Orbit Fit and Astrometric record for 16EB195

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: 16EB195   
# Created Sat Dec 16 02:38:13 2017
# Orbit generated from Bernstein formalism
# Fitting   51 observations of   52
# Arc:   2.00y
# First observation: 2015/02/27
#  Last observation: 2017/02/25
Preliminary a, adot, b, bdot, g, gdot:
  -0.048186   0.454994  -0.001864   0.023409   0.204155   0.000000
# Chi-squared of fit:   156.54 DOF:   96 RMS:  0.31
# Min/Max residuals:    -0.79    0.85
# Exact a, adot, b, bdot, g, gdot:
  4.171834E-05  3.749449E-01  9.619422E-07  1.481431E-02  1.402150E-01 -2.077981E-02
# Covariance matrix:
  3.6649E-13 -5.1072E-13  9.4779E-15 -1.9529E-14 -9.1663E-14 -3.6726E-13
 -5.1072E-13  9.1387E-13 -1.2622E-14  3.9481E-14  3.0440E-13  7.7280E-13
  9.4779E-15 -1.2622E-14  1.6786E-13 -1.2383E-13  9.0160E-15 -1.1102E-14
 -1.9529E-14  3.9481E-14 -1.2383E-13  1.0868E-13  1.2603E-14  3.7638E-14
 -9.1663E-14  3.0440E-13  9.0160E-15  1.2603E-14  3.3470E-13  3.0713E-13
 -3.6726E-13  7.7280E-13 -1.1102E-14  3.7638E-14  3.0713E-13  7.4103E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   23.498552  143.499523   -0.249290    0.381012   -0.875991  2457080.804798
# Heliocentric elements and errors
Epoch:              2457080.5000  =  2015/02/27
Mean Anomaly:          358.47102 +/-     0.000
Argument of Peri:       90.92626 +/-     0.000
Long of Asc Node:       59.43627 +/-     0.000
Inclination:            20.80463 +/-     0.000
Eccentricity:         0.46330152 +/-    0.0000
Semi-Major Axis:     14.93397809 +/-    0.0005
Time of Perihelion: 2457170.0285 +/-       0.0
Perihelion:           8.01504329 +/-    0.0003
Aphelion:            21.85291289 +/-    0.0007
Period (y)               57.7127 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -6.17696696 +/-    0.0000
Ecliptic Y            4.25858545 +/-    0.0000
Ecliptic Z            2.84368883 +/-    0.0000
Ecliptic XDOT        -0.00396662 +/-    0.0000
Ecliptic YDOT        -0.00618075 +/-    0.0000
Ecliptic ZDOT         0.00010359 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    8.02353022 +/-    0.0000
Geocenter to KBO      7.13190259 +/-    0.0000
# Hcoef: 11.94

The following table shows the complete astrometric record for 16EB195. 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 (16EB195) followed by the observatory code and reference code for the source of the astrometry.

2015 02  27.30402  10 20 28.74   +35 38 54.7   20.2V 16EB195   G96  C~29Em      
2015 02  27.31136  10 20 28.55   +35 38 54.7   20.5V 16EB195   G96  C~29Em      
2015 02  27.31870  10 20 28.39   +35 38 55.6   20.6V 16EB195   G96  C~29Em      
2015 02  27.32603  10 20 28.22   +35 38 56.2   21.0V 16EB195   G96  C~29Em      
2016 02  03.47120  11 56 23.150  +24 55 08.40  21.1w 16EB195   F51  C~29Em      
2016 02  03.48419  11 56 22.996  +24 55 10.42  21.2w 16EB195   F51  C~29Em      
2016 02  03.49737  11 56 22.868  +24 55 12.65  21.1w 16EB195   F51  C~29Em      
2016 02  10.43219  11 54 59.242  +25 13 41.73  21.0w 16EB195   F51  C~29Em      
2016 02  10.44376  11 54 59.073  +25 13 43.53  21.0w 16EB195   F51  C~29Em      
2016 02  10.45535  11 54 58.926  +25 13 45.29  21.1w 16EB195   F51  C~29Em      
2016 02  10.46700  11 54 58.760  +25 13 47.32  21.1w 16EB195   F51  C~29Em      
2016 03  13.50686  11 45 21.195  +26 22 37.10  20.9w 16EB195   F51  C~1oeJ      
2016 03  13.51800  11 45 20.970  +26 22 37.98  21.0w 16EB195   F51  C~1oeJ      
2016 03  13.52918  11 45 20.731  +26 22 38.96  20.8w 16EB195   F51  C~1oeJ      
2016 03  16.32495  11 44 23.16   +26 26 17.9   20.8R 16EB195   926  C~1oeJ      
2016 03  16.34926  11 44 22.70   +26 26 19.4   20.9R 16EB195   926  C~1oeJ      
2016 03  16.36708  11 44 22.31   +26 26 21.0   20.5R 16EB195   926  C~1oeJ      
2016 03  17.02029  11 44 08.89   +26 27 06.8   21.3V 16EB195   033  C~1oeJ      
2016 03  17.02300  11 44 08.82   +26 27 06.9   21.2V 16EB195   033  C~1oeJ      
2016 03  17.02572  11 44 08.81   +26 27 07.2   20.9V 16EB195   033  C~1oeJ      
2016 03  17.02843  11 44 08.69   +26 27 07.5   21.6V 16EB195   033  C~1oeJ      
2016 03  17.03115  11 44 08.61   +26 27 07.9   20.8V 16EB195   033  C~1oeJ      
2016 03  17.03385  11 44 08.59   +26 27 08.0   21.1V 16EB195   033  C~1oeJ      
2016 03  17.11130  11 44 06.92   +26 27 12.9   21.9V 16EB195   033  C~1oeJ      
2016 03  17.11436  11 44 06.88   +26 27 13.0   21.7V 16EB195   033  C~1oeJ      
2016 03  17.11743  11 44 06.82   +26 27 13.3   21.8V 16EB195   033  C~1oeJ      
2016 03  17.12049  11 44 06.76   +26 27 13.3   21.9V 16EB195   033  C~1oeJ      
2016 03  17.12355  11 44 06.72   +26 27 13.5   21.6V 16EB195   033  C~1oeJ      
2016 03  17.12661  11 44 06.64   +26 27 13.9   21.9V 16EB195   033  C~1oeJ      
2016 03  17.14543  11 44 06.24   +26 27 15.2   21.5V 16EB195   033  C~1oeJ      
2016 03  17.14848  11 44 06.17   +26 27 15.6   21.4V 16EB195   033  C~1oeJ      
2016 03  17.15155  11 44 06.09   +26 27 15.7   21.6V 16EB195   033  C~1oeJ      
2016 03  17.26135  11 44 03.95   +26 27 24.2   20.5R 16EB195   926  C~1oeJ      
2016 03  17.27748  11 44 03.61   +26 27 25.8   20.4R 16EB195   926  C~1oeJ      
2016 03  17.29358  11 44 03.27   +26 27 26.7   20.4R 16EB195   926  C~1oeJ      
2016 04  02.12677  11 38 49.11   +26 37 07.2   20.9R 16EB195   H36  C~1qBJ      
2016 04  02.17226  11 38 48.33   +26 37 07.9   20.6R 16EB195   H36  C~1qBJ      
2016 04  03.17149  11 38 29.86   +26 37 09.0   21.1R 16EB195   H36  C~1qBJ      
2016 04  03.20558  11 38 29.18   +26 37 08.8   20.1R 16EB195   H36  C~1qBJ      
2016 04  03.24467  11 38 28.44   +26 37 08.8   20.8R 16EB195   H36  C~1qBJ      
2016 04  29.20004  11 32 17.20   +26 11 57.1   21.1V 16EB195   G96  C~1reS      
2016 04  29.20612  11 32 17.13   +26 11 56.4   21.2V 16EB195   G96  C~1reS      
2016 04  29.21219  11 32 17.06   +26 11 55.6   20.9V 16EB195   G96  C~1reS      
2016 04  29.21825  11 32 17.02   +26 11 54.5   21.6V 16EB195   G96  C~1reS      
2017 02  21.51220  13 02 08.83   +14 07 23.5   20.4R 16EB195   695  C~29Em      
2017 02  21.52685  13 02 08.68   +14 07 25.3         16EB195   695  C~29Em      
2017 02  24.45469  13 01 34.893  +14 13 25.81  21.3w 16EB195   F51  C~29Em      
2017 02  24.46719  13 01 34.725  +14 13 27.42  21.6w 16EB195   F51  C~29Em      
2017 02  24.56296  13 01 33.551  +14 13 39.09  21.3w 16EB195   F51  C~29Em      
2017 02  24.57560  13 01 33.389  +14 13 40.73  21.1w 16EB195   F51  C~29Em      
2017 02  25.35804  13 01 23.78   +14 15 15.9   20.4R 16EB195   H36  C~29Em      
2017 02  25.38114  13 01 23.45   +14 15 19.1   20.5R 16EB195   H36  C~29Em      

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     0.15
  2   0.0000     -2.13     0.05      -0.91    -0.45
  3   0.0000     -4.28    -0.03      -0.85    -0.08
  4   0.0001     -6.42    -0.10      -1.12    -0.03
  5   0.9341  88464.25     0.13    3544.32     0.11
  6   0.9341  88460.84     0.05    3544.77    -0.06
  7   0.9341  88457.64     0.21    3545.64     0.17
  8   0.9531  86607.36    -0.06    3807.12    -0.09
  9   0.9532  86603.94    -0.13    3807.26    -0.21
 10   0.9532  86600.83     0.12    3807.56    -0.16
 11   0.9532  86597.28    -0.04    3807.93    -0.04
 12   1.0409  76461.46    -0.25    2642.91     0.00
 13   1.0410  76458.05    -0.10    2641.86     0.05
 14   1.0410  76454.40    -0.18    2640.79     0.08
 15   1.0487  75587.24    -0.60    2369.03     0.18
 16   1.0487  75580.48     0.23    2366.65     0.37
 17   1.0488  75574.54    -0.15    2364.92     0.54
 18   1.0506  75376.05     0.42    2297.33     0.22
 19   1.0506  75375.10     0.31    2296.86     0.04
 20   1.0506  75374.78     0.84    2297.04     0.51
 21   1.0506  75373.08    -0.03    2296.34     0.10
 22   1.0506  75371.81    -0.46    2296.05     0.10
 23   1.0506  75371.50     0.06    2295.98     0.32
 24   1.0508  75347.31    -0.36    2286.87    -0.49
 25   1.0508  75346.74     0.01    2286.64    -0.40
 26   1.0508  75345.80     0.00    2286.42    -0.29
 27   1.0508  75345.04     0.18    2285.94    -0.44
 28   1.0508  75344.41     0.48    2285.79    -0.26
 29   1.0508  75343.14     0.16    2285.50    -0.22
 30   1.0509  75337.27     0.02    2283.43    -0.28
 31   1.0509  75336.13    -0.18    2283.22    -0.16
 32   1.0509  75335.06    -0.32    2282.67    -0.39
 33   1.0512  75302.67     0.04    2272.96     0.21
 34   1.0513  75297.36    -0.26    2271.64     0.62
 35   1.0513  75292.50    -0.13    2269.70     0.42
 36   1.0947  70980.64    -0.49     293.11    -0.79
 37   1.0948  70970.45     0.25     287.63     0.33
 38   1.0975  70738.51     0.07     144.48     0.85
 39   1.0976  70730.12    -0.31     139.00     0.41
 40   1.0977  70720.86    -0.42     133.23     0.44
 41   1.1688  66987.01     0.20   -4057.15    -0.04
 42   1.1688  66986.55     0.09   -4058.30    -0.13
 43   1.1688  66986.15     0.03   -4059.54    -0.32
 44   1.1688  66986.30     0.52   -4060.82    -0.54
 45   1.9855 186016.47    -0.47    9476.63    -0.30
 46   1.9856 186011.34    -0.15    9476.46    -0.08
 47   1.9936 184911.33    -0.03    9393.34     0.06
 48   1.9936 184906.08    -0.33    9392.75    -0.03
 49   1.9939 184868.97     0.49    9389.02     0.24
 50   1.9939 184863.82     0.34    9388.54     0.29
 51   1.9960 184560.73 (   1.24)   9357.78 (  -0.44)
 52   1.9961 184550.41     0.16    9356.65    -0.52

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.

16EB195    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        14.908    14.909    14.908
ecceobj         0.458     0.458     0.458
incobj         20.788    20.789    20.788
qmin            8.080     7.329     8.080
qmax           23.076    22.716    23.007
amean          15.128    14.211    15.195
amin           14.879    12.969    14.746
amax           15.714    15.451    15.650
emean           0.455     0.439     0.455
emin            0.446     0.370     0.445
emax            0.469     0.470     0.472
imean          20.242    19.193    20.472
imin           19.766    16.935    19.766
imax           20.543    21.490    20.774
excite_mean     0.572     0.549     0.574
fracstop        0.001     0.005     0.002
cjmean          3.170     3.287     3.162

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       103.9     168.6     111.9
kozaiamp         13.8      75.1      22.2