Orbit Fit and Astrometric record for 508869

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: 508869    
# Created Tue Oct 16 06:34:41 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   58 observations of   58
# Arc:  14.39y
# First observation: 2002/11/07
#  Last observation: 2017/03/29
# Chi-squared of fit:    45.67 DOF:  110 RMS:  0.16
# Min/Max residuals:    -0.68    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.383191E-05  2.300891E-02  2.183961E-07  3.503213E-05  2.397984E-02  8.839328E-04
# 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
    1.184807   60.229203    0.268530    0.019646   -0.950892  2452585.836433
# Heliocentric elements and errors
Epoch:              2452586.5000  =  2002/11/08
Mean Anomaly:           88.85700 +/-     0.000
Argument of Peri:      352.68666 +/-     0.000
Long of Asc Node:      334.94298 +/-     0.000
Inclination:             1.16283 +/-     0.000
Eccentricity:         0.02958831 +/-    0.0000
Semi-Major Axis:     42.64515524 +/-    0.0000
Time of Perihelion: 2427479.6572 +/-       0.0
Perihelion:          41.38335711 +/-    0.0000
Aphelion:            43.90695336 +/-    0.0000
Period (y)              278.4920 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.40565714 +/-    0.0000
Ecliptic Y           36.88761971 +/-    0.0000
Ecliptic Z            0.86229191 +/-    0.0000
Ecliptic XDOT        -0.00223767 +/-    0.0000
Ecliptic YDOT         0.00138846 +/-    0.0000
Ecliptic ZDOT         0.00000629 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.65724554 +/-    0.0000
Geocenter to KBO     41.70171146 +/-    0.0000
# Hcoef:  5.80

The following table shows the complete astrometric record for 508869. 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 (508869) followed by the observatory code and reference code for the source of the astrometry.

2002 11  07.33569  03 51 09.53   +21 21 24.6   21.4R 508869    695  Cg8319      
2002 11  07.43154  03 51 09.05   +21 21 23.2         508869    695  Cg8319      
2002 11  27.20347  03 49 28.97   +21 16 21.3   21.5R 508869    688  Cg8319      
2002 11  27.25209  03 49 28.71   +21 16 20.6         508869    688  Cg8319      
2002 11  28.19340  03 49 23.95   +21 16 05.5   21.5R 508869    688  Cg8319      
2002 11  28.28642  03 49 23.47   +21 16 04.0         508869    688  Cg8319      
2002 12  02.22297  03 49 03.61   +21 15 02.1   21.4R 508869    688  Cg8319      
2002 12  02.33831  03 49 03.03   +21 15 00.5         508869    688  Cg8319      
2002 12  02.37072  03 49 02.85   +21 14 59.3         508869    688  Cg8319      
2003 01  03.11302  03 46 43.91   +21 07 22.8   21.8R 508869    688  Ch0066      
2003 01  03.22718  03 46 43.49   +21 07 21.6         508869    688  Ch0066      
2003 11  20.30762  03 55 38.19   +21 34 56.1   21.4R 508869    695  Cj7011      
2003 11  20.38911  03 55 37.77   +21 34 54.9         508869    695  Cj7011      
2004 01  14.06667  03 51 40.05   +21 22 29.0   21.6R 508869    304  Cj7011      
2004 01  14.08884  03 51 39.98   +21 22 28.8         508869    304  Cj7011      
2004 01  14.10438  03 51 39.94   +21 22 28.7         508869    304  Cj7011      
2004 02  16.80987  03 51 02.10   +21 19 39.3   21.8R 508869    493  Cs6919      
2004 02  16.82146  03 51 02.11   +21 19 39.3   21.8R 508869    493  Cs6919      
2004 02  16.82839  03 51 02.11   +21 19 39.3   21.8R 508869    493  Cs6919      
2004 02  16.88524  03 51 02.14   +21 19 39.4   21.7R 508869    493  Cs6919      
2004 02  16.89259  03 51 02.14   +21 19 39.3   21.7R 508869    493  Cs6919      
2004 02  16.90001  03 51 02.14   +21 19 39.3   21.8R 508869    493  Cs6919      
2004 02  17.81571  03 51 02.71   +21 19 39.4   21.8R 508869    493  Cs6919      
2004 02  17.87784  03 51 02.75   +21 19 39.5   21.7R 508869    493  Cs6919      
2004 02  17.92295  03 51 02.78   +21 19 39.5   21.8R 508869    493  Cs6919      
2006 01  30.11317  04 02 02.14   +21 52 18.7   22.0R 508869    688  Cq1750      
2006 01  30.25637  04 02 01.93   +21 52 18.2         508869    688  Cq1750      
2008 09  21.91976  04 26 58.02   +22 54 14.9   23.3R 508869    250  S~06Aa      
2008 09  21.92601  04 26 58.01   +22 54 14.9         508869    250  S~06Aa      
2008 09  21.93296  04 26 58.00   +22 54 14.9         508869    250  S~06Aa      
2008 09  21.93921  04 26 58.00   +22 54 14.8         508869    250  S~06Aa      
2008 12  28.33039  04 20 14.15   +22 39 44.2   22.2R 508869    688  C~02cQ      
2008 12  28.38950  04 20 13.86   +22 39 43.5         508869    688  C~02cQ      
2010 10  11.47222  04 37 24.446  +23 16 04.56  22.1w 508869    F51  C~1vVD      
2010 10  11.48624  04 37 24.413  +23 16 04.21  22.5w 508869    F51  C~1vVD      
2010 10  11.50059  04 37 24.376  +23 16 04.40  22.4w 508869    F51  C~1vVD      
2010 10  11.51467  04 37 24.322  +23 16 04.34  22.2w 508869    F51  C~1vVD      
2011 10  25.42627  04 42 14.921  +23 25 19.84  22.4w 508869    F51  C~1vVD      
2011 10  25.44078  04 42 14.870  +23 25 19.80  22.3w 508869    F51  C~1vVD      
2011 10  25.45522  04 42 14.816  +23 25 19.66  22.3w 508869    F51  C~1vVD      
2011 10  25.46967  04 42 14.759  +23 25 19.61  22.1w 508869    F51  C~1vVD      
2014 12  01.32129  04 56 15.934  +23 48 25.17  21.4i 508869    F51  C~1vVD      
2014 12  01.33327  04 56 15.899  +23 48 25.27  21.4i 508869    F51  C~1vVD      
2014 12  01.35717  04 56 15.760  +23 48 24.85  21.4i 508869    F51  C~1vVD      
2014 12  13.29539  04 55 12.927  +23 46 48.68  22.1w 508869    F51  C~1vVD      
2014 12  13.30799  04 55 12.829  +23 46 48.71  21.9w 508869    F51  C~1vVD      
2014 12  13.32068  04 55 12.797  +23 46 48.83  21.9w 508869    F51  C~1vVD      
2014 12  13.33338  04 55 12.714  +23 46 48.56  22.0w 508869    F51  C~1vVD      
2015 01  22.34843  04 52 12.950  +23 41 34.06  22.1w 508869    F51  C~1vVD      
2015 01  22.36237  04 52 12.905  +23 41 34.08  22.3w 508869    F51  C~1vVD      
2015 01  22.37629  04 52 12.874  +23 41 33.98  22.1w 508869    F51  C~1vVD      
2015 01  22.39018  04 52 12.818  +23 41 33.83  22.2w 508869    F51  C~1vVD      
2015 01  24.33193  04 52 06.629  +23 41 21.22  22.2w 508869    F51  C~1vVD      
2015 01  24.34645  04 52 06.589  +23 41 21.38  22.1w 508869    F51  C~1vVD      
2015 01  24.36097  04 52 06.530  +23 41 20.95  22.1w 508869    F51  C~1vVD      
2017 03  24.22518  05 02 48.963  +23 55 00.51  22.1w 508869    568  C~2WX9      
2017 03  24.26197  05 02 49.058  +23 55 00.65  22.5w 508869    568  C~2WX9      
2017 03  29.23464  05 03 02.761  +23 55 11.27  22.6w 508869    568  C~2WX9      

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     0.35       0.00     0.03
  2   0.0003      0.00     0.32       0.00     0.02
  3   0.0544      0.00    -0.27       0.00     0.06
  4   0.0545      0.00    -0.41       0.00     0.12
  5   0.0571      0.00    -0.10       0.00    -0.12
  6   0.0574      0.00    -0.11       0.00    -0.16
  7   0.0681      0.00     0.02       0.00     0.05
  8   0.0685      0.00     0.13       0.00     0.27
  9   0.0685      0.00    -0.10       0.00    -0.41
 10   0.1554      0.00     0.30       0.00    -0.08
 11   0.1558      0.00     0.05       0.00     0.09
 12   1.0348      0.00    -0.17       0.00    -0.11
 13   1.0351      0.00    -0.11       0.00    -0.09
 14   1.1848      0.00     0.11       0.00    -0.09
 15   1.1848      0.00    -0.01       0.00    -0.08
 16   1.1849      0.00     0.04       0.00    -0.02
 17   1.2771      0.00     0.09       0.00    -0.03
 18   1.2772      0.00     0.15       0.00    -0.03
 19   1.2772      0.00     0.10       0.00    -0.02
 20   1.2773      0.00     0.12       0.00     0.09
 21   1.2774      0.00     0.07       0.00    -0.01
 22   1.2774      0.00     0.01       0.00    -0.01
 23   1.2799      0.00     0.05       0.00    -0.05
 24   1.2801      0.00     0.08       0.00     0.04
 25   1.2802      0.00     0.11       0.00     0.04
 26   3.2301      0.00     0.20       0.00    -0.07
 27   3.2304      0.00     0.29       0.00     0.26
 28   5.8743      0.00    -0.01       0.00     0.22
 29   5.8743      0.00    -0.04       0.00     0.22
 30   5.8743      0.00    -0.06       0.00     0.23
 31   5.8743      0.00     0.06       0.00     0.14
 32   6.1410      0.00    -0.26       0.00     0.12
 33   6.1411      0.00    -0.68       0.00     0.11
 34   7.9265      0.00     0.06       0.00     0.14
 35   7.9265      0.00     0.17       0.00    -0.16
 36   7.9265      0.00     0.23       0.00     0.09
 37   7.9266      0.00     0.03       0.00     0.08
 38   8.9640      0.00     0.08       0.00     0.02
 39   8.9640      0.00     0.15       0.00     0.06
 40   8.9641      0.00     0.18       0.00     0.00
 41   8.9641      0.00     0.16       0.00     0.03
 42  12.0657      0.00    -0.12       0.00    -0.08
 43  12.0657      0.00     0.31       0.00     0.11
 44  12.0658      0.00     0.13       0.00    -0.13
 45  12.0985      0.00     0.15       0.00    -0.17
 46  12.0985      0.00    -0.31       0.00    -0.04
 47  12.0985      0.00     0.22       0.00     0.18
 48  12.0986      0.00    -0.01       0.00     0.01
 49  12.2081      0.00    -0.08       0.00    -0.12
 50  12.2081      0.00    -0.05       0.00    -0.01
 51  12.2082      0.00     0.18       0.00    -0.02
 52  12.2082      0.00     0.04       0.00    -0.07
 53  12.2135      0.00     0.04       0.00    -0.16
 54  12.2136      0.00     0.13       0.00     0.10
 55  12.2136      0.00    -0.06       0.00    -0.24
 56  14.3762      0.00    -0.08       0.00    -0.03
 57  14.3763      0.00    -0.01       0.00     0.05
 58  14.3899      0.00    -0.04       0.00     0.07

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.

508869    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.787    42.787    42.787
ecceobj         0.034     0.034     0.034
incobj          1.162     1.162     1.162
qmin           39.974    39.972    39.976
qmax           45.237    45.246    45.241
amean          42.489    42.490    42.490
amin           42.157    42.160    42.156
amax           42.835    42.835    42.834
emean           0.034     0.034     0.034
emin            0.006     0.006     0.006
emax            0.057     0.057     0.056
imean           2.780     2.780     2.780
imin            1.241     1.241     1.240
imax            3.708     3.709     3.707
excite_mean     0.060     0.060     0.060
fracstop        1.000     1.000     1.000
cjmean          3.079     3.079     3.079

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       192.5     192.4     192.3
kozaiamp        180.0     180.0     180.0