Orbit Fit and Astrometric record for 523787

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: 523787    
# Created Fri Feb 22 02:07:19 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   69 observations of   69
# Arc:   4.20y
# First observation: 2014/01/26
#  Last observation: 2018/04/10
# Chi-squared of fit:    36.06 DOF:  132 RMS:  0.13
# Min/Max residuals:    -0.52    0.43
# Exact a, adot, b, bdot, g, gdot:
  2.249303E-05  5.843026E-02  1.011373E-05  2.625524E-02  4.205318E-02  1.958025E-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
  -19.096962  174.575657    0.732773   -0.213885   -0.618110  2456684.048938
# Heliocentric elements and errors
Epoch:              2456684.5000  =  2014/01/27
Mean Anomaly:            8.46347 +/-     0.000
Argument of Peri:      277.80643 +/-     0.000
Long of Asc Node:      209.29183 +/-     0.000
Inclination:            29.45757 +/-     0.000
Eccentricity:         0.61390105 +/-    0.0000
Semi-Major Axis:     57.10328212 +/-    0.0000
Time of Perihelion: 2452979.0924 +/-       0.0
Perihelion:          22.04751752 +/-    0.0000
Aphelion:            92.15904673 +/-    0.0000
Period (y)              431.5189 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.95325810 +/-    0.0000
Ecliptic Y            2.91719983 +/-    0.0000
Ecliptic Z           -7.77964632 +/-    0.0000
Ecliptic XDOT        -0.00212151 +/-    0.0000
Ecliptic YDOT        -0.00362292 +/-    0.0000
Ecliptic ZDOT         0.00119834 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   24.41059488 +/-    0.0000
Geocenter to KBO     23.77926467 +/-    0.0000
# Hcoef:  7.78

The following table shows the complete astrometric record for 523787. 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 (523787) followed by the observatory code and reference code for the source of the astrometry.

2014 01  26.54816  11 09 10.695  -15 20 43.51  21.9G 523787    F51  C~2kRY      
2014 02  13.55456  11 07 27.250  -15 14 57.94  21.2G 523787    F51  C~2kRY      
2014 02  21.48797  11 06 34.138  -15 10 14.68  21.4i 523787    F51  C~2dZl      
2014 02  21.50021  11 06 34.079  -15 10 14.60  21.2i 523787    F51  C~2dZl      
2014 02  21.51244  11 06 33.974  -15 10 14.39  21.2i 523787    F51  C~2dZl      
2014 12  18.60666  11 25 11.215  -15 07 10.21  22.1G 523787    F51  C~2kRZ      
2015 02  23.46403  11 21 30.382  -15 08 23.67  21.7w 523787    F51  C~1vYK      
2015 02  23.47553  11 21 30.301  -15 08 23.18  21.5w 523787    F51  C~1vYK      
2015 02  23.48703  11 21 30.231  -15 08 22.75  21.6w 523787    F51  C~1vYK      
2015 02  23.49853  11 21 30.150  -15 08 22.28  21.5w 523787    F51  C~1vYK      
2015 04  10.34692  11 16 25.553  -14 23 03.58  21.8w 523787    F51  C~1vYK      
2015 04  10.35754  11 16 25.498  -14 23 02.79  21.6w 523787    F51  C~1vYK      
2015 04  10.36817  11 16 25.431  -14 23 02.05  21.8w 523787    F51  C~1vYK      
2015 04  10.37882  11 16 25.384  -14 23 01.23  22.2w 523787    F51  C~1vYK      
2015 04  16.30100  11 15 54.074  -14 15 56.72  21.6w 523787    F51  C~1vYK      
2015 04  16.31185  11 15 54.017  -14 15 55.98  21.5w 523787    F51  C~1vYK      
2015 04  16.32270  11 15 53.962  -14 15 54.97  21.7w 523787    F51  C~1vYK      
2015 04  16.33358  11 15 53.911  -14 15 54.35  21.6w 523787    F51  C~1vYK      
2015 04  18.30133  11 15 44.287  -14 13 32.63  21.7w 523787    F51  C~1vYK      
2015 04  18.31196  11 15 44.232  -14 13 32.06  21.8w 523787    F51  C~1vYK      
2015 04  18.32260  11 15 44.174  -14 13 31.43  22.0w 523787    F51  C~1vYK      
2015 04  18.33321  11 15 44.124  -14 13 30.39  21.7w 523787    F51  C~1vYK      
2015 05  17.26828  11 14 16.977  -13 40 26.95  21.7w 523787    F51  C~1vYK      
2015 05  17.27989  11 14 16.948  -13 40 26.37  21.7w 523787    F51  C~1vYK      
2015 05  17.29148  11 14 16.929  -13 40 25.51  21.7w 523787    F51  C~1vYK      
2015 05  17.30310  11 14 16.913  -13 40 24.88  21.7w 523787    F51  C~1vYK      
2015 05  18.29168  11 14 15.951  -13 39 23.51  21.7G 523787    F51  C~2kRZ      
2016 03  01.43869  11 35 19.682  -14 59 49.27  21.1G 523787    F51  C~2kRZ      
2016 03  01.44941  11 35 19.604  -14 59 48.60  21.6G 523787    F51  C~2kRZ      
2016 03  01.45979  11 35 19.530  -14 59 48.17  21.1G 523787    F51  C~2kRZ      
2016 03  01.47020  11 35 19.471  -14 59 47.81  21.2G 523787    F51  C~2kRZ      
2016 03  15.38876  11 33 44.252  -14 47 59.27  21.0G 523787    F51  C~2kRZ      
2016 04  03.34432  11 31 38.273  -14 28 14.78  21.7G 523787    F51  C~2kRZ      
2016 04  03.35557  11 31 38.202  -14 28 13.98  21.7G 523787    F51  C~2kRZ      
2016 04  03.36683  11 31 38.132  -14 28 13.33  21.8G 523787    F51  C~2kRZ      
2016 04  03.37808  11 31 38.058  -14 28 12.42  21.6G 523787    F51  C~2kRZ      
2016 04  29.30339  11 29 24.298  -13 58 28.39  21.3G 523787    F51  C~2kRZ      
2016 04  29.31502  11 29 24.246  -13 58 27.53  21.8G 523787    F51  C~2kRZ      
2016 04  29.32665  11 29 24.205  -13 58 26.72  21.2G 523787    F51  C~2kRZ      
2016 04  29.33826  11 29 24.145  -13 58 26.11  21.0G 523787    F51  C~2kRZ      
2016 05  21.32754  11 28 30.485  -13 35 05.23  22.0G 523787    F51  C~2kRZ      
2017 01  30.54419  11 52 00.448  -15 06 22.32  22.2G 523787    F51  C~2kRZ      
2017 01  30.55581  11 52 00.394  -15 06 22.30  21.7G 523787    F51  C~2kRZ      
2017 01  30.56743  11 52 00.350  -15 06 22.19  22.1G 523787    F51  C~2kRZ      
2017 01  30.57906  11 52 00.305  -15 06 22.04  21.8G 523787    F51  C~2kRZ      
2017 02  17.51763  11 50 33.651  -15 00 30.76  22.4G 523787    F51  C~2kRZ      
2017 02  17.53010  11 50 33.580  -15 00 30.24  22.0G 523787    F51  C~2kRZ      
2017 02  17.54259  11 50 33.502  -15 00 29.96  21.7G 523787    F51  C~2kRZ      
2017 02  17.55506  11 50 33.436  -15 00 29.68  21.4G 523787    F51  C~2kRZ      
2017 03  21.39117  11 47 07.774  -14 36 34.49  21.9G 523787    F51  C~2kRZ      
2017 03  21.40236  11 47 07.693  -14 36 33.91  21.9G 523787    F51  C~2kRZ      
2017 03  21.41358  11 47 07.626  -14 36 33.28  21.7G 523787    F51  C~2kRZ      
2017 03  21.42479  11 47 07.548  -14 36 32.62  21.6G 523787    F51  C~2kRZ      
2017 03  31.36541  11 46 01.461  -14 26 29.68  21.6G 523787    F51  C~2kRZ      
2017 03  31.37728  11 46 01.381  -14 26 28.99  21.6G 523787    F51  C~2kRZ      
2017 03  31.38916  11 46 01.301  -14 26 28.24  21.5G 523787    F51  C~2kRZ      
2017 03  31.40104  11 46 01.227  -14 26 27.32  21.9G 523787    F51  C~2kRZ      
2017 04  25.32379  11 43 39.159  -13 59 03.84  22.1G 523787    F51  C~2kRZ      
2017 04  25.33424  11 43 39.125  -13 59 03.12  22.1G 523787    F51  C~2kRZ      
2017 04  25.34470  11 43 39.079  -13 59 02.44  22.8G 523787    F51  C~2kRZ      
2017 04  25.35520  11 43 39.017  -13 59 01.67  21.9G 523787    F51  C~2kRZ      
2017 12  31.62545  12 05 54.482  -14 52 19.09  22.3G 523787    F51  C~2kRZ      
2018 02  11.55147  12 04 25.543  -14 53 28.72  22.1G 523787    F51  C~2kRZ      
2018 02  11.56330  12 04 25.482  -14 53 28.46  21.8G 523787    F51  C~2kRZ      
2018 02  11.57515  12 04 25.431  -14 53 28.23  22.0G 523787    F51  C~2kRZ      
2018 02  11.58698  12 04 25.375  -14 53 27.95  22.2G 523787    F51  C~2kRZ      
2018 03  22.41861  12 00 30.753  -14 27 25.81  22.3G 523787    F51  C~2kRZ      
2018 04  10.17619  11 58 29.527  -14 08 38.19  21.7R 523787    G37  C~2dZl      
2018 04  10.22848  11 58 29.179  -14 08 34.63        523787    G37  C~2dZl      

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    -0.00
  2   0.0493      0.00    -0.24       0.00     0.43
  3   0.0710      0.00    -0.26       0.00     0.19
  4   0.0711      0.00     0.14       0.00    -0.23
  5   0.0711      0.00    -0.14       0.00    -0.52
  6   0.8927      0.00    -0.00       0.00     0.06
  7   1.0757      0.00     0.01       0.00     0.08
  8   1.0758      0.00    -0.03       0.00     0.11
  9   1.0758      0.00     0.10       0.00     0.08
 10   1.0758      0.00     0.06       0.00     0.09
 11   1.2014      0.00     0.04       0.00     0.05
 12   1.2014      0.00     0.13       0.00     0.09
 13   1.2014      0.00     0.03       0.00     0.07
 14   1.2015      0.00     0.24       0.00     0.13
 15   1.2177      0.00     0.14       0.00    -0.01
 16   1.2177      0.00     0.12       0.00    -0.05
 17   1.2177      0.00     0.13       0.00     0.18
 18   1.2178      0.00     0.21       0.00     0.02
 19   1.2231      0.00     0.22       0.00     0.11
 20   1.2232      0.00     0.18       0.00    -0.08
 21   1.2232      0.00     0.10       0.00    -0.21
 22   1.2232      0.00     0.13       0.00     0.06
 23   1.3025      0.00     0.10       0.00    -0.02
 24   1.3025      0.00    -0.13       0.00    -0.16
 25   1.3025      0.00    -0.20       0.00    -0.03
 26   1.3025      0.00    -0.24       0.00    -0.12
 27   1.3053      0.00    -0.12       0.00     0.06
 28   2.0942      0.00    -0.10       0.00    -0.03
 29   2.0942      0.00    -0.17       0.00     0.16
 30   2.0942      0.00    -0.22       0.00     0.13
 31   2.0942      0.00    -0.04       0.00     0.03
 32   2.1323      0.00    -0.10       0.00    -0.17
 33   2.1842      0.00    -0.07       0.00    -0.02
 34   2.1843      0.00    -0.06       0.00     0.03
 35   2.1843      0.00    -0.03       0.00    -0.08
 36   2.1843      0.00    -0.06       0.00     0.08
 37   2.2553      0.00     0.03       0.00    -0.04
 38   2.2554      0.00    -0.06       0.00     0.03
 39   2.2554      0.00     0.03       0.00     0.05
 40   2.2554      0.00    -0.18       0.00    -0.13
 41   2.3156      0.00    -0.07       0.00    -0.28
 42   3.0116      0.00     0.15       0.00     0.04
 43   3.0117      0.00     0.04       0.00    -0.04
 44   3.0117      0.00     0.08       0.00    -0.04
 45   3.0117      0.00     0.10       0.00     0.00
 46   3.0608      0.00     0.06       0.00    -0.14
 47   3.0609      0.00     0.08       0.00     0.01
 48   3.0609      0.00    -0.00       0.00    -0.08
 49   3.0609      0.00     0.09       0.00    -0.17
 50   3.1481      0.00    -0.08       0.00     0.06
 51   3.1481      0.00    -0.14       0.00    -0.01
 52   3.1482      0.00     0.02       0.00    -0.02
 53   3.1482      0.00     0.01       0.00    -0.01
 54   3.1754      0.00    -0.08       0.00     0.02
 55   3.1754      0.00    -0.10       0.00    -0.03
 56   3.1755      0.00    -0.12       0.00    -0.03
 57   3.1755      0.00    -0.05       0.00     0.14
 58   3.2437      0.00    -0.17       0.00    -0.02
 59   3.2438      0.00     0.08       0.00     0.00
 60   3.2438      0.00     0.14       0.00    -0.01
 61   3.2438      0.00    -0.03       0.00     0.06
 62   3.9290      0.00     0.02       0.00    -0.15
 63   4.0438      0.00     0.08       0.00     0.05
 64   4.0438      0.00     0.03       0.00     0.05
 65   4.0439      0.00     0.12       0.00     0.03
 66   4.0439      0.00     0.15       0.00     0.05
 67   4.1502      0.00    -0.05       0.00     0.03
 68   4.2016      0.00    -0.00       0.00     0.01
 69   4.2017      0.00    -0.35       0.00     0.26

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.

523787    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        56.780    56.780    56.780
ecceobj         0.612     0.612     0.612
incobj         29.447    29.447    29.447
qmin           21.598    21.763    21.715
qmax           97.376    93.102    93.037
amean          56.828    56.424    56.661
amin           55.628    55.332    55.617
amax           59.730    57.905    57.709
emean           0.612     0.606     0.608
emin            0.602     0.599     0.601
emax            0.630     0.614     0.616
imean          29.655    30.025    29.966
imin           29.212    29.776    29.706
imax           29.929    30.266    30.295
excite_mean     0.787     0.786     0.787
fracstop        0.029     0.019     0.024
cjmean          2.428     2.428     2.428

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       284.7     283.6     285.1
kozaiamp          7.7       6.2       7.2