Orbit Fit and Astrometric record for 05CG81

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: 05CG81    
# Created Fri Dec  3 02:10:15 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     90 observations of     90
# Arc:  13.07y
# First observation: 2005/02/10
#  Last observation: 2018/03/06
# Chi-squared of fit:   101.88 DOF:    174 RMS:  0.19
# Min/Max residuals:    -0.60    0.55
# Exact a, adot, b, bdot, g, gdot:
  1.656703E-05  2.065005E-02  7.721727E-06  1.013511E-02  2.291096E-02 -3.925446E-03
# Covariance matrix:
  9.8507E-14 -2.1424E-14  1.1228E-14 -7.0427E-15  3.6146E-15 -5.0926E-14
 -2.1424E-14  1.1166E-14 -7.9679E-15  5.1521E-15  8.6153E-15  3.7205E-14
  1.1228E-14 -7.9679E-15  8.0494E-14 -1.1117E-14 -6.0189E-15 -2.8742E-14
 -7.0427E-15  5.1521E-15 -1.1117E-14  3.4399E-15  4.6659E-15  1.8618E-14
  3.6146E-15  8.6153E-15 -6.0189E-15  4.6659E-15  6.2566E-14  3.3450E-14
 -5.0926E-14  3.7205E-14 -2.8742E-14  1.8618E-14  3.3450E-14  1.3443E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.209064  136.974197   -0.076540    0.020804   -0.980338  2453411.809733
# Heliocentric elements and errors
Epoch:              2453412.5000  =  2005/02/11
Mean Anomaly:          326.50244 +/-     0.004
Argument of Peri:       56.22304 +/-     0.006
Long of Asc Node:      134.66237 +/-     0.000
Inclination:            26.10681 +/-     0.000
Eccentricity:         0.24277416 +/-    0.0000
Semi-Major Axis:     54.26922440 +/-    0.0030
Time of Perihelion: 2466999.9998 +/-      11.2
Perihelion:          41.09405913 +/-    0.0028
Aphelion:            67.44438966 +/-    0.0041
Period (y)              399.7962 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -32.67491751 +/-    0.0003
Ecliptic Y           30.38767083 +/-    0.0003
Ecliptic Z            0.92131127 +/-    0.0000
Ecliptic XDOT        -0.00132241 +/-    0.0000
Ecliptic YDOT        -0.00214861 +/-    0.0000
Ecliptic ZDOT         0.00120104 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.63093244 +/-    0.0003
Geocenter to KBO     43.64739177 +/-    0.0005
# Hcoef:  6.38

The following table shows the complete astrometric record for 05CG81. 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 (05CG81) followed by the observatory code and reference code for the source of the astrometry.

2005 02  10.30899  09 19 13.69   +16 54 02.4   23.2g 05CG81    568  C~0X5e      
2005 02  10.39196  09 19 13.31   +16 54 04.6   23.0g 05CG81    568  C~0X5e      
2005 02  10.43152  09 19 13.12   +16 54 05.7   23.2g 05CG81    568  C~0X5e      
2005 02  15.33214  09 18 50.93   +16 56 15.7   22.5g 05CG81    568  C~0X5e      
2005 03  12.193753 09 17 08.10   +17 06 15.7   22.1V 05CG81    645  C~1GLS      
2005 03  12.194582 09 17 08.10   +17 06 15.7   21.8V 05CG81    645  C~1GLS      
2005 03  12.197070 09 17 08.09   +17 06 15.8   22.7V 05CG81    645  C~1GLS      
2005 04  11.30482  09 15 49.71   +17 14 27.5   22.7i 05CG81    568  C~0X5e      
2005 04  11.33442  09 15 49.67   +17 14 27.8   22.6i 05CG81    568  C~0X5e      
2005 04  11.35928  09 15 49.64   +17 14 28.0   22.7i 05CG81    568  C~0X5e      
2006 02  06.32376  09 25 02.26   +17 03 28.0   22.7r 05CG81    568  C~0X5e      
2006 02  06.36445  09 25 02.07   +17 03 29.3   22.4r 05CG81    568  C~0X5e      
2006 02  06.40320  09 25 01.89   +17 03 30.3   22.6r 05CG81    568  C~0X5e      
2006 11  23.49693  09 34 11.06   +16 46 43.1         05CG81    695  C~0X5e      
2006 11  24.49911  09 34 10.93   +16 46 53.0         05CG81    695  C~0X5e      
2007 02  14.46068  09 29 58.12   +17 18 00.3   22.7r 05CG81    568  C~0X5e      
2007 02  14.49837  09 29 57.94   +17 18 01.3   22.8r 05CG81    568  C~0X5e      
2007 02  14.53158  09 29 57.79   +17 18 02.2   22.6r 05CG81    568  C~0X5e      
2007 02  15.47535  09 29 53.51   +17 18 28.3         05CG81    568  C~0X5e      
2007 02  21.36263  09 29 26.88   +17 21 07.1   22.4R 05CG81    675  C~0X5e      
2007 02  21.41444  09 29 26.64   +17 21 08.5   22.4R 05CG81    675  C~0X5e      
2007 05  15.17425  09 26 34.26   +17 39 21.9   22.2r 05CG81    695  C~0X5e      
2007 05  17.20725  09 26 36.98   +17 39 14.2   22.3r 05CG81    695  C~0X5e      
2010 06  01.26999  09 43 31.570  +18 07 41.87  23.0G 05CG81    F51  C~343m      
2011 01  27.56923  09 53 55.295  +17 47 47.32  22.1G 05CG81    F51  C~343m      
2011 05  29.26099  09 48 58.325  +18 17 25.94  22.8G 05CG81    F51  C~343m      
2011 05  29.26573  09 48 58.336  +18 17 25.83  22.7G 05CG81    F51  C~343m      
2011 05  29.27050  09 48 58.339  +18 17 25.50  22.9G 05CG81    F51  C~343m      
2011 05  29.27532  09 48 58.356  +18 17 25.57  23.0G 05CG81    F51  C~343m      
2011 10  29.61417  10 01 15.508  +17 28 36.39  22.4G 05CG81    F51  C~343m      
2012 02  15.35013  09 58 18.976  +18 05 32.47  22.5G 05CG81    F51  C~343m      
2012 02  15.36399  09 58 18.893  +18 05 32.68  22.9G 05CG81    F51  C~343m      
2012 02  15.37786  09 58 18.838  +18 05 33.58  22.6G 05CG81    F51  C~343m      
2012 02  15.39182  09 58 18.746  +18 05 33.89  22.5G 05CG81    F51  C~343m      
2013 03  13.24147  10 02 10.34   +18 25 42.5   22.2R 05CG81    695  C~0udE      
2013 03  14.19789  10 02 06.41   +18 26 05.3         05CG81    695  C~0udE      
2013 03  14.34815  10 02 05.80   +18 26 08.9         05CG81    695  C~0udE      
2014 05  23.25973  10 05 53.106  +18 42 24.40  22.5G 05CG81    F51  C~343m      
2014 05  23.27256  10 05 53.133  +18 42 24.47  22.5G 05CG81    F51  C~343m      
2014 05  23.28538  10 05 53.142  +18 42 24.23  23.3G 05CG81    F51  C~343m      
2014 05  23.29829  10 05 53.150  +18 42 24.38  23.1G 05CG81    F51  C~343m      
2015 01  23.44178  10 17 37.122  +18 14 10.26  22.2G 05CG81    F51  C~343m      
2015 01  23.45372  10 17 37.080  +18 14 10.67  22.5G 05CG81    F51  C~343m      
2015 01  23.46561  10 17 37.038  +18 14 10.99  22.4G 05CG81    F51  C~343n      
2015 01  23.47767  10 17 36.989  +18 14 11.69  22.8G 05CG81    F51  C~343n      
2015 01  25.42473  10 17 29.340  +18 15 15.80  22.6G 05CG81    F51  C~343n      
2015 01  25.43662  10 17 29.306  +18 15 16.14  22.8G 05CG81    F51  C~343n      
2015 01  25.44855  10 17 29.242  +18 15 16.68  22.7G 05CG81    F51  C~343n      
2015 01  25.46046  10 17 29.190  +18 15 16.81  22.6G 05CG81    F51  C~343n      
2015 02  22.49814  10 15 25.625  +18 30 35.09  21.5G 05CG81    F51  C~343n      
2015 04  07.24579  10 12 29.822  +18 47 45.34  23.5G 05CG81    F51  C~343n      
2015 04  09.24750  10 12 24.088  +18 48 12.92  23.0G 05CG81    F51  C~343n      
2016 01  14.45826  10 24 08.106  +18 14 36.44  21.9G 05CG81    F51  C~343n      
2016 01  14.47141  10 24 08.066  +18 14 36.94  22.0G 05CG81    F51  C~343n      
2016 01  14.49766  10 24 07.976  +18 14 37.32  22.0G 05CG81    F51  C~343n      
2016 02  03.41448  10 22 52.116  +18 25 43.56  22.5G 05CG81    F51  C~343n      
2016 02  05.38971  10 22 43.626  +18 26 50.79  22.7G 05CG81    F51  C~343n      
2016 02  05.40270  10 22 43.540  +18 26 51.39  22.8G 05CG81    F51  C~343n      
2016 02  05.41568  10 22 43.474  +18 26 51.25  22.3G 05CG81    F51  C~343n      
2016 02  05.42878  10 22 43.448  +18 26 51.93  23.5G 05CG81    F51  C~343n      
2016 02  06.56025  10 22 38.495  +18 27 29.99  21.5G 05CG81    F51  C~343n      
2016 02  06.56155  10 22 38.504  +18 27 30.39  22.0G 05CG81    F51  C~343n      
2016 02  06.57294  10 22 38.445  +18 27 30.68  22.3G 05CG81    F51  C~343n      
2016 02  06.57423  10 22 38.431  +18 27 30.90  22.6G 05CG81    F51  C~343n      
2016 02  06.58568  10 22 38.392  +18 27 31.23  22.8G 05CG81    F51  C~343n      
2016 02  06.58697  10 22 38.382  +18 27 31.13  22.4G 05CG81    F51  C~343n      
2016 02  06.59841  10 22 38.337  +18 27 31.60  22.8G 05CG81    F51  C~343n      
2016 02  06.59973  10 22 38.334  +18 27 31.30  22.6G 05CG81    F51  C~343n      
2016 04  03.24568  10 18 36.945  +18 53 08.41  23.1G 05CG81    F51  C~343n      
2016 04  03.25731  10 18 36.886  +18 53 08.63  22.7G 05CG81    F51  C~343n      
2016 04  03.26901  10 18 36.854  +18 53 08.65  22.8G 05CG81    F51  C~343n      
2016 04  03.28074  10 18 36.821  +18 53 08.90  22.4G 05CG81    F51  C~343n      
2017 01  04.48258  10 30 34.034  +18 14 30.89  23.1G 05CG81    F51  C~343n      
2017 01  04.49419  10 30 33.993  +18 14 31.12  22.9G 05CG81    F51  C~343n      
2017 01  04.51755  10 30 33.945  +18 14 31.85  22.8G 05CG81    F51  C~343n      
2017 01  31.56969  10 29 02.381  +18 29 28.43  22.7G 05CG81    F51  C~343n      
2017 02  24.50902  10 27 15.623  +18 42 55.22  22.6G 05CG81    F51  C~343n      
2017 02  24.51095  10 27 15.609  +18 42 55.54  21.9G 05CG81    F51  C~343n      
2017 02  24.52211  10 27 15.518  +18 42 55.57  22.6G 05CG81    F51  C~343n      
2017 02  24.52403  10 27 15.543  +18 42 55.74  22.1G 05CG81    F51  C~343n      
2017 02  24.53721  10 27 15.486  +18 42 56.24  22.6G 05CG81    F51  C~343n      
2017 02  24.55052  10 27 15.430  +18 42 56.53  21.8G 05CG81    F51  C~343n      
2017 03  28.24759  10 24 58.965  +18 56 48.92  22.9G 05CG81    F51  C~343n      
2017 03  28.25795  10 24 58.937  +18 56 49.09  22.7G 05CG81    F51  C~343n      
2017 03  28.26820  10 24 58.894  +18 56 49.21  22.9G 05CG81    F51  C~343n      
2017 03  28.27858  10 24 58.854  +18 56 49.44  22.9G 05CG81    F51  C~343n      
2017 12  22.57332  10 36 58.599  +18 12 18.27  23.0G 05CG81    F51  C~343n      
2018 03  06.30441  10 32 36.116  +18 52 23.66  22.1G 05CG81    F51  C~343n      
2018 03  06.31621  10 32 36.086  +18 52 24.45  22.9G 05CG81    F51  C~343n      
2018 03  06.33983  10 32 35.954  +18 52 25.40  22.8G 05CG81    F51  C~343n      

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    -0.52       0.00     0.00
     2   0.0002      0.00    -0.46       0.00    -0.03
     3   0.0003      0.00    -0.55       0.00     0.01
     4   0.0138      0.00    -0.09       0.00    -0.07
     5   0.0818      0.00    -0.11       0.00    -0.30
     6   0.0818      0.00    -0.06       0.00    -0.32
     7   0.0818      0.00    -0.07       0.00    -0.27
     8   0.1643      0.00     0.21       0.00    -0.03
     9   0.1643      0.00     0.29       0.00    -0.05
    10   0.1644      0.00     0.41       0.00    -0.11
    11   0.9884      0.00     0.31       0.00     0.38
    12   0.9885      0.00     0.29       0.00     0.55
    13   0.9886      0.00     0.30       0.00     0.47
    14   1.7829      0.00     0.16       0.00    -0.09
    15   1.7856      0.00     0.07       0.00    -0.06
    16   2.0100      0.00     0.07       0.00     0.20
    17   2.0101      0.00    -0.00       0.00     0.16
    18   2.0102      0.00     0.06       0.00     0.15
    19   2.0128      0.00     0.40       0.00     0.30
    20   2.0289      0.00    -0.02       0.00    -0.00
    21   2.0290      0.00    -0.10       0.00     0.03
    22   2.2556      0.00    -0.16       0.00    -0.23
    23   2.2612      0.00    -0.19       0.00    -0.01
    24   5.3031      0.00     0.17       0.00     0.11
    25   5.9610      0.00     0.06       0.00     0.02
    26   6.2942      0.00    -0.09       0.00    -0.01
    27   6.2942      0.00    -0.06       0.00    -0.06
    28   6.2942      0.00    -0.15       0.00    -0.34
    29   6.2942      0.00    -0.04       0.00    -0.22
    30   6.7140      0.00    -0.19       0.00     0.02
    31   7.0117      0.00     0.12       0.00    -0.13
    32   7.0118      0.00    -0.15       0.00    -0.34
    33   7.0118      0.00    -0.00       0.00     0.13
    34   7.0119      0.00    -0.40       0.00     0.02
    35   8.0847      0.00     0.11       0.00     0.08
    36   8.0873      0.00     0.05       0.00    -0.00
    37   8.0877      0.00     0.27       0.00     0.04
    38   9.2784      0.00    -0.23       0.00    -0.22
    39   9.2785      0.00    -0.02       0.00    -0.03
    40   9.2785      0.00    -0.09       0.00    -0.14
    41   9.2785      0.00    -0.17       0.00     0.14
    42   9.9497      0.00    -0.08       0.00    -0.06
    43   9.9497      0.00    -0.00       0.00    -0.05
    44   9.9498      0.00     0.07       0.00    -0.12
    45   9.9498      0.00     0.06       0.00     0.18
    46   9.9551      0.00    -0.10       0.00     0.00
    47   9.9552      0.00     0.12       0.00    -0.05
    48   9.9552      0.00    -0.12       0.00     0.09
    49   9.9552      0.00    -0.18       0.00    -0.18
    50  10.0320      0.00     0.33       0.00    -0.01
    51  10.1518      0.00     0.31       0.00    -0.31
    52  10.1573      0.00     0.16       0.00     0.25
    53  10.9244      0.00    -0.02       0.00    -0.02
    54  10.9245      0.00     0.04       0.00     0.05
    55  10.9245      0.00    -0.00       0.00    -0.41
    56  10.9791      0.00     0.12       0.00     0.09
    57  10.9845      0.00     0.22       0.00     0.20
    58  10.9845      0.00    -0.21       0.00     0.35
    59  10.9845      0.00    -0.34       0.00    -0.23
    60  10.9846      0.00     0.13       0.00     0.00
    61  10.9877      0.00    -0.09       0.00    -0.32
    62  10.9877      0.00     0.13       0.00     0.03
    63  10.9877      0.00     0.01       0.00    -0.06
    64  10.9877      0.00    -0.12       0.00     0.12
    65  10.9878      0.00     0.06       0.00     0.06
    66  10.9878      0.00    -0.00       0.00    -0.08
    67  10.9878      0.00     0.08       0.00     0.00
    68  10.9878      0.00     0.13       0.00    -0.34
    69  11.1429      0.00     0.14       0.00     0.09
    70  11.1429      0.00    -0.17       0.00     0.12
    71  11.1429      0.00    -0.06       0.00    -0.04
    72  11.1430      0.00     0.03       0.00     0.02
    73  11.8992      0.00     0.11       0.00     0.20
    74  11.8992      0.00    -0.07       0.00     0.07
    75  11.8993      0.00     0.11       0.00     0.09
    76  11.9733      0.00     0.06       0.00    -0.03
    77  12.0389      0.00     0.05       0.00    -0.06
    78  12.0389      0.00    -0.02       0.00     0.20
    79  12.0389      0.00    -0.60       0.00    -0.12
    80  12.0389      0.00    -0.09       0.00    -0.01
    81  12.0390      0.00    -0.02       0.00     0.08
    82  12.0390      0.00     0.08       0.00    -0.05
    83  12.1258      0.00    -0.12       0.00     0.19
    84  12.1258      0.00     0.05       0.00     0.15
    85  12.1258      0.00    -0.02       0.00     0.07
    86  12.1259      0.00    -0.03       0.00     0.10
    87  12.8631      0.00     0.03       0.00     0.08
    88  13.0650      0.00    -0.12       0.00    -0.36
    89  13.0650      0.00     0.25       0.00     0.08
    90  13.0651      0.00    -0.09       0.00     0.33

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.

05CG81    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        53.817    53.817    53.817
ecceobj         0.235     0.235     0.235
incobj         26.168    26.168    26.168
qmin           40.291    40.272    40.293
qmax           68.117    68.374    68.419
amean          53.930    53.942    53.999
amin           53.415    53.420    53.440
amax           54.553    54.621    54.641
emean           0.235     0.235     0.236
emin            0.219     0.219     0.220
emax            0.250     0.252     0.252
imean          24.830    24.830    24.838
imin           24.513    24.512    24.514
imax           25.296    25.283    25.289
excite_mean     0.481     0.481     0.482
fracstop        1.000     1.000     1.000
cjmean          2.920     2.920     2.920

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       176.0     175.7     175.4
kozaiamp        180.0     180.0     180.0