Orbit Fit and Astrometric record for 523798

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: 523798    
# Created Thu Feb 21 02:07:16 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   70 observations of   70
# Arc:   3.18y
# First observation: 2014/12/11
#  Last observation: 2018/02/13
# Chi-squared of fit:   101.23 DOF:  134 RMS:  0.21
# Min/Max residuals:    -1.00    1.00
# Exact a, adot, b, bdot, g, gdot:
  1.642710E-05  9.256260E-02 -3.522718E-05 -2.092942E-01  9.333317E-02 -6.512488E-02
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   48.614739  121.230414    0.660418    0.547672   -0.482373  2457003.102138
# Heliocentric elements and errors
Epoch:              2457002.5000  =  2014/12/11
Mean Anomaly:          358.71909 +/-     0.000
Argument of Peri:      162.92690 +/-     0.000
Long of Asc Node:      315.89421 +/-     0.000
Inclination:            71.97667 +/-     0.000
Eccentricity:         0.86000704 +/-    0.0000
Semi-Major Axis:     74.67526363 +/-    0.0000
Time of Perihelion: 2457841.1466 +/-       0.0
Perihelion:          10.45401100 +/-    0.0000
Aphelion:           138.89651626 +/-    0.0000
Period (y)              645.3174 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -3.48935779 +/-    0.0000
Ecliptic Y            7.02454472 +/-    0.0000
Ecliptic Z            8.03846483 +/-    0.0000
Ecliptic XDOT        -0.00405934 +/-    0.0000
Ecliptic YDOT         0.00144594 +/-    0.0000
Ecliptic ZDOT        -0.00549215 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   11.23117030 +/-    0.0000
Geocenter to KBO     10.71444461 +/-    0.0000
# Hcoef: 11.07

The following table shows the complete astrometric record for 523798. 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 (523798) followed by the observatory code and reference code for the source of the astrometry.

2014 12  11.60136  09 49 07.373  +65 57 24.79  21.8G 523798    F51  C~2jiQ      
2014 12  11.61594  09 49 07.046  +65 57 26.85  22.2G 523798    F51  C~2jiQ      
2014 12  11.63046  09 49 06.695  +65 57 28.98  21.9G 523798    F51  C~2jiQ      
2015 01  06.52211  09 33 43.901  +66 48 50.32  22.1G 523798    F51  C~2jiQ      
2015 01  06.53562  09 33 43.243  +66 48 51.47  22.0G 523798    F51  C~2jiQ      
2015 02  25.38202  08 50 15.780  +66 09 56.24  21.2G 523798    F51  C~2jiQ      
2015 03  28.28726  08 32 29.433  +64 01 06.64  21.7G 523798    F51  C~2jiQ      
2015 12  30.56150  09 32 09.314  +52 33 57.57  21.0G 523798    F51  C~2jiQ      
2015 12  30.57441  09 32 08.970  +52 33 58.50  20.5G 523798    F51  C~2jiQ      
2015 12  30.58752  09 32 08.549  +52 33 59.46  21.4G 523798    F51  C~2jiQ      
2015 12  30.60096  09 32 08.164  +52 34 00.21  21.2G 523798    F51  C~2jiQ      
2016 02  23.37486  08 59 35.947  +52 10 44.31  21.4G 523798    F51  C~2jiQ      
2016 02  23.40704  08 59 34.852  +52 10 39.70  21.4G 523798    F51  C~2jiQ      
2016 02  23.45439  08 59 33.149  +52 10 32.80  22.4G 523798    F51  C~2jiQ      
2016 02  23.47939  08 59 32.310  +52 10 29.33  21.7G 523798    F51  C~2jiQ      
2016 03  20.25772  08 47 14.449  +50 47 16.41  21.6G 523798    F51  C~2jiQ      
2016 03  20.27077  08 47 14.153  +50 47 13.46  20.8G 523798    F51  C~2jiQ      
2016 03  20.28383  08 47 13.860  +50 47 09.96  21.2G 523798    F51  C~2jiQ      
2017 02  01.41919  09 13 44.536  +37 11 53.09  21.1w 523798    F51  C~28Fb      
2017 02  01.43072  09 13 44.197  +37 11 52.57  21.2w 523798    F51  C~28Fb      
2017 02  01.44209  09 13 43.838  +37 11 52.20  21.2w 523798    F51  C~28Fb      
2017 02  01.45345  09 13 43.485  +37 11 51.60  20.9w 523798    F51  C~28Fb      
2017 02  02.391851 09 13 15.371  +37 11 09.95  21.1G 523798    568  C~28Fb      
2017 02  02.392836 09 13 15.342  +37 11 09.90  21.2G 523798    568  C~28Fb      
2017 02  02.393819 09 13 15.310  +37 11 09.86  21.0G 523798    568  C~28Fb      
2017 02  07.46820  09 10 43.20   +37 06 42.3   20.2R 523798    291  C~28Fb      
2017 02  07.48070  09 10 42.83   +37 06 41.6   19.9R 523798    291  C~28Fb      
2017 02  21.23845  09 04 03.03   +36 48 19.8   21.0V 523798    I52  C~28Fb      
2017 02  21.25030  09 04 02.72   +36 48 18.3   21.2V 523798    I52  C~28Fb      
2017 02  21.25342  09 04 02.60   +36 48 19.3   20.2V 523798    G96  C~28Fb      
2017 02  21.25930  09 04 02.49   +36 48 17.4   21.2V 523798    G96  C~28Fb      
2017 02  21.26519  09 04 02.32   +36 48 17.0   20.4V 523798    G96  C~28Fb      
2017 02  21.27107  09 04 02.16   +36 48 16.7   20.7V 523798    G96  C~28Fb      
2017 02  21.27523  09 04 02.02   +36 48 16.1   21.3V 523798    I52  C~28Fb      
2017 02  22.21319  09 03 35.98   +36 46 40.5   20.9V 523798    I52  C~28Fb      
2017 02  22.22906  09 03 35.47   +36 46 38.4   21.4V 523798    I52  C~28Fb      
2017 02  22.24272  09 03 35.11   +36 46 37.2   20.9V 523798    I52  C~28Fb      
2017 02  22.25526  09 03 34.79   +36 46 36.3   21.9V 523798    I52  C~28Fb      
2017 02  23.377631 09 03 03.915  +36 44 38.46  21.4G 523798    568  C~28Fb      
2017 02  23.379169 09 03 03.872  +36 44 38.27  21.4G 523798    568  C~28Fb      
2017 02  23.380708 09 03 03.831  +36 44 38.09  21.4G 523798    568  C~28Fb      
2017 05  02.15252  08 47 21.75   +33 17 16.8   21.3R 523798    G37  C~2Faf      
2017 05  02.18393  08 47 21.78   +33 17 09.5         523798    G37  C~2Faf      
2017 11  20.56952  09 35 06.720  +22 14 26.12  21.7G 523798    F51  C~2jiQ      
2017 11  20.58270  09 35 06.671  +22 14 25.26  21.7G 523798    F51  C~2jiQ      
2017 11  20.59594  09 35 06.631  +22 14 24.14  21.7G 523798    F51  C~2jiQ      
2017 11  20.60921  09 35 06.581  +22 14 23.33  21.4G 523798    F51  C~2jiQ      
2017 12  20.50066  09 30 16.360  +21 43 45.19  21.3R 523798    G37  C~2Y57      
2017 12  20.52259  09 30 16.010  +21 43 44.28        523798    G37  C~2Y57      
2018 01  07.43177  09 24 37.912  +21 32 22.31  21.7G 523798    F51  C~2jiQ      
2018 01  07.44038  09 24 37.713  +21 32 21.82  21.6G 523798    F51  C~2jiQ      
2018 01  08.41975  09 24 16.387  +21 31 48.58  21.3G 523798    F51  C~2jiQ      
2018 01  11.61577  09 23 04.995  +21 30 01.35  21.3G 523798    F51  C~2jiQ      
2018 01  12.45884  09 22 45.829  +21 29 32.93  21.3G 523798    F51  C~2jiQ      
2018 01  14.55601  09 21 57.283  +21 28 23.01  21.3w 523798    F51  C~2Y57      
2018 01  14.56838  09 21 56.990  +21 28 22.47  21.1w 523798    F51  C~2Y57      
2018 01  14.58075  09 21 56.692  +21 28 22.05  21.2w 523798    F51  C~2Y57      
2018 01  14.59308  09 21 56.402  +21 28 21.68  21.2w 523798    F51  C~2Y57      
2018 01  15.41116  09 21 37.280  +21 27 54.26  21.3G 523798    F51  C~2jiQ      
2018 01  16.41009  09 21 13.673  +21 27 20.75  21.2G 523798    F51  C~2jiQ      
2018 01  22.56368  09 18 44.361  +21 23 49.47  21.1G 523798    F51  C~2jiQ      
2018 01  26.57431  09 17 04.301  +21 21 24.82  21.0G 523798    F51  C~2jiQ      
2018 02  03.34168  09 13 47.240  +21 16 18.95  21.0G 523798    F51  C~2jiQ      
2018 02  04.49218  09 13 17.821  +21 15 29.72  21.7G 523798    F51  C~2jiQ      
2018 02  04.49413  09 13 17.805  +21 15 29.84  21.6G 523798    F51  C~2jiQ      
2018 02  12.34797  09 09 58.321  +21 09 25.42  21.2w 523798    F51  C~2ZO5      
2018 02  12.36121  09 09 57.981  +21 09 24.78  21.2w 523798    F51  C~2ZO5      
2018 02  12.37449  09 09 57.647  +21 09 24.15  21.2w 523798    F51  C~2ZO5      
2018 02  12.38796  09 09 57.300  +21 09 23.48  21.3w 523798    F51  C~2ZO5      
2018 02  13.57313  09 09 27.469  +21 08 23.36  21.6G 523798    F51  C~2jiQ      

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     0.04
  2   0.0000      0.00     0.13       0.00     0.00
  3   0.0001      0.00     0.27       0.00     0.05
  4   0.0710      0.00     0.22       0.00     0.07
  5   0.0710      0.00    -0.13       0.00     0.12
  6   0.2075      0.00    -0.26       0.00     0.06
  7   0.2921      0.00     0.41       0.00    -0.20
  8   1.0512      0.00    -0.09       0.00     0.03
  9   1.0513      0.00     0.39       0.00     0.05
 10   1.0513      0.00    -0.19       0.00     0.09
 11   1.0513      0.00    -0.09       0.00    -0.10
 12   1.2013      0.00    -0.06       0.00    -0.11
 13   1.2014      0.00     0.40       0.00    -0.12
 14   1.2015      0.00    -0.32       0.00    -0.19
 15   1.2016      0.00     0.18       0.00    -0.03
 16   1.2722      0.00    -0.01       0.00     0.02
 17   1.2722      0.00    -0.08       0.00     0.16
 18   1.2722      0.00    -0.10       0.00    -0.24
 19   2.1432      0.00    -0.09       0.00     0.08
 20   2.1433      0.00     0.09       0.00     0.05
 21   2.1433      0.00    -0.10       0.00     0.16
 22   2.1433      0.00    -0.20       0.00     0.05
 23   2.1459      0.00     0.02       0.00    -0.05
 24   2.1459      0.00     0.04       0.00    -0.06
 25   2.1459      0.00     0.01       0.00    -0.05
 26   2.1598      0.00     0.07       0.00     0.20
 27   2.1598      0.00     0.16       0.00     0.28
 28   2.1975      0.00    -0.32       0.00     0.01
 29   2.1975      0.00     0.06       0.00    -0.31
 30   2.1975      0.00    -0.42       0.00     1.00
 31   2.1976      0.00     0.43       0.00    -0.31
 32   2.1976      0.00     0.38       0.00    -0.11
 33   2.1976      0.00     0.47       0.00     0.18
 34   2.1976      0.00     0.14       0.00    -0.00
 35   2.2002      0.00    -0.03       0.00    -0.03
 36   2.2002      0.00    -1.00       0.00    -0.50
 37   2.2003      0.00    -0.65       0.00    -0.29
 38   2.2003      0.00    -0.17       0.00     0.10
 39   2.2034      0.00     0.06       0.00    -0.05
 40   2.2034      0.00     0.05       0.00    -0.07
 41   2.2034      0.00     0.08       0.00    -0.09
 42   2.3889      0.00     0.26       0.00     0.14
 43   2.3890      0.00     0.14       0.00     0.20
 44   2.9431      0.00    -0.09       0.00    -0.22
 45   2.9431      0.00    -0.09       0.00    -0.01
 46   2.9432      0.00     0.05       0.00    -0.05
 47   2.9432      0.00     0.05       0.00     0.22
 48   3.0250      0.00     0.03       0.00     0.02
 49   3.0251      0.00     0.07       0.00     0.08
 50   3.0741      0.00     0.14       0.00     0.08
 51   3.0742      0.00    -0.01       0.00    -0.13
 52   3.0768      0.00    -0.02       0.00    -0.09
 53   3.0856      0.00    -0.04       0.00     0.14
 54   3.0879      0.00    -0.01       0.00    -0.13
 55   3.0936      0.00     0.07       0.00     0.05
 56   3.0937      0.00     0.08       0.00    -0.07
 57   3.0937      0.00     0.01       0.00    -0.07
 58   3.0937      0.00     0.04       0.00    -0.01
 59   3.0960      0.00    -0.01       0.00    -0.03
 60   3.0987      0.00    -0.00       0.00     0.00
 61   3.1156      0.00    -0.02       0.00    -0.17
 62   3.1266      0.00    -0.20       0.00    -0.06
 63   3.1478      0.00    -0.14       0.00     0.12
 64   3.1510      0.00    -0.19       0.00    -0.24
 65   3.1510      0.00     0.33       0.00    -0.04
 66   3.1725      0.00     0.02       0.00     0.01
 67   3.1725      0.00    -0.01       0.00     0.02
 68   3.1725      0.00     0.06       0.00     0.05
 69   3.1726      0.00     0.02       0.00     0.05
 70   3.1758      0.00     0.07       0.00     0.22

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.

523798    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        74.824    74.821    74.826
ecceobj         0.860     0.860     0.860
incobj         71.967    71.967    71.967
qmin            8.439     8.354     7.332
qmax          151.131   143.245   924.592
amean          64.762    64.243   214.192
amin           52.948    54.430    71.757
amax           79.815    75.974   466.770
emean           0.850     0.855     0.947
emin            0.806     0.817     0.853
emax            0.894     0.888     0.982
imean          73.208    72.293    71.162
imin           70.956    70.913    67.494
imax           74.609    74.360    75.203
excite_mean     1.280     1.280     1.339
fracstop        0.113     0.185     0.566
cjmean          0.903     0.929     0.667

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       141.5     124.7     135.4
kozaiamp         21.9      42.1      22.0