Orbit Fit and Astrometric record for 469584

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: 469584    
# Created Thu Dec 14 02:36:49 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   42 observations of   42
# Arc:  11.29y
# First observation: 2003/12/24
#  Last observation: 2015/04/10
# Chi-squared of fit:   268.08 DOF:   78 RMS:  0.45
# Min/Max residuals:    -0.87    1.75
# Exact a, adot, b, bdot, g, gdot:
  2.077643E-05  3.244491E-02  1.414528E-06  1.304206E-03  2.874408E-02  1.082406E-05
# 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
    0.619819  112.382244    0.341858    0.010012   -0.919069  2452997.971253
# Heliocentric elements and errors
Epoch:              2452998.5000  =  2003/12/25
Mean Anomaly:          356.86263 +/-     0.000
Argument of Peri:       19.06005 +/-     0.000
Long of Asc Node:       97.17682 +/-     0.000
Inclination:             2.38442 +/-     0.000
Eccentricity:         0.15958497 +/-    0.0000
Semi-Major Axis:     42.47903420 +/-    0.0000
Time of Perihelion: 2453879.8000 +/-       0.0
Perihelion:          35.70001900 +/-    0.0000
Aphelion:            49.25804940 +/-    0.0000
Period (y)              276.8663 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -13.28455274 +/-    0.0000
Ecliptic Y           33.14963856 +/-    0.0000
Ecliptic Z            0.37638452 +/-    0.0000
Ecliptic XDOT        -0.00286166 +/-    0.0000
Ecliptic YDOT        -0.00118337 +/-    0.0000
Ecliptic ZDOT         0.00012438 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.71442299 +/-    0.0000
Geocenter to KBO     34.78981115 +/-    0.0000
# Hcoef:  6.82

The following table shows the complete astrometric record for 469584. 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 (469584) followed by the observatory code and reference code for the source of the astrometry.

2003 12  24.47051  07 37 07.62   +22 11 31.7   23.1g 469584    568  Cq9908      
2003 12  24.49375  07 37 07.49   +22 11 32.1   22.9g 469584    568  Cq9908      
2003 12  24.51699  07 37 07.35   +22 11 32.4   23.0g 469584    568  Cq9908      
2003 12  25.51227  07 37 01.74   +22 11 46.3         469584    568  Cq9908      
2004 04  15.16979  07 30 20.54   +22 26 55.7         469584    675  Cq9908      
2004 04  15.22131  07 30 20.62   +22 26 55.5         469584    675  Cq9908      
2004 04  16.20545  07 30 22.38   +22 26 51.3         469584    675  Cq9908      
2004 09  16.48471  07 46 22.10   +21 50 57.6         469584    675  Cq9908      
2004 09  16.49892  07 46 22.13   +21 50 57.2         469584    675  Cq9908      
2004 09  17.47319  07 46 26.75   +21 50 47.8         469584    675  Cq9908      
2004 09  17.49207  07 46 26.82   +21 50 47.6         469584    675  Cq9908      
2004 09  17.51728  07 46 26.95   +21 50 47.3         469584    675  Cq9908      
2004 09  18.45075  07 46 31.23   +21 50 38.9         469584    675  Cq9908      
2004 09  18.50874  07 46 31.49   +21 50 37.7         469584    675  Cq9908      
2005 10  03.45813  07 55 06.23   +21 32 53.9   22.4  469584    675  Cq9908      
2005 10  03.49844  07 55 06.36   +21 32 53.6   22.5  469584    675  Cq9908      
2005 10  03.53197  07 55 06.46   +21 32 53.4   22.5  469584    675  Cq9908      
2005 10  04.49429  07 55 09.42   +21 32 46.8         469584    675  Cq9908      
2005 10  04.53030  07 55 09.51   +21 32 46.5         469584    675  Cq9908      
2008 12  22.46152  08 16 42.48   +20 44 25.8   21.7r 469584    695  C~0hkR      
2008 12  22.54985  08 16 42.06   +20 44 27.3   21.8r 469584    695  C~0hkR      
2009 02  26.18145  08 10 40.36   +21 04 06.2   22.5R 469584    688  C~04qD      
2009 02  26.27992  08 10 39.89   +21 04 07.8         469584    688  C~04qD      
2009 03  24.13205  08 09 14.42   +21 08 12.5   22.6R 469584    688  C~05Wl      
2009 03  24.27909  08 09 14.16   +21 08 13.3         469584    688  C~05Wl      
2010 03  19.13449  08 17 10.40   +20 47 43.3         469584    675  C~0WzD      
2010 03  19.16564  08 17 10.31   +20 47 43.2         469584    675  C~0WzD      
2011 01  30.46977  08 28 39.557  +20 13 40.20  22.3w 469584    F51  C~1vVJ      
2011 01  30.48495  08 28 39.464  +20 13 40.56  22.4w 469584    F51  C~1vVJ      
2011 01  30.50124  08 28 39.374  +20 13 40.88  22.5w 469584    F51  C~1vVJ      
2011 01  30.51635  08 28 39.288  +20 13 41.11  22.3w 469584    F51  C~1vVJ      
2015 01  16.53425  09 00 36.728  +18 27 12.97  22.4w 469584    F51  C~1vVJ      
2015 01  16.54650  09 00 36.658  +18 27 13.07  22.5w 469584    F51  C~1vVJ      
2015 01  16.55878  09 00 36.592  +18 27 13.59  22.8w 469584    F51  C~1vVJ      
2015 01  16.57109  09 00 36.525  +18 27 13.84  22.6w 469584    F51  C~1vVJ      
2015 02  16.28998  08 57 43.586  +18 39 33.11  22.4w 469584    F51  C~1vVJ      
2015 02  16.30230  08 57 43.511  +18 39 33.25  22.4w 469584    F51  C~1vVJ      
2015 02  16.31468  08 57 43.444  +18 39 33.78  22.2w 469584    F51  C~1vVJ      
2015 02  16.32704  08 57 43.369  +18 39 33.92  22.5w 469584    F51  C~1vVJ      
2015 04  10.30564  08 54 24.766  +18 52 12.66  22.6w 469584    F51  C~1vVJ      
2015 04  10.31749  08 54 24.762  +18 52 12.93  22.6w 469584    F51  C~1vVJ      
2015 04  10.32928  08 54 24.741  +18 52 12.85  22.5w 469584    F51  C~1vVJ      

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    -0.06       0.00     0.14
  2   0.0001      0.00    -0.56       0.00     0.02
  3   0.0001      0.00    -0.67       0.00    -0.01
  4   0.0029      0.00    -0.78       0.00    -0.12
  5   0.3086      0.00    -0.04       0.00    -0.23
  6   0.3087      0.00    -0.12       0.00    -0.21
  7   0.3114      0.00    -0.16       0.00    -0.28
  8   0.7310      0.00     0.15       0.00     0.17
  9   0.7311      0.00    -0.38       0.00    -0.09
 10   0.7338      0.00     1.12       0.00     0.26
 11   0.7338      0.00     0.88       0.00     0.24
 12   0.7339      0.00     1.12       0.00     0.18
 13   0.7364      0.00     1.72       0.00     0.91
 14   0.7366      0.00     1.75       0.00     0.24
 15   1.7768      0.00    -0.87       0.00     0.08
 16   1.7769      0.00    -0.76       0.00     0.03
 17   1.7770      0.00    -0.79       0.00     0.04
 18   1.7797      0.00    -0.48       0.00    -0.42
 19   1.7798      0.00    -0.71       0.00    -0.51
 20   4.9966      0.00    -0.40       0.00     0.07
 21   4.9968      0.00    -0.12       0.00     0.06
 22   5.1765      0.00     0.15       0.00    -0.20
 23   5.1768      0.00    -0.14       0.00     0.08
 24   5.2475      0.00    -0.17       0.00    -0.01
 25   5.2479      0.00     0.49       0.00     0.06
 26   6.2332      0.00     0.18       0.00     0.19
 27   6.2333      0.00     0.15       0.00    -0.16
 28   7.1020      0.00     0.03       0.00    -0.21
 29   7.1020      0.00    -0.01       0.00    -0.17
 30   7.1021      0.00     0.09       0.00    -0.19
 31   7.1021      0.00     0.14       0.00    -0.27
 32  11.0638      0.00    -0.07       0.00     0.11
 33  11.0639      0.00    -0.11       0.00    -0.08
 34  11.0639      0.00    -0.08       0.00     0.14
 35  11.0639      0.00    -0.07       0.00     0.10
 36  11.1480      0.00     0.16       0.00     0.01
 37  11.1481      0.00     0.06       0.00    -0.13
 38  11.1481      0.00     0.09       0.00     0.11
 39  11.1481      0.00    -0.00       0.00    -0.03
 40  11.2932      0.00     0.14       0.00    -0.08
 41  11.2932      0.00     0.34       0.00     0.15
 42  11.2932      0.00     0.27       0.00     0.02

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.

469584    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.348    42.348    42.349
ecceobj         0.157     0.157     0.157
incobj          2.384     2.384     2.384
qmin           34.777    34.778    34.775
qmax           50.486    50.484    50.487
amean          42.328    42.328    42.328
amin           41.847    41.847    41.847
amax           42.849    42.849    42.849
emean           0.158     0.158     0.158
emin            0.139     0.139     0.139
emax            0.178     0.178     0.178
imean           1.273     1.275     1.271
imin            0.127     0.127     0.127
imax            2.319     2.310     2.331
excite_mean     0.160     0.160     0.160
fracstop        1.000     1.000     1.000
cjmean          3.051     3.051     3.051

libcent 0       180.9     180.9     181.0
libamp  0       111.7     111.7     111.6
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       180.4     180.4     180.5
kozaiamp        179.9     179.9     180.0