Orbit Fit and Astrometric record for 60621

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: 60621     
# Created Mon Nov 24 02:37:05 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   40 observations of   40
# Arc:   6.80y
# First observation: 2000/03/27
#  Last observation: 2007/01/15
# Chi-squared of fit:   274.80 DOF:   74 RMS:  0.46
# Min/Max residuals:    -1.31    1.46
# Exact a, adot, b, bdot, g, gdot:
  2.129721E-05  3.522408E-02 -9.684040E-07 -3.619464E-03  2.917797E-02  6.749193E-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
   -0.197508 -174.254009   -0.023812   -0.003665   -1.004727  2451630.830503
# Heliocentric elements and errors
Epoch:              2451630.5000  =  2000/03/27
Mean Anomaly:           16.13478 +/-     0.000
Argument of Peri:      142.61394 +/-     0.000
Long of Asc Node:        3.91783 +/-     0.000
Inclination:             5.88225 +/-     0.000
Eccentricity:         0.40001652 +/-    0.0000
Semi-Major Axis:     54.99417076 +/-    0.0000
Time of Perihelion: 2444954.2270 +/-       0.0
Perihelion:          32.99559388 +/-    0.0000
Aphelion:            76.99274765 +/-    0.0000
Period (y)              407.8338 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -35.09060913 +/-    0.0000
Ecliptic Y           -3.55288975 +/-    0.0000
Ecliptic Z           -0.11817113 +/-    0.0000
Ecliptic XDOT        -0.00030414 +/-    0.0000
Ecliptic YDOT        -0.00334510 +/-    0.0000
Ecliptic ZDOT        -0.00034169 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.27008544 +/-    0.0000
Geocenter to KBO     34.27233442 +/-    0.0000
# Hcoef:  6.82

The following table shows the complete astrometric record for 60621. 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 (60621) followed by the observatory code and reference code for the source of the astrometry.

2000 03  27.32976  12 20 47.12   -02 27 49.5         60621     568  Cb2555      
2000 03  29.38006  12 20 36.50   -02 26 45.6   21.6R 60621     568  Cb2555      
2000 03  29.42322  12 20 36.27   -02 26 44.2   21.7R 60621     568  Cb2555      
2000 03  29.46465  12 20 36.06   -02 26 43.0   21.9R 60621     568  Cb2555      
2000 03  30.55476  12 20 30.40   -02 26 08.3         60621     568  Cb2555      
2000 03  30.57157  12 20 30.31   -02 26 07.8   21.8R 60621     568  Cb2555      
2000 03  30.58840  12 20 30.21   -02 26 07.5         60621     568  Cb2555      
2000 05  02.33216  12 17 56.97   -02 10 45.2   22.1R 60621     568  Cb5712      
2000 05  02.36163  12 17 56.86   -02 10 44.4   22.2R 60621     568  Cb5712      
2000 05  26.20496  12 16 46.61   -02 03 53.3   21.6R 60621     695  Cb5712      
2000 05  26.24667  12 16 46.53   -02 03 53.0   21.7R 60621     695  Cb5712      
2000 05  26.29275  12 16 46.44   -02 03 52.5   21.8R 60621     695  Cb5712      
2000 05  27.20906  12 16 44.71   -02 03 43.1   22.2R 60621     695  Cb5712      
2000 05  27.25634  12 16 44.62   -02 03 42.6   21.9R 60621     695  Cb5712      
2000 05  27.30675  12 16 44.54   -02 03 41.9   22.1R 60621     695  Cb5712      
2000 06  29.90052  12 16 39.01   -02 04 04.5         60621     950  Cb6951      
2000 06  29.93594  12 16 39.05   -02 04 04.8         60621     950  Cb6951      
2000 08  07.98858  12 18 50.67   -02 19 22.9   22.3R 60621     809  Cc2338      
2000 08  08.00368  12 18 50.73   -02 19 23.6   22.3R 60621     809  Cc2338      
2000 08  08.01783  12 18 50.79   -02 19 24.0         60621     809  Cc2338      
2000 12  16.47809  12 31 33.70   -03 46 12.9   21.6R 60621     695  Cc3761      
2000 12  16.50292  12 31 33.77   -03 46 13.5   21.6R 60621     695  Cc3761      
2000 12  16.52705  12 31 33.81   -03 46 13.9   21.5R 60621     695  Cc3761      
2000 12  17.48679  12 31 36.22   -03 46 31.8         60621     695  Cc3761      
2001 01  30.27464  12 31 41.28   -03 49 06.0   22.0R 60621     809  Cc6643      
2001 01  30.32918  12 31 41.16   -03 49 05.4   22.0R 60621     809  Cc6643      
2001 01  30.36854  12 31 41.07   -03 49 05.0   22.0R 60621     809  Cc6643      
2001 01  31.29275  12 31 39.05   -03 48 54.3         60621     809  Cc6643      
2002 02  10.23584  12 38 05.60   -04 43 38.2         60621     304  Ce8748      
2002 02  10.33725  12 38 05.30   -04 43 37.4   23.3R 60621     304  Ce8748      
2003 03  02.56323  12 43 41.96   -05 33 08.4         60621     568  Ch5667      
2003 03  02.59803  12 43 41.80   -05 33 07.5         60621     568  Ch5667      
2003 03  24.46628  12 41 58.26   -05 23 07.3   22.2R 60621     568  Cq9614      
2003 03  24.51122  12 41 58.02   -05 23 06.0   22.2R 60621     568  Cq9614      
2003 03  24.55730  12 41 57.79   -05 23 04.5   22.3R 60621     568  Cq9614      
2003 03  27.47895  12 41 43.00   -05 21 38.4   22.9R 60621     568  Cq9614      
2007 01  15.07458  13 11 41.34   -09 12 19.4   22.3R 60621     250  S~06Fb      
2007 01  15.07898  13 11 41.34   -09 12 19.5         60621     250  S~06Fb      
2007 01  15.08338  13 11 41.34   -09 12 19.5         60621     250  S~06Fb      
2007 01  15.08778  13 11 41.34   -09 12 19.5         60621     250  S~06Fb      

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    -0.33
  2   0.0056      0.00    -0.05       0.00    -0.38
  3   0.0057      0.00    -0.08       0.00    -0.33
  4   0.0058      0.00     0.06       0.00    -0.43
  5   0.0088      0.00    -0.02       0.00     0.16
  6   0.0089      0.00    -0.05       0.00     0.13
  7   0.0089      0.00    -0.23       0.00    -0.10
  8   0.0986      0.00    -0.27       0.00    -1.31
  9   0.0986      0.00    -0.16       0.00    -1.19
 10   0.1639      0.00    -0.08       0.00    -0.14
 11   0.1640      0.00    -0.02       0.00    -0.29
 12   0.1642      0.00     0.00       0.00    -0.28
 13   0.1667      0.00    -0.25       0.00    -0.35
 14   0.1668      0.00    -0.24       0.00    -0.33
 15   0.1669      0.00    -0.02       0.00    -0.14
 16   0.2589      0.00     0.03       0.00    -0.11
 17   0.2590      0.00    -0.15       0.00     0.00
 18   0.3659      0.00     0.34       0.00     0.43
 19   0.3660      0.00     0.12       0.00     0.25
 20   0.3660      0.00    -0.04       0.00     0.33
 21   0.7232      0.00     0.02       0.00    -0.15
 22   0.7233      0.00     0.14       0.00    -0.27
 23   0.7233      0.00    -0.16       0.00    -0.21
 24   0.7260      0.00    -0.08       0.00    -0.06
 25   0.8458      0.00     0.07       0.00     0.41
 26   0.8460      0.00     0.11       0.00     0.40
 27   0.8461      0.00     0.10       0.00     0.36
 28   0.8486      0.00     0.46       0.00     0.47
 29   1.8752      0.00     0.11       0.00     0.80
 30   1.8754      0.00     0.25       0.00    -0.01
 31   2.9301      0.00     0.61       0.00     0.03
 32   2.9302      0.00     0.48       0.00     0.09
 33   2.9901      0.00     0.27       0.00     1.37
 34   2.9902      0.00     0.15       0.00     1.33
 35   2.9904      0.00     0.26       0.00     1.46
 36   2.9984      0.00     1.02       0.00     0.08
 37   6.8029      0.00    -0.25       0.00    -0.72
 38   6.8029      0.00    -0.29       0.00    -0.79
 39   6.8029      0.00    -0.32       0.00    -0.75
 40   6.8029      0.00    -0.36       0.00    -0.72

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.

60621    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE

axisobj        54.945    54.945    54.944
ecceobj         0.399     0.399     0.399
incobj          5.884     5.884     5.884
qmin           32.519    32.521    32.517
qmax           79.730    79.726    79.735
amean          55.462    55.462    55.462
amin           54.758    54.756    54.760
amax           56.413    56.416    56.376
emean           0.402     0.402     0.402
emin            0.390     0.390     0.391
emax            0.414     0.414     0.414
imean           6.724     6.724     6.721
imin            6.230     6.230     6.230
imax            7.169     7.169     7.163
excite_mean     0.418     0.418     0.419
fracstop        1.000     1.000     1.000
cjmean          3.011     3.011     3.011

libcent 0       179.7     179.7     178.7
libamp  0        77.9      78.2      80.2
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       227.5     227.6     227.6
kozaiamp         65.5      65.6      66.1