Orbit Fit and Astrometric record for 66652

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: 66652     
# Created Sat Aug 30 01:36:52 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   47 observations of   51
# Arc:  13.11y
# First observation: 1999/09/08
#  Last observation: 2012/10/18
# Chi-squared of fit:   192.17 DOF:   88 RMS:  0.36
# Min/Max residuals:    -0.84    0.92
# Exact a, adot, b, bdot, g, gdot:
  1.863758E-05  2.544092E-02 -4.907488E-07 -1.217760E-04  2.506744E-02  1.238646E-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
   -0.505914  -34.457829   -0.333371   -0.008571   -0.943482  2451429.803363
# Heliocentric elements and errors
Epoch:              2451430.5000  =  1999/09/09
Mean Anomaly:           33.93439 +/-     0.000
Argument of Peri:      201.08141 +/-     0.000
Long of Asc Node:       84.71825 +/-     0.000
Inclination:             0.56334 +/-     0.000
Eccentricity:         0.08941502 +/-    0.0000
Semi-Major Axis:     43.98268990 +/-    0.0000
Time of Perihelion: 2441387.6113 +/-       0.0
Perihelion:          40.04997662 +/-    0.0000
Aphelion:            47.91540317 +/-    0.0000
Period (y)              291.6963 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.86640585 +/-    0.0000
Ecliptic Y          -22.82667999 +/-    0.0000
Ecliptic Z           -0.35223521 +/-    0.0000
Ecliptic XDOT         0.00167951 +/-    0.0000
Ecliptic YDOT         0.00222295 +/-    0.0000
Ecliptic ZDOT        -0.00001443 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.84252702 +/-    0.0000
Geocenter to KBO     39.89239568 +/-    0.0000
# Hcoef:  5.84

The following table shows the complete astrometric record for 66652. 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 (66652) followed by the observatory code and reference code for the source of the astrometry.

1999 09  08.30262  21 51 55.60   -13 28 58.3   21.7R 66652     568  Cb6519      
1999 09  08.35493  21 51 55.39   -13 28 59.3   21.8R 66652     568  Cb6519      
1999 09  08.40789  21 51 55.16   -13 29 00.6   21.8R 66652     568  Cb6519      
1999 09  10.33692  21 51 46.69   -13 29 44.1   21.5R 66652     568  Cb6519      
1999 09  10.35655  21 51 46.61   -13 29 45.0   21.6R 66652     568  Cb6519      
1999 09  13.34384  21 51 33.84   -13 30 50.8   21.5R 66652     568  Cb6519      
1999 09  13.35199  21 51 33.80   -13 30 51.0   21.7R 66652     568  Cb6519      
1999 09  14.30760  21 51 29.80   -13 31 11.6   21.6R 66652     568  Cb6519      
1999 09  14.31468  21 51 29.76   -13 31 11.8   21.6R 66652     568  Cb6519      
1999 10  09.26403  21 50 02.79   -13 38 33.8   21.8R 66652     568  Cb6519      
1999 10  09.31700  21 50 02.66   -13 38 34.4   21.6R 66652     568  Cb6519      
1999 11  10.28887  21 49 22.37   -13 41 41.7   21.7R 66652     568  Cb6519      
1999 11  11.32016  21 49 22.65   -13 41 39.3   21.7R 66652     568  Cb6519      
2000 07  22.52180  22 01 07.81   -12 40 27.6         66652     568  Cb6519      
2000 07  22.58791  22 01 07.53   -12 40 29.1         66652     568  Cb6519      
2000 07  23.46547  22 01 03.97   -12 40 48.8         66652     568  Cb6519      
2000 07  23.54696  22 01 03.65   -12 40 50.6         66652     568  Cb6519      
2000 09  05.03699  21 57 45.40   -12 58 38.1   21.5R 66652     309  Cc7536      
2000 09  05.03951  21 57 45.38   -12 58 38.1         66652     309  Cc7536      
2000 09  05.04194  21 57 45.37   -12 58 38.4   22.1R 66652     309  Cc7536      
2000 09  05.04411  21 57 45.37   -12 58 38.4   20.8R 66652     309  Cc7536      
2000 09  05.04621  21 57 45.36   -12 58 38.5   21.5R 66652     309  Cc7536      
2001 05  24.48005  22 08 33.05   -11 59 41.3   21.7R 66652     675  Cd1215      
2001 05  25.46613  22 08 33.63   -11 59 39.0   21.7R 66652     675  Cd1215      
2003 07  07.46434  22 18 34.25   -11 04 57.5   21.8R 66652     568  Ci2608      
2003 07  07.59626  22 18 33.86   -11 04 59.6         66652     568  Ci2608      
2003 07  08.48476  22 18 31.39   -11 05 14.4         66652     568  Ci2608      
2004 05  29.29664  22 24 42.02   -10 29 41.8   21.5R 66652     304  Ck8914      
2004 05  29.33911  22 24 42.03   -10 29 41.8         66652     304  Ck8914      
2004 05  29.37034  22 24 42.06   -10 29 41.9         66652     304  Ck8914      
2004 05  29.40742  22 24 42.08   -10 29 41.9         66652     304  Ck8914      
2007 07  17.66084  22 39 33.29   -09 04 04.6   22.6R 66652     250  S~06Fm      
2007 07  17.66918  22 39 33.26   -09 04 04.8         66652     250  S~06Fm      
2007 07  17.67682  22 39 33.24   -09 04 04.9         66652     250  S~06Fm      
2007 07  17.68445  22 39 33.22   -09 04 05.0         66652     250  S~06Fm      
2008 05  01.78099  22 44 39.38   -08 32 38.1         66652     250  S~06Fm      
2008 05  01.78863  22 44 39.41   -08 32 38.0         66652     250  S~06Fm      
2008 05  01.79627  22 44 39.44   -08 32 37.8         66652     250  S~06Fm      
2008 05  01.80391  22 44 39.46   -08 32 37.7         66652     250  S~06Fm      
2012 10  16.05638  22 59 46.26   -07 02 14.5   21.3R 66652     304  C~0pCa      
2012 10  16.11947  22 59 46.06   -07 02 15.7         66652     304  C~0pCa      
2012 10  16.23928  22 59 45.65   -07 02 18.1         66652     304  C~0pCa      
2012 10  16.99711  22 59 43.22   -07 02 32.8         66652     304  C~0pCa      
2012 10  17.17422  22 59 42.63   -07 02 36.2         66652     304  C~0pCa      
2012 10  17.24047  22 59 42.43   -07 02 37.4         66652     304  C~0pCa      
2012 10  18.10361  22 59 39.69   -07 02 53.9         66652     304  C~0pCa      
2012 10  18.23170  22 59 39.28   -07 02 56.1         66652     304  C~0pCa      
2012 10  18.24027  22 59 39.28   -07 02 56.6         66652     304  C~0pCa      
2012 10  19.10480  22 59 36.58   -07 03 12.6         66652     304  C~0pCa      
2012 10  19.15124  22 59 36.44   -07 03 13.5         66652     304  C~0pCa      
2012 10  19.24546  22 59 36.16   -07 03 15.4         66652     304  C~0pCa      

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    -0.76
  2   0.0001      0.00    -0.12       0.00     0.12
  3   0.0003      0.00     0.01       0.00     0.03
  4   0.0056      0.00    -0.50       0.00     0.18
  5   0.0056      0.00    -0.39       0.00    -0.28
  6   0.0138      0.00    -0.04       0.00    -0.07
  7   0.0138      0.00    -0.11       0.00    -0.10
  8   0.0164      0.00     0.05       0.00    -0.02
  9   0.0165      0.00    -0.09       0.00    -0.07
 10   0.0848      0.00    -0.25       0.00    -0.46
 11   0.0849      0.00    -0.02       0.00    -0.36
 12   0.1724      0.00    -0.27       0.00    -0.28
 13   0.1753      0.00    -0.47       0.00    -0.17
 14   0.8712      0.00     0.25       0.00     0.01
 15   0.8714      0.00     0.13       0.00    -0.03
 16   0.8738      0.00    -0.05       0.00    -0.17
 17   0.8740      0.00     0.24       0.00    -0.14
 18   0.9931      0.00     0.68       0.00     0.65
 19   0.9931      0.00     0.55       0.00     0.71
 20   0.9931      0.00     0.57       0.00     0.47
 21   0.9931      0.00     0.71       0.00     0.52
 22   0.9931      0.00     0.71       0.00     0.47
 23   1.7089      0.00    -0.17       0.00    -0.03
 24   1.7116      0.00    -0.19       0.00    -0.08
 25   3.8280      0.00     0.49       0.00    -0.48
 26   3.8283      0.00     0.34       0.00    -0.39
 27   3.8308      0.00     0.92       0.00    -0.32
 28   4.7228      0.00     0.17       0.00     0.57
 29   4.7229      0.00     0.01       0.00     0.48
 30   4.7230      0.00     0.23       0.00     0.31
 31   4.7231      0.00     0.27       0.00     0.23
 32   7.8559      0.00    -0.77       0.00    -0.30
 33   7.8559      0.00    -0.84       0.00    -0.34
 34   7.8559      0.00    -0.79       0.00    -0.30
 35   7.8559      0.00    -0.75       0.00    -0.26
 36   8.6474      0.00 (  -3.05)      0.00 (   0.92)
 37   8.6475      0.00 (  -2.99)      0.00 (   0.87)
 38   8.6475      0.00 (  -2.92)      0.00 (   0.92)
 39   8.6475      0.00 (  -3.01)      0.00 (   0.87)
 40  13.1054      0.00     0.03       0.00     0.03
 41  13.1056      0.00     0.19       0.00     0.07
 42  13.1059      0.00     0.02       0.00     0.01
 43  13.1080      0.00     0.09       0.00     0.06
 44  13.1085      0.00    -0.04       0.00     0.07
 45  13.1087      0.00     0.20       0.00     0.14
 46  13.1110      0.00     0.00       0.00     0.07
 47  13.1114      0.00     0.01       0.00     0.28
 48  13.1114      0.00     0.41       0.00    -0.06
 49  13.1138      0.00     0.06       0.00     0.04
 50  13.1139      0.00     0.15       0.00     0.00
 51  13.1141      0.00     0.37       0.00    -0.18

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.

66652    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        43.928    43.928    43.928
ecceobj         0.088     0.088     0.088
incobj          0.563     0.563     0.563
qmin           37.294    37.310    37.287
qmax           50.652    50.695    50.779
amean          43.715    43.714    43.727
amin           43.292    43.275    43.243
amax           44.230    44.215    44.237
emean           0.108     0.105     0.112
emin            0.079     0.062     0.079
emax            0.146     0.147     0.148
imean           1.553     1.551     1.583
imin            0.082     0.040     0.091
imax            2.368     2.376     2.373
excite_mean     0.112     0.109     0.116
fracstop        1.000     1.000     1.000
cjmean          3.082     3.083     3.081

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       189.3     185.0     191.5
kozaiamp        180.0     180.0     180.0