Orbit Fit and Astrometric record for 469509

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: 469509    
# Created Wed Dec 13 02:36:49 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   55 observations of   55
# Arc:  13.12y
# First observation: 2003/04/26
#  Last observation: 2016/06/08
# Chi-squared of fit:    79.12 DOF:  104 RMS:  0.21
# Min/Max residuals:    -0.70    0.69
# Exact a, adot, b, bdot, g, gdot:
  1.543687E-05  2.254929E-02 -2.852160E-07  3.272002E-04  2.354249E-02 -1.654132E-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
   -0.633832 -163.036537   -0.327063   -0.010538   -0.952376  2452755.835333
# Heliocentric elements and errors
Epoch:              2452756.5000  =  2003/04/27
Mean Anomaly:          288.54186 +/-     0.000
Argument of Peri:       42.31654 +/-     0.000
Long of Asc Node:      233.76622 +/-     0.000
Inclination:             1.04512 +/-     0.000
Eccentricity:         0.06506703 +/-    0.0000
Semi-Major Axis:     44.17160241 +/-    0.0000
Time of Perihelion: 2474040.9464 +/-       0.0
Perihelion:          41.29748724 +/-    0.0000
Aphelion:            47.04571757 +/-    0.0000
Period (y)              293.5776 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.44329932 +/-    0.0000
Ecliptic Y          -12.97931010 +/-    0.0000
Ecliptic Z           -0.46987544 +/-    0.0000
Ecliptic XDOT         0.00094252 +/-    0.0000
Ecliptic YDOT        -0.00245718 +/-    0.0000
Ecliptic ZDOT         0.00004036 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.43079378 +/-    0.0000
Geocenter to KBO     42.47647033 +/-    0.0000
# Hcoef:  5.85

The following table shows the complete astrometric record for 469509. 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 (469509) followed by the observatory code and reference code for the source of the astrometry.

2003 04  26.33459  13 01 33.65   -07 14 59.9   21.6R 469509    568  Cq9883      
2003 04  26.37682  13 01 33.47   -07 14 58.8   21.6R 469509    568  Cq9883      
2003 04  26.41922  13 01 33.29   -07 14 57.9   21.6R 469509    568  Cq9883      
2003 04  27.38616  13 01 29.36   -07 14 32.6   21.7R 469509    568  Cq9883      
2003 05  30.28314  12 59 40.20   -07 02 52.3   22.1R 469509    568  Cq9883      
2003 05  30.29396  12 59 40.16   -07 02 51.7   22.5R 469509    568  Cq9883      
2003 05  30.33633  12 59 40.06   -07 02 51.4   22.4R 469509    568  Cq9883      
2003 05  30.34722  12 59 40.03   -07 02 51.0   22.3R 469509    568  Cq9883      
2003 05  30.38312  12 59 39.94   -07 02 50.7   21.9R 469509    568  Cq9883      
2003 05  30.39406  12 59 39.91   -07 02 50.2   22.3R 469509    568  Cq9883      
2003 07  26.04211  12 59 33.40   -07 01 08.2         469509    809  Cq9883      
2003 07  26.97578  12 59 35.51   -07 01 20.3         469509    809  Cq9883      
2003 07  28.98844  12 59 40.28   -07 01 47.7         469509    809  Cq9883      
2003 07  29.02059  12 59 40.36   -07 01 48.2         469509    809  Cq9883      
2004 03  20.57617  13 09 00.67   -07 59 37.4         469509    568  Cq9883      
2004 03  29.52825  13 08 22.69   -07 55 46.7   22.6R 469509    568  Cq9883      
2004 03  29.55130  13 08 22.61   -07 55 46.1   22.6R 469509    568  Cq9883      
2004 03  29.57977  13 08 22.48   -07 55 45.2   22.7R 469509    568  Cq9883      
2005 07  11.06073  13 08 40.97   -07 55 08.8   22.0R 469509    809  Cq9883      
2005 07  11.99790  13 08 41.78   -07 55 12.6   22.2R 469509    809  Cq9883      
2008 04  04.33794  13 27 42.82   -09 46 27.5   21.9R 469509    688  Cy5707      
2008 04  04.42610  13 27 42.41   -09 46 25.4         469509    688  Cy5707      
2014 02  25.57326  14 00 17.132  -12 41 20.23  22.4w 469509    F51  C~1vVF      
2014 02  25.58588  14 00 17.102  -12 41 20.10  22.2w 469509    F51  C~1vVF      
2014 02  25.59849  14 00 17.072  -12 41 19.68  22.0w 469509    F51  C~1vVF      
2014 02  25.61107  14 00 17.033  -12 41 19.67  22.0w 469509    F51  C~1vVF      
2014 04  05.51987  13 58 03.371  -12 29 25.40  22.1w 469509    F51  C~1vVF      
2014 04  05.53045  13 58 03.320  -12 29 24.93  21.9w 469509    F51  C~1vVF      
2014 04  05.54101  13 58 03.273  -12 29 24.89  21.9w 469509    F51  C~1vVF      
2014 04  05.55156  13 58 03.213  -12 29 24.84  22.2w 469509    F51  C~1vVF      
2014 04  29.44376  13 56 15.504  -12 19 36.71  22.1w 469509    F51  C~1vVF      
2014 04  29.45676  13 56 15.422  -12 19 36.42  22.0w 469509    F51  C~1vVF      
2014 04  29.46979  13 56 15.367  -12 19 35.99  21.9w 469509    F51  C~1vVF      
2014 04  29.48280  13 56 15.306  -12 19 35.75  22.0w 469509    F51  C~1vVF      
2014 05  20.33390  13 54 46.437  -12 11 22.87  22.1w 469509    F51  C~1vVF      
2014 05  20.34686  13 54 46.385  -12 11 22.51  22.1w 469509    F51  C~1vVF      
2014 05  20.35979  13 54 46.350  -12 11 22.30  22.2w 469509    F51  C~1vVF      
2014 05  20.37272  13 54 46.287  -12 11 22.04  22.1w 469509    F51  C~1vVF      
2015 03  17.54842  14 04 30.055  -13 02 25.74  22.3w 469509    F51  C~1vVF      
2015 03  17.56151  14 04 30.010  -13 02 25.54  22.2w 469509    F51  C~1vVF      
2015 03  17.57450  14 04 29.959  -13 02 25.14  22.5w 469509    F51  C~1vVF      
2015 03  17.58753  14 04 29.905  -13 02 25.09  22.4w 469509    F51  C~1vVF      
2015 04  23.38869  14 01 55.015  -12 48 40.32  22.3w 469509    F51  C~1vVF      
2015 04  23.40118  14 01 54.947  -12 48 40.02  21.9w 469509    F51  C~1vVF      
2015 04  23.41371  14 01 54.889  -12 48 39.66  21.8w 469509    F51  C~1vVF      
2015 04  23.42619  14 01 54.838  -12 48 39.34  21.7w 469509    F51  C~1vVF      
2015 04  25.02120  14 01 47.54   -12 47 59.6   22.2V 469509    W84  C~2KNp      
2015 04  25.05566  14 01 47.38   -12 47 58.8         469509    W84  C~2KNp      
2015 04  25.09017  14 01 47.21   -12 47 58.0         469509    W84  C~2KNp      
2015 06  10.30645  13 58 44.717  -12 31 17.14  22.1w 469509    F51  C~1vVF      
2015 06  10.32027  13 58 44.660  -12 31 17.20  21.9w 469509    F51  C~1vVF      
2015 06  10.33406  13 58 44.656  -12 31 16.76  22.2w 469509    F51  C~1vVF      
2015 06  10.34784  13 58 44.574  -12 31 16.26  22.2w 469509    F51  C~1vVF      
2016 06  08.18977  14 03 58.815  -12 57 51.05  21.6R 469509    G37              
2016 06  08.23389  14 03 58.670  -12 57 50.21        469509    G37              

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     0.69
  2   0.0001      0.00    -0.02       0.00     0.11
  3   0.0002      0.00    -0.06       0.00    -0.09
  4   0.0029      0.00     0.23       0.00     0.29
  5   0.0929      0.00     0.37       0.00    -0.04
  6   0.0930      0.00     0.16       0.00     0.39
  7   0.0931      0.00     0.21       0.00     0.03
  8   0.0931      0.00     0.16       0.00     0.26
  9   0.0932      0.00     0.11       0.00    -0.00
 10   0.0932      0.00     0.06       0.00     0.33
 11   0.2483      0.00    -0.54       0.00     0.30
 12   0.2509      0.00    -0.34       0.00     0.17
 13   0.2564      0.00     0.06       0.00     0.02
 14   0.2565      0.00     0.11       0.00    -0.03
 15   0.9014      0.00    -0.12       0.00     0.01
 16   0.9259      0.00    -0.21       0.00    -0.68
 17   0.9260      0.00     0.11       0.00    -0.70
 18   0.9261      0.00     0.04       0.00    -0.55
 19   2.2087      0.00    -0.04       0.00    -0.33
 20   2.2113      0.00     0.08       0.00    -0.27
 21   4.9418      0.00     0.06       0.00     0.39
 22   4.9421      0.00    -0.18       0.00     0.20
 23  10.8371      0.00    -0.03       0.00    -0.19
 24  10.8371      0.00    -0.05       0.00    -0.20
 25  10.8371      0.00    -0.07       0.00     0.08
 26  10.8372      0.00    -0.23       0.00    -0.06
 27  10.9437      0.00     0.25       0.00    -0.02
 28  10.9437      0.00     0.19       0.00     0.20
 29  10.9438      0.00     0.19       0.00    -0.01
 30  10.9438      0.00    -0.01       0.00    -0.21
 31  11.0092      0.00     0.28       0.00    -0.07
 32  11.0092      0.00    -0.05       0.00    -0.10
 33  11.0093      0.00     0.02       0.00     0.01
 34  11.0093      0.00     0.00       0.00    -0.08
 35  11.0664      0.00     0.06       0.00    -0.06
 36  11.0664      0.00     0.05       0.00     0.02
 37  11.0665      0.00     0.30       0.00    -0.05
 38  11.0665      0.00     0.13       0.00    -0.07
 39  11.8911      0.00     0.06       0.00    -0.05
 40  11.8911      0.00     0.08       0.00    -0.09
 41  11.8911      0.00     0.01       0.00     0.07
 42  11.8912      0.00    -0.10       0.00    -0.12
 43  11.9919      0.00     0.17       0.00    -0.09
 44  11.9920      0.00     0.02       0.00    -0.09
 45  11.9920      0.00     0.03       0.00    -0.04
 46  11.9920      0.00     0.14       0.00    -0.03
 47  11.9964      0.00     0.12       0.00     0.12
 48  11.9965      0.00     0.11       0.00     0.08
 49  11.9966      0.00    -0.04       0.00     0.03
 50  12.1231      0.00     0.03       0.00     0.14
 51  12.1232      0.00    -0.22       0.00    -0.14
 52  12.1232      0.00     0.32       0.00     0.08
 53  12.1232      0.00    -0.31       0.00     0.36
 54  13.1194      0.00     0.33       0.00     0.15
 55  13.1195      0.00     0.20       0.00     0.26

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.

469509    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.776    43.776    43.776
ecceobj         0.065     0.065     0.065
incobj          1.046     1.046     1.046
qmin           40.489    40.474    40.498
qmax           47.922    47.894    47.899
amean          44.089    44.089    44.089
amin           43.747    43.748    43.745
amax           44.456    44.458    44.451
emean           0.062     0.062     0.062
emin            0.046     0.046     0.046
emax            0.079     0.078     0.078
imean           2.827     2.827     2.828
imin            2.145     2.145     2.145
imax            3.457     3.457     3.457
excite_mean     0.080     0.080     0.080
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     3.095

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       173.3     173.4     173.4
kozaiamp        180.0     180.0     180.0