Orbit Fit and Astrometric record for 523620

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: 523620    
# Created Wed Feb 19 02:07:27 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  101 observations of  102
# Arc:  36.65y
# First observation: 1983/05/08
#  Last observation: 2020/01/01
# Chi-squared of fit:   307.73 DOF:  196 RMS:  0.31
# Min/Max residuals:    -0.97    0.89
# Exact a, adot, b, bdot, g, gdot:
  2.668833E-05  1.202966E-01 -7.903179E-06 -2.617194E-02  7.422337E-02 -4.987521E-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
  -19.332060  162.572220   -0.904422   -0.140818   -0.402231  2445462.882756
# Heliocentric elements and errors
Epoch:              2445462.5000  =  1983/05/08
Mean Anomaly:          310.57286 +/-     0.000
Argument of Peri:      329.00080 +/-     0.000
Long of Asc Node:      286.58648 +/-     0.000
Inclination:            21.36033 +/-     0.000
Eccentricity:         0.34163763 +/-    0.0000
Semi-Major Axis:     15.99899552 +/-    0.0000
Time of Perihelion: 2448671.7271 +/-       0.0
Perihelion:          10.53313664 +/-    0.0000
Aphelion:            21.46485440 +/-    0.0000
Period (y)               63.9952 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -12.81208221 +/-    0.0000
Ecliptic Y            3.06361243 +/-    0.0000
Ecliptic Z           -4.46023938 +/-    0.0000
Ecliptic XDOT         0.00063974 +/-    0.0000
Ecliptic YDOT        -0.00485356 +/-    0.0000
Ecliptic ZDOT        -0.00030208 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   13.90799267 +/-    0.0000
Geocenter to KBO     13.47303777 +/-    0.0000
# Hcoef:  8.57

The following table shows the complete astrometric record for 523620. 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 (523620) followed by the observatory code and reference code for the source of the astrometry.

1983 05  08.38214  10 26 06.23   -11 01 44.7   19.6  523620    260   w9865      
1984 03  29.51347  10 56 15.94   -16 18 18.0         523620    260   w9865      
1984 03  29.55514  10 56 15.42   -16 18 14.3         523620    260   w9865      
1991 04  13.70019  16 28 54.51   -36 52 17.0   18.5R 523620    260   w9865      
1991 04  13.73491  16 28 54.13   -36 52 17.5   18.5R 523620    260   w9865      
2001 08  23.305667 22 43 14.67   +13 33 54.9   20.0V 523620    645  C~1SgY      
2001 08  23.306496 22 43 14.66   +13 33 54.9   19.8V 523620    645  C~1SgY      
2001 08  23.308984 22 43 14.61   +13 33 54.8   20.6V 523620    645  C~1SgY      
2001 10  06.16824  22 34 36.09   +12 41 42.8   20.0R 523620    644  Cw9865      
2001 10  06.17878  22 34 35.97   +12 41 42.1   19.5R 523620    644  Cw9865      
2001 10  06.18924  22 34 35.87   +12 41 41.6         523620    644  Cw9865      
2002 08  14.44906  23 08 28.21   +17 14 10.0   19.6R 523620    644  Cw9865      
2002 08  14.45954  23 08 28.09   +17 14 09.9   19.7R 523620    644  Cw9865      
2002 08  14.46986  23 08 28.00   +17 14 09.8   19.7R 523620    644  Cw9865      
2002 08  15.39766  23 08 17.79   +17 14 00.2   19.9R 523620    644  Cw9865      
2002 08  15.40874  23 08 17.66   +17 14 00.3   19.9R 523620    644  Cw9865      
2002 08  15.42084  23 08 17.49   +17 13 59.9   20.1R 523620    644  Cw9865      
2002 08  22.36516  23 06 58.10   +17 11 49.7   19.9R 523620    644  Cw9865      
2002 08  22.37209  23 06 58.00   +17 11 50.0   19.6R 523620    644  Cw9865      
2002 08  22.37797  23 06 57.97   +17 11 49.7   20.0R 523620    644  Cw9865      
2002 08  22.38391  23 06 57.91   +17 11 49.5   19.6R 523620    644  Cw9865      
2002 08  22.38847  23 06 57.80   +17 11 48.9   19.8R 523620    644  Cw9865      
2002 08  22.39683  23 06 57.72   +17 11 49.3   20.0R 523620    644  Cw9865      
2002 09  03.26892  23 04 33.38   +17 04 17.3   19.5R 523620    644  Cw9865      
2002 09  03.29020  23 04 33.13   +17 04 16.0   19.6R 523620    644  Cw9865      
2002 09  03.31126  23 04 32.86   +17 04 15.0   19.4R 523620    644  Cw9865      
2002 09  11.35730  23 02 52.55   +16 56 38.0   19.8R 523620    644  Cw9865      
2002 09  11.37134  23 02 52.42   +16 56 37.3   19.9R 523620    644  Cw9865      
2002 09  11.38796  23 02 52.21   +16 56 35.8   19.5R 523620    644  Cw9865      
2002 10  03.14888  22 58 36.41   +16 28 03.5   19.4R 523620    644  Cw9865      
2002 10  03.16315  22 58 36.23   +16 28 02.1   19.5R 523620    644  Cw9865      
2002 10  03.17010  22 58 36.15   +16 28 01.7   19.6R 523620    644  Cw9865      
2002 10  03.18432  22 58 36.02   +16 27 59.7   19.9R 523620    644  Cw9865      
2002 10  03.20527  22 58 35.83   +16 27 58.5   20.0R 523620    644  Cw9865      
2004 09  07.23430  23 47 43.48   +23 03 50.6   20.1R 523620    644  Cw9865      
2004 09  07.29912  23 47 42.71   +23 03 48.5   21.1R 523620    644  Cw9865      
2004 09  07.36333  23 47 41.93   +23 03 46.1   21.0R 523620    644  Cw9865      
2007 09  15.26864  00 47 13.96   +29 29 21.5   21.5R 523620    675  Cw9865      
2007 09  15.34437  00 47 13.21   +29 29 19.4   21.3R 523620    675  Cw9865      
2007 09  16.22344  00 47 03.59   +29 28 57.9   21.4R 523620    675  Cw9865      
2007 09  16.26627  00 47 03.17   +29 28 56.8   21.1R 523620    675  Cw9865      
2007 10  04.15470  00 43 37.6    +29 16 25.3         523620    688 YCw9865      
2007 10  04.21506  00 43 36.8    +29 16 22.0         523620    688 YCw9865      
2007 10  04.27573  00 43 36.1    +29 16 18.3         523620    688 YCw9865      
2007 11  17.13895  00 36 04.2    +28 14 58.6         523620    688 YCw9865      
2007 11  17.19821  00 36 03.7    +28 14 52.7         523620    688 YCw9865      
2007 11  17.24912  00 36 03.4    +28 14 47.6         523620    688 YCw9865      
2008 08  30.97579  01 08 45.98   +31 05 19.0   21.4V 523620    A74  Cz5249      
2008 08  31.01910  01 08 45.60   +31 05 18.8   21.5V 523620    A74  Cz5249      
2008 08  31.06253  01 08 45.24   +31 05 19.3   21.3V 523620    A74  Cz5249      
2008 10  23.78720  00 59 04.42   +30 33 07.5   21.2V 523620    A74  C~00QX      
2008 10  23.81970  00 59 04.03   +30 33 05.7   21.1V 523620    A74  C~00QX      
2008 10  23.85761  00 59 03.50   +30 33 03.9   21.1V 523620    A74  C~00QX      
2009 01  29.161134 00 55 08.07   +28 28 57.7   21.3V 523620    645  C~1rRH      
2009 01  29.161956 00 55 08.07   +28 28 57.7         523620    645  C~1rRH      
2009 01  29.164444 00 55 08.09   +28 28 57.7         523620    645  C~1rRH      
2009 10  17.427894 01 19 21.03   +32 07 00.1   20.9V 523620    645  C~1rRH      
2009 10  17.428727 01 19 21.02   +32 07 00.1   20.9V 523620    645  C~1rRH      
2009 10  17.431215 01 19 21.00   +32 07 00.0   20.9V 523620    645  C~1rRH      
2011 01  09.08264  01 28 20.89   +31 27 41.5   21.4R 523620    695  C~0U4U      
2011 01  09.14807  01 28 20.98   +31 27 37.0         523620    695  C~0U4U      
2011 01  18.25192  01 28 44.594  +31 18 10.36  21.4G 523620    F51  C~2jgX      
2011 11  13.48862  01 51 14.918  +33 50 46.87  20.5G 523620    F51  C~2jgX      
2011 11  25.25251  01 49 16.849  +33 34 48.15  21.4G 523620    F51  C~2jgX      
2011 11  25.26405  01 49 16.753  +33 34 47.23  21.4G 523620    F51  C~2jgX      
2012 10  10.55363  02 15 34.304  +35 09 57.97  21.0G 523620    F51  C~2jgX      
2012 10  10.56561  02 15 34.169  +35 09 57.77  21.4G 523620    F51  C~2jgX      
2012 10  10.57792  02 15 34.026  +35 09 57.50  21.7G 523620    F51  C~2jgX      
2012 10  10.59047  02 15 33.897  +35 09 56.99  21.6G 523620    F51  C~2jgX      
2012 10  19.42332  02 13 53.549  +35 04 54.81  21.2G 523620    F51  C~2jgX      
2012 11  03.33870  02 10 58.394  +34 52 12.68  21.5G 523620    F51  C~2jgX      
2012 11  03.35117  02 10 58.253  +34 52 11.95  21.2G 523620    F51  C~2jgX      
2013 08  20.59579  02 38 39.155  +35 32 02.94  21.7G 523620    F51  C~2jgX      
2013 08  23.51624  02 38 34.930  +35 34 21.90  21.7G 523620    F51  C~2jgX      
2013 11  23.33484  02 24 53.487  +35 10 17.28  21.5G 523620    F51  C~2jgX      
2015 10  10.48333  03 07 27.238  +36 28 46.90  21.8G 523620    F51  C~2jgX      
2015 10  10.49551  03 07 27.120  +36 28 46.85  21.9G 523620    F51  C~2jgX      
2015 10  10.50773  03 07 27.003  +36 28 46.83  21.8G 523620    F51  C~2jgX      
2015 10  10.51998  03 07 26.866  +36 28 46.67  21.7G 523620    F51  C~2jgX      
2015 10  11.29528  03 07 19.44   +36 28 41.4   21.7R 523620    695  C~1hU6      
2015 10  11.34059  03 07 18.95   +36 28 41.0         523620    695  C~1hU6      
2015 10  11.39190  03 07 18.46   +36 28 41.1         523620    695  C~1hU6      
2015 10  12.52197  03 07 07.462  +36 28 30.36  22.0G 523620    F51  C~2jgX      
2015 10  12.53385  03 07 07.293  +36 28 30.30  21.8G 523620    F51  C~2jgX      
2015 10  12.54571  03 07 07.202  +36 28 29.96  22.1G 523620    F51  C~2jgY      
2015 10  12.55752  03 07 07.070  +36 28 29.80  21.8G 523620    F51  C~2jgY      
2015 10  13.51338  03 06 57.618  +36 28 20.17  21.9G 523620    F51  C~2jgY      
2015 10  13.52563  03 06 57.489  +36 28 20.16  21.7G 523620    F51  C~2jgY      
2015 10  13.53791  03 06 57.364  +36 28 19.96  21.8G 523620    F51  C~2jgY      
2015 10  13.55023  03 06 57.231  +36 28 19.84  22.0G 523620    F51  C~2jgY      
2015 12  06.34545  02 56 51.825  +35 49 18.92  21.4G 523620    F51  C~2jgY      
2015 12  06.35818  02 56 51.707  +35 49 18.07  21.5G 523620    F51  C~2jgY      
2015 12  06.37093  02 56 51.559  +35 49 17.01  21.6G 523620    F51  C~2jgY      
2015 12  06.38373  02 56 51.440  +35 49 16.19  21.5G 523620    F51  C~2jgY      
2016 10  14.51297  03 23 14.640  +36 36 05.51  23.0G 523620    F51  C~2jgY      
2017 10  03.48397  03 41 01.139  +36 35 10.61  21.6G 523620    F51  C~2jgY      
2017 10  03.49611  03 41 01.028  +36 35 10.70  21.6G 523620    F51  C~2jgY      
2017 10  03.52043  03 41 00.873  +36 35 11.32  21.0G 523620    F51  C~2jgY      
2018 01  03.27469  03 25 26.532  +35 37 54.43  22.1G 523620    F51  C~2jgY      
2020 01  01.29983  03 57 07.890  +35 31 31.86  21.7i 523620    F51  C~3a69      
2020 01  01.31119  03 57 07.782  +35 31 31.07  21.3i 523620    F51  C~3a69      
2020 01  01.32256  03 57 07.676  +35 31 30.41  21.2i 523620    F51  C~3a69      

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    -0.02       0.00     0.53
  2   0.8929      0.00     0.59       0.00     0.40
  3   0.8930      0.00     0.37       0.00     0.15
  4   7.9324      0.00     0.01       0.00     0.06
  5   7.9325      0.00    -0.40       0.00    -0.00
  6  18.2941      0.00     0.41       0.00    -0.31
  7  18.2941      0.00     0.42       0.00    -0.28
  8  18.2941      0.00     0.14       0.00    -0.28
  9  18.4142      0.00     0.64       0.00    -0.71
 10  18.4142      0.00     0.35       0.00    -0.44
 11  18.4143      0.00     0.36       0.00     0.02
 12  19.2692      0.00    -0.08       0.00     0.17
 13  19.2692      0.00    -0.12       0.00     0.17
 14  19.2692      0.00     0.25       0.00     0.17
 15  19.2718      0.00     0.03       0.00     0.10
 16  19.2718      0.00    -0.04       0.00     0.32
 17  19.2718      0.00    -0.54       0.00     0.06
 18  19.2909      0.00    -0.43       0.00    -0.06
 19  19.2909      0.00    -0.68       0.00     0.42
 20  19.2909      0.00    -0.07       0.00     0.27
 21  19.2909      0.00     0.10       0.00     0.23
 22  19.2909      0.00    -0.73       0.00    -0.25
 23  19.2909      0.00    -0.43       0.00     0.37
 24  19.3234      0.00    -0.33       0.00    -0.00
 25  19.3235      0.00    -0.05       0.00    -0.25
 26  19.3236      0.00    -0.10       0.00    -0.21
 27  19.3456      0.00    -0.33       0.00     0.54
 28  19.3456      0.00     0.39       0.00     0.74
 29  19.3457      0.00     0.39       0.00     0.31
 30  19.4052      0.00     0.21       0.00     0.11
 31  19.4053      0.00    -0.17       0.00    -0.00
 32  19.4053      0.00    -0.23       0.00     0.22
 33  19.4053      0.00     0.14       0.00    -0.50
 34  19.4054      0.00     0.71       0.00     0.20
 35  21.3357      0.00     0.22       0.00     0.17
 36  21.3358      0.00     0.28       0.00     0.53
 37  21.3360      0.00     0.11       0.00     0.61
 38  24.3556      0.00    -0.97       0.00     0.24
 39  24.3558      0.00     0.30       0.00    -0.10
 40  24.3582      0.00    -0.91       0.00     0.11
 41  24.3583      0.00    -0.10       0.00     0.06
 42  24.4073      0.00     0.54       0.00     0.09
 43  24.4075      0.00    -0.63       0.00     0.21
 44  24.4076      0.00    -0.20       0.00    -0.01
 45  24.5277      0.00     0.15       0.00    -0.16
 46  24.5279      0.00    -0.68       0.00    -0.24
 47  24.5280      0.00     0.54       0.00    -0.33
 48  25.3158      0.00     0.40       0.00     0.18
 49  25.3159      0.00     0.06       0.00    -0.59
 50  25.3160      0.00     0.05       0.00    -0.65
 51  25.4631      0.00    -0.22       0.00    -0.53
 52  25.4632      0.00    -0.53       0.00     0.19
 53  25.4633      0.00 (  -2.01)      0.00 (   1.33)
 54  25.7297      0.00     0.58       0.00    -0.28
 55  25.7297      0.00     0.48       0.00    -0.26
 56  25.7297      0.00     0.47       0.00    -0.20
 57  26.4450      0.00     0.13       0.00    -0.00
 58  26.4450      0.00     0.13       0.00     0.05
 59  26.4450      0.00     0.27       0.00     0.11
 60  27.6734      0.00    -0.24       0.00     0.32
 61  27.6736      0.00    -0.16       0.00     0.28
 62  27.6985      0.00     0.19       0.00    -0.63
 63  28.5177      0.00    -0.31       0.00    -0.14
 64  28.5500      0.00    -0.04       0.00    -0.14
 65  28.5500      0.00     0.16       0.00    -0.09
 66  29.4269      0.00     0.03       0.00    -0.21
 67  29.4269      0.00     0.02       0.00    -0.07
 68  29.4270      0.00    -0.05       0.00     0.01
 69  29.4270      0.00     0.12       0.00    -0.14
 70  29.4512      0.00    -0.04       0.00     0.11
 71  29.4920      0.00     0.14       0.00    -0.13
 72  29.4920      0.00     0.25       0.00    -0.11
 73  30.2867      0.00     0.09       0.00    -0.11
 74  30.2947      0.00    -0.00       0.00    -0.16
 75  30.5461      0.00     0.03       0.00    -0.03
 76  32.4246      0.00     0.08       0.00    -0.09
 77  32.4247      0.00     0.10       0.00    -0.06
 78  32.4247      0.00     0.14       0.00     0.00
 79  32.4247      0.00    -0.12       0.00    -0.07
 80  32.4269      0.00     0.11       0.00     0.46
 81  32.4270      0.00    -0.54       0.00     0.39
 82  32.4271      0.00    -0.28       0.00     0.89
 83  32.4302      0.00     0.38       0.00    -0.05
 84  32.4303      0.00    -0.36       0.00     0.01
 85  32.4303      0.00     0.06       0.00    -0.21
 86  32.4303      0.00    -0.13       0.00    -0.26
 87  32.4329      0.00     0.13       0.00    -0.15
 88  32.4330      0.00     0.06       0.00    -0.02
 89  32.4330      0.00     0.07       0.00    -0.08
 90  32.4330      0.00    -0.04       0.00    -0.06
 91  32.5803      0.00     0.05       0.00     0.01
 92  32.5804      0.00     0.26       0.00     0.04
 93  32.5804      0.00     0.02       0.00    -0.14
 94  32.5804      0.00     0.23       0.00    -0.08
 95  33.4377      0.00     0.10       0.00     0.33
 96  34.4069      0.00     0.08       0.00    -0.06
 97  34.4069      0.00    -0.23       0.00    -0.10
 98  34.4069      0.00     0.14       0.00     0.27
 99  34.6582      0.00    -0.02       0.00    -0.23
100  36.6514      0.00     0.24       0.00     0.03
101  36.6514      0.00     0.12       0.00    -0.11
102  36.6514      0.00     0.02       0.00    -0.11

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.

523620    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        15.983    15.983    15.982
ecceobj         0.340     0.340     0.340
incobj         21.356    21.356    21.356
qmin           10.072     9.776     9.135
qmax           23.940    22.867    21.784
amean          16.062    16.080    14.206
amin           15.484    15.542    13.094
amax           17.228    16.652    16.151
emean           0.352     0.361     0.316
emin            0.320     0.323     0.248
emax            0.390     0.391     0.349
imean          22.060    22.123    22.170
imin           20.571    20.113    20.579
imax           23.409    23.793    23.912
excite_mean     0.515     0.522     0.493
fracstop        0.005     0.005     0.004
cjmean          3.146     3.139     3.334

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       122.0     103.3     120.9
kozaiamp        176.1     176.2     173.6