Orbit Fit and Astrometric record for 10VW224

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: 10VW224   
# Created Tue Jan 23 02:37:43 2018
# Orbit generated from Bernstein formalism
# Fitting   28 observations of   29
# Arc:   7.75y
# First observation: 2006/01/31
#  Last observation: 2013/11/01
Preliminary a, adot, b, bdot, g, gdot:
  -0.000083   0.016815   0.000021   0.001999   0.020972   0.000000
# Chi-squared of fit:    16.34 DOF:   50 RMS:  0.14
# Min/Max residuals:    -0.39    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.295361E-05  1.664765E-02  1.865082E-06  1.972944E-03  2.024036E-02  3.664195E-05
# Covariance matrix:
  4.8762E-13 -1.4126E-13  6.4957E-15 -8.6318E-15 -9.1586E-14 -6.1436E-13
 -1.4126E-13  1.8941E-13 -1.8282E-14  1.7554E-14 -3.3623E-14  1.3224E-12
  6.4957E-15 -1.8282E-14  4.0623E-13 -7.0101E-14  5.6225E-15 -1.3585E-13
 -8.6318E-15  1.7554E-14 -7.0101E-14  1.4990E-14 -6.4059E-16  1.3346E-13
 -9.1586E-14 -3.3623E-14  5.6225E-15 -6.4059E-16  2.1605E-13 -1.1954E-13
 -6.1436E-13  1.3224E-12 -1.3585E-13  1.3346E-13 -1.1954E-13  1.0008E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.706593   62.020252   -0.918082   -0.035259   -0.354034  2453766.710066
# Heliocentric elements and errors
Epoch:              2453760.5000  =  2006/01/25
Mean Anomaly:          171.28380 +/-     0.072
Argument of Peri:      146.95645 +/-     0.068
Long of Asc Node:      102.40978 +/-     0.001
Inclination:             8.89690 +/-     0.000
Eccentricity:         0.14068941 +/-    0.0001
Semi-Major Axis:     43.67468305 +/-    0.0039
Time of Perihelion: 2509025.4471 +/-      19.9
Perihelion:          37.53011750 +/-    0.0045
Aphelion:            49.81924860 +/-    0.0054
Period (y)              288.6376 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           22.41632011 +/-    0.0005
Ecliptic Y           44.15791639 +/-    0.0010
Ecliptic Z           -4.91258072 +/-    0.0001
Ecliptic XDOT        -0.00197092 +/-    0.0000
Ecliptic YDOT         0.00107807 +/-    0.0000
Ecliptic ZDOT         0.00026505 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   49.76491170 +/-    0.0009
Geocenter to KBO     49.40622807 +/-    0.0011
# Hcoef:  5.63

The following table shows the complete astrometric record for 10VW224. 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 (10VW224) followed by the observatory code and reference code for the source of the astrometry.

2006 01  31.209312 04 04 24.75   +14 58 11.8   22.0V 10VW224   645  C~2POO      
2006 01  31.210141 04 04 24.74   +14 58 11.9   21.8V 10VW224   645  C~2POO      
2006 01  31.212629 04 04 24.75   +14 58 11.9   23.1V 10VW224   645  C~2POO      
2010 11  09.53651  04 28 29.240  +16 30 33.86  22.9w 10VW224   F51  C~1w3l      
2010 11  09.53722  04 28 29.237  +16 30 33.87  22.8w 10VW224   F51  C~1w3l      
2010 11  09.55473  04 28 29.168  +16 30 33.58  22.8w 10VW224   F51  C~1w3l      
2010 11  09.57296  04 28 29.079  +16 30 33.42  22.9w 10VW224   F51  C~1w3l      
2010 11  09.57363  04 28 29.074  +16 30 33.32  23.2w 10VW224   F51  C~1w3l      
2010 11  09.59112  04 28 29.010  +16 30 33.43  22.6w 10VW224   F51  C~1w3l      
2010 11  09.59178  04 28 28.977  +16 30 33.50  23.0w 10VW224   F51  C~1w3l      
2010 11  11.53913  04 28 21.059  +16 30 13.61  22.3r 10VW224   F51  C~1w3l      
2010 11  17.50522  04 27 55.998  +16 29 13.33  21.7i 10VW224   F51  C~1w3l      
2010 11  17.50588  04 27 55.999  +16 29 13.95  22.0i 10VW224   F51  C~1w3l      
2011 10  26.42469  04 33 16.442  +16 49 06.39  22.9w 10VW224   F51  C~1w3l      
2011 10  26.43920  04 33 16.409  +16 49 06.02  23.0w 10VW224   F51  C~1w3l      
2011 10  26.45377  04 33 16.350  +16 49 06.04  22.7w 10VW224   F51  C~1w3l      
2011 10  26.46833  04 33 16.320  +16 49 05.60  22.8w 10VW224   F51  C~1w3l      
2011 11  24.54957  04 31 20.317  +16 44 23.23  22.3r 10VW224   F51  C~1w3l      
2011 11  24.56131  04 31 20.262  +16 44 23.17  22.6r 10VW224   F51  C~1w3l      
2011 11  30.31572  04 30 54.897  +16 43 32.22  22.1i 10VW224   F51  C~1w3l      
2011 11  30.32831  04 30 54.841  +16 43 32.21  22.2i 10VW224   F51  C~1w3l      
2011 12  01.52335  04 30 49.543  +16 43 22.02  22.2r 10VW224   F51  C~1w3l      
2012 11  25.35298  04 35 08.046  +17 00 08.81  21.5i 10VW224   F51  C~1w3l      
2013 01  07.24229  04 32 10.512  +16 55 58.06  22.2w 10VW224   F51  C~1w3l      
2013 01  07.25996  04 32 10.459  +16 55 58.02  22.3w 10VW224   F51  C~1w3l      
2013 01  07.27696  04 32 10.383  +16 55 58.08  22.4w 10VW224   F51  C~1w3l      
2013 01  07.29299  04 32 10.356  +16 55 58.18  22.2w 10VW224   F51  C~1w3l      
2013 02  10.33786  04 30 53.619  +16 56 46.24  21.7g 10VW224   F51  C~1w3l      
2013 11  01.59016  04 40 41.651  +17 19 22.89  21.7r 10VW224   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     0.01       0.00    -0.07
  2   0.0000     -0.12    -0.10       0.13     0.05
  3   0.0000      0.02     0.09       0.10     0.01
  4   4.7730  21588.19     0.08    1716.99    -0.02
  5   4.7730  21588.14     0.08    1717.01    -0.00
  6   4.7730  21587.11     0.11    1716.88    -0.12
  7   4.7731  21585.80    -0.09    1716.94    -0.06
  8   4.7731  21585.71    -0.13    1716.85    -0.14
  9   4.7731  21584.82     0.03    1717.11     0.13
 10   4.7731  21584.35    -0.39    1717.26     0.28
 11   4.7785  21467.49     0.20    1716.40     0.21
 12   4.7948  21098.14     0.12    1716.46     0.02
 13   4.7948  21098.26 (   0.28)   1717.07 (   0.63)
 14   5.7336  25897.98    -0.07    2150.72     0.15
 15   5.7337  25897.45     0.14    2150.43    -0.12
 16   5.7337  25896.60     0.04    2150.59     0.06
 17   5.7338  25896.10     0.28    2150.22    -0.29
 18   5.8134  24181.41    -0.03    2137.52    -0.01
 19   5.8134  24180.61    -0.06    2137.59     0.04
 20   5.8292  23807.81    -0.15    2146.10    -0.12
 21   5.8292  23807.00    -0.13    2146.22    -0.03
 22   5.8325  23729.23    -0.05    2148.48    -0.10
 23   6.8176  27612.98    -0.16    2556.46     0.09
 24   6.9351  25016.67    -0.08    2711.99    -0.13
 25   6.9351  25015.90     0.04    2712.07    -0.15
 26   6.9352  25014.82    -0.19    2712.30    -0.02
 27   6.9352  25014.45     0.24    2712.47     0.05
 28   7.0284  23920.36     0.18    2938.06     0.20
 29   7.7519  32620.15    -0.01    2973.38     0.10

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.

10VW224    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        44.109    44.121    44.097
ecceobj         0.131     0.130     0.131
incobj          8.883     8.883     8.883
qmin           36.274    35.557    36.503
qmax           51.844    52.444    51.433
amean          43.775    43.822    43.725
amin           43.210    43.254    43.247
amax           44.269    44.278    44.255
emean           0.126     0.152     0.141
emin            0.087     0.126     0.113
emax            0.172     0.187     0.164
imean           6.786     7.455     6.806
imin            5.362     5.568     5.348
imax            7.964     9.094     8.632
excite_mean     0.174     0.201     0.185
fracstop        1.000     1.000     1.000
cjmean          3.063     3.052     3.058

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       179.8     183.8     182.6
kozaiamp        179.9     180.0     180.0