Orbit Fit and Astrometric record for 559177

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: 559177    
# Created Sat Dec  4 02:08:14 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     87 observations of     87
# Arc:   9.34y
# First observation: 2012/01/05
#  Last observation: 2021/05/09
# Chi-squared of fit:    75.27 DOF:    168 RMS:  0.16
# Min/Max residuals:    -0.53    1.07
# Exact a, adot, b, bdot, g, gdot:
  2.705523E-05  8.174623E-02 -6.785518E-07 -9.078059E-04  5.323657E-02 -1.726094E-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
  -15.635348  131.174287    0.440038   -0.236824   -0.846297  2455931.996966
# Heliocentric elements and errors
Epoch:              2455932.5000  =  2012/01/06
Mean Anomaly:          328.09154 +/-     0.000
Argument of Peri:      326.20033 +/-     0.000
Long of Asc Node:      222.99243 +/-     0.000
Inclination:            14.96280 +/-     0.000
Eccentricity:         0.31549294 +/-    0.0000
Semi-Major Axis:     25.32386477 +/-    0.0000
Time of Perihelion: 2460058.1909 +/-       0.0
Perihelion:          17.33436423 +/-    0.0000
Aphelion:            33.31336532 +/-    0.0000
Period (y)              127.4392 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -12.15342707 +/-    0.0000
Ecliptic Y           14.56798473 +/-    0.0000
Ecliptic Z           -5.06261145 +/-    0.0000
Ecliptic XDOT        -0.00259766 +/-    0.0000
Ecliptic YDOT        -0.00341605 +/-    0.0000
Ecliptic ZDOT         0.00019437 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   19.63583803 +/-    0.0000
Geocenter to KBO     18.78421000 +/-    0.0000
# Hcoef:  9.85

The following table shows the complete astrometric record for 559177. 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 (559177) followed by the observatory code and reference code for the source of the astrometry.

2012 01  05.49620  08 37 32.351  +02 21 11.10  22.5G 559177    F51  C~31Gd      
2012 01  24.35525  08 34 40.718  +02 27 36.68  23.0G 559177    F51  C~31Gd      
2012 01  24.35792  08 34 40.697  +02 27 36.81  22.7G 559177    F51  C~31Gd      
2012 01  24.36921  08 34 40.581  +02 27 36.86  23.4G 559177    F51  C~31Gd      
2012 01  24.37187  08 34 40.561  +02 27 36.81  22.1G 559177    F51  C~31Gd      
2012 01  24.38319  08 34 40.460  +02 27 37.54  22.6G 559177    F51  C~31Gd      
2012 01  24.38583  08 34 40.420  +02 27 37.46  22.5G 559177    F51  C~31Gd      
2012 01  24.39720  08 34 40.322  +02 27 37.89  23.0G 559177    F51  C~31Gd      
2012 01  24.39986  08 34 40.296  +02 27 37.93  22.0G 559177    F51  C~31Gd      
2012 11  30.62685  08 59 08.148  +01 11 15.62  22.9G 559177    F51  C~31Gd      
2013 01  18.48796  08 53 54.418  +01 06 29.77  22.4w 559177    F51  C~3jaM      
2013 01  18.50234  08 53 54.256  +01 06 30.14  22.5w 559177    F51  C~3jaM      
2013 01  18.51673  08 53 54.128  +01 06 30.64  22.5w 559177    F51  C~3jaM      
2013 01  18.53119  08 53 53.977  +01 06 31.14  22.6w 559177    F51  C~3jaM      
2014 01  09.56271  09 14 17.325  -00 18 31.45  23.0G 559177    F51  C~31Gd      
2014 01  11.48020  09 14 01.670  -00 18 07.39  22.5G 559177    F51  C~31Gd      
2014 01  31.46472  09 11 01.063  -00 09 18.97  23.3G 559177    F51  C~31Gd      
2014 02  20.39613  09 07 53.398  +00 06 26.93  22.3G 559177    F51  C~31Gd      
2014 02  28.36539  09 06 43.862  +00 14 06.23  22.7G 559177    F51  C~31Gd      
2014 03  24.29717  09 03 59.488  +00 39 00.39  22.9G 559177    F51  C~31Gd      
2014 04  24.25021  09 02 52.030  +01 08 04.31  22.8G 559177    F51  C~31Gd      
2014 12  16.59664  09 36 13.896  -01 39 52.22  23.5G 559177    F51  C~31Gd      
2015 01  19.49074  09 32 38.496  -01 41 04.87  22.2w 559177    F51  C~1vYA      
2015 01  19.50208  09 32 38.383  -01 41 04.70  22.4w 559177    F51  C~1vYA      
2015 01  19.51357  09 32 38.289  -01 41 04.48  22.5w 559177    F51  C~1vYA      
2015 01  21.50211  09 32 21.048  -01 40 18.66  22.4w 559177    F51  C~1vYA      
2015 01  21.51567  09 32 20.935  -01 40 18.29  22.6w 559177    F51  C~1vYA      
2015 01  21.52912  09 32 20.808  -01 40 17.98  22.6w 559177    F51  C~1vYA      
2015 01  21.54255  09 32 20.677  -01 40 17.44  22.5w 559177    F51  C~1vYA      
2015 02  27.37880  09 26 37.281  -01 12 34.59  22.4G 559177    F51  C~31Gd      
2015 03  18.35064  09 24 06.439  -00 52 03.89  22.3w 559177    F51  C~1vYA      
2015 03  18.36357  09 24 06.341  -00 52 03.10  22.4w 559177    F51  C~1vYA      
2015 03  18.37655  09 24 06.242  -00 52 02.23  22.2w 559177    F51  C~1vYA      
2015 03  18.38947  09 24 06.166  -00 52 01.34  22.5w 559177    F51  C~1vYA      
2015 10  22.64586  09 53 18.128  -02 07 45.07  21.4G 559177    F51  C~31Gd      
2015 10  23.65105  09 53 26.500  -02 09 09.62  21.2G 559177    F51  C~31Gd      
2015 10  25.65321  09 53 42.651  -02 11 56.76  21.3G 559177    F51  C~31Gd      
2015 12  05.60620  09 56 24.590  -02 57 50.11  23.4G 559177    F51  C~31Gd      
2015 12  06.56137  09 56 24.296  -02 58 33.88  22.5G 559177    F51  C~31Gd      
2015 12  08.60082  09 56 22.944  -03 00 03.10  22.4G 559177    F51  C~31Gd      
2015 12  08.61341  09 56 22.927  -03 00 03.61  22.5G 559177    F51  C~31Gd      
2015 12  08.62598  09 56 22.913  -03 00 04.07  22.2G 559177    F51  C~31Gd      
2015 12  08.63858  09 56 22.897  -03 00 04.65  22.4G 559177    F51  C~31Gd      
2015 12  13.57769  09 56 16.071  -03 03 17.71  22.3G 559177    F51  C~31Gd      
2015 12  13.59045  09 56 16.027  -03 03 18.00  22.7G 559177    F51  C~31Gd      
2015 12  13.60322  09 56 16.009  -03 03 18.66  22.8G 559177    F51  C~31Gd      
2015 12  13.61603  09 56 15.973  -03 03 18.84  22.0G 559177    F51  C~31Gd      
2015 12  24.54604  09 55 43.361  -03 08 25.30  22.0G 559177    F51  C~31Gd      
2016 01  11.52390  09 54 02.666  -03 10 27.66  22.7G 559177    F51  C~31Gd      
2016 01  11.53590  09 54 02.576  -03 10 27.36  23.0G 559177    F51  C~31Gd      
2016 01  11.54788  09 54 02.470  -03 10 27.40  22.8G 559177    F51  C~31Gd      
2016 01  11.55988  09 54 02.416  -03 10 27.36  23.0G 559177    F51  C~31Gd      
2016 01  12.48617  09 53 55.850  -03 10 20.72  22.7G 559177    F51  C~31Gd      
2016 01  12.49741  09 53 55.773  -03 10 20.52  22.2G 559177    F51  C~31Gd      
2016 01  12.50861  09 53 55.681  -03 10 20.29  22.6G 559177    F51  C~31Gd      
2016 01  12.51987  09 53 55.590  -03 10 20.34  22.3G 559177    F51  C~31Gd      
2016 01  21.49996  09 52 46.113  -03 08 06.47  22.7G 559177    F51  C~31Gd      
2016 01  21.51047  09 52 46.016  -03 08 06.98  22.3G 559177    F51  C~31Gd      
2016 01  31.44327  09 51 19.510  -03 03 27.99  22.8G 559177    F51  C~31Gd      
2016 01  31.45395  09 51 19.390  -03 03 27.53  23.3G 559177    F51  C~31Gd      
2016 01  31.46465  09 51 19.300  -03 03 27.26  22.6G 559177    F51  C~31Gd      
2016 03  04.34765  09 46 11.074  -02 34 42.80  22.5G 559177    F51  C~31Gd      
2016 03  04.36119  09 46 10.955  -02 34 42.02  22.4G 559177    F51  C~31Gd      
2016 03  04.37469  09 46 10.832  -02 34 41.00  22.3G 559177    F51  C~31Gd      
2016 03  04.38825  09 46 10.700  -02 34 40.11  23.0G 559177    F51  C~31Gd      
2016 03  31.31041  09 42 53.470  -02 03 32.75  22.3G 559177    F51  C~31Gd      
2016 03  31.32122  09 42 53.406  -02 03 31.91  22.7G 559177    F51  C~31Gd      
2016 03  31.33165  09 42 53.343  -02 03 31.00  22.4G 559177    F51  C~31Gd      
2016 03  31.34205  09 42 53.295  -02 03 30.55  22.4G 559177    F51  C~31Gd      
2017 01  04.52762  10 15 31.268  -04 38 29.34  22.1G 559177    F51  C~31Gd      
2017 01  04.54005  10 15 31.212  -04 38 29.63  23.0G 559177    F51  C~31Gd      
2017 01  04.55245  10 15 31.160  -04 38 29.38  22.7G 559177    F51  C~31Gd      
2017 01  04.56485  10 15 31.089  -04 38 29.73  22.6G 559177    F51  C~31Gd      
2017 01  29.54285  10 12 34.510  -04 33 34.33  22.5G 559177    F51  C~31Gd      
2017 01  29.55594  10 12 34.377  -04 33 34.05  22.1G 559177    F51  C~31Gd      
2017 01  29.58215  10 12 34.146  -04 33 33.30  22.7G 559177    F51  C~31Gd      
2017 03  18.38752  10 05 17.118  -03 48 34.00  21.8G 559177    F51  C~31Gd      
2017 03  18.40073  10 05 17.002  -03 48 33.11  21.8G 559177    F51  C~31Gd      
2017 03  18.41393  10 05 16.899  -03 48 32.17  22.5G 559177    F51  C~31Gd      
2017 03  18.42716  10 05 16.787  -03 48 31.10  22.4G 559177    F51  C~31Gd      
2017 05  10.29180  10 01 58.297  -02 50 41.95  22.5G 559177    F51  C~31Gd      
2020 12  22.60687  11 43 23.960  -10 07 40.99  22.4w 559177    F51  C~4NvK      
2020 12  22.61914  11 43 23.968  -10 07 41.52  22.6w 559177    F51  C~4NvK      
2020 12  22.63140  11 43 24.022  -10 07 42.06  22.2w 559177    F51  C~4NvK      
2021 05  09.282969 11 29 27.795  -08 35 50.56  22.2w 559177    F51  C~4n7q      
2021 05  09.307528 11 29 27.712  -08 35 49.14  21.9w 559177    F51  C~4n7q      
2021 05  09.319829 11 29 27.661  -08 35 48.29  22.1w 559177    F51  C~4n7q      

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    -0.53       0.00     0.23
     2   0.0516      0.00    -0.03       0.00    -0.02
     3   0.0516      0.00     0.04       0.00     0.03
     4   0.0517      0.00    -0.06       0.00    -0.26
     5   0.0517      0.00     0.02       0.00    -0.40
     6   0.0517      0.00     0.15       0.00    -0.01
     7   0.0517      0.00    -0.07       0.00    -0.17
     8   0.0517      0.00     0.11       0.00    -0.09
     9   0.0518      0.00     0.10       0.00    -0.13
    10   0.9038      0.00     0.08       0.00    -0.04
    11   1.0376      0.00     0.32       0.00     0.02
    12   1.0377      0.00    -0.08       0.00     0.03
    13   1.0377      0.00     0.02       0.00     0.18
    14   1.0377      0.00    -0.21       0.00     0.32
    15   2.0125      0.00    -0.05       0.00     0.15
    16   2.0178      0.00     0.18       0.00    -0.02
    17   2.0725      0.00    -0.16       0.00     0.15
    18   2.1270      0.00     0.03       0.00    -0.14
    19   2.1489      0.00    -0.04       0.00    -0.32
    20   2.2144      0.00    -0.42       0.00     0.16
    21   2.2991      0.00    -0.05       0.00     0.20
    22   2.9462      0.00     0.11       0.00    -0.26
    23   3.0390      0.00     0.07       0.00     0.20
    24   3.0390      0.00    -0.13       0.00     0.12
    25   3.0391      0.00    -0.03       0.00     0.09
    26   3.0445      0.00    -0.00       0.00    -0.04
    27   3.0445      0.00     0.12       0.00    -0.00
    28   3.0446      0.00     0.03       0.00    -0.02
    29   3.0446      0.00    -0.14       0.00     0.19
    30   3.1455      0.00     0.02       0.00     0.11
    31   3.1974      0.00     0.25       0.00    -0.10
    32   3.1974      0.00     0.13       0.00    -0.18
    33   3.1975      0.00     0.01       0.00    -0.18
    34   3.1975      0.00     0.22       0.00    -0.16
    35   3.7951      0.00     0.17       0.00     0.05
    36   3.7978      0.00     0.20       0.00     0.02
    37   3.8033      0.00     0.05       0.00    -0.15
    38   3.9154      0.00    -0.09       0.00     0.15
    39   3.9180      0.00     0.26       0.00    -0.02
    40   3.9236      0.00     0.08       0.00    -0.05
    41   3.9237      0.00     0.03       0.00    -0.03
    42   3.9237      0.00     0.02       0.00     0.05
    43   3.9237      0.00    -0.02       0.00     0.00
    44   3.9373      0.00     0.09       0.00    -0.04
    45   3.9373      0.00    -0.17       0.00     0.12
    46   3.9373      0.00    -0.04       0.00    -0.08
    47   3.9374      0.00    -0.18       0.00     0.20
    48   3.9673      0.00     0.10       0.00    -0.14
    49   4.0165      0.00     0.04       0.00    -0.08
    50   4.0165      0.00    -0.00       0.00     0.14
    51   4.0166      0.00    -0.30       0.00     0.02
    52   4.0166      0.00     0.20       0.00    -0.02
    53   4.0191      0.00     0.15       0.00    -0.26
    54   4.0192      0.00     0.24       0.00    -0.15
    55   4.0192      0.00     0.09       0.00    -0.01
    56   4.0192      0.00    -0.03       0.00    -0.15
    57   4.0438      0.00    -0.00       0.00     1.07
    58   4.0438      0.00    -0.12       0.00     0.34
    59   4.0710      0.00     0.02       0.00     0.05
    60   4.0711      0.00    -0.29       0.00     0.14
    61   4.0711      0.00    -0.15       0.00     0.04
    62   4.1611      0.00    -0.01       0.00    -0.02
    63   4.1612      0.00     0.04       0.00    -0.13
    64   4.1612      0.00     0.03       0.00    -0.00
    65   4.1612      0.00    -0.11       0.00    -0.00
    66   4.2349      0.00     0.01       0.00    -0.12
    67   4.2350      0.00    -0.04       0.00    -0.03
    68   4.2350      0.00    -0.11       0.00     0.16
    69   4.2350      0.00     0.05       0.00    -0.11
    70   4.9994      0.00    -0.35       0.00     0.04
    71   4.9994      0.00    -0.18       0.00    -0.15
    72   4.9995      0.00     0.04       0.00     0.19
    73   4.9995      0.00    -0.02       0.00    -0.07
    74   5.0679      0.00     0.10       0.00     0.07
    75   5.0679      0.00    -0.17       0.00    -0.04
    76   5.0680      0.00    -0.17       0.00    -0.10
    77   5.1989      0.00     0.06       0.00    -0.01
    78   5.1989      0.00    -0.05       0.00    -0.09
    79   5.1990      0.00     0.03       0.00    -0.11
    80   5.1990      0.00    -0.03       0.00    -0.00
    81   5.3437      0.00     0.02       0.00     0.04
    82   8.9640      0.00     0.04       0.00    -0.14
    83   8.9641      0.00    -0.25       0.00    -0.09
    84   8.9641      0.00     0.16       0.00    -0.05
    85   9.3410      0.00     0.00       0.00     0.17
    86   9.3410      0.00     0.11       0.00    -0.07
    87   9.3411      0.00     0.02       0.00    -0.06

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.

559177    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        25.377    25.377    25.378
ecceobj         0.314     0.314     0.314
incobj         14.937    14.937    14.937
qmin           17.413    17.413    17.413
qmax           33.446    33.446    33.446
amean          25.414    25.414    25.414
amin           25.377    25.377    25.378
amax           25.466    25.466    25.465
emean           0.313     0.313     0.313
emin            0.313     0.313     0.313
emax            0.314     0.314     0.314
imean          15.737    15.737    15.737
imin           15.676    15.676    15.676
imax           15.789    15.789    15.789
excite_mean     0.414     0.414     0.414
fracstop        0.000     0.000     0.000
cjmean          2.869     2.869     2.869

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       326.1     326.1     326.1
kozaiamp          0.7       0.7       0.7