Orbit Fit and Astrometric record for 04VE131

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: 04VE131   
# Created Wed Oct 17 01:08:33 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   16 observations of   16
# Arc:   8.91y
# First observation: 2004/11/09
#  Last observation: 2013/10/07
# Chi-squared of fit:    20.31 DOF:   26 RMS:  0.20
# Min/Max residuals:    -0.71    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.481778E-05  2.576793E-02 -2.225821E-06 -2.344715E-03  2.592846E-02 -6.743861E-03
# Covariance matrix:
  3.0322E-13 -3.0737E-13 -1.2837E-14  2.2357E-14  3.1009E-13 -9.6516E-13
 -3.0737E-13  4.8440E-13  2.1352E-14 -3.7232E-14 -4.5732E-13  1.6067E-12
 -1.2837E-14  2.1352E-14  1.2792E-13 -2.1282E-14 -1.8157E-14  7.3089E-14
  2.2357E-14 -3.7232E-14 -2.1282E-14  1.3151E-14  3.1135E-14 -1.2760E-13
  3.1009E-13 -4.5732E-13 -1.8157E-14  3.1135E-14  1.0950E-12 -1.3503E-12
 -9.6516E-13  1.6067E-12  7.3089E-14 -1.2760E-13 -1.3503E-12  5.5047E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.176401   40.926316   -0.105835   -0.002935   -0.987174  2453318.884993
# Heliocentric elements and errors
Epoch:              2453318.5000  =  2004/11/09
Mean Anomaly:          298.51101 +/-     0.021
Argument of Peri:      272.83238 +/-     0.035
Long of Asc Node:      219.19485 +/-     0.000
Inclination:             5.20405 +/-     0.000
Eccentricity:         0.25912353 +/-    0.0001
Semi-Major Axis:     42.21998405 +/-    0.0078
Time of Perihelion: 2470433.2424 +/-      23.6
Perihelion:          31.27979293 +/-    0.0065
Aphelion:            53.16017518 +/-    0.0102
Period (y)              274.3376 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.81166754 +/-    0.0012
Ecliptic Y           25.99284998 +/-    0.0010
Ecliptic Z           -0.11883215 +/-    0.0000
Ecliptic XDOT        -0.00232220 +/-    0.0000
Ecliptic YDOT         0.00158161 +/-    0.0000
Ecliptic ZDOT        -0.00024530 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.55237495 +/-    0.0011
Geocenter to KBO     38.56786173 +/-    0.0016
# Hcoef:  7.85

The following table shows the complete astrometric record for 04VE131. 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 (04VE131) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.38425  02 34 14.06   +14 56 12.4   24.0g 04VE131   568  C~0WzI      
2004 11  09.41074  02 34 13.92   +14 56 11.6   24.0g 04VE131   568  C~0WzI      
2004 11  09.43671  02 34 13.78   +14 56 10.9   23.7g 04VE131   568  C~0WzI      
2004 11  10.30006  02 34 09.43   +14 55 49.1   23.8g 04VE131   568  C~0WzI      
2005 01  05.21941  02 30 41.11   +14 38 06.0   23.4i 04VE131   568  C~0WzI      
2005 01  05.27535  02 30 41.04   +14 38 05.7   23.3i 04VE131   568  C~0WzI      
2005 01  05.34540  02 30 40.91   +14 38 05.1   23.2i 04VE131   568  C~0WzI      
2005 10  25.50968  02 41 32.80   +15 22 11.9   23.2r 04VE131   568  C~0WzI      
2005 10  25.54219  02 41 32.63   +15 22 11.1   23.4r 04VE131   568  C~0WzI      
2005 10  25.57629  02 41 32.46   +15 22 10.2   23.6r 04VE131   568  C~0WzI      
2005 10  26.54983  02 41 27.51   +15 21 45.5   23.3r 04VE131   568  C~0WzI      
2006 10  21.98902  02 47 59.46   +15 42 55.0         04VE131   950  C~0WzI      
2006 10  22.09446  02 47 58.94   +15 42 52.8         04VE131   950  C~0WzI      
2006 10  22.17303  02 47 58.53   +15 42 50.9         04VE131   950  C~0WzI      
2013 10  07.31065  03 35 00.45   +17 48 30.6   22.2R 04VE131   695  C~0zdg      
2013 10  07.39584  03 35 00.13   +17 48 29.6         04VE131   695  C~0zdg      

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     0.23
  2   0.0001      0.00     0.14       0.00     0.10
  3   0.0001      0.00     0.05       0.00     0.07
  4   0.0025      0.00     0.15       0.00     0.17
  5   0.1556      0.00    -0.24       0.00     0.00
  6   0.1558      0.00     0.14       0.00     0.20
  7   0.1560      0.00    -0.04       0.00     0.22
  8   0.9586      0.00     0.08       0.00    -0.06
  9   0.9587      0.00     0.03       0.00    -0.05
 10   0.9588      0.00     0.10       0.00    -0.10
 11   0.9614      0.00    -0.32       0.00    -0.71
 12   1.9483      0.00     0.12       0.00    -0.17
 13   1.9486      0.00     0.31       0.00     0.13
 14   1.9488      0.00     0.11       0.00     0.11
 15   8.9088      0.00    -0.08       0.00    -0.13
 16   8.9090      0.00     0.14       0.00     0.25

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.

04VE131    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.640    42.640    42.640
ecceobj         0.258     0.258     0.258
incobj          5.177     5.177     5.177
qmin           30.893    30.893    30.893
qmax           54.269    54.269    54.269
amean          42.326    42.326    42.326
amin           41.919    41.919    41.919
amax           42.823    42.823    42.823
emean           0.253     0.253     0.253
emin            0.239     0.239     0.239
emax            0.268     0.268     0.268
imean           6.599     6.599     6.599
imin            5.941     5.941     5.941
imax            7.106     7.106     7.106
excite_mean     0.278     0.278     0.278
fracstop        1.000     1.000     1.000
cjmean          2.990     2.990     2.990

libcent 0       180.1     180.1     180.1
libamp  0        49.6      49.7      49.6
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       211.3     211.3     211.3
kozaiamp         61.3      61.3      61.2