Orbit Fit and Astrometric record for 385199

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: 385199    
# Created Thu Oct 19 01:36:44 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   47 observations of   47
# Arc:  15.85y
# First observation: 1999/07/20
#  Last observation: 2015/05/28
# Chi-squared of fit:    61.03 DOF:   88 RMS:  0.20
# Min/Max residuals:    -0.38    0.52
# Exact a, adot, b, bdot, g, gdot:
  1.533184E-05  2.284763E-02  6.681612E-07 -8.541652E-04  2.350882E-02 -3.150133E-04
# 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
   -0.201232  -43.425390    0.340357   -0.003588   -0.955076  2451380.033203
# Heliocentric elements and errors
Epoch:              2451380.5000  =  1999/07/21
Mean Anomaly:          333.08379 +/-     0.000
Argument of Peri:      215.01610 +/-     0.000
Long of Asc Node:      130.88426 +/-     0.000
Inclination:             2.14842 +/-     0.000
Eccentricity:         0.05168082 +/-    0.0000
Semi-Major Axis:     45.57153242 +/-    0.0000
Time of Perihelion: 2459781.8737 +/-       0.0
Perihelion:          43.21635831 +/-    0.0000
Aphelion:            47.92670652 +/-    0.0000
Period (y)              307.6441 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.36133646 +/-    0.0000
Ecliptic Y          -30.14209519 +/-    0.0000
Ecliptic Z           -0.14935394 +/-    0.0000
Ecliptic XDOT         0.00179875 +/-    0.0000
Ecliptic YDOT         0.00196646 +/-    0.0000
Ecliptic ZDOT        -0.00009930 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.49831064 +/-    0.0000
Geocenter to KBO     42.53727024 +/-    0.0000
# Hcoef:  6.35

The following table shows the complete astrometric record for 385199. 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 (385199) followed by the observatory code and reference code for the source of the astrometry.

1999 07  20.53246  21 16 22.12   -16 03 38.7   22.9R 385199    568  Ca6755      
1999 07  20.56054  21 16 21.99   -16 03 39.3         385199    568  Ca6755      
1999 07  20.58760  21 16 21.88   -16 03 39.7         385199    568  Ca6755      
1999 08  06.23268  21 15 07.64   -16 09 25.1         385199    807  Ca6755      
1999 08  06.23836  21 15 07.61   -16 09 25.4         385199    807  Ca6755      
1999 08  07.14731  21 15 03.44   -16 09 44.6         385199    807  Ca6755      
1999 08  07.15300  21 15 03.41   -16 09 44.7         385199    807  Ca6755      
1999 08  07.15868  21 15 03.39   -16 09 44.6         385199    807  Ca6755      
1999 08  07.33004  21 15 02.61   -16 09 48.3         385199    807  Ca6755      
1999 08  07.33572  21 15 02.53   -16 09 48.4         385199    807  Ca6755      
1999 08  07.34140  21 15 02.51   -16 09 48.7         385199    807  Ca6755      
2000 08  05.49787  21 20 23.50   -15 48 26.6         385199    568  Cb9102      
2000 08  05.53971  21 20 23.31   -15 48 27.3   22.1R 385199    568  Cb9102      
2000 08  06.44478  21 20 19.16   -15 48 46.4   22.7R 385199    568  Cb9102      
2000 08  06.48713  21 20 18.96   -15 48 47.4         385199    568  Cb9102      
2000 08  06.52918  21 20 18.76   -15 48 48.5         385199    568  Cb9102      
2000 09  23.27096  21 17 03.48   -16 04 02.8   23.1R 385199    568  Cb9102      
2000 09  23.31927  21 17 03.32   -16 04 03.4   23.0R 385199    568  Cb9102      
2000 09  23.36754  21 17 03.15   -16 04 04.1         385199    568  Cb9102      
2001 07  23.38921  21 26 37.283  -15 22 11.16        385199    568  Cl5164      
2001 07  23.45797  21 26 36.956  -15 22 12.82        385199    568  Cl5164      
2001 07  25.52128  21 26 28.06   -15 22 56.4   23.5R 385199    568  Cd2765      
2001 07  25.55535  21 26 27.91   -15 22 57.2   22.9R 385199    568  Cd2765      
2001 07  25.59235  21 26 27.80   -15 22 57.4   23.5R 385199    568  Cd2765      
2001 07  26.54551  21 26 23.61   -15 23 18.1         385199    568  Cd2765      
2002 07  06.37425  21 32 56.84   -14 54 36.4   23.2R 385199    695  Cf8736      
2002 07  06.41674  21 32 56.69   -14 54 37.1   23.5R 385199    695  Cf8736      
2002 07  06.45235  21 32 56.57   -14 54 37.8   23.5R 385199    695  Cf8736      
2003 08  24.17568  21 34 43.13   -14 49 31.4   22.0R 385199    807  Ci3189      
2003 08  25.10841  21 34 38.95   -14 49 52.1         385199    807  Ci3189      
2003 08  25.18963  21 34 38.60   -14 49 54.0         385199    807  Ci3189      
2013 08  07.180389 22 27 24.71   -10 36 28.9   21.6r 385199    W84  C~26aX      
2013 08  07.192167 22 27 24.67   -10 36 29.1   21.8r 385199    W84  C~26aX      
2013 08  07.205531 22 27 24.60   -10 36 29.4   21.6r 385199    W84  C~26aX      
2013 08  07.219214 22 27 24.54   -10 36 29.7   21.5r 385199    W84  C~26aX      
2013 08  07.227314 22 27 24.53   -10 36 29.9   21.4r 385199    W84  C~26aX      
2013 08  07.245009 22 27 24.44   -10 36 30.4   21.4r 385199    W84  C~26aX      
2013 08  07.247667 22 27 24.42   -10 36 30.5   21.3r 385199    W84  C~26aX      
2013 08  07.281708 22 27 24.29   -10 36 31.5   21.7r 385199    W84  C~26aX      
2013 08  07.295231 22 27 24.26   -10 36 31.8   21.7r 385199    W84  C~26aX      
2013 10  06.25495  22 23 17.70   -11 00 27.3   22.7R 385199    695  C~0zdB      
2013 10  07.17459  22 23 14.77   -11 00 43.6         385199    695  C~0zdB      
2015 05  27.35110  22 39 36.17   -09 28 40.3   24.1V 385199    W84  C~1Ua0      
2015 05  27.37257  22 39 36.20   -09 28 40.2         385199    W84  C~1Ua0      
2015 05  27.41554  22 39 36.22   -09 28 40.1         385199    W84  C~1Ua0      
2015 05  27.44046  22 39 36.24   -09 28 39.9         385199    W84  C~1Ua0      
2015 05  28.34896  22 39 37.23   -09 28 35.9         385199    W84  C~1Ua0      

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     0.04       0.00     0.17
  2   0.0001      0.00     0.02       0.00    -0.27
  3   0.0002      0.00     0.13       0.00    -0.13
  4   0.0457      0.00     0.31       0.00     0.13
  5   0.0457      0.00     0.26       0.00    -0.05
  6   0.0482      0.00     0.10       0.00     0.04
  7   0.0482      0.00     0.05       0.00     0.06
  8   0.0483      0.00     0.15       0.00     0.28
  9   0.0487      0.00     0.42       0.00     0.21
 10   0.0487      0.00    -0.38       0.00     0.22
 11   0.0488      0.00    -0.29       0.00     0.04
 12   1.0458      0.00     0.23       0.00    -0.28
 13   1.0459      0.00     0.30       0.00    -0.08
 14   1.0484      0.00    -0.10       0.00     0.41
 15   1.0485      0.00    -0.15       0.00     0.32
 16   1.0486      0.00    -0.22       0.00     0.12
 17   1.1793      0.00     0.17       0.00    -0.02
 18   1.1794      0.00     0.03       0.00     0.06
 19   1.1796      0.00    -0.26       0.00     0.04
 20   2.0092      0.00     0.39       0.00     0.14
 21   2.0094      0.00    -0.03       0.00    -0.08
 22   2.0150      0.00    -0.28       0.00    -0.21
 23   2.0151      0.00    -0.27       0.00    -0.29
 24   2.0152      0.00     0.52       0.00     0.29
 25   2.0178      0.00    -0.27       0.00    -0.16
 26   2.9619      0.00     0.10       0.00     0.14
 27   2.9620      0.00     0.10       0.00     0.18
 28   2.9621      0.00     0.18       0.00     0.11
 29   4.0948      0.00     0.17       0.00    -0.21
 30   4.0974      0.00    -0.17       0.00    -0.13
 31   4.0976      0.00     0.10       0.00    -0.22
 32  14.0497      0.00     0.09       0.00    -0.14
 33  14.0497      0.00     0.22       0.00    -0.05
 34  14.0498      0.00     0.01       0.00    -0.02
 35  14.0498      0.00    -0.04       0.00     0.01
 36  14.0498      0.00     0.31       0.00     0.01
 37  14.0499      0.00     0.07       0.00    -0.05
 38  14.0499      0.00    -0.07       0.00    -0.09
 39  14.0500      0.00     0.10       0.00    -0.25
 40  14.0500      0.00     0.50       0.00    -0.22
 41  14.2142      0.00    -0.03       0.00     0.23
 42  14.2167      0.00    -0.04       0.00     0.38
 43  15.8517      0.00    -0.03       0.00     0.12
 44  15.8517      0.00     0.08       0.00     0.12
 45  15.8518      0.00    -0.28       0.00     0.02
 46  15.8519      0.00    -0.36       0.00     0.11
 47  15.8544      0.00     0.07       0.00     0.11

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.

385199    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.493    45.493    45.493
ecceobj         0.050     0.050     0.050
incobj          2.149     2.149     2.149
qmin           42.530    42.520    42.541
qmax           48.498    48.509    48.493
amean          45.414    45.413    45.414
amin           45.055    45.053    45.054
amax           45.780    45.782    45.784
emean           0.048     0.048     0.048
emin            0.035     0.035     0.035
emax            0.060     0.060     0.059
imean           1.387     1.387     1.387
imin            0.890     0.890     0.890
imax            1.801     1.800     1.801
excite_mean     0.054     0.054     0.054
fracstop        1.000     1.000     1.000
cjmean          3.115     3.115     3.115

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       178.4     178.4     178.4
kozaiamp        180.0     179.9     180.0