Orbit Fit and Astrometric record for 506479

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: 506479    
# Created Mon Apr 22 01:07:08 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   23 observations of   23
# Arc:  13.94y
# First observation: 2003/04/26
#  Last observation: 2017/04/02
# Chi-squared of fit:    23.65 DOF:   40 RMS:  0.18
# Min/Max residuals:    -0.43    0.38
# Exact a, adot, b, bdot, g, gdot:
  2.015027E-05  3.440372E-02  5.168838E-06  9.546367E-03  2.667141E-02 -3.466956E-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
   -0.242849 -163.481508   -0.334450   -0.004028   -0.949857  2452755.835333
# Heliocentric elements and errors
Epoch:              2452756.5000  =  2003/04/27
Mean Anomaly:          359.01990 +/-     0.000
Argument of Peri:       10.53985 +/-     0.000
Long of Asc Node:      197.86444 +/-     0.000
Inclination:            15.49161 +/-     0.000
Eccentricity:         0.76575585 +/-    0.0000
Semi-Major Axis:    162.71503792 +/-    0.0000
Time of Perihelion: 2454820.5004 +/-       0.0
Perihelion:          38.11504525 +/-    0.0000
Aphelion:           287.31503060 +/-    0.0000
Period (y)             2075.6290 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.76306957 +/-    0.0000
Ecliptic Y          -11.24736685 +/-    0.0000
Ecliptic Z           -0.15870115 +/-    0.0000
Ecliptic XDOT         0.00133517 +/-    0.0000
Ecliptic YDOT        -0.00329075 +/-    0.0000
Ecliptic ZDOT         0.00098163 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.44550701 +/-    0.0000
Geocenter to KBO     37.49344961 +/-    0.0000
# Hcoef:  7.49

The following table shows the complete astrometric record for 506479. 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 (506479) followed by the observatory code and reference code for the source of the astrometry.

2003 04  26.33459  13 00 30.58   -06 43 05.4   23.1R 506479    568  Cq9883      
2003 04  26.37682  13 00 30.40   -06 43 04.0   22.6R 506479    568  Cq9883      
2003 04  26.41922  13 00 30.21   -06 43 02.7   23.0R 506479    568  Cq9883      
2003 04  27.38616  13 00 26.17   -06 42 31.9   22.7R 506479    568  Cq9883      
2003 05  30.28314  12 58 37.80   -06 28 00.5   24.0R 506479    568  Cq9883      
2003 05  30.33633  12 58 37.67   -06 27 59.6         506479    568  Cq9883      
2003 05  30.38312  12 58 37.56   -06 27 58.5   22.7R 506479    568  Cq9883      
2004 03  20.57450  13 11 23.42   -07 17 50.1         506479    568  Cq9883      
2004 04  15.36368  13 09 28.56   -07 03 36.8         506479    675  Cq9883      
2004 04  16.28554  13 09 24.42   -07 03 06.4         506479    675  Cq9883      
2004 04  16.35769  13 09 24.10   -07 03 03.8         506479    675  Cq9883      
2004 04  16.40518  13 09 23.87   -07 03 02.4         506479    675  Cq9883      
2005 07  08.28477  13 14 23.45   -06 51 03.6   22.5r 506479    568  Cq9883      
2005 08  02.00975  13 15 15.31   -06 54 36.4         506479    309  Cq9883      
2005 08  02.01354  13 15 15.34   -06 54 36.5         506479    309  Cq9883      
2005 08  03.00953  13 15 18.62   -06 54 51.5         506479    309  Cq9883      
2008 05  03.28039  13 41 29.50   -07 49 01.9         506479    695  Cz0402      
2008 05  03.32634  13 41 29.29   -07 49 00.5         506479    695  Cz0402      
2016 06  08.19398  14 45 37.669  -08 54 26.96  23.3R 506479    G37  C~2cR4      
2016 06  08.22903  14 45 37.530  -08 54 26.48        506479    G37  C~2cR4      
2016 06  08.25155  14 45 37.445  -08 54 26.13        506479    G37  C~2cR4      
2017 03  30.161697 14 58 49.39   -09 29 51.8   23.4r 506479    950  C~2PjW      
2017 04  02.130623 14 58 39.01   -09 28 30.8   23.6r 506479    950  C~2PjW      

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     0.09       0.00     0.07
  2   0.0001      0.00     0.10       0.00     0.13
  3   0.0002      0.00    -0.03       0.00     0.07
  4   0.0029      0.00    -0.17       0.00     0.10
  5   0.0929      0.00     0.15       0.00     0.36
  6   0.0931      0.00     0.03       0.00     0.21
  7   0.0932      0.00    -0.02       0.00     0.38
  8   0.9014      0.00    -0.34       0.00    -0.19
  9   0.9720      0.00     0.12       0.00    -0.08
 10   0.9745      0.00     0.05       0.00    -0.34
 11   0.9747      0.00     0.19       0.00    -0.14
 12   0.9749      0.00    -0.01       0.00    -0.32
 13   2.2011      0.00     0.15       0.00    -0.15
 14   2.2688      0.00    -0.43       0.00    -0.20
 15   2.2688      0.00    -0.16       0.00    -0.24
 16   2.2715      0.00     0.16       0.00     0.36
 17   5.0211      0.00     0.04       0.00    -0.09
 18   5.0212      0.00    -0.04       0.00    -0.05
 19  13.1194      0.00     0.12       0.00     0.03
 20  13.1195      0.00    -0.01       0.00    -0.03
 21  13.1196      0.00    -0.04       0.00    -0.03
 22  13.9270      0.00    -0.06       0.00     0.10
 23  13.9351      0.00    -0.03       0.00     0.12

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.

506479    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       155.770   155.768   155.771
ecceobj         0.755     0.755     0.755
incobj         15.538    15.538    15.538
qmin           35.870    35.955    35.941
qmax          297.442   304.788   307.606
amean         158.159   160.660   161.948
amin          151.475   155.285   155.013
amax          167.766   171.347   172.542
emean           0.762     0.765     0.767
emin            0.748     0.752     0.752
emax            0.774     0.779     0.783
imean          14.449    14.456    14.557
imin           13.448    13.734    13.790
imax           15.845    15.821    15.841
excite_mean     0.802     0.805     0.807
fracstop        1.000     1.000     1.000
cjmean          3.066     3.067     3.067

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        77.1      67.1      63.1
kozaiamp         69.7      56.5      55.0