  21.8G 11BR163   F51  C~2qaw      
2017 02  14.50565  09 30 20.668  +28 16 35.18  22.4G 11BR163   F51  C~2qaw      
2017 03  13.43313  09 28 05.907  +28 26 12.89  21.8G 11BR163   F51  C~2qaw      
2017 03  28.36449  09 27 09.567  +28 28 27.71  21.5G 11BR163   F51  C~2qaw      
2017 03  28.37569  09 27 09.539  +28 28 27.72  21.7G 11BR163   F51  C~2qaw      
2017 03  28.38695  09 27 09.503  +28 28 27.73  21.6G 11BR163   F51  C~2qaw      
2017 03  28.39812  09 27 09.463  +28 28 27.70  21.5G 11BR163   F51  C~2qaw      
2018 01  17.59909  09 41 45.831  +28 04 43.35  22.2G 11BR163   F51  C~2qaw      
2018 01  17.61003  09 41 45.756  +28 04 43.49  21.6G 11BR163   F51  C~2qaw      
2018 01  17.62097  09 41 45.726  +28 04 44.32  21.7G 11BR163   F51  C~2qaw      

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     0.12       0.00     0.12
  2   0.0000      0.00     0.26       0.00     0.05
  3   0.0080      0.00     0.03       0.00    -0.15
  4   0.0081      0.00    -0.18       0.00     0.07
  5   0.0108      0.00     0.00       0.00    -0.01
  6   0.0108      0.00     0.36       0.00    -0.14
  7   0.0136      0.00     0.14       0.00    -0.09
  8   0.0163      0.00     0.12       0.00    -0.12
  9   0.0163      0.00    -0.04       0.00    -0.18
 10   0.7283      0.00     0.06       0.00     0.12
 11   0.7284      0.00    -0.20       0.00     0.15
 12   0.7284      0.00    -0.04       0.00    -0.04
 13   0.7315      0.00    -0.55       0.00    -0.04
 14   0.7369      0.00     0.00       0.00     0.01
 15   0.7369      0.00     0.13       0.00     0.06
 16   0.7370      0.00     0.11       0.00    -0.10
 17   0.7370      0.00     0.02       0.00    -0.07
 18   0.8977      0.00     0.00       0.00     0.11
 19   0.8978      0.00     0.20       0.00    -0.03
 20   1.7172      0.00    -0.33       0.00    -0.27
 21   1.7172      0.00    -0.06       0.00    -1.48
 22   1.7226      0.00    -0.14       0.00    -0.07
 23   1.7227      0.00    -0.29       0.00    -0.20
 24   1.7740      0.00    -0.10       0.00     0.17
 25   1.7741      0.00     0.00       0.00     0.27
 26   1.7741      0.00     0.03       0.00     0.24
 27   1.7741      0.00    -0.06       0.00     0.28
 28   1.7742      0.00    -0.00       0.00     0.31
 29   1.7800      0.00    -0.09       0.00     0.21
 30   2.4922      0.00     0.10       0.00    -0.09
 31   2.4923      0.00    -0.22       0.00     0.12
 32   2.6646      0.00     0.22       0.00     0.36
 33   2.6646      0.00     0.43       0.00     0.06
 34   2.7543      0.00    -0.04       0.00     0.30
 35   3.5380      0.00     0.02       0.00    -0.02
 36   3.6694      0.00     0.11       0.00     0.04
 37   3.8218      0.00    -0.17       0.00     0.29
 38   3.8218      0.00    -0.24       0.00    -0.20
 39   3.8219      0.00    -0.34       0.00     0.06
 40   3.8848      0.00    -0.02       0.00    -0.01
 41   3.8848      0.00     0.11       0.00     0.12
 42   3.8848      0.00    -0.10       0.00    -0.00
 43   3.8849      0.00     0.06       0.00    -0.01
 44   4.0876      0.00    -0.23       0.00    -0.19
 45   4.6196      0.00     0.32       0.00     0.61
 46   4.7858      0.00     0.11       0.00     0.03
 47   4.7858      0.00    -0.04       0.00     0.00
 48   4.7858      0.00    -0.03       0.00     0.07
 49   4.7859      0.00    -0.07       0.00     0.02
 50   4.7885      0.00     0.13       0.00     0.24
 51   4.7886      0.00     0.03       0.00     0.04
 52   4.7886      0.00     0.08       0.00    -0.07
 53   4.7886      0.00     0.04       0.00     0.22
 54   4.8594      0.00    -0.11       0.00    -0.04
 55   4.8595      0.00     0.10       0.00     0.02
 56   4.8595      0.00     0.05       0.00    -0.01
 57   4.8596      0.00    -0.08       0.00    -0.01
 58   5.5885      0.00     0.08       0.00     0.05
 59   5.5885      0.00    -0.01       0.00     0.18
 60   5.5885      0.00     0.03       0.00     0.05
 61   5.5886      0.00     0.06       0.00     0.11
 62   5.7332      0.00    -0.04       0.00    -0.07
 63   5.7333      0.00     0.34       0.00    -0.13
 64   5.7333      0.00     0.15       0.00     0.09
 65   5.7333      0.00     0.24       0.00     0.06
 66   5.7551      0.00     0.10       0.00     0.03
 67   5.7551      0.00    -0.01       0.00    -0.05
 68   5.7552      0.00     0.03       0.00    -0.03
 69   5.7552      0.00     0.03       0.00     0.07
 70   5.7769      0.00    -0.40       0.00    -0.37
 71   5.7769      0.00    -0.08       0.00     0.00
 72   5.7770      0.00    -0.05       0.00    -0.12
 73   5.7770      0.00     0.23       0.00     0.11
 74   5.8588      0.00    -0.09       0.00     0.06
 75   5.8588      0.00    -0.30       0.00     0.10
 76   5.8588      0.00     0.11       0.00    -0.02
 77   5.8589      0.00     0.00       0.00     0.07
 78   5.9576      0.00    -0.05       0.00    -0.11
 79   5.9794      0.00    -0.22       0.00    -1.45
 80   5.9904      0.00    -0.11       0.00     0.02
 81   6.0642      0.00     0.02       0.00     0.05
 82   6.0642      0.00     0.04       0.00    -0.02
 83   6.0643      0.00     0.27       0.00     0.03
 84   6.0643      0.00    -0.09       0.00    -0.12
 85   6.7140      0.00    -0.01       0.00     0.19
 86   6.7190      0.00    -0.04       0.00    -0.08
 87   6.7217      0.00     0.17       0.00     0.19
 88   6.7245      0.00    -0.13       0.00    -0.04
 89   6.7411      0.00     0.09       0.00     0.08
 90   6.7412      0.00     0.07       0.00     0.07
 91   6.7412      0.00    -0.01       0.00     0.00
 92   6.7412      0.00     0.07       0.00     0.00
 93   6.7544      0.00    -0.11       0.00     0.06
 94   6.7550      0.00     0.18       0.00    -0.08
 95   6.7551      0.00    -0.04       0.00    -0.03
 96   6.7794      0.00    -0.01       0.00    -0.15
 97   6.8531      0.00     0.09       0.00     0.20
 98   6.8940      0.00    -0.12       0.00     0.06
 99   6.8940      0.00     0.01       0.00     0.03
100   6.8941      0.00     0.01       0.00    -0.01
101   6.8941      0.00    -0.04       0.00    -0.08
102   7.7023      0.00    -0.07       0.00     0.00
103   7.7024      0.00    -0.40       0.00    -0.27
104   7.7024      0.00    -0.06       0.00     0.14

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.

11BR163    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        98.189    98.189    98.190
ecceobj         0.613     0.613     0.613
incobj         24.748    24.748    24.748
qmin           36.059    35.927    36.142
qmax          163.959   162.862   164.224
amean          97.881    97.390    98.070
amin           96.081    95.710    95.957
amax          100.706    99.955   100.827
emean           0.616     0.615     0.617
emin            0.600     0.601     0.603
emax            0.631     0.631     0.631
imean          22.619    22.543    22.631
imin           21.772    21.568    21.807
imax           23.673    23.630    23.669
excite_mean     0.726     0.725     0.727
fracstop        1.000     1.000     1.000
cjmean          2.929     2.929     2.929

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       108.1     115.9     106.9
kozaiamp         90.7      97.8      89.1