Orbit Fit and Astrometric record for 04VB131

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: 04VB131   
# Created Sat Dec 16 02:37:24 2017
# Orbit generated from Bernstein formalism
# Fitting   21 observations of   22
# Arc:  10.03y
# First observation: 2004/11/09
#  Last observation: 2014/11/19
Preliminary a, adot, b, bdot, g, gdot:
  -0.000024   0.019705  -0.000002   0.000588   0.021564   0.000000
# Chi-squared of fit:    11.34 DOF:   36 RMS:  0.13
# Min/Max residuals:    -0.42    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.414067E-05  1.964473E-02  1.763877E-07  5.859586E-04  2.194523E-02  8.802057E-04
# Covariance matrix:
  2.8597E-13 -2.8391E-13  4.7896E-15 -7.8840E-15  1.9328E-13 -1.3110E-12
 -2.8391E-13  4.7988E-13 -8.4668E-15  1.3968E-14 -3.7511E-13  2.3231E-12
  4.7896E-15 -8.4668E-15  1.3409E-13 -1.5614E-14  6.2098E-15 -4.1328E-14
 -7.8840E-15  1.3968E-14 -1.5614E-14  4.0839E-15 -1.0786E-14  6.8152E-14
  1.9328E-13 -3.7511E-13  6.2098E-15 -1.0786E-14  8.5410E-13 -1.7997E-12
 -1.3110E-12  2.3231E-12 -4.1328E-14  6.8152E-14 -1.7997E-12  1.1334E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.366599   38.347015   -0.150040   -0.006176   -0.981415  2453318.878503
# Heliocentric elements and errors
Epoch:              2453310.5000  =  2004/11/01
Mean Anomaly:          138.21271 +/-     0.190
Argument of Peri:      204.74610 +/-     0.175
Long of Asc Node:       50.35663 +/-     0.001
Inclination:             1.75150 +/-     0.000
Eccentricity:         0.07268677 +/-    0.0001
Semi-Major Axis:     44.06235636 +/-    0.0091
Time of Perihelion: 2412295.2393 +/-      55.0
Perihelion:          40.85960605 +/-    0.0091
Aphelion:            47.26510668 +/-    0.0104
Period (y)              292.4892 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.40873764 +/-    0.0015
Ecliptic Y           28.99860509 +/-    0.0012
Ecliptic Z           -0.29155534 +/-    0.0000
Ecliptic XDOT        -0.00143524 +/-    0.0000
Ecliptic YDOT         0.00198335 +/-    0.0000
Ecliptic ZDOT         0.00007249 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.54675368 +/-    0.0014
Geocenter to KBO     45.56799760 +/-    0.0019
# Hcoef:  6.79

The following table shows the complete astrometric record for 04VB131. 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 (04VB131) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.37776  02 24 22.56   +13 56 25.9   23.3g 04VB131   568  C~0VDw      
2004 11  09.40420  02 24 22.43   +13 56 25.3   23.3g 04VB131   568  C~0VDw      
2004 11  09.43023  02 24 22.32   +13 56 24.9   23.3g 04VB131   568  C~0VDw      
2004 11  10.29255  02 24 18.62   +13 56 06.8   23.3g 04VB131   568  C~0VDw      
2005 01  05.26333  02 21 24.64   +13 42 19.0   23.1i 04VB131   568  C~0VDw      
2005 01  05.33301  02 21 24.55   +13 42 18.3   23.1i 04VB131   568  C~0VDw      
2005 10  25.49229  02 29 49.54   +14 25 06.5   23.5r 04VB131   568  C~0VDw      
2005 10  25.53041  02 29 49.34   +14 25 05.7   23.3r 04VB131   568  C~0VDw      
2005 10  25.56395  02 29 49.20   +14 25 05.0   23.1r 04VB131   568  C~0VDw      
2005 10  26.53384  02 29 44.98   +14 24 45.1   22.9r 04VB131   568  C~0VDw      
2006 10  21.97371  02 34 26.88   +14 49 21.2         04VB131   950  C~0VDw      
2006 10  22.05693  02 34 26.51   +14 49 19.4         04VB131   950  C~0VDw      
2006 10  22.13437  02 34 26.18   +14 49 17.9         04VB131   950  C~0VDw      
2013 10  05.44179  03 06 15.60   +17 24 25.4   23.0R 04VB131   695  C~0zdg      
2013 10  05.50547  03 06 15.38   +17 24 24.6         04VB131   695  C~0zdg      
2013 10  06.46417  03 06 12.03   +17 24 11.3         04VB131   695  C~0zdg      
2014 11  17.18609  03 07 42.79   +17 32 39.2   22.7R 04VB131   G37  C~1EFK      
2014 11  17.27424  03 07 42.41   +17 32 37.8         04VB131   G37  C~1EFK      
2014 11  18.17428  03 07 38.37   +17 32 21.7         04VB131   G37  C~1EFK      
2014 11  18.26205  03 07 37.97   +17 32 20.1         04VB131   G37  C~1EFK      
2014 11  19.18032  03 07 33.92   +17 32 06.0         04VB131   G37  C~1EFK      
2014 11  19.27513  03 07 33.42   +17 32 02.2         04VB131   G37  C~1EFK      

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     0.00       0.00     0.05
  2   0.0001     -1.98    -0.20       0.04     0.07
  3   0.0001     -3.63    -0.08       0.18     0.19
  4   0.0025    -60.46     0.17       0.35     0.06
  5   0.1557  -2726.31     0.02      35.26    -0.11
  6   0.1559  -2727.78    -0.04      35.02    -0.42
  7   0.9586   5056.65     0.27     115.47    -0.06
  8   0.9587   5053.64    -0.16     115.63     0.08
  9   0.9588   5051.49    -0.05     115.61     0.05
 10   0.9614   4987.00     0.23     116.10     0.26
 11   1.9482   9340.52    -0.01     235.00    -0.01
 12   1.9485   9334.85    -0.14     234.96    -0.11
 13   1.9487   9329.82    -0.01     235.02    -0.09
 14   8.9037  38803.31    -0.08    1078.99    -0.02
 15   8.9038  38799.95     0.01    1079.08     0.05
 16   8.9065  38748.43     0.03    1079.42     0.10
 17  10.0200  40187.29    -0.27    1216.31    -0.04
 18  10.0203  40181.46     0.10    1216.45     0.03
 19  10.0227  40119.21     0.09    1216.66    -0.04
 20  10.0230  40113.04     0.07    1216.68    -0.08
 21  10.0255  40051.22 (   1.62)   1218.90 (   1.84)
 22  10.0257  40043.00     0.04    1217.15     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.

04VB131    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.545    44.573    44.517
ecceobj         0.066     0.066     0.066
incobj          1.743     1.743     1.743
qmin           40.507    40.546    40.474
qmax           48.172    48.217    48.184
amean          44.239    44.267    44.211
amin           43.888    43.915    43.858
amax           44.603    44.630    44.574
emean           0.065     0.065     0.065
emin            0.049     0.049     0.050
emax            0.080     0.081     0.081
imean           1.283     1.286     1.281
imin            0.521     0.530     0.512
imax            1.816     1.804     1.827
excite_mean     0.069     0.069     0.069
fracstop        1.000     1.000     1.000
cjmean          3.098     3.099     3.098

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       186.9     186.9     186.5
kozaiamp        179.9     180.0     180.0