Orbit Fit and Astrometric record for 04VM131

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: 04VM131   
# Created Mon Dec 11 02:37:27 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   34 observations of   34
# Arc:  16.43y
# First observation: 1999/10/08
#  Last observation: 2016/03/13
# Chi-squared of fit:    87.87 DOF:   62 RMS:  0.28
# Min/Max residuals:    -0.54    0.57
# Exact a, adot, b, bdot, g, gdot:
  2.687238E-05  8.556073E-02 -4.949037E-06 -1.968702E-02  4.975369E-02  1.210165E-02
# Covariance matrix:
  1.1970E-13 -1.1547E-14 -2.7397E-15 -6.0588E-16  8.3509E-15  3.8371E-15
 -1.1547E-14  2.7782E-15 -5.3476E-16 -1.2008E-16  1.4788E-15  7.6054E-16
 -2.7397E-15 -5.3476E-16  1.0525E-13 -1.4321E-14 -1.1415E-15 -7.5585E-16
 -6.0588E-16 -1.2008E-16 -1.4321E-14  2.2465E-15 -1.1192E-16 -1.8637E-16
  8.3509E-15  1.4788E-15 -1.1415E-15 -1.1192E-16  1.5201E-14  7.0096E-16
  3.8371E-15  7.6054E-16 -7.5585E-16 -1.8637E-16  7.0096E-16  1.1814E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.913320   23.031866    0.143861    0.100842   -0.975731  2451459.920778
# Heliocentric elements and errors
Epoch:              2451460.5000  =  1999/10/09
Mean Anomaly:            2.23637 +/-     0.001
Argument of Peri:      137.91401 +/-     0.000
Long of Asc Node:      225.94194 +/-     0.000
Inclination:            14.00679 +/-     0.000
Eccentricity:         0.70686643 +/-    0.0000
Semi-Major Axis:     70.44204848 +/-    0.0000
Time of Perihelion: 2450119.0072 +/-       0.3
Perihelion:          20.64892895 +/-    0.0001
Aphelion:           120.23516800 +/-    0.0001
Period (y)              591.2296 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.36482172 +/-    0.0000
Ecliptic Y            8.07577853 +/-    0.0000
Ecliptic Z            2.07058137 +/-    0.0000
Ecliptic XDOT        -0.00113425 +/-    0.0000
Ecliptic YDOT         0.00464389 +/-    0.0000
Ecliptic ZDOT        -0.00100889 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   21.08313838 +/-    0.0000
Geocenter to KBO     20.09896561 +/-    0.0000
# Hcoef:  8.59

The following table shows the complete astrometric record for 04VM131. 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 (04VM131) followed by the observatory code and reference code for the source of the astrometry.

1999 10  08.420035 01 16 11.73   +14 26 14.6   21.1V 04VM131   645  C~1sct      
1999 10  08.420856 01 16 11.72   +14 26 14.6         04VM131   645  C~1sct      
1999 10  08.423345 01 16 11.69   +14 26 14.4         04VM131   645  C~1sct      
1999 10  13.340393 01 15 32.90   +14 21 33.4   21.6V 04VM131   645  C~2JxC      
1999 10  13.34045  01 15 32.89   +14 21 33.6   20.7r 04VM131   705  C~0nKG      
1999 10  13.341222 01 15 32.90   +14 21 33.3   21.2V 04VM131   645  C~2JxC      
1999 10  13.34128  01 15 32.88   +14 21 33.5         04VM131   705  C~0nKG      
1999 10  13.343710 01 15 32.88   +14 21 33.2   22.2V 04VM131   645  C~2JxC      
1999 10  13.34377  01 15 32.86   +14 21 33.4         04VM131   705  C~0nKG      
2002 12  05.09041  02 08 37.95   +15 29 17.9   21.7R 04VM131   695  C~0hBM      
2002 12  05.20111  02 08 37.34   +15 29 12.8         04VM131   695  C~0hBM      
2004 11  09.39893  02 48 08.23   +16 31 07.3   22.5g 04VM131   568  C~0hBM      
2004 11  09.42533  02 48 08.01   +16 31 06.0   22.5g 04VM131   568  C~0hBM      
2004 11  09.45131  02 48 07.81   +16 31 04.9   22.5g 04VM131   568  C~0hBM      
2004 11  10.31680  02 48 00.97   +16 30 25.1   22.0g 04VM131   568  C~0hBM      
2005 01  05.24316  02 42 38.61   +15 56 08.5   21.9i 04VM131   568  C~0hBM      
2005 01  05.31687  02 42 38.44   +15 56 06.9   21.9i 04VM131   568  C~0hBM      
2005 01  05.36913  02 42 38.32   +15 56 05.8   21.9i 04VM131   568  C~0hBM      
2006 10  20.291088 03 24 24.22   +17 00 36.0         04VM131   645  C~1sct      
2006 10  20.291910 03 24 24.21   +17 00 36.0         04VM131   645  C~1sct      
2006 10  20.294398 03 24 24.19   +17 00 35.9         04VM131   645  C~1sct      
2006 10  21.372481 03 24 16.89   +16 59 56.7   21.9V 04VM131   645  C~1sct      
2006 10  21.373311 03 24 16.88   +16 59 56.7   21.8V 04VM131   645  C~1sct      
2006 10  21.375798 03 24 16.86   +16 59 56.6   22.6V 04VM131   645  C~1sct      
2006 10  26.43959  03 23 41.21   +16 56 48.4         04VM131   568  C~0hBM      
2006 10  26.50795  03 23 40.69   +16 56 46.3         04VM131   568  C~0hBM      
2007 01  15.29315  03 15 17.34   +16 14 23.4   22.5r 04VM131   568  C~0hBM      
2007 01  15.33923  03 15 17.24   +16 14 22.8   22.6r 04VM131   568  C~0hBM      
2007 01  15.38038  03 15 17.15   +16 14 22.4   22.4r 04VM131   568  C~0hBM      
2007 01  16.28614  03 15 15.40   +16 14 11.6         04VM131   568  C~0hBM      
2007 01  16.32601  03 15 15.32   +16 14 11.1         04VM131   568  C~0hBM      
2007 01  16.36589  03 15 15.25   +16 14 10.6         04VM131   568  C~0hBM      
2016 03  13.12517  05 08 43.45   +15 03 05.5   23.0R 04VM131   G37  C~1pPj      
2016 03  13.22429  05 08 43.64   +15 03 06.9         04VM131   G37  C~1pPj      

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     0.57
  2   0.0000      0.00     0.21       0.00    -0.14
  3   0.0000      0.00     0.05       0.00    -0.20
  4   0.0135      0.00     0.14       0.00    -0.08
  5   0.0135      0.00    -0.01       0.00     0.13
  6   0.0135      0.00     0.24       0.00    -0.13
  7   0.0135      0.00    -0.06       0.00     0.08
  8   0.0135      0.00     0.24       0.00    -0.08
  9   0.0135      0.00    -0.06       0.00     0.12
 10   3.1586      0.00    -0.19       0.00     0.38
 11   3.1589      0.00     0.01       0.00     0.16
 12   5.0896      0.00     0.34       0.00     0.45
 13   5.0897      0.00     0.24       0.00     0.36
 14   5.0898      0.00     0.39       0.00     0.46
 15   5.0921      0.00     0.31       0.00     0.39
 16   5.2452      0.00    -0.46       0.00     0.41
 17   5.2454      0.00    -0.43       0.00     0.34
 18   5.2456      0.00    -0.43       0.00     0.33
 19   7.0332      0.00    -0.00       0.00    -0.54
 20   7.0332      0.00    -0.07       0.00    -0.51
 21   7.0332      0.00    -0.11       0.00    -0.52
 22   7.0361      0.00     0.52       0.00    -0.40
 23   7.0361      0.00     0.46       0.00    -0.37
 24   7.0362      0.00     0.42       0.00    -0.38
 25   7.0500      0.00     0.01       0.00    -0.24
 26   7.0502      0.00    -0.23       0.00     0.24
 27   7.2714      0.00     0.15       0.00    -0.17
 28   7.2715      0.00     0.14       0.00    -0.17
 29   7.2716      0.00     0.10       0.00    -0.03
 30   7.2741      0.00    -0.03       0.00     0.38
 31   7.2742      0.00    -0.03       0.00     0.37
 32   7.2743      0.00     0.10       0.00     0.36
 33  16.4290      0.00     0.05       0.00    -0.01
 34  16.4293      0.00    -0.17       0.00     0.03

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.

04VM131    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        70.362    70.362    70.361
ecceobj         0.707     0.707     0.707
incobj         14.006    14.006    14.006
qmin           19.995    20.190    20.132
qmax          123.757   123.800   140.864
amean          68.961    67.382    73.574
amin           63.682    62.789    67.981
amax           72.245    72.274    80.898
emean           0.700     0.691     0.719
emin            0.675     0.661     0.692
emax            0.716     0.713     0.745
imean          14.741    15.298    14.023
imin           13.718    14.331    13.242
imax           16.898    18.124    15.359
excite_mean     0.745     0.740     0.758
fracstop        0.139     0.139     0.144
cjmean          2.524     2.530     2.516

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       202.1     202.3     198.7
kozaiamp         56.9      58.8      57.9