Orbit Fit and Astrometric record for 05EX318

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: 05EX318   
# Created Wed Feb 20 02:09:02 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   91 observations of   91
# Arc:  16.09y
# First observation: 2002/03/12
#  Last observation: 2018/04/13
# Chi-squared of fit:   111.51 DOF:  176 RMS:  0.20
# Min/Max residuals:    -0.53    0.99
# Exact a, adot, b, bdot, g, gdot:
  1.936630E-05  3.797473E-02  1.465609E-06  1.409658E-03  3.189419E-02  5.057096E-03
# Covariance matrix:
  3.9460E-13 -6.8405E-14  5.7636E-15 -1.8810E-15 -4.0011E-14 -7.4400E-14
 -6.8405E-14  1.7894E-14 -1.6971E-15  6.1214E-16  1.9629E-14  2.4129E-14
  5.7636E-15 -1.6971E-15  2.3488E-13 -1.8390E-14 -3.1549E-16 -2.5486E-15
 -1.8810E-15  6.1214E-16 -1.8390E-14  1.5594E-15  7.1355E-16  9.0355E-16
 -4.0011E-14  1.9629E-14 -3.1549E-16  7.1355E-16  8.4401E-14  2.7356E-14
 -7.4400E-14  2.4129E-14 -2.5486E-15  9.0355E-16  2.7356E-14  3.5636E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.496596  171.258894   -0.009448    0.112360   -0.987440  2452345.770501
# Heliocentric elements and errors
Epoch:              2452346.5000  =  2002/03/13
Mean Anomaly:           27.78807 +/-     0.003
Argument of Peri:       27.53717 +/-     0.005
Long of Asc Node:      100.06284 +/-     0.001
Inclination:             6.64918 +/-     0.000
Eccentricity:         0.22804264 +/-    0.0000
Semi-Major Axis:     39.73190137 +/-    0.0017
Time of Perihelion: 2445285.5475 +/-       0.9
Perihelion:          30.67133359 +/-    0.0016
Aphelion:            48.79246916 +/-    0.0023
Period (y)              250.4478 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -31.77335374 +/-    0.0003
Ecliptic Y            4.88085295 +/-    0.0000
Ecliptic Z            3.54754924 +/-    0.0000
Ecliptic XDOT        -0.00091661 +/-    0.0000
Ecliptic YDOT        -0.00315955 +/-    0.0000
Ecliptic ZDOT         0.00016956 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.34112985 +/-    0.0003
Geocenter to KBO     31.35362689 +/-    0.0003
# Hcoef:  6.99

The following table shows the complete astrometric record for 05EX318. 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 (05EX318) followed by the observatory code and reference code for the source of the astrometry.

2002 03  12.269758 11 38 14.31   +09 25 53.7   22.0V 05EX318   645  C~1vVO      
2002 03  12.270587 11 38 14.30   +09 25 53.7   21.4V 05EX318   645  C~1vVO      
2002 03  12.273075 11 38 14.29   +09 25 53.8   22.8V 05EX318   645  C~1vVO      
2005 03  08.42333  12 02 44.30   +06 59 58.4   21.8R 05EX318   675  Cn3361      
2005 03  08.47520  12 02 44.00   +07 00 00.6   21.6R 05EX318   675  Cn3361      
2005 03  10.38807  12 02 33.50   +07 01 14.1   21.7R 05EX318   675  Cn3361      
2005 03  10.43443  12 02 33.26   +07 01 15.9   21.7R 05EX318   675  Cn3361      
2010 02  24.58021  12 41 36.602  +02 55 56.73  22.0G 05EX318   F51  C~2rXi      
2010 06  24.27653  12 34 02.520  +03 34 57.45  22.3G 05EX318   F51  C~2rXi      
2010 06  30.29771  12 34 06.934  +03 33 11.42  22.4G 05EX318   F51  C~2rXi      
2010 07  01.31187  12 34 08.050  +03 32 51.30  22.3G 05EX318   F51  C~2rXi      
2011 03  12.57758  12 47 38.994  +02 19 05.02  21.8G 05EX318   F51  C~2rXi      
2011 04  01.41723  12 45 54.717  +02 30 56.73  22.4G 05EX318   F51  C~2rXi      
2012 02  28.51812  12 55 44.503  +01 26 01.65  22.5w 05EX318   F51  C~1vVO      
2012 02  28.53251  12 55 44.451  +01 26 02.18  22.3w 05EX318   F51  C~1vVO      
2012 02  28.54692  12 55 44.400  +01 26 02.84  22.4w 05EX318   F51  C~1vVO      
2012 02  28.56136  12 55 44.316  +01 26 03.06  22.5w 05EX318   F51  C~1vVO      
2012 04  12.34122  12 52 03.355  +01 51 21.01  22.0w 05EX318   F51  C~1vVO      
2012 04  12.35516  12 52 03.273  +01 51 21.39  22.3w 05EX318   F51  C~1vVO      
2012 04  12.36910  12 52 03.196  +01 51 21.88  22.1w 05EX318   F51  C~1vVO      
2012 04  12.38313  12 52 03.127  +01 51 22.28  22.1w 05EX318   F51  C~1vVO      
2012 04  15.48813  12 51 46.689  +01 52 57.41  21.9G 05EX318   F51  C~2rXi      
2012 04  23.45723  12 51 05.717  +01 56 44.27  22.4G 05EX318   F51  C~2rXi      
2012 04  28.32555  12 50 41.920  +01 58 48.43  22.1G 05EX318   F51  C~2rXi      
2012 04  28.33759  12 50 41.879  +01 58 48.81  21.7G 05EX318   F51  C~2rXi      
2013 03  19.49656  13 01 17.022  +00 52 06.81  22.4w 05EX318   F51  C~1vVO      
2013 03  19.51197  13 01 16.946  +00 52 07.42  22.5w 05EX318   F51  C~1vVO      
2013 03  19.52740  13 01 16.870  +00 52 07.91  22.5w 05EX318   F51  C~1vVO      
2013 03  19.54283  13 01 16.789  +00 52 08.86  22.2w 05EX318   F51  C~1vVO      
2013 04  11.37449  12 59 16.032  +01 05 08.15  22.3w 05EX318   F51  C~1vVO      
2013 04  11.38815  12 59 15.960  +01 05 08.77  22.3w 05EX318   F51  C~1vVO      
2013 04  11.40185  12 59 15.883  +01 05 08.91  22.1w 05EX318   F51  C~1vVO      
2013 04  11.41561  12 59 15.811  +01 05 09.36  22.4w 05EX318   F51  C~1vVO      
2014 03  09.60089  13 09 05.097  +00 01 16.85  22.4G 05EX318   F51  C~2rXi      
2014 04  30.31707  13 04 40.931  +00 28 54.27  22.2w 05EX318   F51  C~1vVO      
2014 04  30.33025  13 04 40.860  +00 28 54.62  22.4w 05EX318   F51  C~1vVO      
2014 04  30.34342  13 04 40.791  +00 28 54.93  22.6w 05EX318   F51  C~1vVO      
2014 05  18.27912  13 03 22.490  +00 34 51.93  22.2w 05EX318   F51  C~1vVO      
2014 05  18.29037  13 03 22.438  +00 34 52.08  22.4w 05EX318   F51  C~1vVO      
2014 05  18.30164  13 03 22.395  +00 34 52.53  22.7w 05EX318   F51  C~1vVO      
2014 05  18.31290  13 03 22.349  +00 34 52.56  22.3w 05EX318   F51  C~1vVO      
2014 05  25.33773  13 02 57.530  +00 36 20.65  22.3w 05EX318   F51  C~1vVO      
2014 05  25.34915  13 02 57.484  +00 36 20.76  22.2w 05EX318   F51  C~1vVO      
2014 05  25.36059  13 02 57.436  +00 36 21.05  22.3w 05EX318   F51  C~1vVO      
2014 05  25.37206  13 02 57.425  +00 36 21.11  22.3w 05EX318   F51  C~1vVO      
2014 06  17.28791  13 02 06.111  +00 37 21.67  23.0G 05EX318   F51  C~2rXi      
2015 03  22.45042  13 15 00.093  -00 35 58.37  22.4G 05EX318   F51  C~2rXi      
2015 03  22.46203  13 15 00.022  -00 35 57.92  22.0G 05EX318   F51  C~2rXi      
2015 03  25.43542  13 14 45.072  -00 34 16.54  22.6G 05EX318   F51  C~2rXi      
2015 03  25.45024  13 14 44.999  -00 34 15.75  22.8G 05EX318   F51  C~2rXi      
2015 03  25.46513  13 14 44.922  -00 34 15.42  22.2G 05EX318   F51  C~2rXi      
2015 03  25.48013  13 14 44.851  -00 34 14.53  22.3G 05EX318   F51  C~2rXi      
2015 03  27.48273  13 14 34.618  -00 33 06.24  22.4G 05EX318   F51  C~2rXi      
2015 03  27.50083  13 14 34.520  -00 33 05.69  22.2G 05EX318   F51  C~2rXi      
2015 03  27.51594  13 14 34.434  -00 33 04.63  22.5G 05EX318   F51  C~2rXi      
2015 04  16.38958  13 12 49.543  -00 22 15.04  22.1G 05EX318   F51  C~2rXi      
2015 04  18.35999  13 12 39.150  -00 21 15.73  22.8G 05EX318   F51  C~2rXi      
2015 04  20.37921  13 12 28.557  -00 20 15.99  22.7w 05EX318   F51  C~1vVO      
2015 04  20.39274  13 12 28.470  -00 20 15.65  22.8w 05EX318   F51  C~1vVO      
2015 04  20.41971  13 12 28.343  -00 20 13.98  22.6w 05EX318   F51  C~1vVO      
2015 06  07.31286  13 09 14.362  -00 06 22.93  22.0G 05EX318   F51  C~2rXi      
2015 06  08.26609  13 09 12.213  -00 06 20.49  22.2w 05EX318   F51  C~1vVO      
2015 06  08.28955  13 09 12.150  -00 06 20.36  22.6w 05EX318   F51  C~1vVO      
2015 06  08.30129  13 09 12.119  -00 06 20.14  22.5w 05EX318   F51  C~1vVO      
2016 01  15.60643  13 24 28.072  -01 46 06.99  22.8G 05EX318   F51  C~2rXi      
2016 02  15.58144  13 24 03.888  -01 37 40.03  22.6G 05EX318   F51  C~2rXi      
2016 03  02.54713  13 23 14.342  -01 30 15.40  22.6G 05EX318   F51  C~2rXi      
2016 03  11.51604  13 22 37.796  -01 25 31.04  22.2G 05EX318   F51  C~2rXi      
2016 04  01.41625  13 20 56.242  -01 13 53.81  22.3G 05EX318   F51  C~2rXi      
2016 04  01.42964  13 20 56.171  -01 13 53.21  22.4G 05EX318   F51  C~2rXi      
2016 04  01.44307  13 20 56.105  -01 13 52.79  22.1G 05EX318   F51  C~2rXi      
2016 04  01.45656  13 20 56.032  -01 13 52.37  22.3G 05EX318   F51  C~2rXi      
2016 04  02.41518  13 20 51.039  -01 13 20.54  22.2G 05EX318   F51  C~2rXi      
2016 04  02.42709  13 20 50.969  -01 13 20.30  22.6G 05EX318   F51  C~2rXi      
2016 04  02.43904  13 20 50.907  -01 13 19.74  22.3G 05EX318   F51  C~2rXi      
2016 04  02.45102  13 20 50.841  -01 13 19.42  22.3G 05EX318   F51  C~2rXi      
2016 04  09.42364  13 20 14.058  -01 09 32.23  22.6G 05EX318   F51  C~2rXi      
2016 04  09.48014  13 20 13.738  -01 09 30.38  22.3G 05EX318   F51  C~2rXi      
2016 04  09.49377  13 20 13.669  -01 09 29.88  22.5G 05EX318   F51  C~2rXi      
2016 04  09.50721  13 20 13.595  -01 09 29.49  22.8G 05EX318   F51  C~2rXi      
2016 04  09.52054  13 20 13.503  -01 09 29.10  22.0G 05EX318   F51  C~2rXi      
2017 01  30.60945  13 31 06.609  -02 25 20.92  22.5G 05EX318   F51  C~2rXi      
2017 02  22.61895  13 30 24.537  -02 17 06.06  22.5G 05EX318   F51  C~2rXi      
2017 04  02.50359  13 27 38.301  -01 56 48.69  22.4G 05EX318   F51  C~2rXi      
2017 05  17.28277  13 23 54.667  -01 36 49.22  21.8G 05EX318   F51  C~2rXi      
2017 05  17.29374  13 23 54.656  -01 36 49.18  21.5G 05EX318   F51  C~2rXi      
2018 03  18.47471  13 35 33.989  -02 47 43.63  23.0G 05EX318   F51  C~2rXi      
2018 03  18.48653  13 35 33.929  -02 47 43.45  22.5G 05EX318   F51  C~2rXi      
2018 03  18.49841  13 35 33.866  -02 47 43.07  22.8G 05EX318   F51  C~2rXi      
2018 03  18.51033  13 35 33.820  -02 47 42.68  22.4G 05EX318   F51  C~2rXi      
2018 04  13.46790  13 33 24.024  -02 33 51.81  20.1G 05EX318   F51  C~2rXi      

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    -0.17       0.00    -0.10
  2   0.0000      0.00    -0.25       0.00    -0.13
  3   0.0000      0.00    -0.18       0.00    -0.13
  4   2.9902      0.00     0.99       0.00    -0.09
  5   2.9903      0.00     0.77       0.00     0.11
  6   2.9955      0.00    -0.53       0.00     0.10
  7   2.9957      0.00    -0.26       0.00     0.13
  8   7.9570      0.00    -0.45       0.00    -0.02
  9   8.2848      0.00    -0.32       0.00     0.05
 10   8.3012      0.00    -0.07       0.00    -0.15
 11   8.3040      0.00    -0.08       0.00    -0.06
 12   9.0002      0.00    -0.12       0.00     0.04
 13   9.0545      0.00    -0.11       0.00     0.08
 14   9.9665      0.00    -0.09       0.00    -0.12
 15   9.9665      0.00     0.05       0.00    -0.08
 16   9.9665      0.00     0.20       0.00     0.09
 17   9.9666      0.00    -0.15       0.00    -0.17
 18  10.0864      0.00     0.07       0.00     0.09
 19  10.0865      0.00    -0.03       0.00     0.04
 20  10.0865      0.00    -0.05       0.00     0.09
 21  10.0866      0.00     0.06       0.00     0.05
 22  10.0951      0.00    -0.06       0.00    -0.08
 23  10.1169      0.00    -0.37       0.00    -0.11
 24  10.1302      0.00     0.09       0.00    -0.23
 25  10.1302      0.00     0.36       0.00    -0.14
 26  11.0205      0.00     0.08       0.00    -0.20
 27  11.0205      0.00     0.13       0.00    -0.14
 28  11.0206      0.00     0.19       0.00    -0.19
 29  11.0206      0.00     0.16       0.00     0.21
 30  11.0831      0.00     0.20       0.00     0.16
 31  11.0831      0.00     0.24       0.00     0.34
 32  11.0832      0.00     0.20       0.00     0.05
 33  11.0832      0.00     0.25       0.00     0.06
 34  11.9927      0.00    -0.12       0.00     0.21
 35  12.1343      0.00     0.06       0.00     0.02
 36  12.1343      0.00    -0.03       0.00     0.05
 37  12.1344      0.00    -0.08       0.00     0.03
 38  12.1835      0.00     0.14       0.00     0.19
 39  12.1835      0.00     0.01       0.00     0.17
 40  12.1835      0.00     0.03       0.00     0.46
 41  12.1836      0.00    -0.00       0.00     0.32
 42  12.2028      0.00     0.27       0.00     0.08
 43  12.2028      0.00     0.15       0.00     0.07
 44  12.2028      0.00     0.01       0.00     0.25
 45  12.2029      0.00     0.42       0.00     0.19
 46  12.2656      0.00    -0.09       0.00    -0.24
 47  13.0272      0.00    -0.05       0.00    -0.04
 48  13.0272      0.00    -0.23       0.00     0.02
 49  13.0354      0.00    -0.22       0.00    -0.40
 50  13.0354      0.00    -0.16       0.00    -0.12
 51  13.0354      0.00    -0.16       0.00    -0.30
 52  13.0355      0.00    -0.06       0.00     0.08
 53  13.0410      0.00    -0.05       0.00    -0.05
 54  13.0410      0.00    -0.10       0.00    -0.12
 55  13.0411      0.00    -0.20       0.00     0.43
 56  13.0955      0.00     0.01       0.00    -0.00
 57  13.1009      0.00     0.01       0.00    -0.18
 58  13.1064      0.00    -0.07       0.00    -0.07
 59  13.1064      0.00    -0.29       0.00    -0.12
 60  13.1065      0.00    -0.04       0.00     0.76
 61  13.2376      0.00     0.02       0.00     0.01
 62  13.2402      0.00     0.17       0.00    -0.15
 63  13.2403      0.00     0.04       0.00    -0.08
 64  13.2403      0.00    -0.01       0.00     0.12
 65  13.8462      0.00     0.02       0.00     0.00
 66  13.9310      0.00     0.14       0.00     0.26
 67  13.9747      0.00    -0.22       0.00    -0.26
 68  13.9993      0.00     0.03       0.00     0.01
 69  14.0565      0.00    -0.15       0.00    -0.08
 70  14.0566      0.00    -0.15       0.00     0.07
 71  14.0566      0.00    -0.07       0.00     0.05
 72  14.0566      0.00    -0.09       0.00     0.02
 73  14.0593      0.00     0.03       0.00     0.06
 74  14.0593      0.00    -0.07       0.00    -0.10
 75  14.0593      0.00    -0.04       0.00     0.07
 76  14.0594      0.00    -0.07       0.00    -0.01
 77  14.0785      0.00     0.16       0.00    -0.11
 78  14.0786      0.00    -0.06       0.00    -0.07
 79  14.0786      0.00     0.01       0.00    -0.01
 80  14.0787      0.00    -0.01       0.00    -0.05
 81  14.0787      0.00    -0.31       0.00    -0.08
 82  14.8894      0.00    -0.07       0.00     0.16
 83  14.9524      0.00     0.10       0.00    -0.32
 84  15.0588      0.00     0.25       0.00    -0.05
 85  15.1814      0.00    -0.24       0.00    -0.02
 86  15.1814      0.00     0.30       0.00    -0.17
 87  16.0170      0.00     0.11       0.00     0.03
 88  16.0170      0.00     0.03       0.00    -0.16
 89  16.0171      0.00    -0.10       0.00    -0.16
 90  16.0171      0.00     0.04       0.00    -0.15
 91  16.0882      0.00     0.03       0.00     0.04

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.

05EX318    quality flag:3

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

axisobj        39.417    39.417    39.417
ecceobj         0.223     0.223     0.223
incobj          6.652     6.652     6.652
qmin           30.209    30.193    30.197
qmax           49.522    49.500    49.498
amean          39.456    39.456    39.457
amin           38.927    38.903    38.924
amax           40.063    40.073    40.060
emean           0.216     0.217     0.217
emin            0.198     0.199     0.199
emax            0.237     0.237     0.237
imean           5.246     5.173     5.128
imin            4.261     4.250     4.260
imax            5.932     5.820     5.754
excite_mean     0.235     0.235     0.235
fracstop        1.000     1.000     1.000
cjmean          2.989     2.989     2.988

libcent 0       181.0     180.4     180.6
libamp  0       124.8     124.5     123.9
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       218.6     231.0     226.1
kozaiamp        180.0     180.0     180.0