Orbit Fit and Astrometric record for 470593

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: 470593    
# Created Thu Oct 19 01:36:51 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   68 observations of   68
# Arc:  15.20y
# First observation: 2000/05/05
#  Last observation: 2015/07/19
# Chi-squared of fit:    89.00 DOF:  130 RMS:  0.20
# Min/Max residuals:    -0.56    1.06
# Exact a, adot, b, bdot, g, gdot:
  2.171567E-05  4.289154E-02 -8.508752E-07 -6.509541E-03  3.179149E-02 -1.178021E-02
# 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
   11.368346 -159.241514   -0.417740    0.182302   -0.907872  2451669.851225
# Heliocentric elements and errors
Epoch:              2451670.5000  =  2000/05/06
Mean Anomaly:          354.07086 +/-     0.000
Argument of Peri:      164.77305 +/-     0.000
Long of Asc Node:       72.38574 +/-     0.000
Inclination:            14.12560 +/-     0.000
Eccentricity:         0.66022125 +/-    0.0000
Semi-Major Axis:     87.80439185 +/-    0.0000
Time of Perihelion: 2456620.0066 +/-       0.0
Perihelion:          29.83406648 +/-    0.0000
Aphelion:           145.77471723 +/-    0.0000
Period (y)              822.7778 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.54709767 +/-    0.0000
Ecliptic Y          -11.64563424 +/-    0.0000
Ecliptic Z            6.20027894 +/-    0.0000
Ecliptic XDOT         0.00212942 +/-    0.0000
Ecliptic YDOT        -0.00313420 +/-    0.0000
Ecliptic ZDOT        -0.00074944 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.35902467 +/-    0.0000
Geocenter to KBO     31.45517331 +/-    0.0000
# Hcoef:  6.45

The following table shows the complete astrometric record for 470593. 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 (470593) followed by the observatory code and reference code for the source of the astrometry.

2000 05  05.350482 13 33 42.36   +02 26 36.2   21.3V 470593    645  C~1S73      
2000 05  05.351312 13 33 42.36   +02 26 36.3   20.9V 470593    645  C~1S73      
2000 05  05.353800 13 33 42.35   +02 26 36.3   22.2V 470593    645  C~1S73      
2008 06  06.21347  14 45 20.44   -08 16 45.7   20.9R 470593    675  Cz2704      
2008 06  06.26421  14 45 20.19   -08 16 45.3   21.0R 470593    675  Cz2704      
2008 06  07.20266  14 45 15.63   -08 16 38.4   20.8R 470593    675  Cz2704      
2008 06  07.24348  14 45 15.46   -08 16 38.1   21.0R 470593    675  Cz2704      
2008 06  19.24897  14 44 23.79   -08 15 52.8         470593    675  Cz2704      
2008 06  19.30271  14 44 23.53   -08 15 53.2         470593    675  Cz2704      
2008 06  20.21121  14 44 20.15   -08 15 52.6         470593    675  Cz2704      
2008 07  01.27114  14 43 45.35   -08 16 33.8         470593    675  Cz2704      
2008 07  02.18189  14 43 43.08   -08 16 40.9         470593    675  Cz2704      
2008 07  02.25658  14 43 42.88   -08 16 41.7         470593    675  Cz2704      
2008 08  23.04975  14 44 15.77   -08 36 55.8         470593    807  C~03Je      
2009 02  03.46852  15 03 04.48   -10 14 03.4         470593    675  C~03Je      
2009 02  03.56280  15 03 04.67   -10 14 03.5         470593    675  C~03Je      
2009 02  04.46414  15 03 06.58   -10 14 03.6         470593    675  C~03Je      
2009 02  04.56845  15 03 06.80   -10 14 03.8         470593    675  C~03Je      
2009 04  27.33482  14 59 21.76   -09 52 13.7   21.0R 470593    688  C~06gx      
2009 04  27.39876  14 59 21.36   -09 52 12.2         470593    688  C~06gx      
2009 04  30.22967  14 59 04.26   -09 51 09.7         470593    675  C~0Aba      
2009 04  30.28381  14 59 03.89   -09 51 08.7         470593    675  C~0Aba      
2013 04  15.50357  15 42 48.683  -15 23 46.33  21.1w 470593    F51  C~1vVr      
2013 04  15.51782  15 42 48.613  -15 23 46.18  21.1w 470593    F51  C~1vVr      
2013 04  15.53209  15 42 48.537  -15 23 45.93  21.1w 470593    F51  C~1vVr      
2013 04  15.54634  15 42 48.469  -15 23 45.72  21.2w 470593    F51  C~1vVr      
2013 05  08.43605  15 40 36.173  -15 17 46.71  21.1w 470593    F51  C~1vVr      
2013 05  08.45015  15 40 36.083  -15 17 46.51  21.0w 470593    F51  C~1vVr      
2013 05  08.46424  15 40 35.992  -15 17 46.27  21.0w 470593    F51  C~1vVr      
2013 05  08.47837  15 40 35.900  -15 17 46.11  21.0w 470593    F51  C~1vVr      
2013 07  29.26829  15 34 15.252  -15 10 53.19  21.3w 470593    F51  C~1vVr      
2013 07  29.27224  15 34 15.254  -15 10 53.15  21.3w 470593    F51  C~1vVr      
2013 07  29.27620  15 34 15.222  -15 10 53.19  21.3w 470593    F51  C~1vVr      
2013 07  29.28016  15 34 15.234  -15 10 53.28  21.4w 470593    F51  C~1vVr      
2014 03  12.59455  15 55 31.224  -16 46 13.42  21.2w 470593    F51  C~1vVr      
2014 03  12.60649  15 55 31.210  -16 46 13.23  21.2w 470593    F51  C~1vVr      
2014 03  12.61842  15 55 31.211  -16 46 13.25  21.6w 470593    F51  C~1vVr      
2014 03  12.63034  15 55 31.179  -16 46 13.29  21.2w 470593    F51  C~1vVr      
2014 04  30.45891  15 52 25.216  -16 38 11.42  21.0w 470593    F51  C~1vVr      
2014 04  30.47079  15 52 25.145  -16 38 11.38  21.0w 470593    F51  C~1vVr      
2014 04  30.48267  15 52 25.074  -16 38 11.21  20.9w 470593    F51  C~1vVr      
2014 04  30.49455  15 52 24.999  -16 38 11.08  21.1w 470593    F51  C~1vVr      
2014 05  08.47583  15 51 36.364  -16 36 19.20  21.1w 470593    F51  C~1vVr      
2014 05  08.48795  15 51 36.285  -16 36 18.93  21.0w 470593    F51  C~1vVr      
2014 05  08.50007  15 51 36.207  -16 36 18.82  21.1w 470593    F51  C~1vVr      
2014 05  08.51217  15 51 36.130  -16 36 18.64  21.0w 470593    F51  C~1vVr      
2014 05  10.47262  15 51 23.833  -16 35 51.15  20.8i 470593    F51  C~1vVr      
2014 05  10.48473  15 51 23.748  -16 35 51.04  20.6i 470593    F51  C~1vVr      
2014 05  10.49683  15 51 23.671  -16 35 50.73  20.8i 470593    F51  C~1vVr      
2014 05  10.50896  15 51 23.597  -16 35 50.54  20.8i 470593    F51  C~1vVr      
2014 05  20.38567  15 50 20.479  -16 33 35.43  20.9w 470593    F51  C~1vVr      
2014 05  20.39697  15 50 20.405  -16 33 35.31  20.9w 470593    F51  C~1vVr      
2014 05  20.40827  15 50 20.333  -16 33 35.20  20.9w 470593    F51  C~1vVr      
2014 05  20.41956  15 50 20.258  -16 33 35.00  20.9w 470593    F51  C~1vVr      
2014 06  28.21867  15 46 33.09   -16 27 33.6   20.9R 470593    G37  C~16WK      
2014 06  28.27838  15 46 32.80   -16 27 33.3         470593    G37  C~16WK      
2015 05  25.37966  16 00 57.027  -17 49 11.48  20.6i 470593    F51  C@0611      
2015 05  25.39093  16 00 56.955  -17 49 11.43  20.5i 470593    F51  C~1vVr      
2015 05  25.40229  16 00 56.873  -17 49 11.25  20.6i 470593    F51  C@0611      
2015 05  25.41359  16 00 56.798  -17 49 11.04  20.5i 470593    F51  C@0611      
2015 06  08.40567  15 59 27.526  -17 46 43.52  21.3r 470593    F51  C~1vVr      
2015 06  08.41700  15 59 27.470  -17 46 43.31  20.9r 470593    F51  C~1vVr      
2015 06  08.42863  15 59 27.392  -17 46 43.41  20.9r 470593    F51  C~1vVr      
2015 06  08.43981  15 59 27.327  -17 46 43.04  21.2r 470593    F51  C~1vVr      
2015 07  19.27918  15 56 11.786  -17 44 04.75  21.2w 470593    F51  C~1vVr      
2015 07  19.29015  15 56 11.753  -17 44 04.86  21.2w 470593    F51  C~1vVr      
2015 07  19.30112  15 56 11.717  -17 44 04.86  21.2w 470593    F51  C~1vVr      
2015 07  19.31209  15 56 11.687  -17 44 04.86  21.2w 470593    F51  C~1vVr      

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    -0.12       0.00    -0.12
  2   0.0000      0.00    -0.13       0.00    -0.36
  3   0.0000      0.00    -0.09       0.00    -0.40
  4   8.0872      0.00     0.12       0.00     0.55
  5   8.0874      0.00     0.15       0.00     0.55
  6   8.0899      0.00    -0.36       0.00     0.40
  7   8.0901      0.00     0.08       0.00     0.41
  8   8.1229      0.00     0.54       0.00     0.14
  9   8.1231      0.00    -0.24       0.00    -0.28
 10   8.1256      0.00    -0.15       0.00     0.36
 11   8.1558      0.00    -0.12       0.00     0.16
 12   8.1583      0.00     0.15       0.00    -0.14
 13   8.1585      0.00     0.02       0.00    -0.37
 14   8.3003      0.00     1.06       0.00    -0.56
 15   8.7505      0.00     0.19       0.00    -0.00
 16   8.7508      0.00     0.09       0.00     0.01
 17   8.7532      0.00     0.03       0.00     0.58
 18   8.7535      0.00     0.27       0.00     0.44
 19   8.9774      0.00     0.14       0.00     0.12
 20   8.9775      0.00     0.01       0.00     0.20
 21   8.9853      0.00     0.19       0.00     0.22
 22   8.9854      0.00    -0.35       0.00     0.05
 23  12.9450      0.00     0.06       0.00    -0.14
 24  12.9450      0.00     0.12       0.00    -0.20
 25  12.9451      0.00     0.10       0.00    -0.16
 26  12.9451      0.00     0.19       0.00    -0.16
 27  13.0078      0.00     0.14       0.00    -0.08
 28  13.0078      0.00     0.14       0.00    -0.10
 29  13.0078      0.00     0.13       0.00    -0.09
 30  13.0079      0.00     0.10       0.00    -0.15
 31  13.2318      0.00     0.09       0.00    -0.15
 32  13.2318      0.00     0.18       0.00    -0.07
 33  13.2318      0.00    -0.24       0.00    -0.06
 34  13.2318      0.00    -0.00       0.00    -0.11
 35  13.8515      0.00     0.05       0.00    -0.14
 36  13.8515      0.00     0.05       0.00     0.01
 37  13.8515      0.00     0.27       0.00    -0.05
 38  13.8516      0.00    -0.01       0.00    -0.13
 39  13.9852      0.00     0.10       0.00     0.03
 40  13.9853      0.00     0.11       0.00    -0.10
 41  13.9853      0.00     0.12       0.00    -0.09
 42  13.9853      0.00     0.07       0.00    -0.13
 43  14.0072      0.00     0.09       0.00    -0.09
 44  14.0072      0.00     0.06       0.00     0.01
 45  14.0073      0.00     0.05       0.00    -0.05
 46  14.0073      0.00     0.05       0.00    -0.04
 47  14.0127      0.00     0.05       0.00    -0.00
 48  14.0127      0.00    -0.06       0.00    -0.06
 49  14.0127      0.00    -0.05       0.00     0.08
 50  14.0128      0.00     0.01       0.00     0.10
 51  14.0398      0.00     0.03       0.00     0.03
 52  14.0398      0.00     0.03       0.00    -0.00
 53  14.0399      0.00     0.07       0.00    -0.04
 54  14.0399      0.00     0.05       0.00     0.01
 55  14.1461      0.00    -0.06       0.00     0.08
 56  14.1463      0.00    -0.12       0.00     0.15
 57  15.0528      0.00     0.09       0.00    -0.05
 58  15.0528      0.00     0.12       0.00    -0.13
 59  15.0528      0.00     0.02       0.00    -0.08
 60  15.0529      0.00     0.02       0.00     0.00
 61  15.0912      0.00    -0.28       0.00    -0.08
 62  15.0912      0.00    -0.04       0.00     0.02
 63  15.0912      0.00    -0.11       0.00    -0.19
 64  15.0913      0.00    -0.03       0.00     0.07
 65  15.2031      0.00     0.13       0.00     0.07
 66  15.2031      0.00     0.13       0.00    -0.01
 67  15.2032      0.00     0.08       0.00     0.02
 68  15.2032      0.00     0.12       0.00     0.05

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.

470593    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        87.763    87.762    87.764
ecceobj         0.660     0.660     0.660
incobj         14.124    14.124    14.124
qmin           29.493    29.493    29.493
qmax          149.998   149.998   149.997
amean          89.064    89.065    89.064
amin           87.763    87.762    87.764
amax           89.912    89.913    89.911
emean           0.664     0.664     0.664
emin            0.660     0.660     0.660
emax            0.668     0.668     0.668
imean          12.852    12.852    12.853
imin           12.784    12.784    12.784
imax           12.934    12.934    12.934
excite_mean     0.700     0.700     0.700
fracstop        0.001     0.001     0.001
cjmean          2.842     2.842     2.842

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       164.7     164.7     164.7
kozaiamp          0.7       0.7       0.7