Orbit Fit and Astrometric record for 535169

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: 535169    
# Created Tue Nov 30 02:08:05 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     90 observations of     90
# Arc:   8.92y
# First observation: 2012/01/20
#  Last observation: 2020/12/22
# Chi-squared of fit:    72.30 DOF:    174 RMS:  0.16
# Min/Max residuals:    -0.96    0.64
# Exact a, adot, b, bdot, g, gdot:
  2.176235E-05  4.258378E-02  5.741785E-06  1.057061E-02  3.153951E-02 -2.720852E-03
# 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
  -14.605679  158.121731    0.609668   -0.194866   -0.747890  2455946.997276
# Heliocentric elements and errors
Epoch:              2455946.5000  =  2012/01/20
Mean Anomaly:          357.60303 +/-     0.000
Argument of Peri:      324.90169 +/-     0.000
Long of Asc Node:      202.22761 +/-     0.000
Inclination:            19.70000 +/-     0.000
Eccentricity:         0.59855025 +/-    0.0000
Semi-Major Axis:     80.20745804 +/-    0.0000
Time of Perihelion: 2457693.4535 +/-       0.0
Perihelion:          32.19926421 +/-    0.0000
Aphelion:           128.21565188 +/-    0.0000
Period (y)              718.3405 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.95903680 +/-    0.0000
Ecliptic Y           12.28763290 +/-    0.0000
Ecliptic Z           -7.99506204 +/-    0.0000
Ecliptic XDOT        -0.00138454 +/-    0.0000
Ecliptic YDOT        -0.00342480 +/-    0.0000
Ecliptic ZDOT         0.00094760 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.45822300 +/-    0.0000
Geocenter to KBO     31.70633201 +/-    0.0000
# Hcoef:  7.28

The following table shows the complete astrometric record for 535169. 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 (535169) followed by the observatory code and reference code for the source of the astrometry.

2012 01  20.49651  10 17 24.801  -05 02 38.48  22.6G 535169    F51  C~2r7Z      
2012 02  24.52947  10 14 25.584  -04 47 28.57  22.6G 535169    F51  C~2r7Z      
2012 02  28.37554  10 14 04.685  -04 45 02.30  22.8G 535169    F51  C~2r7Z      
2012 02  28.38822  10 14 04.614  -04 45 01.85  22.3G 535169    F51  C~2r7Z      
2012 03  21.30051  10 12 13.871  -04 29 28.23  22.4w 535169    F51  C~2dZ2      
2012 03  21.31443  10 12 13.795  -04 29 27.48  22.3w 535169    F51  C~2dZ2      
2012 03  21.32834  10 12 13.716  -04 29 27.11  22.1w 535169    F51  C~2dZ2      
2012 03  21.34226  10 12 13.657  -04 29 26.31  22.2w 535169    F51  C~2dZ2      
2012 04  22.24586  10 10 29.900  -04 05 59.66  21.5G 535169    F51  C~2r7Z      
2014 01  25.50547  10 37 09.911  -05 41 21.37  23.2G 535169    F51  C~2r7Z      
2014 12  01.58849  10 48 36.054  -05 53 26.62  22.4w 535169    F51  C~1vXx      
2014 12  01.61482  10 48 36.080  -05 53 27.41  22.6w 535169    F51  C~1vXx      
2014 12  01.63967  10 48 36.138  -05 53 28.22  22.6w 535169    F51  C~1vXx      
2014 12  08.65175  10 48 45.448  -05 56 38.79  22.3G 535169    F51  C~2r7Z      
2015 02  20.42742  10 45 15.224  -05 49 56.17  22.3w 535169    F51  C~1vXx      
2015 02  20.44040  10 45 15.184  -05 49 55.64  22.1w 535169    F51  C~1vXx      
2015 02  20.45308  10 45 15.107  -05 49 55.35  22.3w 535169    F51  C~1vXx      
2015 02  20.46578  10 45 15.013  -05 49 54.77  22.3w 535169    F51  C~1vXx      
2015 02  22.40380  10 45 04.606  -05 48 48.04  23.5G 535169    F51  C~2r7Z      
2015 03  20.35264  10 42 46.716  -05 31 09.78  22.3w 535169    F51  C~1vXx      
2015 03  20.36532  10 42 46.647  -05 31 09.53  22.1w 535169    F51  C~1vXx      
2015 03  20.37800  10 42 46.611  -05 31 08.63  22.2w 535169    F51  C~1vXx      
2015 03  20.42538  10 42 46.356  -05 31 06.39  22.4w 535169    F51  C~1vXx      
2015 03  21.38678  10 42 41.573  -05 30 23.30  22.1w 535169    F51  C~1vXx      
2015 03  21.39940  10 42 41.513  -05 30 22.68  22.5w 535169    F51  C~1vXx      
2015 03  21.41193  10 42 41.444  -05 30 22.18  22.0w 535169    F51  C~1vXx      
2015 03  21.42458  10 42 41.383  -05 30 21.56  22.2w 535169    F51  C~1vXx      
2015 12  13.58910  10 58 47.495  -06 16 42.17  22.6G 535169    F51  C~2r7Z      
2015 12  13.60186  10 58 47.502  -06 16 42.54  22.4G 535169    F51  C~2r7Z      
2015 12  13.61463  10 58 47.513  -06 16 42.66  22.6G 535169    F51  C~2r7Z      
2015 12  13.62744  10 58 47.524  -06 16 43.14  22.1G 535169    F51  C~2r7Z      
2015 12  13.63024  10 58 47.526  -06 16 43.11  22.4G 535169    F51  C~2r7Z      
2015 12  13.63540  10 58 47.524  -06 16 43.18  22.3G 535169    F51  C~2r7Z      
2015 12  13.64055  10 58 47.525  -06 16 43.30  22.4G 535169    F51  C~2r7Z      
2015 12  13.64571  10 58 47.536  -06 16 43.42  22.6G 535169    F51  C~2r7Z      
2016 01  11.57426  10 58 18.388  -06 21 30.15  22.2G 535169    F51  C~2r7Z      
2016 01  11.58764  10 58 18.342  -06 21 30.05  22.2G 535169    F51  C~2r7Z      
2016 01  11.60103  10 58 18.300  -06 21 29.97  22.4G 535169    F51  C~2r7Z      
2016 01  11.61440  10 58 18.266  -06 21 29.96  22.3G 535169    F51  C~2r7Z      
2016 01  17.52763  10 58 01.185  -06 21 00.35  22.4G 535169    F51  C~2r7Z      
2016 01  17.54095  10 58 01.136  -06 21 00.19  22.4G 535169    F51  C~2r7Z      
2016 01  17.55426  10 58 01.089  -06 21 00.06  22.4G 535169    F51  C~2r7Z      
2016 01  17.56760  10 58 01.043  -06 21 00.09  22.3G 535169    F51  C~2r7Z      
2016 01  18.50564  10 57 58.044  -06 20 52.60  22.5G 535169    F51  C~2r7Z      
2016 01  18.51766  10 57 57.999  -06 20 52.56  22.5G 535169    F51  C~2r7Z      
2016 01  18.52971  10 57 57.943  -06 20 52.39  22.2G 535169    F51  C~2r7Z      
2016 01  18.54173  10 57 57.916  -06 20 52.30  22.4G 535169    F51  C~2r7Z      
2016 02  10.47572  10 56 22.557  -06 14 04.37  21.6G 535169    F51  C~2r7Z      
2016 02  10.50901  10 56 22.380  -06 14 03.66  22.2G 535169    F51  C~2r7Z      
2016 03  06.38317  10 54 11.513  -05 59 49.01  22.3G 535169    F51  C~2r7Z      
2016 03  06.40827  10 54 11.377  -05 59 48.10  22.1G 535169    F51  C~2r7Z      
2016 03  06.42086  10 54 11.300  -05 59 47.64  22.2G 535169    F51  C~2r7Z      
2016 03  13.38836  10 53 34.028  -05 54 54.43  22.1G 535169    F51  C~2r7Z      
2016 03  13.39949  10 53 33.961  -05 54 53.93  22.3G 535169    F51  C~2r7Z      
2016 03  13.41061  10 53 33.903  -05 54 53.46  21.9G 535169    F51  C~2r7Z      
2016 03  13.42182  10 53 33.833  -05 54 53.00  21.9G 535169    F51  C~2r7Z      
2016 03  14.36335  10 53 28.884  -05 54 12.62  21.3G 535169    F51  C~2r7Z      
2016 03  30.36217  10 52 09.607  -05 42 11.59  21.9G 535169    F51  C~2r7a      
2016 03  30.36474  10 52 09.609  -05 42 11.36  22.0G 535169    F51  C~2r7a      
2016 03  30.37458  10 52 09.551  -05 42 11.14  21.9G 535169    F51  C~2r7a      
2016 03  30.37715  10 52 09.526  -05 42 11.13  22.7G 535169    F51  C~2r7a      
2016 03  30.38696  10 52 09.496  -05 42 10.76  21.9G 535169    F51  C~2r7a      
2016 03  30.38954  10 52 09.492  -05 42 10.46  22.4G 535169    F51  C~2r7a      
2016 03  30.39938  10 52 09.422  -05 42 10.11  22.0G 535169    F51  C~2r7a      
2016 03  30.40197  10 52 09.420  -05 42 09.73  22.1G 535169    F51  C~2r7a      
2017 01  29.55121  11 07 26.852  -06 36 23.43  21.6G 535169    F51  C~2r7a      
2017 01  29.56433  11 07 26.788  -06 36 23.38  22.2G 535169    F51  C~2r7a      
2017 01  29.57743  11 07 26.740  -06 36 23.03  21.9G 535169    F51  C~2r7a      
2017 02  22.44486  11 05 33.850  -06 25 55.20  22.0G 535169    F51  C~2r7a      
2017 02  22.45828  11 05 33.784  -06 25 54.70  22.3G 535169    F51  C~2r7a      
2017 02  22.47172  11 05 33.708  -06 25 54.25  22.2G 535169    F51  C~2r7a      
2017 02  25.48591  11 05 17.767  -06 24 08.25  22.2G 535169    F51  C~2r7a      
2017 03  18.39802  11 03 25.912  -06 09 59.54  22.5G 535169    F51  C~2r7a      
2017 03  18.41122  11 03 25.850  -06 09 58.75  22.4G 535169    F51  C~2r7a      
2017 03  18.42445  11 03 25.774  -06 09 58.04  22.8G 535169    F51  C~2r7a      
2017 03  18.43767  11 03 25.706  -06 09 57.63  22.3G 535169    F51  C~2r7a      
2017 03  29.34016  11 02 31.033  -06 01 45.42  22.0G 535169    F51  C~2r7a      
2017 03  29.35267  11 02 30.975  -06 01 45.13  22.0G 535169    F51  C~2r7a      
2017 03  29.36514  11 02 30.921  -06 01 44.30  22.1G 535169    F51  C~2r7a      
2017 03  29.37768  11 02 30.850  -06 01 43.75  22.3G 535169    F51  C~2r7a      
2017 04  01.36560  11 02 16.828  -05 59 26.49  22.4G 535169    F51  C~2r7a      
2017 04  01.37690  11 02 16.767  -05 59 26.01  22.7G 535169    F51  C~2r7a      
2017 04  01.38821  11 02 16.720  -05 59 25.49  22.4G 535169    F51  C~2r7a      
2017 04  01.39954  11 02 16.673  -05 59 25.24  22.4G 535169    F51  C~2r7a      
2018 01  12.61282  11 18 31.656  -06 56 30.62  21.9G 535169    F51  C~2r7a      
2018 04  10.16567  11 11 54.146  -06 10 49.39  22.0R 535169    G37  C~2dZ2      
2018 04  10.21124  11 11 54.015  -06 10 47.56        535169    G37  C~2dZ2      
2020 12  22.60751  11 48 45.928  -07 39 56.98  22.5w 535169    F51  C~4Tui      
2020 12  22.61979  11 48 45.954  -07 39 57.40  22.6w 535169    F51  C~4Tui      
2020 12  22.63205  11 48 45.948  -07 39 57.59  22.4w 535169    F51  C~4Tui      

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    -0.11       0.00    -0.05
     2   0.0959      0.00     0.11       0.00    -0.04
     3   0.1064      0.00     0.18       0.00    -0.12
     4   0.1065      0.00     0.16       0.00    -0.17
     5   0.1665      0.00     0.35       0.00     0.15
     6   0.1665      0.00     0.18       0.00     0.28
     7   0.1665      0.00    -0.04       0.00     0.02
     8   0.1666      0.00     0.05       0.00     0.19
     9   0.2539      0.00    -0.96       0.00     0.16
    10   2.0151      0.00     0.03       0.00    -0.12
    11   2.8640      0.00     0.21       0.00     0.01
    12   2.8641      0.00    -0.06       0.00     0.00
    13   2.8642      0.00     0.20       0.00    -0.07
    14   2.8834      0.00     0.06       0.00     0.04
    15   3.0854      0.00    -0.18       0.00     0.04
    16   3.0854      0.00     0.28       0.00     0.13
    17   3.0854      0.00     0.17       0.00    -0.01
    18   3.0855      0.00    -0.20       0.00     0.14
    19   3.0908      0.00    -0.43       0.00     0.03
    20   3.1618      0.00    -0.06       0.00     0.01
    21   3.1619      0.00    -0.12       0.00    -0.31
    22   3.1619      0.00     0.31       0.00     0.02
    23   3.1620      0.00     0.11       0.00     0.13
    24   3.1647      0.00     0.06       0.00    -0.04
    25   3.1647      0.00     0.12       0.00     0.01
    26   3.1647      0.00     0.04       0.00    -0.05
    27   3.1648      0.00     0.08       0.00    -0.00
    28   3.8962      0.00    -0.09       0.00     0.02
    29   3.8963      0.00    -0.09       0.00    -0.07
    30   3.8963      0.00    -0.04       0.00     0.08
    31   3.8963      0.00     0.02       0.00    -0.12
    32   3.8963      0.00     0.03       0.00    -0.03
    33   3.8963      0.00    -0.05       0.00     0.02
    34   3.8964      0.00    -0.08       0.00     0.01
    35   3.8964      0.00     0.05       0.00     0.00
    36   3.9756      0.00     0.14       0.00    -0.14
    37   3.9756      0.00    -0.00       0.00    -0.07
    38   3.9756      0.00    -0.09       0.00    -0.03
    39   3.9757      0.00    -0.06       0.00    -0.05
    40   3.9919      0.00     0.08       0.00     0.07
    41   3.9919      0.00    -0.00       0.00     0.13
    42   3.9919      0.00    -0.05       0.00     0.16
    43   3.9920      0.00    -0.09       0.00     0.03
    44   3.9945      0.00     0.12       0.00     0.04
    45   3.9946      0.00     0.06       0.00    -0.02
    46   3.9946      0.00    -0.17       0.00     0.05
    47   3.9946      0.00     0.03       0.00     0.04
    48   4.0574      0.00    -0.06       0.00     0.14
    49   4.0575      0.00    -0.21       0.00    -0.03
    50   4.1256      0.00    -0.10       0.00     0.06
    51   4.1257      0.00    -0.07       0.00    -0.05
    52   4.1257      0.00    -0.18       0.00    -0.10
    53   4.1448      0.00     0.07       0.00     0.04
    54   4.1448      0.00    -0.04       0.00     0.06
    55   4.1449      0.00    -0.01       0.00     0.05
    56   4.1449      0.00    -0.15       0.00     0.03
    57   4.1475      0.00    -0.03       0.00    -0.42
    58   4.1913      0.00     0.06       0.00     0.16
    59   4.1913      0.00     0.27       0.00     0.27
    60   4.1913      0.00     0.09       0.00     0.04
    61   4.1913      0.00    -0.11       0.00    -0.07
    62   4.1913      0.00     0.13       0.00    -0.15
    63   4.1914      0.00     0.25       0.00     0.03
    64   4.1914      0.00    -0.11       0.00    -0.07
    65   4.1914      0.00     0.04       0.00     0.19
    66   5.0268      0.00    -0.10       0.00     0.04
    67   5.0269      0.00    -0.24       0.00    -0.14
    68   5.0269      0.00    -0.15       0.00    -0.02
    69   5.0923      0.00    -0.05       0.00    -0.10
    70   5.0923      0.00     0.03       0.00    -0.06
    71   5.0923      0.00    -0.02       0.00    -0.07
    72   5.1006      0.00    -0.01       0.00     0.04
    73   5.1578      0.00    -0.13       0.00    -0.21
    74   5.1579      0.00    -0.01       0.00    -0.00
    75   5.1579      0.00    -0.09       0.00     0.12
    76   5.1579      0.00    -0.06       0.00    -0.05
    77   5.1878      0.00    -0.05       0.00    -0.01
    78   5.1878      0.00     0.00       0.00    -0.29
    79   5.1879      0.00     0.10       0.00    -0.03
    80   5.1879      0.00    -0.04       0.00    -0.05
    81   5.1961      0.00    -0.06       0.00     0.14
    82   5.1961      0.00    -0.17       0.00     0.11
    83   5.1961      0.00    -0.08       0.00     0.11
    84   5.1962      0.00     0.02       0.00    -0.16
    85   5.9798      0.00     0.08       0.00    -0.01
    86   6.2195      0.00    -0.35       0.00    -0.13
    87   6.2196      0.00     0.64       0.00    -0.37
    88   8.9230      0.00     0.01       0.00     0.38
    89   8.9230      0.00     0.21       0.00     0.16
    90   8.9230      0.00    -0.06       0.00     0.17

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.

535169    quality flag:2

Type:       CENTAURS  CENTAURS  CENTAURR

axisobj        80.202    80.201    80.203
ecceobj         0.598     0.598     0.598
incobj         19.692    19.692    19.692
qmin           29.955    30.060    29.046
qmax          151.083   142.062   133.511
amean          86.483    78.871    77.285
amin           78.728    70.493    66.779
amax           91.016    87.378    82.324
emean           0.638     0.597     0.598
emin            0.588     0.545     0.540
emax            0.661     0.627     0.626
imean          17.314    18.969    17.532
imin           15.904    16.733    14.229
imax           20.034    20.828    20.034
excite_mean     0.704     0.680     0.670
fracstop        1.000     1.000     0.781
cjmean          2.837     2.835     2.836

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       177.9     174.6     197.3
kozaiamp        180.0     179.9     180.0