Orbit Fit and Astrometric record for 523770

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: 523770    
# Created Mon Apr 22 01:07:16 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   89 observations of   89
# Arc:   8.27y
# First observation: 2010/12/16
#  Last observation: 2019/03/26
# Chi-squared of fit:    86.90 DOF:  172 RMS:  0.17
# Min/Max residuals:    -0.93    1.26
# Exact a, adot, b, bdot, g, gdot:
  1.995059E-05  5.120986E-02  7.726699E-06  1.402560E-02  3.976137E-02 -3.205187E-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
  -22.872426  159.098265    0.948536   -0.102569   -0.243157  2455547.129066
# Heliocentric elements and errors
Epoch:              2455546.5000  =  2010/12/16
Mean Anomaly:          347.07181 +/-     0.000
Argument of Peri:       24.16757 +/-     0.000
Long of Asc Node:      212.00062 +/-     0.000
Inclination:            26.90697 +/-     0.000
Eccentricity:         0.72102887 +/-    0.0000
Semi-Major Axis:     57.96659560 +/-    0.0000
Time of Perihelion: 2461335.4586 +/-       0.0
Perihelion:          16.17100673 +/-    0.0000
Aphelion:            99.76218446 +/-    0.0000
Period (y)              441.3416 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -21.55185403 +/-    0.0000
Ecliptic Y            9.24620923 +/-    0.0000
Ecliptic Z           -9.77517592 +/-    0.0000
Ecliptic XDOT         0.00029029 +/-    0.0000
Ecliptic YDOT        -0.00387945 +/-    0.0000
Ecliptic ZDOT         0.00174765 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   25.40759674 +/-    0.0000
Geocenter to KBO     25.15038325 +/-    0.0000
# Hcoef:  8.05

The following table shows the complete astrometric record for 523770. 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 (523770) followed by the observatory code and reference code for the source of the astrometry.

2010 12  16.62830  10 08 18.268  -13 03 10.80  22.0G 523770    F51  C~2jhv      
2012 01  29.54796  10 18 01.432  -13 34 58.44  21.1G 523770    F51  C~2jhv      
2012 01  30.56102  10 17 54.628  -13 34 41.29  21.6G 523770    F51  C~2jhv      
2013 03  07.40241  10 27 27.549  -13 33 06.62  21.1G 523770    F51  C~2jhv      
2013 03  20.34454  10 25 54.433  -13 18 59.75  21.2G 523770    F51  C~2jhv      
2013 03  20.35708  10 25 54.309  -13 18 58.51  22.2G 523770    F51  C~2jhv      
2013 05  24.28439  10 22 51.298  -12 02 29.28  21.5G 523770    F51  C~2jhv      
2013 12  11.65282  10 49 37.483  -14 01 56.98  22.8G 523770    F51  C~2jhv      
2014 12  10.63868  11 05 23.888  -14 18 04.77  21.1i 523770    F51  C~1vXv      
2014 12  10.63934  11 05 23.886  -14 18 04.74  21.1i 523770    F51  C~1vXv      
2014 12  10.64264  11 05 23.882  -14 18 05.01  21.2i 523770    F51  C~1vXv      
2014 12  10.64330  11 05 23.893  -14 18 05.08  21.0i 523770    F51  C~1vXv      
2014 12  10.64673  11 05 23.899  -14 18 05.07  21.0i 523770    F51  C~1vXv      
2014 12  10.64740  11 05 23.894  -14 18 05.30  21.0i 523770    F51  C~1vXv      
2014 12  10.65071  11 05 23.905  -14 18 05.64  21.2i 523770    F51  C~1vXv      
2014 12  10.65136  11 05 23.909  -14 18 05.43  21.0i 523770    F51  C~1vXv      
2014 12  18.61655  11 05 34.703  -14 24 49.57  21.6G 523770    F51  C~2jhv      
2014 12  18.62781  11 05 34.704  -14 24 50.50  21.7G 523770    F51  C~2jhv      
2014 12  18.63905  11 05 34.710  -14 24 51.01  21.9G 523770    F51  C~2jhv      
2015 03  22.35732  10 57 07.722  -13 58 25.99  21.2w 523770    F51  C~1vXv      
2015 03  22.36788  10 57 07.642  -13 58 25.19  21.2w 523770    F51  C~1vXv      
2015 03  22.37845  10 57 07.559  -13 58 24.38  21.3w 523770    F51  C~1vXv      
2015 03  22.38899  10 57 07.475  -13 58 23.61  21.3w 523770    F51  C~1vXv      
2015 03  23.38599  10 57 00.015  -13 57 10.53  21.1w 523770    F51  C~1vXv      
2015 03  23.39662  10 56 59.934  -13 57 09.72  21.2w 523770    F51  C~1vXv      
2015 03  23.40720  10 56 59.853  -13 57 08.91  21.2w 523770    F51  C~1vXv      
2015 03  23.41782  10 56 59.773  -13 57 08.09  21.3w 523770    F51  C~1vXv      
2015 04  23.30520  10 53 54.668  -13 16 24.43  21.4r 523770    F51  C~1vXv      
2015 04  23.31814  10 53 54.628  -13 16 23.16  21.6r 523770    F51  C~1vXv      
2015 04  23.33071  10 53 54.566  -13 16 22.38  21.2r 523770    F51  C~1vXv      
2015 04  23.34325  10 53 54.520  -13 16 21.45  21.3r 523770    F51  C~1vXv      
2016 01  09.59216  11 22 33.071  -14 52 12.53  21.1G 523770    F51  C~2jhv      
2016 01  09.60299  11 22 33.042  -14 52 12.54  20.8G 523770    F51  C~2jhv      
2016 01  09.61357  11 22 33.020  -14 52 12.76  21.1G 523770    F51  C~2jhv      
2016 02  14.48600  11 19 34.561  -14 48 37.37        523770    F51  C~2jhv      
2016 02  14.49854  11 19 34.463  -14 48 36.93        523770    F51  C~2jhv      
2016 02  14.51108  11 19 34.369  -14 48 36.52        523770    F51  C~2jhv      
2016 02  14.52384  11 19 34.277  -14 48 36.18        523770    F51  C~2jhv      
2016 04  03.34304  11 13 12.311  -13 58 50.87  21.2G 523770    F51  C~2jhv      
2016 04  03.35429  11 13 12.226  -13 58 49.92  21.0G 523770    F51  C~2jhv      
2017 01  30.53968  11 40 07.105  -15 06 04.64  21.1G 523770    F51  C~2jhw      
2017 01  30.55131  11 40 07.052  -15 06 04.39  21.0G 523770    F51  C~2jhw      
2017 01  30.56293  11 40 06.988  -15 06 04.42  20.8G 523770    F51  C~2jhw      
2017 01  30.57456  11 40 06.926  -15 06 04.25  20.9G 523770    F51  C~2jhw      
2017 02  17.51570  11 38 16.449  -14 59 04.28  21.3G 523770    F51  C~2jhw      
2017 02  17.52818  11 38 16.361  -14 59 03.68  21.2G 523770    F51  C~2jhw      
2017 02  17.54066  11 38 16.263  -14 59 03.30  21.2G 523770    F51  C~2jhw      
2017 02  17.55312  11 38 16.171  -14 59 02.89  21.1G 523770    F51  C~2jhw      
2017 02  24.66256  11 37 23.01   -14 54 06.3   19.7R 523770    Q62  C~29EW      
2017 02  24.68963  11 37 22.83   -14 54 04.6         523770    Q62  C~29EW      
2017 02  27.65428  11 36 59.52   -14 51 41.3   19.8R 523770    Q62  C~29EW      
2017 02  27.67413  11 36 59.35   -14 51 40.2         523770    Q62  C~29EW      
2017 03  21.39052  11 34 00.026  -14 28 53.10  20.9G 523770    F51  C~2jhw      
2017 03  21.40172  11 33 59.929  -14 28 52.22  20.8G 523770    F51  C~2jhw      
2017 03  21.41293  11 33 59.835  -14 28 51.40  20.8G 523770    F51  C~2jhw      
2017 03  21.42415  11 33 59.742  -14 28 50.58  20.8G 523770    F51  C~2jhw      
2017 03  31.36003  11 32 39.492  -14 16 03.32  20.9G 523770    F51  C~2jhw      
2017 03  31.37188  11 32 39.396  -14 16 02.38  20.9G 523770    F51  C~2jhw      
2017 03  31.38378  11 32 39.296  -14 16 01.39  20.9G 523770    F51  C~2jhw      
2017 03  31.39564  11 32 39.203  -14 16 00.44  21.0G 523770    F51  C~2jhw      
2017 04  25.31862  11 29 52.889  -13 41 10.37  21.0G 523770    F51  C~2jhw      
2017 04  25.32910  11 29 52.833  -13 41 09.43  21.0G 523770    F51  C~2jhw      
2017 04  25.33956  11 29 52.781  -13 41 08.61  21.1G 523770    F51  C~2jhw      
2017 04  25.35004  11 29 52.725  -13 41 07.73  21.1G 523770    F51  C~2jhw      
2017 12  30.58490  12 01 16.261  -15 05 07.04  21.2G 523770    F51  C~2jhw      
2017 12  30.59588  12 01 16.279  -15 05 07.38  21.2G 523770    F51  C~2jhw      
2017 12  30.60685  12 01 16.288  -15 05 07.88  20.9G 523770    F51  C~2jhw      
2017 12  30.61785  12 01 16.305  -15 05 08.27  21.1G 523770    F51  C~2jhw      
2017 12  31.60099  12 01 17.845  -15 05 43.61  20.9G 523770    F51  C~2jhw      
2017 12  31.61321  12 01 17.859  -15 05 44.02  21.0G 523770    F51  C~2jhw      
2017 12  31.62545  12 01 17.872  -15 05 44.35  20.9G 523770    F51  C~2jhw      
2017 12  31.63768  12 01 17.886  -15 05 44.95  21.1G 523770    F51  C~2jhw      
2018 01  02.59845  12 01 20.362  -15 06 51.78  21.4G 523770    F51  C~2jhw      
2018 01  02.60930  12 01 20.376  -15 06 52.18  21.4G 523770    F51  C~2jhw      
2018 01  02.62009  12 01 20.387  -15 06 52.60  21.3G 523770    F51  C~2jhw      
2018 01  02.63104  12 01 20.403  -15 06 52.90  21.2G 523770    F51  C~2jhw      
2018 01  10.59533  12 01 22.648  -15 10 31.50  21.3G 523770    F51  C~2jhw      
2018 01  10.60568  12 01 22.640  -15 10 31.74  21.2G 523770    F51  C~2jhw      
2018 01  10.61602  12 01 22.638  -15 10 32.12  20.9G 523770    F51  C~2jhw      
2018 01  10.62638  12 01 22.631  -15 10 32.22  21.1G 523770    F51  C~2jhw      
2018 02  11.55018  11 59 34.550  -15 09 33.81  21.0G 523770    F51  C~2jhw      
2018 02  11.56201  11 59 34.475  -15 09 33.47  21.0G 523770    F51  C~2jhw      
2018 02  11.57386  11 59 34.404  -15 09 33.21  20.9G 523770    F51  C~2jhw      
2018 02  11.58570  11 59 34.331  -15 09 32.92  21.0G 523770    F51  C~2jhw      
2018 03  22.41861  11 54 34.659  -14 35 40.13  20.6G 523770    F51  C~2jhw      
2018 04  10.17534  11 52 00.705  -14 10 30.62  20.5R 523770    G37  C~2bHH      
2018 04  10.22773  11 52 00.285  -14 10 26.35        523770    G37  C~2bHH      
2019 03  26.67215  12 16 17.90   -14 31 32.5   20.2R 523770    D29  C~323u      
2019 03  26.68629  12 16 17.92   -14 31 31.2   20.9R 523770    D29  C~323u      

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    -0.09       0.00    -0.44
  2   1.1196      0.00     0.14       0.00     0.10
  3   1.1223      0.00    -0.08       0.00     0.03
  4   2.2225      0.00    -0.15       0.00     0.11
  5   2.2580      0.00     0.26       0.00     0.02
  6   2.2580      0.00    -0.30       0.00     0.38
  7   2.4357      0.00     0.07       0.00     0.24
  8   2.9871      0.00    -0.12       0.00    -0.02
  9   3.9836      0.00     0.11       0.00    -0.03
 10   3.9836      0.00     0.06       0.00     0.04
 11   3.9836      0.00    -0.09       0.00    -0.05
 12   3.9836      0.00     0.06       0.00    -0.09
 13   3.9836      0.00     0.05       0.00     0.11
 14   3.9836      0.00    -0.05       0.00    -0.08
 15   3.9836      0.00     0.02       0.00    -0.24
 16   3.9836      0.00     0.07       0.00     0.01
 17   4.0054      0.00    -0.11       0.00     0.24
 18   4.0055      0.00    -0.17       0.00    -0.17
 19   4.0055      0.00    -0.17       0.00    -0.16
 20   4.2621      0.00     0.05       0.00    -0.04
 21   4.2621      0.00     0.07       0.00    -0.01
 22   4.2621      0.00     0.04       0.00     0.03
 23   4.2622      0.00    -0.01       0.00     0.03
 24   4.2649      0.00     0.00       0.00    -0.03
 25   4.2649      0.00     0.00       0.00    -0.00
 26   4.2650      0.00    -0.00       0.00     0.03
 27   4.2650      0.00     0.01       0.00     0.07
 28   4.3496      0.00     0.02       0.00     0.05
 29   4.3496      0.00     0.25       0.00     0.28
 30   4.3496      0.00     0.13       0.00     0.06
 31   4.3497      0.00     0.25       0.00    -0.02
 32   5.0649      0.00     0.00       0.00     0.07
 33   5.0650      0.00    -0.03       0.00     0.28
 34   5.0650      0.00     0.03       0.00     0.28
 35   5.1632      0.00     0.03       0.00    -0.04
 36   5.1632      0.00    -0.06       0.00    -0.01
 37   5.1633      0.00    -0.09       0.00    -0.01
 38   5.1633      0.00    -0.07       0.00    -0.09
 39   5.2970      0.00    -0.03       0.00    -0.05
 40   5.2970      0.00    -0.09       0.00    -0.01
 41   6.1243      0.00    -0.11       0.00    -0.02
 42   6.1244      0.00    -0.00       0.00     0.12
 43   6.1244      0.00    -0.06       0.00    -0.03
 44   6.1244      0.00    -0.09       0.00     0.03
 45   6.1735      0.00    -0.03       0.00    -0.08
 46   6.1736      0.00     0.03       0.00     0.07
 47   6.1736      0.00    -0.07       0.00    -0.01
 48   6.1736      0.00    -0.07       0.00    -0.06
 49   6.1931      0.00     0.05       0.00    -0.27
 50   6.1932      0.00     0.56       0.00     0.17
 51   6.2013      0.00     0.13       0.00    -0.56
 52   6.2014      0.00    -0.00       0.00    -0.47
 53   6.2608      0.00    -0.04       0.00    -0.04
 54   6.2608      0.00    -0.07       0.00     0.01
 55   6.2609      0.00    -0.06       0.00     0.01
 56   6.2609      0.00    -0.03       0.00     0.00
 57   6.2881      0.00     0.02       0.00    -0.04
 58   6.2881      0.00     0.00       0.00    -0.05
 59   6.2882      0.00    -0.07       0.00    -0.01
 60   6.2882      0.00    -0.04       0.00    -0.01
 61   6.3564      0.00    -0.09       0.00    -0.01
 62   6.3565      0.00    -0.08       0.00     0.05
 63   6.3565      0.00    -0.01       0.00    -0.02
 64   6.3565      0.00    -0.00       0.00    -0.02
 65   7.0389      0.00     0.03       0.00    -0.04
 66   7.0389      0.00     0.05       0.00     0.03
 67   7.0390      0.00    -0.06       0.00    -0.07
 68   7.0390      0.00    -0.05       0.00    -0.05
 69   7.0417      0.00     0.05       0.00     0.04
 70   7.0417      0.00     0.03       0.00     0.06
 71   7.0417      0.00    -0.01       0.00     0.17
 72   7.0418      0.00    -0.04       0.00     0.00
 73   7.0471      0.00    -0.09       0.00     0.03
 74   7.0472      0.00    -0.02       0.00    -0.01
 75   7.0472      0.00    -0.00       0.00    -0.07
 76   7.0472      0.00     0.09       0.00    -0.01
 77   7.0690      0.00    -0.04       0.00     0.03
 78   7.0691      0.00    -0.05       0.00     0.02
 79   7.0691      0.00     0.02       0.00    -0.13
 80   7.0691      0.00     0.02       0.00    -0.01
 81   7.1565      0.00    -0.02       0.00     0.02
 82   7.1566      0.00    -0.05       0.00     0.05
 83   7.1566      0.00    -0.03       0.00     0.00
 84   7.1566      0.00    -0.03       0.00    -0.02
 85   7.2629      0.00    -0.03       0.00     0.07
 86   7.3143      0.00    -0.17       0.00     0.05
 87   7.3144      0.00    -0.32       0.00    -0.13
 88   8.2739      0.00    -0.93       0.00     0.20
 89   8.2739      0.00     1.26       0.00     0.41

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.

523770    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        57.992    57.991    57.994
ecceobj         0.720     0.720     0.720
incobj         26.898    26.898    26.898
qmin           15.974    15.964    15.950
qmax          103.030   105.513   107.478
amean          57.752    58.601    58.585
amin           56.176    57.028    55.463
amax           59.704    60.967    61.918
emean           0.711     0.716     0.716
emin            0.700     0.697     0.693
emax            0.726     0.732     0.736
imean          28.570    28.546    28.368
imin           27.206    27.200    27.203
imax           30.005    30.096    30.146
excite_mean     0.857     0.861     0.860
fracstop        0.046     0.048     0.045
cjmean          2.240     2.232     2.234

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        34.0      33.4      35.2
kozaiamp         10.2       9.6      11.4