Orbit Fit and Astrometric record for 04SC60

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: 04SC60    
# Created Fri Oct 20 01:37:35 2017
# Orbit generated from Bernstein formalism
# Fitting   41 observations of   43
# Arc:   9.99y
# First observation: 2004/09/22
#  Last observation: 2014/09/18
Preliminary a, adot, b, bdot, g, gdot:
  -0.006905   0.036922  -0.000132   0.000636   0.038196   0.000000
# Chi-squared of fit:    25.00 DOF:   76 RMS:  0.14
# Min/Max residuals:    -0.30    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.872710E-05  3.346773E-02  1.211334E-06  5.731221E-04  2.933431E-02 -6.246907E-03
# Covariance matrix:
  3.2015E-13 -8.7006E-14  2.1420E-15 -1.0766E-15 -6.6698E-14 -1.5233E-13
 -8.7006E-14  3.6157E-14 -1.1407E-15  5.7317E-16  5.1467E-14  8.0942E-14
  2.1420E-15 -1.1407E-15  1.9773E-13 -2.4761E-14 -2.2715E-15 -2.8840E-15
 -1.0766E-15  5.7317E-16 -2.4761E-14  3.6892E-15  1.1383E-15  1.4489E-15
 -6.6698E-14  5.1467E-14 -2.2715E-15  1.1383E-15  4.1249E-13  1.5769E-13
 -1.5233E-13  8.0942E-14 -2.8840E-15  1.4489E-15  1.5769E-13  2.0434E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.089223   -6.281220   -0.100438   -0.001498   -1.002794  2453270.730873
# Heliocentric elements and errors
Epoch:              2453270.5000  =  2004/09/22
Mean Anomaly:          327.43506 +/-     0.008
Argument of Peri:       49.19734 +/-     0.010
Long of Asc Node:      358.90460 +/-     0.001
Inclination:             0.98922 +/-     0.000
Eccentricity:         0.26203615 +/-    0.0001
Semi-Major Axis:     43.44771608 +/-    0.0050
Time of Perihelion: 2462732.7990 +/-       1.6
Perihelion:          32.06284396 +/-    0.0045
Aphelion:            54.83258819 +/-    0.0068
Period (y)              286.3905 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.88873779 +/-    0.0007
Ecliptic Y           -3.73792918 +/-    0.0001
Ecliptic Z           -0.05301378 +/-    0.0000
Ecliptic XDOT        -0.00023934 +/-    0.0000
Ecliptic YDOT         0.00316159 +/-    0.0000
Ecliptic ZDOT         0.00005450 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.08844467 +/-    0.0007
Geocenter to KBO     34.08977387 +/-    0.0007
# Hcoef:  7.05

The following table shows the complete astrometric record for 04SC60. 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 (04SC60) followed by the observatory code and reference code for the source of the astrometry.

2004 09  22.23013  23 37 04.51   -02 34 34.5   22.6R 04SC60    675  Cn3338      
2004 09  22.27546  23 37 04.27   -02 34 35.9   22.3R 04SC60    675  Cn3338      
2004 09  23.23653  23 36 59.32   -02 35 07.3   22.4R 04SC60    675  Cn3338      
2004 09  23.27897  23 36 59.09   -02 35 08.7   22.3R 04SC60    675  Cn3338      
2006 09  19.264573 23 51 30.44   -00 56 42.5   22.5V 04SC60    645  C~2JxB      
2006 09  19.265402 23 51 30.44   -00 56 42.5   22.2V 04SC60    645  C~2JxB      
2006 09  19.267890 23 51 30.44   -00 56 42.5   22.8V 04SC60    645  C~2JxB      
2010 09  15.48832  00 21 09.08   +02 24 46.2   22.6w 04SC60    F51  C~0STw      
2010 09  15.48894  00 21 09.071  +02 24 46.23  22.2w 04SC60    F51  C~1vVL      
2010 09  15.49804  00 21 09.03   +02 24 45.6   22.8w 04SC60    F51  C~0STw      
2010 09  15.50708  00 21 08.97   +02 24 45.2   22.3w 04SC60    F51  C~0STw      
2010 09  15.50735  00 21 08.967  +02 24 45.35  21.9w 04SC60    F51  C~1vVL      
2010 09  15.51611  00 21 08.90   +02 24 45.4   22.6w 04SC60    F51  C~0STw      
2010 09  15.51672  00 21 08.895  +02 24 45.47  22.1w 04SC60    F51  C~1vVL      
2010 09  16.43970  00 21 04.14   +02 24 14.6   22.4w 04SC60    F51  C~0STw      
2010 09  16.45150  00 21 04.08   +02 24 14.1   22.6w 04SC60    F51  C~0STw      
2010 09  16.45171  00 21 04.077  +02 24 14.13  22.3w 04SC60    F51  C~1vVL      
2010 09  16.46263  00 21 04.02   +02 24 13.8   22.6w 04SC60    F51  C~0STw      
2010 09  16.46283  00 21 04.020  +02 24 13.83  22.1w 04SC60    F51  C~1vVL      
2010 09  16.47374  00 21 03.96   +02 24 13.4   22.5w 04SC60    F51  C~0STw      
2010 09  16.47387  00 21 03.959  +02 24 13.41  22.1w 04SC60    F51  C~1vVL      
2010 10  03.38622  00 19 34.13   +02 14 39.2   22.6w 04SC60    F51  C~0STw      
2010 10  03.38683  00 19 34.123  +02 14 39.18  22.2w 04SC60    F51  C~1vVL      
2010 10  03.39941  00 19 34.07   +02 14 38.7   22.5w 04SC60    F51  C~0STw      
2010 10  03.40015  00 19 34.070  +02 14 38.78  22.2w 04SC60    F51  C~1vVL      
2010 10  03.41399  00 19 33.99   +02 14 38.2   22.6w 04SC60    F51  C~0STw      
2010 10  03.41471  00 19 33.991  +02 14 38.21  22.2w 04SC60    F51  C~1vVL      
2010 10  03.42789  00 19 33.91   +02 14 37.8   22.4w 04SC60    F51  C~0STw      
2012 11  05.29713  00 31 57.732  +03 39 17.49  22.1w 04SC60    F51  C~1vVL      
2012 11  05.31221  00 31 57.668  +03 39 17.14  22.2w 04SC60    F51  C~1vVL      
2012 11  05.32730  00 31 57.608  +03 39 16.65  22.1w 04SC60    F51  C~1vVL      
2014 07  30.57391  00 54 29.752  +06 05 56.62  22.4w 04SC60    F51  C~1vVL      
2014 07  30.58633  00 54 29.740  +06 05 56.49  22.4w 04SC60    F51  C~1vVL      
2014 07  30.59884  00 54 29.723  +06 05 56.38  22.5w 04SC60    F51  C~1vVL      
2014 07  30.61140  00 54 29.710  +06 05 56.13  22.4w 04SC60    F51  C~1vVL      
2014 08  27.53176  00 53 16.454  +05 58 39.87  22.4w 04SC60    F51  C~1vVL      
2014 08  27.54539  00 53 16.390  +05 58 39.52  22.1w 04SC60    F51  C~1vVL      
2014 08  27.55899  00 53 16.331  +05 58 38.99  22.4w 04SC60    F51  C~1vVL      
2014 08  27.57262  00 53 16.285  +05 58 38.67  22.3w 04SC60    F51  C~1vVM      
2014 09  18.43544  00 51 36.620  +05 48 27.72  22.3w 04SC60    F51  C~1vVM      
2014 09  18.44761  00 51 36.553  +05 48 27.46  22.2w 04SC60    F51  C~1vVM      
2014 09  18.45978  00 51 36.497  +05 48 26.96  22.1w 04SC60    F51  C~1vVM      
2014 09  18.47203  00 51 36.456  +05 48 26.51  22.2w 04SC60    F51  C~1vVM      

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    -0.14       0.00    -0.19
  2   0.0001     -3.86    -0.13       0.14    -0.09
  3   0.0028    -84.40     0.03       0.66     0.12
  4   0.0029    -88.12    -0.07       0.74     0.16
  5   1.9905  14269.31     0.27     238.68    -0.22
  6   1.9905  14269.31     0.34     238.68    -0.22
  7   1.9905  14269.31 (   0.56)    238.68 (  -0.22)
  8   5.9802  44185.58     0.21     742.92     0.07
  9   5.9802  44185.46     0.14     743.01     0.15
 10   5.9802  44184.61     0.11     742.66    -0.20
 11   5.9802  44183.58    -0.11     742.65    -0.22
 12   5.9802  44183.60    -0.07     742.81    -0.06
 13   5.9802  44182.66    -0.23     743.26     0.39
 14   5.9803  44182.62 (  -0.22)    743.36 (   0.48)
 15   5.9828  44101.40    -0.05     743.20     0.03
 16   5.9828  44100.33    -0.06     743.10    -0.09
 17   5.9828  44100.30    -0.07     743.14    -0.04
 18   5.9828  44099.34    -0.04     743.18    -0.02
 19   5.9828  44099.35    -0.01     743.21     0.01
 20   5.9829  44098.31    -0.07     743.17    -0.04
 21   5.9829  44098.30    -0.07     743.18    -0.02
 22   6.0292  42570.04    -0.15     748.91     0.15
 23   6.0292  42569.93    -0.20     748.93     0.18
 24   6.0292  42568.97    -0.00     748.80     0.04
 25   6.0292  42569.00     0.10     748.88     0.11
 26   6.0293  42567.61    -0.02     748.82     0.04
 27   6.0293  42567.63     0.07     748.82     0.04
 28   6.0293  42566.30    -0.05     748.93     0.13
 29   8.1206  55504.30     0.05    1026.83     0.12
 30   8.1207  55503.21     0.10    1026.89     0.17
 31   8.1207  55502.12     0.14    1026.79     0.05
 32   9.8517  79932.89    -0.02    1275.73    -0.02
 33   9.8518  79932.65     0.04    1275.67    -0.09
 34   9.8518  79932.33     0.04    1275.67    -0.11
 35   9.8518  79932.01     0.03    1275.50    -0.30
 36   9.9283  78581.87     0.26    1295.26     0.05
 37   9.9283  78580.71     0.09    1295.31     0.08
 38   9.9283  78579.54    -0.09    1295.15    -0.10
 39   9.9284  78578.68     0.04    1295.11    -0.15
 40   9.9882  76743.12    -0.22    1306.00     0.04
 41   9.9883  76741.95    -0.22    1306.15     0.18
 42   9.9883  76740.85    -0.14    1306.00     0.02
 43   9.9883  76740.01     0.19    1305.81    -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.

04SC60    quality flag:3

Type:         7:4EEE    7:4EEE    7:4EEE

axisobj        44.048    44.063    44.033
ecceobj         0.270     0.270     0.270
incobj          0.985     0.985     0.985
qmin           31.658    31.645    31.651
qmax           56.364    56.429    56.362
amean          43.726    43.726    43.726
amin           43.289    43.294    43.288
amax           44.262    44.245    44.242
emean           0.263     0.263     0.263
emin            0.250     0.251     0.251
emax            0.275     0.275     0.275
imean           1.525     1.456     1.596
imin            0.934     0.878     1.036
imax            2.300     2.301     2.297
excite_mean     0.264     0.264     0.264
fracstop        1.000     1.000     1.000
cjmean          3.013     3.013     3.013

libcent 0       180.9     181.3     180.8
libamp  0        51.2      45.6      53.9
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       173.0     163.4     181.1
kozaiamp        175.4     178.4     178.0