Orbit Fit and Astrometric record for 55565

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: 55565     
# Created Thu Oct 23 01:36:31 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  115 observations of  115
# Arc:  16.01y
# First observation: 1997/12/29
#  Last observation: 2013/12/31
# Chi-squared of fit:   145.89 DOF:  224 RMS:  0.20
# Min/Max residuals:    -0.86    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.171046E-05  1.743670E-02 -6.099860E-06 -7.694193E-03  2.126920E-02 -2.261964E-03
# 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
   -5.147793  129.349805    0.508959   -0.076192   -0.843442  2450812.071001
# Heliocentric elements and errors
Epoch:              2450812.5000  =  1997/12/30
Mean Anomaly:          268.76349 +/-     0.000
Argument of Peri:      298.01391 +/-     0.000
Long of Asc Node:      297.50880 +/-     0.000
Inclination:            24.44852 +/-     0.000
Eccentricity:         0.12816776 +/-    0.0000
Semi-Major Axis:     46.96506258 +/-    0.0000
Time of Perihelion: 2480606.3733 +/-       0.0
Perihelion:          40.94565553 +/-    0.0000
Aphelion:            52.98446962 +/-    0.0000
Period (y)              321.8626 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.82648062 +/-    0.0000
Ecliptic Y           37.18426425 +/-    0.0000
Ecliptic Z           -4.21882266 +/-    0.0000
Ecliptic XDOT        -0.00149235 +/-    0.0000
Ecliptic YDOT        -0.00170789 +/-    0.0000
Ecliptic ZDOT        -0.00096042 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.85493718 +/-    0.0000
Geocenter to KBO     47.01645183 +/-    0.0000
# Hcoef:  3.29

The following table shows the complete astrometric record for 55565. 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 (55565) followed by the observatory code and reference code for the source of the astrometry.

1997 12  29.57027  08 41 33.23   +12 56 46.1   19.3R 55565     566  Cg1193      
2000 01  02.04300  08 48 19.88   +11 34 21.4   20.   55565     461  Cg1193      
2000 12  05.50108  08 53 11.59   +10 51 29.3   19.6R 55565     608  Cg1193      
2001 02  17.36642  08 48 26.42   +11 01 57.9   19.0R 55565     608  Cg1193      
2001 03  28.30193  08 46 18.04   +11 11 09.4   19.6R 55565     608  Cg1193      
2001 03  28.45630  08 46 17.67   +11 11 11.2   19.1R 55565     608  Cg1193      
2002 01  08.49140  08 54 52.30   +10 10 56.7   19.6R 55565     644  Cg1193      
2002 01  10.30125  08 54 44.901  +10 11 12.90  19.7  55565     675  Cf8961      
2002 01  10.37671  08 54 44.599  +10 11 13.52  19.7  55565     675  Cf8961      
2002 01  10.44161  08 54 44.331  +10 11 14.18  19.7  55565     675  Cf8961      
2002 01  13.37486  08 54 32.04   +10 11 42.9   21.   55565     608  Cj0809      
2002 02  03.47060  08 52 59.10   +10 16 05.6   19.7R 55565     608  Cg1193      
2002 02  06.21241  08 52 46.895  +10 16 45.71  19.7R 55565     675  Cf8961      
2002 02  06.24646  08 52 46.739  +10 16 46.20  19.7R 55565     675  Cf8961      
2002 02  06.25195  08 52 46.723  +10 16 46.28  19.7R 55565     675  Cf8961      
2002 02  06.27438  08 52 46.625  +10 16 46.47  19.7R 55565     675  Cf8961      
2002 02  06.29889  08 52 46.508  +10 16 47.00  19.7R 55565     675  Cf8961      
2002 02  06.30423  08 52 46.481  +10 16 47.00  19.7R 55565     675  Cf8961      
2002 02  06.31478  08 52 46.434  +10 16 47.20  19.7R 55565     675  Cf8961      
2002 02  06.32000  08 52 46.405  +10 16 47.30  19.7R 55565     675  Cf8961      
2002 02  06.32538  08 52 46.397  +10 16 47.31  19.7R 55565     675  Cf8961      
2002 02  06.33596  08 52 46.350  +10 16 47.50  19.7R 55565     675  Cf8961      
2002 02  06.34113  08 52 46.317  +10 16 47.60  19.7R 55565     675  Cf8961      
2002 02  06.34654  08 52 46.302  +10 16 47.66  19.6R 55565     675  Cf8961      
2002 02  06.35176  08 52 46.277  +10 16 47.72  19.7R 55565     675  Cf8961      
2002 02  06.35708  08 52 46.248  +10 16 47.83  19.7R 55565     675  Cf8961      
2002 02  06.36226  08 52 46.217  +10 16 47.99  19.7R 55565     675  Cf8961      
2002 02  06.36765  08 52 46.206  +10 16 48.03  19.7R 55565     675  Cf8961      
2002 02  06.37297  08 52 46.184  +10 16 47.98  19.7R 55565     675  Cf8961      
2002 02  06.38611  08 52 46.120  +10 16 48.16  19.7R 55565     675  Cf8961      
2002 02  06.39159  08 52 46.091  +10 16 48.35  19.6R 55565     675  Cf8961      
2002 02  06.39686  08 52 46.078  +10 16 48.24  19.8R 55565     675  Cf8961      
2002 02  06.40222  08 52 46.038  +10 16 48.49  19.7R 55565     675  Cf8961      
2002 02  06.40759  08 52 46.017  +10 16 48.60  19.7R 55565     675  Cf8961      
2002 02  06.41302  08 52 45.995  +10 16 48.63  19.6R 55565     675  Cf8961      
2002 02  06.41849  08 52 45.968  +10 16 48.72  19.7R 55565     675  Cf8961      
2002 02  06.42392  08 52 45.953  +10 16 48.80  19.7R 55565     675  Cf8961      
2002 02  06.42929  08 52 45.924  +10 16 48.99  19.7R 55565     675  Cf8961      
2002 02  06.43483  08 52 45.903  +10 16 48.96  19.7R 55565     675  Cf8961      
2002 02  06.44020  08 52 45.873  +10 16 49.15  19.7R 55565     675  Cf8961      
2002 02  06.44568  08 52 45.846  +10 16 49.27  19.7R 55565     675  Cf8961      
2002 02  06.45090  08 52 45.831  +10 16 49.18  19.7R 55565     675  Cf8961      
2002 02  06.45644  08 52 45.802  +10 16 49.32  19.7R 55565     675  Cf8961      
2002 02  06.46167  08 52 45.782  +10 16 49.39  19.7R 55565     675  Cf8961      
2002 02  06.46712  08 52 45.757  +10 16 49.41  19.7R 55565     675  Cf8961      
2002 02  06.47269  08 52 45.739  +10 16 49.55  19.7R 55565     675  Cf8961      
2002 02  06.47817  08 52 45.714  +10 16 49.69  19.7R 55565     675  Cf8961      
2002 02  06.48355  08 52 45.677  +10 16 49.57  19.7R 55565     675  Cf8961      
2002 02  06.48989  08 52 45.662  +10 16 49.94  19.7R 55565     675  Cf8961      
2002 02  10.33848  08 52 28.639  +10 17 47.77  19.7R 55565     568  Cf8961      
2002 02  10.35639  08 52 28.537  +10 17 48.18  19.7R 55565     568  Cf8961      
2002 03  04.13684  08 50 59.498  +10 23 31.62  20.0R 55565     675  Cf8961      
2002 03  04.21909  08 50 59.190  +10 23 32.83  19.9R 55565     675  Cf8961      
2002 03  04.30379  08 50 58.878  +10 23 34.15  19.8R 55565     675  Cf8961      
2002 03  06.11870  08 50 52.33   +10 24 02.0   19.9R 55565     644  Cg1193      
2002 03  14.17655  08 50 25.24   +10 26 04.6   19.9R 55565     644  Cg1193      
2002 04  02.15002  08 49 38.122  +10 30 13.07  20.1R 55565     675  Cf8961      
2002 04  02.19169  08 49 38.041  +10 30 13.57  20.0R 55565     675  Cf8961      
2002 04  02.23441  08 49 37.966  +10 30 13.99  19.9R 55565     675  Cf8961      
2002 04  03.17559  08 49 36.320  +10 30 24.46  20.0R 55565     675  Cf8961      
2002 11  16.49874  09 00 33.43   +09 29 43.3   21.   55565     644  Cj0809      
2002 12  09.18954  09 00 02.04   +09 26 47.3   19.5R 55565     621  Cg7925      
2002 12  09.20109  09 00 01.97   +09 26 47.1   19.9R 55565     621  Cg7925      
2002 12  09.21262  09 00 01.92   +09 26 47.3   20.1R 55565     621  Cg7925      
2002 12  10.18966  08 59 59.69   +09 26 44.6   19.5R 55565     621  Cg7925      
2002 12  10.20120  08 59 59.70   +09 26 44.7   19.7R 55565     621  Cg7925      
2002 12  10.21274  08 59 59.67   +09 26 44.7   19.9R 55565     621  Cg7925      
2002 12  11.11289  08 59 57.52   +09 26 42.3   19.9R 55565     621  Cg7925      
2002 12  11.13596  08 59 57.43   +09 26 42.4   20.1R 55565     621  Cg7925      
2002 12  11.16289  08 59 57.39   +09 26 42.3   19.9R 55565     621  Cg7925      
2003 02  26.82917  08 54 51.46   +09 39 28.8         55565     246  Ch5508      
2003 02  26.83135  08 54 51.45   +09 39 28.7         55565     246  Ch5508      
2003 02  26.83354  08 54 51.42   +09 39 28.1         55565     246  Ch5508      
2003 02  26.83458  08 54 51.44   +09 39 28.2         55565     246  Ch5508      
2003 02  26.83571  08 54 51.44   +09 39 28.4         55565     246  Ch5508      
2003 12  18.11278  09 03 09.38   +08 43 40.6   20.3R 55565     621  Cj5526      
2003 12  18.13612  09 03 09.30   +08 43 40.8         55565     621  Cj5526      
2003 12  18.15945  09 03 09.24   +08 43 40.5         55565     621  Cj5526      
2003 12  23.49351  09 02 53.27   +08 43 45.3   20.1R 55565     568  Ck1856      
2003 12  23.49734  09 02 53.26   +08 43 44.9         55565     568  Ck1856      
2003 12  23.52448  09 02 53.17   +08 43 45.3         55565     568  Ck1856      
2003 12  23.52832  09 02 53.16   +08 43 45.3         55565     568  Ck1856      
2003 12  23.56790  09 02 53.03   +08 43 45.4         55565     568  Ck1856      
2003 12  23.57174  09 02 53.02   +08 43 45.4         55565     568  Ck1856      
2003 12  23.59935  09 02 52.93   +08 43 45.5         55565     568  Ck1856      
2003 12  23.60318  09 02 52.92   +08 43 45.5         55565     568  Ck1856      
2003 12  23.62299  09 02 52.85   +08 43 45.5         55565     568  Ck1856      
2003 12  23.62684  09 02 52.84   +08 43 45.5         55565     568  Ck1856      
2003 12  23.65950  09 02 52.73   +08 43 45.5         55565     568  Ck1856      
2003 12  23.66328  09 02 52.72   +08 43 45.6         55565     568  Ck1856      
2003 12  24.43648  09 02 50.27   +08 43 47.2   20.1R 55565     568  Ck1856      
2003 12  24.44031  09 02 50.25   +08 43 47.2         55565     568  Ck1856      
2003 12  24.49102  09 02 50.09   +08 43 47.3         55565     568  Ck1856      
2003 12  24.49486  09 02 50.07   +08 43 47.3         55565     568  Ck1856      
2003 12  24.51811  09 02 50.00   +08 43 47.4         55565     568  Ck1856      
2003 12  24.52194  09 02 49.99   +08 43 47.4         55565     568  Ck1856      
2003 12  24.54896  09 02 49.90   +08 43 47.5         55565     568  Ck1856      
2003 12  24.55285  09 02 49.88   +08 43 47.5         55565     568  Ck1856      
2003 12  24.58787  09 02 49.77   +08 43 47.5         55565     568  Ck1856      
2003 12  24.59170  09 02 49.76   +08 43 47.6         55565     568  Ck1856      
2003 12  24.61916  09 02 49.67   +08 43 47.6         55565     568  Ck1856      
2003 12  24.62299  09 02 49.65   +08 43 47.6         55565     568  Ck1856      
2003 12  24.65510  09 02 49.55   +08 43 47.7         55565     568  Ck1856      
2003 12  24.65894  09 02 49.53   +08 43 47.7         55565     568  Ck1856      
2003 12  24.66278  09 02 49.52   +08 43 47.8         55565     568  Ck1856      
2003 12  24.66661  09 02 49.51   +08 43 47.7         55565     568  Ck1856      
2005 01  16.36595  09 04 51.42   +08 02 57.0         55565     701  Cm5285      
2005 01  16.40249  09 04 51.30   +08 02 57.3         55565     701  Cm5285      
2005 01  16.43884  09 04 51.12   +08 02 57.2         55565     701  Cm5285      
2009 03  23.97678  09 14 27.72   +05 24 57.3   19.3R 55565     950  C~091U      
2009 03  23.98421  09 14 27.68   +05 24 57.4   20.3V 55565     950  C~091U      
2009 03  23.99909  09 14 27.64   +05 24 57.7   19.2R 55565     950  C~091U      
2013 12  31.73767  09 37 43.44   +01 17 45.5   21.0R 55565     D29  C~0yvF      
2013 12  31.77048  09 37 43.31   +01 17 45.1   20.0R 55565     D29  C~0yvF      
2013 12  31.80329  09 37 43.20   +01 17 44.6   20.0R 55565     D29  C~0yvF      

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    -0.13       0.00    -0.03
  2   2.0081      0.00     0.33       0.00     0.22
  3   2.9348      0.00     0.30       0.00    -0.18
  4   3.1370      0.00    -0.39       0.00    -0.15
  5   3.2436      0.00     0.09       0.00     0.07
  6   3.2440      0.00    -0.50       0.00     0.14
  7   4.0272      0.00    -0.06       0.00    -0.28
  8   4.0321      0.00    -0.07       0.00    -0.08
  9   4.0323      0.00     0.14       0.00    -0.15
 10   4.0325      0.00     0.21       0.00    -0.08
 11   4.0405      0.00    -0.51       0.00     0.51
 12   4.0983      0.00    -0.29       0.00     0.10
 13   4.1058      0.00    -0.04       0.00     0.05
 14   4.1059      0.00    -0.08       0.00     0.03
 15   4.1059      0.00     0.06       0.00     0.02
 16   4.1060      0.00     0.10       0.00    -0.12
 17   4.1060      0.00     0.01       0.00     0.05
 18   4.1060      0.00    -0.03       0.00    -0.03
 19   4.1061      0.00    -0.02       0.00     0.01
 20   4.1061      0.00    -0.11       0.00     0.03
 21   4.1061      0.00     0.14       0.00    -0.04
 22   4.1061      0.00     0.15       0.00    -0.01
 23   4.1061      0.00     0.01       0.00     0.02
 24   4.1062      0.00     0.15       0.00     0.00
 25   4.1062      0.00     0.13       0.00    -0.02
 26   4.1062      0.00     0.05       0.00     0.01
 27   4.1062      0.00    -0.06       0.00     0.09
 28   4.1062      0.00     0.14       0.00     0.05
 29   4.1062      0.00     0.17       0.00    -0.07
 30   4.1063      0.00     0.10       0.00    -0.09
 31   4.1063      0.00     0.03       0.00     0.02
 32   4.1063      0.00     0.19       0.00    -0.17
 33   4.1063      0.00    -0.05       0.00     0.00
 34   4.1063      0.00     0.00       0.00     0.03
 35   4.1063      0.00     0.04       0.00    -0.02
 36   4.1064      0.00     0.00       0.00    -0.01
 37   4.1064      0.00     0.15       0.00    -0.01
 38   4.1064      0.00     0.07       0.00     0.10
 39   4.1064      0.00     0.13       0.00    -0.01
 40   4.1064      0.00     0.04       0.00     0.10
 41   4.1064      0.00     0.01       0.00     0.14
 42   4.1064      0.00     0.13       0.00    -0.03
 43   4.1065      0.00     0.07       0.00     0.03
 44   4.1065      0.00     0.13       0.00     0.03
 45   4.1065      0.00     0.12       0.00    -0.03
 46   4.1065      0.00     0.22       0.00     0.02
 47   4.1065      0.00     0.22       0.00     0.08
 48   4.1065      0.00     0.02       0.00    -0.12
 49   4.1066      0.00     0.22       0.00     0.16
 50   4.1171      0.00     0.03       0.00    -0.19
 51   4.1171      0.00    -0.30       0.00    -0.06
 52   4.1768      0.00     0.10       0.00     0.07
 53   4.1770      0.00     0.08       0.00    -0.01
 54   4.1772      0.00     0.14       0.00    -0.01
 55   4.1822      0.00     0.21       0.00    -0.43
 56   4.2043      0.00    -0.86       0.00     0.10
 57   4.2562      0.00    -0.05       0.00    -0.04
 58   4.2563      0.00    -0.10       0.00    -0.01
 59   4.2564      0.00    -0.03       0.00    -0.06
 60   4.2590      0.00     0.13       0.00     0.02
 61   4.8814      0.00    -0.35       0.00     0.38
 62   4.9435      0.00     0.56       0.00     0.00
 63   4.9435      0.00    -0.08       0.00    -0.16
 64   4.9436      0.00    -0.43       0.00     0.08
 65   4.9463      0.00     0.03       0.00     0.22
 66   4.9463      0.00     0.59       0.00     0.35
 67   4.9463      0.00     0.56       0.00     0.38
 68   4.9488      0.00     0.44       0.00     0.24
 69   4.9488      0.00    -0.06       0.00     0.40
 70   4.9489      0.00     0.34       0.00     0.36
 71   5.1616      0.00     0.46       0.00     0.48
 72   5.1616      0.00     0.44       0.00     0.34
 73   5.1616      0.00     0.12       0.00    -0.30
 74   5.1616      0.00     0.48       0.00    -0.21
 75   5.1616      0.00     0.55       0.00    -0.03
 76   5.9673      0.00     0.03       0.00    -0.27
 77   5.9673      0.00    -0.16       0.00    -0.07
 78   5.9674      0.00    -0.06       0.00    -0.36
 79   5.9820      0.00    -0.10       0.00    -0.01
 80   5.9820      0.00    -0.07       0.00    -0.42
 81   5.9821      0.00    -0.10       0.00    -0.07
 82   5.9821      0.00    -0.06       0.00    -0.08
 83   5.9822      0.00    -0.09       0.00    -0.05
 84   5.9822      0.00    -0.05       0.00    -0.06
 85   5.9823      0.00    -0.06       0.00    -0.01
 86   5.9823      0.00    -0.02       0.00    -0.02
 87   5.9823      0.00    -0.11       0.00    -0.06
 88   5.9824      0.00    -0.07       0.00    -0.06
 89   5.9824      0.00    -0.14       0.00    -0.13
 90   5.9825      0.00    -0.10       0.00    -0.03
 91   5.9846      0.00    -0.02       0.00    -0.07
 92   5.9846      0.00    -0.13       0.00    -0.08
 93   5.9847      0.00    -0.03       0.00    -0.10
 94   5.9847      0.00    -0.14       0.00    -0.11
 95   5.9848      0.00    -0.04       0.00    -0.06
 96   5.9848      0.00     0.00       0.00    -0.07
 97   5.9849      0.00    -0.01       0.00    -0.04
 98   5.9849      0.00    -0.12       0.00    -0.05
 99   5.9850      0.00    -0.04       0.00    -0.13
100   5.9850      0.00     0.00       0.00    -0.03
101   5.9851      0.00     0.01       0.00    -0.10
102   5.9851      0.00    -0.10       0.00    -0.11
103   5.9852      0.00    -0.01       0.00    -0.08
104   5.9852      0.00    -0.12       0.00    -0.09
105   5.9852      0.00    -0.08       0.00     0.00
106   5.9852      0.00    -0.04       0.00    -0.10
107   7.0494      0.00    -0.22       0.00     0.01
108   7.0495      0.00     0.34       0.00    -0.07
109   7.0496      0.00    -0.02       0.00    -0.55
110  11.2318      0.00     0.27       0.00     0.18
111  11.2318      0.00    -0.01       0.00     0.14
112  11.2318      0.00     0.04       0.00     0.16
113  16.0059      0.00     0.36       0.00     0.46
114  16.0060      0.00    -0.01       0.00     0.08
115  16.0061      0.00    -0.08       0.00    -0.39

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.

55565    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        47.170    47.170    47.170
ecceobj         0.126     0.126     0.126
incobj         24.370    24.370    24.370
qmin           40.525    40.535    40.522
qmax           54.361    54.351    54.346
amean          47.278    47.278    47.279
amin           46.896    46.887    46.886
amax           47.715    47.704    47.712
emean           0.125     0.125     0.125
emin            0.111     0.110     0.111
emax            0.140     0.140     0.140
imean          26.008    26.008    26.008
imin           25.672    25.669    25.676
imax           26.270    26.270    26.270
excite_mean     0.456     0.456     0.456
fracstop        1.000     1.000     1.000
cjmean          2.871     2.871     2.871

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       184.4     184.3     184.4
kozaiamp        180.0     180.0     180.0