Orbit Fit and Astrometric record for 415720

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: 415720    
# Created Mon Oct 23 01:36:46 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   46 observations of   46
# Arc:  14.08y
# First observation: 1999/09/07
#  Last observation: 2013/10/06
# Chi-squared of fit:    63.23 DOF:   86 RMS:  0.21
# Min/Max residuals:    -0.87    0.61
# Exact a, adot, b, bdot, g, gdot:
  1.574062E-05  2.554347E-02  3.544930E-06  3.472399E-03  2.530851E-02  1.157762E-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
   -0.075889   14.464371    0.503687   -0.001366   -0.864958  2451429.032193
# Heliocentric elements and errors
Epoch:              2451428.5000  =  1999/09/07
Mean Anomaly:           22.39541 +/-     0.000
Argument of Peri:      333.35631 +/-     0.000
Long of Asc Node:       14.29719 +/-     0.000
Inclination:             7.71327 +/-     0.000
Eccentricity:         0.07716059 +/-    0.0000
Semi-Major Axis:     43.44587021 +/-    0.0000
Time of Perihelion: 2444921.5458 +/-       0.0
Perihelion:          40.09356137 +/-    0.0000
Aphelion:            46.79817904 +/-    0.0000
Period (y)              286.3723 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.23083386 +/-    0.0000
Ecliptic Y            9.60012409 +/-    0.0000
Ecliptic Z           -0.05218908 +/-    0.0000
Ecliptic XDOT        -0.00057253 +/-    0.0000
Ecliptic YDOT         0.00271541 +/-    0.0000
Ecliptic ZDOT         0.00037554 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.38838694 +/-    0.0000
Geocenter to KBO     39.51240337 +/-    0.0000
# Hcoef:  7.29

The following table shows the complete astrometric record for 415720. 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 (415720) followed by the observatory code and reference code for the source of the astrometry.

1999 09  07.53145  00 53 22.71   +05 37 55.6   23.0R 415720    568  Ca9937      
1999 09  07.57789  00 53 22.51   +05 37 54.6   22.7R 415720    568  Ca9937      
1999 09  07.61159  00 53 22.36   +05 37 53.6   22.1R 415720    568  Ca9937      
1999 09  11.59196  00 53 06.20   +05 36 20.7   23.0R 415720    568  Ca9937      
1999 09  11.60241  00 53 06.15   +05 36 20.4   23.0R 415720    568  Ca9937      
1999 10  08.57269  00 51 03.90   +05 24 30.4   23.0R 415720    568  Ca9937      
1999 10  08.59814  00 51 03.83   +05 24 29.6   23.0R 415720    568  Ca9937      
1999 10  09.54375  00 50 59.33   +05 24 03.5   22.9R 415720    568  Ca9937      
1999 10  09.56363  00 50 59.24   +05 24 03.0   23.0R 415720    568  Ca9937      
1999 11  10.43542  00 48 40.27   +05 10 36.8   23.3R 415720    568  Ca9937      
1999 11  10.47021  00 48 40.13   +05 10 36.3   23.3R 415720    568  Ca9937      
2000 08  28.47852  00 59 04.61   +06 26 03.6   23.0R 415720    568  Cb9109      
2000 08  28.53299  00 59 04.42   +06 26 02.7   23.0R 415720    568  Cb9109      
2000 08  29.55080  00 59 00.96   +06 25 43.6   23.0R 415720    568  Cb9109      
2000 08  29.58698  00 59 00.83   +06 25 43.0   23.1R 415720    568  Cb9109      
2000 12  27.26720  00 52 09.722  +05 46 59.29  23.2R 415720    568  Cl2529      
2000 12  28.27424  00 52 09.792  +05 47 01.42  23.2R 415720    568  Cl2529      
2002 11  07.28224  01 04 13.61   +07 26 09.5   23.1R 415720    568  Cl8251      
2002 11  07.42733  01 04 13.00   +07 26 05.9         415720    568  Cl8251      
2011 08  29.52378  01 55 43.614  +14 13 32.32  23.3r 415720    568  C~1C5p      
2011 08  29.56781  01 55 43.507  +14 13 32.01  23.3r 415720    568  C~1C5p      
2011 08  29.61470  01 55 43.379  +14 13 31.62  23.4r 415720    568  C~1C5p      
2011 09  05.55403  01 55 24.832  +14 12 24.48  23.4r 415720    568  C~1C5p      
2011 10  24.43329  01 51 58.615  +13 56 30.52  23.1r 415720    568  C~1C5p      
2011 10  24.47598  01 51 58.401  +13 56 29.45  23.1r 415720    568  C~1C5p      
2011 10  24.51878  01 51 58.189  +13 56 28.50  23.1r 415720    568  C~1C5p      
2011 10  28.30888  01 51 39.728  +13 54 54.08  23.1r 415720    568  C~1C5p      
2011 10  28.48864  01 51 38.828  +13 54 49.72  23.1r 415720    568  C~1C5p      
2011 10  30.53322  01 51 28.893  +13 53 58.52  23.1r 415720    568  C~1C5p      
2011 10  30.55522  01 51 28.787  +13 53 57.94        415720    568  C~1C5p      
2011 10  31.51590  01 51 24.148  +13 53 33.99  23.2r 415720    568  C~1C5p      
2011 11  24.26219  01 49 37.480  +13 44 04.58  23.3r 415720    568  C~1C5p      
2011 11  24.26645  01 49 37.471  +13 44 04.57  23.3r 415720    568  C~1C5p      
2012 01  25.26215  01 48 01.743  +13 33 57.64  23.3r 415720    568  C~1C5p      
2012 01  26.24693  01 48 03.114  +13 34 03.53  23.4r 415720    568  C~1C5p      
2012 02  21.22817  01 49 11.574  +13 39 41.01        415720    568  C~1C5p      
2012 08  23.55059  02 01 08.735  +14 53 47.03  23.5r 415720    568  C~1C5p      
2012 08  23.55926  02 01 08.703  +14 53 47.00  23.5r 415720    568  C~1C5p      
2012 08  24.58191  02 01 06.761  +14 53 42.17  23.3r 415720    568  C~1C5p      
2012 10  20.50922  01 57 31.060  +14 38 17.74  23.1r 415720    568  C~1C5p      
2013 01  14.36729  01 53 02.084  +14 13 27.39  23.6r 415720    568  C~1C5p      
2013 02  02.24616  01 53 23.654  +14 14 45.09  23.5r 415720    568  C~1C5p      
2013 02  03.25183  01 53 25.761  +14 14 54.54  23.4r 415720    568  C~1C5p      
2013 10  05.42935  02 04 01.73   +15 23 51.4   23.0R 415720    695  C~0zdB      
2013 10  05.49333  02 04 01.45   +15 23 50.0         415720    695  C~0zdB      
2013 10  06.44311  02 03 57.15   +15 23 30.2         415720    695  C~0zdB      

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    -0.19       0.00    -0.87
  2   0.0001      0.00     0.02       0.00    -0.17
  3   0.0002      0.00    -0.19       0.00    -0.40
  4   0.0111      0.00    -0.13       0.00    -0.25
  5   0.0111      0.00    -0.22       0.00    -0.30
  6   0.0850      0.00    -0.20       0.00     0.17
  7   0.0851      0.00     0.57       0.00     0.07
  8   0.0876      0.00    -0.07       0.00    -0.02
  9   0.0877      0.00     0.01       0.00     0.03
 10   0.1750      0.00     0.40       0.00     0.17
 11   0.1751      0.00     0.28       0.00     0.42
 12   0.9745      0.00     0.03       0.00    -0.23
 13   0.9747      0.00     0.01       0.00    -0.11
 14   0.9775      0.00     0.21       0.00     0.07
 15   0.9776      0.00     0.17       0.00     0.16
 16   1.3052      0.00    -0.26       0.00     0.61
 17   1.3080      0.00    -0.43       0.00     0.44
 18   3.1670      0.00     0.09       0.00    -0.01
 19   3.1674      0.00     0.07       0.00    -0.18
 20  11.9753      0.00     0.13       0.00     0.06
 21  11.9755      0.00     0.17       0.00     0.10
 22  11.9756      0.00    -0.00       0.00     0.09
 23  11.9946      0.00     0.19       0.00     0.02
 24  12.1284      0.00     0.03       0.00     0.01
 25  12.1285      0.00     0.00       0.00    -0.00
 26  12.1286      0.00     0.01       0.00     0.11
 27  12.1390      0.00     0.19       0.00    -0.02
 28  12.1395      0.00     0.04       0.00     0.10
 29  12.1451      0.00    -0.03       0.00    -0.03
 30  12.1452      0.00     0.00       0.00    -0.05
 31  12.1478      0.00     0.08       0.00    -0.00
 32  12.2128      0.00    -0.12       0.00    -0.04
 33  12.2128      0.00     0.01       0.00     0.05
 34  12.3826      0.00     0.09       0.00    -0.12
 35  12.3853      0.00     0.08       0.00    -0.05
 36  12.4564      0.00    -0.42       0.00    -0.06
 37  12.9610      0.00     0.21       0.00     0.02
 38  12.9611      0.00    -0.02       0.00     0.03
 39  12.9639      0.00     0.02       0.00     0.06
 40  13.1197      0.00     0.05       0.00     0.04
 41  13.3548      0.00     0.01       0.00     0.15
 42  13.4065      0.00     0.01       0.00     0.01
 43  13.4092      0.00    -0.04       0.00    -0.01
 44  14.0777      0.00    -0.27       0.00     0.07
 45  14.0779      0.00    -0.06       0.00    -0.01
 46  14.0805      0.00     0.35       0.00    -0.35

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.

415720    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.424    43.424    43.424
ecceobj         0.077     0.077     0.077
incobj          7.715     7.715     7.715
qmin           39.205    39.204    39.206
qmax           47.170    47.174    47.171
amean          43.099    43.098    43.098
amin           42.753    42.760    42.761
amax           43.453    43.456    43.447
emean           0.067     0.067     0.067
emin            0.048     0.048     0.048
emax            0.086     0.086     0.086
imean           7.108     7.108     7.108
imin            6.261     6.259     6.260
imax            8.064     8.064     8.064
excite_mean     0.141     0.141     0.141
fracstop        1.000     1.000     1.000
cjmean          3.067     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       176.7     176.6     176.7
kozaiamp        180.0     179.9     179.9