Orbit Fit and Astrometric record for 469362

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: 469362    
# Created Fri Dec 15 02:36:46 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   35 observations of   35
# Arc:  14.05y
# First observation: 2001/05/23
#  Last observation: 2015/06/12
# Chi-squared of fit:    57.13 DOF:   64 RMS:  0.23
# Min/Max residuals:    -0.39    0.72
# Exact a, adot, b, bdot, g, gdot:
  1.767154E-05  3.710050E-02  5.915280E-06  1.167901E-02  3.254722E-02 -8.630976E-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
   -1.564135 -142.573947   -0.422331   -0.025424   -0.926878  2452052.520963
# Heliocentric elements and errors
Epoch:              2452052.5000  =  2001/05/23
Mean Anomaly:          325.95874 +/-     0.000
Argument of Peri:       53.27282 +/-     0.000
Long of Asc Node:      222.99214 +/-     0.000
Inclination:            17.56038 +/-     0.000
Eccentricity:         0.27924753 +/-    0.0000
Semi-Major Axis:     39.36012254 +/-    0.0000
Time of Perihelion: 2460581.2659 +/-       0.0
Perihelion:          28.36890557 +/-    0.0000
Aphelion:            50.35133950 +/-    0.0000
Period (y)              246.9408 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.86638284 +/-    0.0000
Ecliptic Y          -19.55948650 +/-    0.0000
Ecliptic Z           -0.83848793 +/-    0.0000
Ecliptic XDOT         0.00244332 +/-    0.0000
Ecliptic YDOT        -0.00205134 +/-    0.0000
Ecliptic ZDOT         0.00100208 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.64839900 +/-    0.0000
Geocenter to KBO     30.72475486 +/-    0.0000
# Hcoef:  7.54

The following table shows the complete astrometric record for 469362. 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 (469362) followed by the observatory code and reference code for the source of the astrometry.

2001 05  23.02022  14 18 10.93   -15 28 04.2   21.9R 469362    807  Cd1817      
2001 05  23.11213  14 18 10.45   -15 28 01.0         469362    807  Cd1817      
2001 06  10.00023  14 16 47.09   -15 18 25.5   22.0R 469362    304  Cd1817      
2001 06  10.07382  14 16 46.79   -15 18 23.3         469362    304  Cd1817      
2001 08  19.98068  14 16 40.76   -15 06 37.0   21.1R 469362    807  Cd7687      
2001 08  20.03859  14 16 40.99   -15 06 37.7         469362    807  Cd7687      
2001 08  20.98812  14 16 44.91   -15 06 48.3         469362    807  Cd7687      
2002 02  05.64577  14 34 41.55   -16 16 18.3   21.2R 469362    568  Cf2336      
2002 02  06.62024  14 34 42.32   -16 16 17.4         469362    568  Cf2336      
2002 02  22.63036  14 34 37.36   -16 14 37.9   21.9R 469362    568  Ce9336      
2002 02  23.62863  14 34 35.97   -16 14 26.4   22.0R 469362    568  Ce9336      
2003 04  01.37348  14 42 01.33   -16 02 21.4   23.8R 469362    688  Ch8069      
2003 04  01.46406  14 42 00.87   -16 02 19.3         469362    688  Ch8069      
2007 06  16.01079  15 14 14.91   -15 12 49.0         469362    304  Cv1520      
2007 06  16.08451  15 14 14.54   -15 12 47.4         469362    304  Cv1520      
2014 06  24.37877  16 26 54.484  -13 44 58.27  22.0w 469362    F51  C~1vV5      
2014 06  24.39160  16 26 54.417  -13 44 58.02  22.0w 469362    F51  C~1vV5      
2014 06  24.40443  16 26 54.334  -13 44 57.80  22.1w 469362    F51  C~1vV5      
2014 06  24.41722  16 26 54.257  -13 44 57.69  22.2w 469362    F51  C~1vV5      
2014 07  02.32699  16 26 09.694  -13 43 21.52  22.3w 469362    F51  C~1vV5      
2014 07  02.33961  16 26 09.634  -13 43 21.44  22.3w 469362    F51  C~1vV5      
2014 07  02.36482  16 26 09.475  -13 43 21.14  22.2w 469362    F51  C~1vV5      
2014 07  04.33072  16 25 59.136  -13 43 01.24  22.0i 469362    F51  C~1vV5      
2014 07  04.34369  16 25 59.070  -13 43 01.17  21.9i 469362    F51  C~1vV5      
2014 07  04.36956  16 25 58.926  -13 43 01.02  21.6i 469362    F51  C~1vV5      
2014 07  28.31223  16 24 22.645  -13 41 13.37  22.3w 469362    F51  C~1vV5      
2014 07  28.33659  16 24 22.601  -13 41 13.19  22.3w 469362    F51  C~1vV5      
2014 07  28.34878  16 24 22.573  -13 41 13.35  22.6w 469362    F51  C~1vV5      
2015 05  22.34337  16 41 24.94   -13 35 15.7   22.1R 469362    695  C~1hTQ      
2015 05  22.36745  16 41 24.77   -13 35 15.3         469362    695  C~1hTQ      
2015 05  22.41959  16 41 24.43   -13 35 13.7         469362    695  C~1hTQ      
2015 06  12.19941  16 39 06.16   -13 28 05.0   21.7R 469362    695  C~1hTQ      
2015 06  12.24696  16 39 05.84   -13 28 04.3         469362    695  C~1hTQ      
2015 06  12.30002  16 39 05.49   -13 28 03.3         469362    695  C~1hTQ      
2015 06  12.33478  16 39 05.26   -13 28 02.7         469362    695  C~1hTQ      

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    -0.28       0.00     0.72
  2   0.0003      0.00     0.32       0.00    -0.08
  3   0.0492      0.00     0.07       0.00     0.28
  4   0.0494      0.00     0.06       0.00     0.35
  5   0.2436      0.00    -0.16       0.00    -0.15
  6   0.2437      0.00    -0.16       0.00    -0.22
  7   0.2463      0.00     0.13       0.00     0.05
  8   0.7081      0.00    -0.34       0.00    -0.17
  9   0.7107      0.00    -0.39       0.00    -0.18
 10   0.7546      0.00    -0.23       0.00    -0.33
 11   0.7573      0.00    -0.31       0.00    -0.25
 12   1.8572      0.00     0.68       0.00     0.57
 13   1.8575      0.00     0.63       0.00     0.01
 14   6.0643      0.00    -0.02       0.00     0.14
 15   6.0645      0.00     0.04       0.00    -0.01
 16  13.0879      0.00     0.02       0.00    -0.03
 17  13.0879      0.00     0.18       0.00     0.04
 18  13.0880      0.00     0.09       0.00     0.08
 19  13.0880      0.00     0.09       0.00     0.01
 20  13.1097      0.00     0.08       0.00    -0.04
 21  13.1097      0.00     0.22       0.00    -0.09
 22  13.1098      0.00    -0.10       0.00    -0.06
 23  13.1152      0.00    -0.05       0.00    -0.01
 24  13.1152      0.00    -0.01       0.00    -0.07
 25  13.1153      0.00    -0.11       0.00    -0.17
 26  13.1808      0.00    -0.31       0.00    -0.16
 27  13.1809      0.00     0.06       0.00     0.03
 28  13.1809      0.00     0.15       0.00    -0.12
 29  13.9968      0.00     0.11       0.00     0.02
 30  13.9968      0.00    -0.04       0.00    -0.15
 31  13.9970      0.00     0.06       0.00     0.21
 32  14.0539      0.00     0.18       0.00     0.09
 33  14.0540      0.00     0.15       0.00    -0.02
 34  14.0542      0.00     0.23       0.00     0.06
 35  14.0542      0.00     0.27       0.00     0.06

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.

469362    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.321    39.321    39.321
ecceobj         0.280     0.280     0.280
incobj         17.568    17.568    17.568
qmin           27.264    27.257    27.261
qmax           52.288    52.402    52.207
amean          39.455    39.455    39.455
amin           38.972    38.989    38.986
amax           40.022    40.019    40.007
emean           0.249     0.250     0.248
emin            0.183     0.183     0.185
emax            0.308     0.310     0.308
imean          19.862    19.808    19.888
imin           17.532    17.469    17.535
imax           22.295    22.317    22.291
excite_mean     0.423     0.423     0.423
fracstop        1.000     1.000     1.000
cjmean          2.846     2.846     2.846

libcent 0       180.7     179.9     180.6
libamp  0        99.6      98.3     100.6
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        93.9      93.1      94.4
kozaiamp         64.0      63.2      64.9