Orbit Fit and Astrometric record for 04VS75

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: 04VS75    
# Created Wed Oct 17 01:08:31 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   26 observations of   26
# Arc:  14.82y
# First observation: 2003/11/20
#  Last observation: 2018/09/14
# Chi-squared of fit:   116.61 DOF:   46 RMS:  0.37
# Min/Max residuals:    -1.18    0.73
# Exact a, adot, b, bdot, g, gdot:
  1.520217E-05  2.402829E-02  1.562372E-06  3.092039E-03  2.430721E-02  1.710325E-03
# Covariance matrix:
  2.8040E-13 -1.0246E-13  2.0721E-14 -1.0827E-14 -1.0108E-14 -2.1903E-13
 -1.0246E-13  6.3257E-14 -1.3050E-14  6.7977E-15 -5.3053E-14  1.3703E-13
  2.0721E-14 -1.3050E-14  1.1261E-13 -1.4305E-14  8.4175E-15 -3.0223E-14
 -1.0827E-14  6.7977E-15 -1.4305E-14  3.8434E-15 -4.3056E-15  1.5757E-14
 -1.0108E-14 -5.3053E-14  8.4175E-15 -4.3056E-15  2.6064E-13 -8.4883E-14
 -2.1903E-13  1.3703E-13 -3.0223E-14  1.5757E-14 -8.4883E-14  3.1794E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.776398   16.792706   -0.638129   -0.010168   -0.753392  2452963.622323
# Heliocentric elements and errors
Epoch:              2452964.5000  =  2003/11/21
Mean Anomaly:           51.50454 +/-     0.028
Argument of Peri:      292.87098 +/-     0.034
Long of Asc Node:       23.54756 +/-     0.000
Inclination:             7.40500 +/-     0.000
Eccentricity:         0.10025960 +/-    0.0001
Semi-Major Axis:     44.36547228 +/-    0.0046
Time of Perihelion: 2437522.3031 +/-       8.8
Perihelion:          39.91740779 +/-    0.0048
Aphelion:            48.81353677 +/-    0.0057
Period (y)              295.5125 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.91562171 +/-    0.0008
Ecliptic Y           12.71698062 +/-    0.0003
Ecliptic Z           -0.55738237 +/-    0.0000
Ecliptic XDOT        -0.00059749 +/-    0.0000
Ecliptic YDOT         0.00264188 +/-    0.0000
Ecliptic ZDOT         0.00034579 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.89611678 +/-    0.0008
Geocenter to KBO     41.14005662 +/-    0.0009
# Hcoef:  6.84

The following table shows the complete astrometric record for 04VS75. 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 (04VS75) followed by the observatory code and reference code for the source of the astrometry.

2003 11  20.12158  01 03 06.09   +05 52 55.0   22.6R 04VS75    695  Ct0489      
2003 11  20.20624  01 03 05.80   +05 52 53.3         04VS75    695  Ct0489      
2004 11  09.15974  01 08 33.19   +06 37 33.1   23.0R 04VS75    695  Cm0643      
2004 11  09.16493  01 08 33.08   +06 37 32.5         04VS75    695  Cm0643      
2004 11  10.25308  01 08 28.89   +06 37 09.1         04VS75    695  Cm0643      
2004 11  18.27020  01 07 59.52   +06 34 28.7   22.9R 04VS75    568  Cm0643      
2004 11  18.32784  01 07 59.31   +06 34 27.6         04VS75    568  Cm0643      
2005 09  26.260876 01 16 39.34   +07 36 49.3   22.5V 04VS75    645  C~2JxB      
2005 09  26.261706 01 16 39.34   +07 36 49.4   23.0V 04VS75    645  C~2JxB      
2005 09  26.264193 01 16 39.34   +07 36 49.4   23.4V 04VS75    645  C~2JxB      
2006 10  19.25970  01 19 46.76   +08 07 46.1   22.4R 04VS75    695  Ct0489      
2006 10  19.36290  01 19 46.27   +08 07 43.4         04VS75    695  Ct0489      
2006 10  20.19075  01 19 42.49   +08 07 22.4         04VS75    695  Ct0489      
2006 10  20.31914  01 19 41.90   +08 07 19.0         04VS75    695  Ct0489      
2006 12  21.11539  01 16 17.81   +07 49 02.9   22.8R 04VS75    695  Ct5519      
2006 12  21.24088  01 16 17.73   +07 49 02.5         04VS75    695  Ct5519      
2008 07  30.31837  01 33 37.58   +09 49 34.6   23.9R 04VS75    250  S~06Al      
2008 07  30.32462  01 33 37.58   +09 49 34.6         04VS75    250  S~06Al      
2008 07  30.36629  01 33 37.56   +09 49 34.6         04VS75    250  S~06Al      
2008 07  30.38435  01 33 37.56   +09 49 34.6         04VS75    250  S~06Al      
2008 10  28.360552 01 28 44.03   +09 23 54.7   22.8V 04VS75    645  C~2JxB      
2008 10  28.361382 01 28 44.01   +09 23 54.8   22.6V 04VS75    645  C~2JxB      
2008 10  28.363869 01 28 44.04   +09 23 54.7   23.2V 04VS75    645  C~2JxB      
2018 09  13.337750 02 20 17.824  +15 51 14.14  23.2R 04VS75    705              
2018 09  14.342300 02 20 14.816  +15 51 02.89        04VS75    705              
2018 09  14.416400 02 20 14.571  +15 51 01.76        04VS75    705              

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     0.08       0.00     0.13
  2   0.0002      0.00     0.01       0.00    -0.08
  3   0.9720      0.00     0.15       0.00     0.66
  4   0.9721      0.00    -1.18       0.00     0.18
  5   0.9750      0.00    -0.23       0.00     0.19
  6   0.9970      0.00     0.08       0.00     0.22
  7   0.9971      0.00    -0.02       0.00     0.19
  8   1.8512      0.00     0.38       0.00    -0.07
  9   1.8512      0.00     0.44       0.00     0.05
 10   1.8512      0.00     0.60       0.00     0.11
 11   2.9135      0.00    -0.19       0.00     0.11
 12   2.9137      0.00    -0.32       0.00     0.06
 13   2.9160      0.00    -0.23       0.00     0.21
 14   2.9164      0.00    -0.11       0.00     0.08
 15   3.0855      0.00    -0.57       0.00     0.36
 16   3.0859      0.00     0.57       0.00     0.59
 17   4.6932      0.00     0.07       0.00    -0.64
 18   4.6932      0.00     0.10       0.00    -0.64
 19   4.6933      0.00     0.02       0.00    -0.64
 20   4.6934      0.00     0.12       0.00    -0.63
 21   4.9397      0.00     0.36       0.00    -0.36
 22   4.9397      0.00     0.11       0.00    -0.24
 23   4.9397      0.00     0.73       0.00    -0.28
 24  14.8151      0.00    -0.02       0.00     0.34
 25  14.8179      0.00    -0.00       0.00     0.39
 26  14.8181      0.00    -0.22       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.

04VS75    quality flag:3

Type:        9:5EEEE   9:5EEEE   9:5EEEE

axisobj        44.868    44.868    44.868
ecceobj         0.107     0.107     0.107
incobj          7.370     7.370     7.370
qmin           39.223    39.219    39.229
qmax           50.223    50.216    50.234
amean          44.554    44.555    44.554
amin           44.170    44.171    44.169
amax           44.959    44.963    44.963
emean           0.105     0.105     0.105
emin            0.093     0.093     0.093
emax            0.117     0.117     0.117
imean           6.864     6.865     6.864
imin            6.184     6.185     6.182
imax            7.489     7.489     7.493
excite_mean     0.159     0.159     0.159
fracstop        1.000     1.000     1.000
cjmean          3.077     3.077     3.077

libcent 0       180.3     180.7     182.6
libamp  0       146.0     146.3     147.5
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       185.7     185.7     185.5
kozaiamp        180.0     180.0     180.0