Orbit Fit and Astrometric record for 04VY130

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: 04VY130   
# Created Mon Oct 23 01:37:34 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   4.78y
# First observation: 2004/11/09
#  Last observation: 2009/08/19
Preliminary a, adot, b, bdot, g, gdot:
   0.000840   0.046966  -0.000051  -0.008497   0.036813   0.000000
# Chi-squared of fit:    56.21 DOF:   60 RMS:  0.23
# Min/Max residuals:    -0.66    0.52
# Exact a, adot, b, bdot, g, gdot:
  2.189363E-05  4.765094E-02 -5.017413E-06 -8.576237E-03  3.637874E-02 -2.967925E-04
# Covariance matrix:
  3.0806E-13 -1.8443E-13 -1.1069E-14  1.5163E-14  2.4475E-14 -4.3331E-13
 -1.8443E-13  1.7275E-13  1.6337E-14 -2.2301E-14  2.8937E-14  6.2839E-13
 -1.1069E-14  1.6337E-14  2.1554E-13 -8.0868E-14  1.0134E-14  8.3081E-14
  1.5163E-14 -2.2301E-14 -8.0868E-14  4.0077E-14 -1.3623E-14 -1.1316E-13
  2.4475E-14  2.8937E-14  1.0134E-14 -1.3623E-14  1.9517E-13  3.5948E-13
 -4.3331E-13  6.2839E-13  8.3081E-14 -1.1316E-13  3.5948E-13  3.1594E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.021065   42.085069   -0.085935    0.000468   -0.989108  2453318.889873
# Heliocentric elements and errors
Epoch:              2453310.5000  =  2004/11/01
Mean Anomaly:          359.29852 +/-     0.005
Argument of Peri:      181.10739 +/-     0.010
Long of Asc Node:      222.37720 +/-     0.000
Inclination:            10.21403 +/-     0.000
Eccentricity:         0.27462216 +/-    0.0000
Semi-Major Axis:     39.25366333 +/-    0.0030
Time of Perihelion: 2453485.5381 +/-       1.3
Perihelion:          28.47373751 +/-    0.0029
Aphelion:            50.03358915 +/-    0.0042
Period (y)              245.9396 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.07247813 +/-    0.0002
Ecliptic Y           19.15159397 +/-    0.0002
Ecliptic Z            0.00996271 +/-    0.0000
Ecliptic XDOT        -0.00242116 +/-    0.0000
Ecliptic YDOT         0.00263950 +/-    0.0000
Ecliptic ZDOT        -0.00064536 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.47512925 +/-    0.0002
Geocenter to KBO     27.48857931 +/-    0.0003
# Hcoef:  8.08

The following table shows the complete astrometric record for 04VY130. 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 (04VY130) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.38913  02 38 33.02   +15 28 56.3   22.2g 04VY130   568  C~0Ur5      
2004 11  09.41558  02 38 32.84   +15 28 55.3   22.5g 04VY130   568  C~0Ur5      
2004 11  09.44156  02 38 32.66   +15 28 54.3   22.4g 04VY130   568  C~0Ur5      
2005 01  05.30187  02 33 57.23   +15 02 33.8         04VY130   568  C~0Ur5      
2005 01  05.35469  02 33 57.13   +15 02 33.0         04VY130   568  C~0Ur5      
2006 10  25.43364  03 03 08.03   +16 17 05.3   22.9r 04VY130   568  C~0Ur5      
2006 10  25.47239  03 03 07.76   +16 17 04.1   22.8r 04VY130   568  C~0Ur5      
2006 10  25.50880  03 03 07.52   +16 17 03.1   22.6r 04VY130   568  C~0Ur5      
2006 10  26.38561  03 03 01.86   +16 16 34.7   22.9r 04VY130   568  C~0Ur5      
2006 10  26.41818  03 03 01.64   +16 16 33.6   22.8r 04VY130   568  C~0Ur5      
2006 10  26.46301  03 03 01.34   +16 16 31.9   22.9r 04VY130   568  C~0Ur5      
2006 10  26.62624  03 03 00.26   +16 16 26.6   22.4r 04VY130   568  C~0Ur5      
2006 10  27.46031  03 02 54.83   +16 15 59.6   22.5r 04VY130   568  C~0Ur5      
2006 10  27.50920  03 02 54.50   +16 15 58.0   22.6r 04VY130   568  C~0Ur5      
2006 10  27.55676  03 02 54.19   +16 15 56.3   22.8r 04VY130   568  C~0Ur5      
2007 01  15.28578  02 56 00.81   +15 41 27.4         04VY130   568  C~0Ur5      
2007 01  15.33162  02 56 00.75   +15 41 26.6         04VY130   568  C~0Ur5      
2007 01  15.37302  02 56 00.68   +15 41 26.0         04VY130   568  C~0Ur5      
2007 01  16.27905  02 55 59.53   +15 41 18.8         04VY130   568  C~0Ur5      
2007 01  16.31895  02 55 59.48   +15 41 18.8         04VY130   568  C~0Ur5      
2007 01  16.35875  02 55 59.44   +15 41 18.3         04VY130   568  C~0Ur5      
2007 09  11.49210  03 17 53.38   +16 50 57.0   22.5r 04VY130   695  C~0Ur5      
2007 09  12.42051  03 17 51.47   +16 50 42.6   22.7r 04VY130   695  C~0Ur5      
2007 09  12.46172  03 17 51.37   +16 50 42.0   22.5r 04VY130   695  C~0Ur5      
2007 09  12.50516  03 17 51.27   +16 50 41.3   22.5r 04VY130   695  C~0Ur5      
2007 09  17.36484  03 17 39.30   +16 49 18.5         04VY130   675  C~0Ur5      
2007 09  17.37038  03 17 39.31   +16 49 18.8         04VY130   675  C~0Ur5      
2007 09  17.41046  03 17 39.17   +16 49 17.7         04VY130   675  C~0Ur5      
2007 09  17.41649  03 17 39.16   +16 49 17.6   22.6R 04VY130   675  C~0Ur5      
2007 11  08.24446  03 13 05.35   +16 25 53.8   21.3r 04VY130   695  C~0Ur5      
2007 11  08.37621  03 13 04.44   +16 25 49.6   21.2r 04VY130   695  C~0Ur5      
2009 08  18.40518  03 40 15.10   +17 17 13.7         04VY130   675  C~0Ur5      
2009 08  19.46125  03 40 17.12   +17 17 10.5         04VY130   675  C~0Ur5      

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    -0.24       0.00     0.27
  2   0.0001     -2.78    -0.26      -0.15     0.22
  3   0.0001     -5.57    -0.33      -0.31     0.18
  4   0.1558  -4285.19     0.39    -272.57    -0.58
  5   0.1560  -4286.81     0.43    -272.88    -0.66
  6   1.9577  21270.95     0.27   -3472.75    -0.18
  7   1.9578  21266.84     0.08   -3472.82    -0.07
  8   1.9579  21263.21     0.13   -3472.81     0.11
  9   1.9603  21176.10     0.18   -3477.36     0.20
 10   1.9604  21172.72     0.10   -3477.53     0.17
 11   1.9605  21168.05    -0.01   -3477.96    -0.05
 12   1.9610  21151.46    -0.01   -3478.71     0.01
 13   1.9632  21067.98    -0.10   -3482.83     0.25
 14   1.9634  21062.91    -0.16   -3483.04     0.27
 15   1.9635  21058.10    -0.10   -3483.42     0.11
 16   2.1818  14706.70    -0.06   -3779.38     0.52
 17   2.1819  14705.64    -0.07   -3779.90     0.10
 18   2.1820  14704.49    -0.28   -3780.18    -0.08
 19   2.1845  14686.42    -0.16   -3782.31     0.13
 20   2.1846  14685.73    -0.02   -3782.10     0.43
 21   2.1847  14685.03     0.10   -3782.42     0.21
 22   2.8367  34317.67    -0.25   -4977.10    -0.14
 23   2.8392  34286.62    -0.02   -4983.90    -0.16
 24   2.8394  34285.03    -0.10   -4984.10    -0.09
 25   2.8395  34283.42    -0.13   -4984.41    -0.10
 26   2.8528  34090.79     0.03   -5019.69    -0.39
 27   2.8528  34091.02     0.50   -5019.43    -0.10
 28   2.8529  34088.73     0.05   -5019.97    -0.38
 29   2.8529  34088.56     0.16   -5020.03    -0.40
 30   2.9948  29821.46    -0.02   -5332.43     0.04
 31   2.9952  29807.43     0.02   -5332.96     0.06
 32   4.7721  54261.85     0.02   -8340.57     0.04
 33   4.7750  54291.22    -0.12   -8350.91     0.06

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.

04VY130    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.802    39.811    39.793
ecceobj         0.284     0.284     0.284
incobj         10.177    10.177    10.177
qmin           27.238    27.182    27.302
qmax           52.071    52.219    52.035
amean          39.454    39.454    39.454
amin           39.076    39.083    39.056
amax           39.909    39.900    39.926
emean           0.280     0.280     0.280
emin            0.255     0.256     0.258
emax            0.308     0.309     0.306
imean          10.263    10.231    10.290
imin            8.466     8.460     8.495
imax           11.538    11.548    11.522
excite_mean     0.332     0.332     0.332
fracstop        1.000     1.000     1.000
cjmean          2.925     2.925     2.925

libcent 0       179.7     180.4     180.0
libamp  0        40.5      34.8      45.6
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       159.7     156.7     163.1
kozaiamp        180.0     180.0     180.0