Orbit Fit and Astrometric record for 10VX224

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: 10VX224   
# Created Mon Oct 23 01:37:56 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:   3.11y
# First observation: 2010/10/31
#  Last observation: 2013/12/11
Preliminary a, adot, b, bdot, g, gdot:
  -0.000086   0.024911   0.000008  -0.001608   0.025480   0.000000
# Chi-squared of fit:    20.77 DOF:   30 RMS:  0.19
# Min/Max residuals:    -0.48    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.548577E-05  2.453360E-02 -1.122567E-06 -1.576108E-03  2.545709E-02 -4.990280E-03
# Covariance matrix:
  2.7559E-13 -2.5987E-13 -3.1889E-15  1.2025E-14  1.8197E-13 -2.6380E-12
 -2.5987E-13  9.1136E-13  1.4947E-14 -5.9175E-14  4.3934E-14  1.2467E-11
 -3.1889E-15  1.4947E-14  2.0998E-13 -8.1940E-14  2.1838E-16  2.1661E-13
  1.2025E-14 -5.9175E-14 -8.1940E-14  5.4607E-14 -4.8644E-15 -8.5660E-13
  1.8197E-13  4.3934E-14  2.1838E-16 -4.8644E-15  1.2760E-12  3.2840E-13
 -2.6380E-12  1.2467E-11  2.1661E-13 -8.5660E-13  3.2840E-13  1.8064E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -15.485013   49.347506    0.194336   -0.259220   -0.935673  2455501.022556
# Heliocentric elements and errors
Epoch:              2455500.5000  =  2010/10/31
Mean Anomaly:          279.21658 +/-     0.070
Argument of Peri:        0.72888 +/-     0.039
Long of Asc Node:      152.79598 +/-     0.002
Inclination:            15.53896 +/-     0.000
Eccentricity:         0.20238218 +/-    0.0005
Semi-Major Axis:     39.88721446 +/-    0.0089
Time of Perihelion: 2476148.0588 +/-      16.6
Perihelion:          31.81475294 +/-    0.0217
Aphelion:            47.95967598 +/-    0.0231
Period (y)              251.9177 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.44564382 +/-    0.0011
Ecliptic Y           29.32959039 +/-    0.0013
Ecliptic Z          -10.48775959 +/-    0.0005
Ecliptic XDOT        -0.00236836 +/-    0.0000
Ecliptic YDOT         0.00129854 +/-    0.0000
Ecliptic ZDOT        -0.00002007 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.22062609 +/-    0.0012
Geocenter to KBO     39.28178644 +/-    0.0017
# Hcoef:  6.40

The following table shows the complete astrometric record for 10VX224. 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 (10VX224) followed by the observatory code and reference code for the source of the astrometry.

2010 10  31.52179  03 24 14.809  +02 37 45.45  22.4r 10VX224   F51  C~1w3l      
2010 11  10.44612  03 23 26.318  +02 33 56.38  22.5w 10VX224   F51  C~1w3l      
2010 11  10.45953  03 23 26.252  +02 33 56.14  22.5w 10VX224   F51  C~1w3l      
2010 11  10.47394  03 23 26.165  +02 33 55.90  22.5w 10VX224   F51  C~1w3l      
2010 11  16.51476  03 22 56.060  +02 31 54.68  22.7i 10VX224   F51  C~1w3l      
2010 11  30.39630  03 21 47.800  +02 28 20.43  22.5w 10VX224   F51  C~1w3l      
2011 10  25.57238  03 30 17.944  +02 57 08.85  22.5r 10VX224   F51  C~1w3l      
2011 11  25.45001  03 27 46.613  +02 46 14.29  22.8w 10VX224   F51  C~1w3l      
2012 10  20.42665  03 36 15.166  +03 15 53.50  22.0w 10VX224   F51  C~1w3l      
2012 10  20.53216  03 36 14.693  +03 15 50.60  22.3w 10VX224   F51  C~1w3l      
2012 10  20.56096  03 36 14.566  +03 15 49.79  22.2w 10VX224   F51  C~1w3l      
2012 11  12.49765  03 34 25.565  +03 06 35.95  22.1w 10VX224   F51  C~1w3l      
2013 11  04.43757  03 40 48.461  +03 26 25.34  22.2w 10VX224   F51  C~1w3l      
2013 11  04.45112  03 40 48.412  +03 26 24.84  22.1w 10VX224   F51  C~1w3l      
2013 11  04.47831  03 40 48.259  +03 26 24.22  22.2w 10VX224   F51  C~1w3l      
2013 11  27.48110  03 38 52.230  +03 19 13.11  22.2r 10VX224   F51  C~1w3l      
2013 11  27.49402  03 38 52.168  +03 19 12.88  21.9r 10VX224   F51  C~1w3l      
2013 12  11.31054  03 37 44.951  +03 16 54.81  21.4i 10VX224   F51  C~1w3l      

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    -0.05       0.00     0.03
  2   0.0272   -761.17     0.15     -32.67     0.20
  3   0.0272   -762.19     0.18     -32.65     0.24
  4   0.0272   -763.51    -0.00     -32.54     0.36
  5   0.0438  -1230.65     0.01     -32.49    -0.10
  6   0.0818  -2274.19    -0.39      26.34    -0.25
  7   0.9830   5557.64     0.09    -284.34    -0.48
  8   1.0676   3197.27     0.31    -330.71    -0.10
  9   1.9710  11026.41     0.00    -575.85    -0.13
 10   1.9713  11018.80    -0.14    -576.83    -0.12
 11   1.9714  11016.75    -0.15    -577.13    -0.14
 12   2.0342   9292.57    -0.22    -692.76     0.13
 13   3.0114  15160.89     0.00   -1015.27     0.33
 14   3.0114  15160.05     0.22   -1015.56     0.08
 15   3.0115  15157.66    -0.03   -1015.58     0.16
 16   3.0745  13359.20     0.03    -987.24     0.07
 17   3.0745  13358.24     0.08    -987.22    -0.00
 18   3.1124  12345.95    -0.11    -862.26    -0.26

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.

10VX224    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        40.047    40.071    40.022
ecceobj         0.202     0.202     0.201
incobj         15.532    15.532    15.532
qmin           31.264    30.593    30.525
qmax           49.828    49.317    53.558
amean          39.817    39.462    39.981
amin           38.700    38.747    38.765
amax           41.150    40.222    42.363
emean           0.183     0.204     0.190
emin            0.147     0.165     0.118
emax            0.217     0.228     0.267
imean          13.438     8.035    13.952
imin           10.078     5.244     9.905
imax           17.594    14.570    17.926
excite_mean     0.297     0.250     0.308
fracstop        1.000     1.000     1.000
cjmean          2.953     2.979     2.949

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       169.2     171.0     169.9
kozaiamp        180.0     180.0     180.0