Orbit Fit and Astrometric record for 13CD223

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: 13CD223   
# Created Fri May 29 01:11:09 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   90 observations of   90
# Arc:  13.13y
# First observation: 2005/01/19
#  Last observation: 2018/03/07
# Chi-squared of fit:    60.44 DOF:  174 RMS:  0.14
# Min/Max residuals:    -0.44    0.55
# Exact a, adot, b, bdot, g, gdot:
  1.252859E-05  1.708302E-02  1.706793E-07  5.971681E-04  2.129405E-02  1.284400E-03
# Covariance matrix:
  2.2500E-13 -4.8220E-14  3.0285E-15 -1.2384E-15 -2.2068E-14 -1.4600E-13
 -4.8220E-14  1.7353E-14 -1.1694E-15  5.5685E-16  1.7746E-14  6.6467E-14
  3.0285E-15 -1.1694E-15  1.4458E-13 -1.3764E-14  1.3061E-16 -5.0342E-15
 -1.2384E-15  5.5685E-16 -1.3764E-14  1.4927E-15  5.3803E-16  2.3390E-15
 -2.2068E-14  1.7746E-14  1.3061E-16  5.3803E-16  6.8384E-14  6.9557E-14
 -1.4600E-13  6.6467E-14 -5.0342E-15  2.3390E-15  6.9557E-14  2.7866E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.959105  141.194332    0.367913    0.078777   -0.906773  2453389.944157
# Heliocentric elements and errors
Epoch:              2453390.5000  =  2005/01/20
Mean Anomaly:          159.48167 +/-     0.010
Argument of Peri:      260.72035 +/-     0.006
Long of Asc Node:       73.65143 +/-     0.001
Inclination:             5.27820 +/-     0.000
Eccentricity:         0.21963472 +/-    0.0000
Semi-Major Axis:     39.55857409 +/-    0.0012
Time of Perihelion: 2413131.0669 +/-       3.1
Perihelion:          30.87013779 +/-    0.0014
Aphelion:            48.24701038 +/-    0.0018
Period (y)              248.8108 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.94235790 +/-    0.0005
Ecliptic Y           30.17650469 +/-    0.0004
Ecliptic Z            4.05958652 +/-    0.0001
Ecliptic XDOT        -0.00149989 +/-    0.0000
Ecliptic YDOT        -0.00161989 +/-    0.0000
Ecliptic ZDOT         0.00009084 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.87312142 +/-    0.0004
Geocenter to KBO     46.96146493 +/-    0.0006
# Hcoef:  5.74

The following table shows the complete astrometric record for 13CD223. 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 (13CD223) followed by the observatory code and reference code for the source of the astrometry.

2005 01  19.443414 09 41 01.78   +19 07 36.0   22.4V 13CD223   645  C~2aHl      
2005 01  19.444243 09 41 01.78   +19 07 36.0         13CD223   645  C~2aHl      
2005 01  19.446731 09 41 01.77   +19 07 36.1         13CD223   645  C~2aHl      
2005 02  04.238606 09 39 54.50   +19 13 38.8   22.1V 13CD223   645  C~2aHl      
2005 02  04.239435 09 39 54.50   +19 13 38.9   21.6V 13CD223   645  C~2aHl      
2005 02  04.241923 09 39 54.49   +19 13 39.1   22.9V 13CD223   645  C~2aHl      
2010 05  31.28333  09 55 03.849  +17 59 25.68  22.7G 13CD223   F51  C~346B      
2010 06  01.27052  09 55 05.558  +17 59 10.98  23.7G 13CD223   F51  C~346B      
2010 12  31.66009  10 05 25.234  +17 11 59.69  22.0G 13CD223   F51  C~346C      
2011 01  30.54073  10 03 42.272  +17 23 13.51  22.7w 13CD223   F51  C~1w3t      
2011 01  30.55593  10 03 42.212  +17 23 13.79  22.8w 13CD223   F51  C~1w3t      
2011 01  30.57329  10 03 42.145  +17 23 14.13  22.6w 13CD223   F51  C~1w3t      
2011 01  30.58840  10 03 42.083  +17 23 14.69  22.8w 13CD223   F51  C~1w3t      
2011 02  03.43857  10 03 26.088  +17 24 47.85  21.4G 13CD223   F51  C~346C      
2011 05  29.26496  09 58 46.573  +17 42 03.17  22.9w 13CD223   F51  C~1w3t      
2011 05  29.26972  09 58 46.602  +17 42 03.28  22.2G 13CD223   F51  C~346C      
2011 05  29.27454  09 58 46.583  +17 42 03.16  22.9G 13CD223   F51  C~346C      
2011 10  29.61482  10 09 14.685  +16 45 38.41  22.7w 13CD223   F51  C~1w3t      
2011 10  29.62536  10 09 14.707  +16 45 38.34  22.6w 13CD223   F51  C~1w3t      
2012 02  01.57109  10 07 24.888  +17 04 58.13  22.0g 13CD223   F51  C~1w3t      
2012 02  04.54146  10 07 12.579  +17 06 10.87  22.5G 13CD223   F51  C~346C      
2012 02  15.35870  10 06 26.407  +17 10 33.55  22.8w 13CD223   F51  C~1w3t      
2012 02  15.37255  10 06 26.342  +17 10 33.79  22.8w 13CD223   F51  C~1w3t      
2012 02  15.38641  10 06 26.275  +17 10 34.17  22.9w 13CD223   F51  C~1w3t      
2012 02  15.40044  10 06 26.213  +17 10 34.44  22.9w 13CD223   F51  C~1w3t      
2013 02  09.37868  10 10 38.513  +16 49 14.25  22.3w 13CD223   F51  C~1w3t      
2013 02  09.39363  10 10 38.445  +16 49 14.63  22.6w 13CD223   F51  C~1w3t      
2013 02  09.40872  10 10 38.391  +16 49 14.78  22.2w 13CD223   F51  C~1w3t      
2013 02  09.42385  10 10 38.322  +16 49 15.32  22.4w 13CD223   F51  C~1w3t      
2014 02  10.40458  10 14 24.126  +16 30 03.98  21.6i 13CD223   F51  C~1w3t      
2014 02  10.42835  10 14 24.012  +16 30 04.61  21.5i 13CD223   F51  C~1w3t      
2014 05  16.29149  10 09 53.601  +16 48 47.51  21.7G 13CD223   F51  C~346C      
2014 05  23.26038  10 09 56.373  +16 47 44.91  22.5G 13CD223   F51  C~346C      
2014 05  23.27322  10 09 56.394  +16 47 45.03  22.6G 13CD223   F51  C~346C      
2014 05  23.28604  10 09 56.410  +16 47 44.74  22.4G 13CD223   F51  C~346C      
2014 05  23.29895  10 09 56.411  +16 47 44.64  22.3G 13CD223   F51  C~346C      
2014 11  29.55806  10 21 07.011  +15 47 42.27  22.2G 13CD223   F51  C~346C      
2014 11  29.57113  10 21 07.006  +15 47 42.18  22.6G 13CD223   F51  C~346C      
2014 11  29.58412  10 21 07.042  +15 47 42.27  22.7G 13CD223   F51  C~346C      
2014 11  29.59712  10 21 07.039  +15 47 42.46  22.7G 13CD223   F51  C~346C      
2015 02  01.44797  10 18 50.036  +16 06 30.01  22.5G 13CD223   F51  C~346C      
2015 02  16.33466  10 17 48.222  +16 12 39.83  22.0G 13CD223   F51  C~346C      
2015 02  16.34720  10 17 48.181  +16 12 40.21  22.2G 13CD223   F51  C~346C      
2015 02  16.35970  10 17 48.125  +16 12 40.37  22.2G 13CD223   F51  C~346C      
2015 02  16.37228  10 17 48.064  +16 12 40.84  22.5G 13CD223   F51  C~346C      
2015 04  09.26078  10 14 30.385  +16 28 47.96  21.8G 13CD223   F51  C~346C      
2016 01  08.47402  10 23 59.250  +15 37 04.48  21.0G 13CD223   F51  C~346C      
2016 01  08.48565  10 23 59.230  +15 37 04.96  22.1G 13CD223   F51  C~346C      
2016 01  08.49725  10 23 59.186  +15 37 05.34  22.6G 13CD223   F51  C~346C      
2016 01  08.50890  10 23 59.151  +15 37 05.42  22.3G 13CD223   F51  C~346C      
2016 01  09.48680  10 23 56.440  +15 37 25.94  22.2G 13CD223   F51  C~346C      
2016 01  09.49842  10 23 56.418  +15 37 26.13  22.6G 13CD223   F51  C~346C      
2016 01  09.51003  10 23 56.401  +15 37 26.47  22.5G 13CD223   F51  C~346C      
2016 01  09.52169  10 23 56.357  +15 37 26.85  22.9G 13CD223   F51  C~346C      
2016 02  06.57423  10 22 17.466  +15 48 32.36  22.5G 13CD223   F51  C~346C      
2016 02  06.58697  10 22 17.425  +15 48 32.54  22.0G 13CD223   F51  C~346C      
2016 02  06.59973  10 22 17.360  +15 48 33.00  22.0G 13CD223   F51  C~346C      
2016 03  06.32685  10 20 15.936  +16 00 03.14  22.3G 13CD223   F51  C~346C      
2016 03  06.33855  10 20 15.885  +16 00 03.20  22.1G 13CD223   F51  C~346C      
2016 03  06.35020  10 20 15.824  +16 00 03.88  22.4G 13CD223   F51  C~346C      
2016 03  25.45311  10 19 01.530  +16 06 06.40  22.9G 13CD223   F51  C~346C      
2016 03  28.27153  10 18 51.766  +16 06 49.73  22.8G 13CD223   F51  C~346C      
2016 03  28.28455  10 18 51.716  +16 06 50.09  22.7G 13CD223   F51  C~346C      
2016 03  28.29766  10 18 51.674  +16 06 50.21  22.9G 13CD223   F51  C~346C      
2016 03  28.31077  10 18 51.650  +16 06 50.73  22.7G 13CD223   F51  C~346C      
2016 04  03.24632  10 18 32.382  +16 08 11.65  23.0G 13CD223   F51  C~346C      
2016 04  03.25796  10 18 32.339  +16 08 11.89  22.5G 13CD223   F51  C~346C      
2016 04  03.26966  10 18 32.300  +16 08 12.20  22.1G 13CD223   F51  C~346C      
2016 04  03.28140  10 18 32.271  +16 08 12.15  22.4G 13CD223   F51  C~346C      
2016 05  05.31005  10 17 27.114  +16 11 08.25  22.5G 13CD223   F51  C~346C      
2016 05  05.32219  10 17 27.098  +16 11 08.45  22.9G 13CD223   F51  C~346C      
2016 05  05.34609  10 17 27.080  +16 11 08.28  22.5G 13CD223   F51  C~346C      
2017 02  21.38397  10 24 58.571  +15 34 49.80  23.4G 13CD223   F51  C~346C      
2017 02  21.39374  10 24 58.529  +15 34 50.37  22.2G 13CD223   F51  C~346C      
2017 02  21.41326  10 24 58.426  +15 34 50.82  22.1G 13CD223   F51  C~346C      
2017 03  05.36228  10 24 07.671  +15 39 31.47  22.7G 13CD223   F51  C~346C      
2017 03  19.42336  10 23 11.010  +15 44 20.50  22.7G 13CD223   F51  C~346C      
2018 01  15.47052  10 31 06.136  +14 59 10.91  22.4G 13CD223   F51  C~346C      
2018 01  15.48284  10 31 06.092  +14 59 11.18  22.4G 13CD223   F51  C~346C      
2018 01  15.49520  10 31 06.056  +14 59 11.51  22.3G 13CD223   F51  C~346C      
2018 01  15.50763  10 31 06.026  +14 59 11.91  22.3G 13CD223   F51  C~346C      
2018 01  26.59676  10 30 28.823  +15 03 33.78  22.1G 13CD223   F51  C~346C      
2018 02  12.40842  10 29 22.968  +15 10 36.69  22.4G 13CD223   F51  C~346C      
2018 02  12.42012  10 29 22.920  +15 10 37.05  22.3G 13CD223   F51  C~346C      
2018 02  12.43183  10 29 22.868  +15 10 37.39  22.6G 13CD223   F51  C~346C      
2018 02  12.44366  10 29 22.816  +15 10 37.53  22.2G 13CD223   F51  C~346C      
2018 03  07.29233  10 27 46.271  +15 19 51.84  23.1G 13CD223   F51  C~346C      
2018 03  07.30272  10 27 46.224  +15 19 52.09  22.4G 13CD223   F51  C~346C      
2018 03  07.31305  10 27 46.173  +15 19 52.39  22.8G 13CD223   F51  C~346C      
2018 03  07.32338  10 27 46.142  +15 19 52.62  22.1G 13CD223   F51  C~346C      

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     0.05       0.00     0.04
  2   0.0000      0.00     0.10       0.00     0.02
  3   0.0000      0.00     0.11       0.00     0.07
  4   0.0432      0.00    -0.13       0.00    -0.08
  5   0.0432      0.00    -0.07       0.00     0.00
  6   0.0433      0.00    -0.06       0.00     0.14
  7   5.3603      0.00    -0.17       0.00     0.00
  8   5.3630      0.00     0.42       0.00     0.06
  9   5.9472      0.00    -0.39       0.00    -0.08
 10   6.0290      0.00     0.03       0.00     0.12
 11   6.0291      0.00     0.08       0.00     0.03
 12   6.0291      0.00     0.16       0.00    -0.05
 13   6.0291      0.00     0.17       0.00     0.15
 14   6.0397      0.00    -0.26       0.00    -0.25
 15   6.3541      0.00    -0.08       0.00    -0.10
 16   6.3541      0.00     0.26       0.00     0.07
 17   6.3541      0.00    -0.12       0.00     0.02
 18   6.7739      0.00    -0.19       0.00    -0.06
 19   6.7739      0.00    -0.26       0.00    -0.06
 20   7.0339      0.00     0.19       0.00    -0.36
 21   7.0420      0.00    -0.02       0.00    -0.26
 22   7.0716      0.00     0.05       0.00     0.17
 23   7.0717      0.00    -0.01       0.00     0.08
 24   7.0717      0.00    -0.10       0.00     0.13
 25   7.0718      0.00    -0.10       0.00     0.06
 26   8.0573      0.00     0.03       0.00    -0.00
 27   8.0574      0.00    -0.02       0.00     0.01
 28   8.0574      0.00     0.15       0.00    -0.21
 29   8.0574      0.00     0.10       0.00    -0.05
 30   9.0594      0.00    -0.01       0.00     0.02
 31   9.0595      0.00    -0.18       0.00     0.06
 32   9.3192      0.00     0.17       0.00     0.55
 33   9.3383      0.00    -0.14       0.00    -0.16
 34   9.3383      0.00     0.06       0.00     0.10
 35   9.3384      0.00     0.18       0.00    -0.05
 36   9.3384      0.00     0.07       0.00    -0.02
 37   9.8593      0.00    -0.33       0.00     0.02
 38   9.8594      0.00    -0.44       0.00    -0.15
 39   9.8594      0.00     0.06       0.00    -0.14
 40   9.8594      0.00    -0.02       0.00    -0.03
 41  10.0342      0.00    -0.05       0.00    -0.01
 42  10.0750      0.00    -0.06       0.00    -0.05
 43  10.0750      0.00     0.14       0.00     0.02
 44  10.0751      0.00     0.12       0.00    -0.13
 45  10.0751      0.00     0.02       0.00     0.03
 46  10.2172      0.00    -0.04       0.00     0.16
 47  10.9679      0.00     0.04       0.00    -0.20
 48  10.9679      0.00     0.23       0.00     0.03
 49  10.9680      0.00     0.06       0.00     0.17
 50  10.9680      0.00     0.02       0.00     0.00
 51  10.9707      0.00    -0.05       0.00    -0.06
 52  10.9707      0.00     0.12       0.00    -0.12
 53  10.9708      0.00     0.37       0.00    -0.02
 54  10.9708      0.00     0.21       0.00     0.11
 55  11.0476      0.00     0.03       0.00     0.02
 56  11.0476      0.00     0.21       0.00    -0.11
 57  11.0477      0.00     0.02       0.00     0.03
 58  11.1263      0.00    -0.01       0.00     0.04
 59  11.1263      0.00    -0.04       0.00    -0.15
 60  11.1264      0.00    -0.21       0.00     0.27
 61  11.1787      0.00     0.10       0.00    -0.23
 62  11.1864      0.00    -0.07       0.00    -0.22
 63  11.1864      0.00    -0.14       0.00    -0.06
 64  11.1865      0.00    -0.09       0.00    -0.13
 65  11.1865      0.00     0.23       0.00     0.19
 66  11.2027      0.00    -0.05       0.00    -0.10
 67  11.2028      0.00    -0.14       0.00    -0.01
 68  11.2028      0.00    -0.18       0.00     0.15
 69  11.2028      0.00    -0.06       0.00    -0.04
 70  11.2905      0.00    -0.04       0.00    -0.10
 71  11.2906      0.00    -0.11       0.00     0.13
 72  11.2906      0.00    -0.04       0.00     0.00
 73  12.0902      0.00     0.05       0.00     0.12
 74  12.0902      0.00     0.05       0.00     0.45
 75  12.0903      0.00    -0.22       0.00     0.42
 76  12.1230      0.00     0.16       0.00    -0.04
 77  12.1615      0.00    -0.11       0.00    -0.14
 78  12.9884      0.00     0.04       0.00    -0.03
 79  12.9885      0.00    -0.05       0.00    -0.04
 80  12.9885      0.00    -0.01       0.00     0.01
 81  12.9885      0.00     0.13       0.00     0.13
 82  13.0189      0.00     0.04       0.00     0.07
 83  13.0649      0.00    -0.02       0.00    -0.08
 84  13.0650      0.00    -0.00       0.00    -0.02
 85  13.0650      0.00    -0.04       0.00     0.02
 86  13.0650      0.00    -0.07       0.00    -0.14
 87  13.1276      0.00    -0.01       0.00    -0.05
 88  13.1276      0.00    -0.06       0.00    -0.03
 89  13.1276      0.00    -0.17       0.00     0.03
 90  13.1277      0.00     0.02       0.00     0.03

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.

13CD223    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.403    39.403    39.403
ecceobj         0.226     0.226     0.226
incobj          5.270     5.270     5.270
qmin           29.846    29.846    29.846
qmax           49.349    49.349    49.349
amean          39.455    39.455    39.455
amin           39.104    39.105    39.104
amax           39.880    39.881    39.880
emean           0.221     0.221     0.221
emin            0.202     0.202     0.202
emax            0.240     0.240     0.240
imean           3.909     3.909     3.909
imin            2.791     2.791     2.791
imax            5.143     5.144     5.143
excite_mean     0.232     0.232     0.232
fracstop        1.000     1.000     1.000
cjmean          2.990     2.990     2.990

libcent 0       179.6     179.6     179.6
libamp  0        27.5      27.5      27.5
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       184.1     184.1     184.1
kozaiamp        180.0     180.0     180.0