Orbit Fit and Astrometric record for 05VB123

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: 05VB123   
# Created Tue Oct 16 06:36:12 2018
# Orbit generated from Bernstein formalism
# Fitting    6 observations of    6
# Arc:  28.99d
# First observation: 2005/11/03
#  Last observation: 2005/12/02
Preliminary a, adot, b, bdot, g, gdot:
   0.000000   0.149468  -0.000001   0.057085   0.072807   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:     1.54 DOF:    7 RMS:  0.09
# Min/Max residuals:    -0.09    0.19
# Exact a, adot, b, bdot, g, gdot:
  2.668134E-05  1.129872E-01  1.253742E-05  5.721825E-02  6.719429E-02 -6.341870E-03
# Covariance matrix:
  9.3498E-11  3.8375E-07  2.4599E-13  3.3855E-09  6.3165E-08 -5.4496E-08
  3.8375E-07  1.5840E-03  9.9210E-10  1.3757E-05  2.6053E-04 -2.7374E-04
  2.4599E-13  9.9210E-10  4.8981E-13  1.0475E-11  1.7012E-10  1.6357E-09
  3.3855E-09  1.3757E-05  1.0475E-11  1.9461E-07  2.3276E-06  1.4490E-05
  6.3165E-08  2.6053E-04  1.7012E-10  2.3276E-06  4.2908E-05 -3.0442E-05
 -5.4496E-08 -2.7374E-04  1.6357E-09  1.4490E-05 -3.0442E-05  3.8424E-03
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.851385   41.754628    0.015867    0.032295   -0.995588  2453677.821603
# Heliocentric elements and errors
Epoch:              2453670.5000  =  2005/10/27
Mean Anomaly:          356.37609 +/-    32.339
Argument of Peri:       13.78650 +/-    90.646
Long of Asc Node:       38.28375 +/-     1.167
Inclination:            26.94024 +/-     7.998
Eccentricity:         0.43163450 +/-    0.4227
Semi-Major Axis:     27.80186654 +/-   17.5202
Time of Perihelion: 2454209.4942 +/-    4782.8
Perihelion:          15.80162180 +/-   15.4042
Aphelion:            39.80211128 +/-   27.6995
Period (y)              146.5950 +/-    138.57
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           11.84576952 +/-    1.0818
Ecliptic Y           10.55549683 +/-    0.9656
Ecliptic Z            0.48099156 +/-    0.0469
Ecliptic XDOT        -0.00331240 +/-    0.0021
Ecliptic YDOT         0.00320579 +/-    0.0018
Ecliptic ZDOT         0.00232182 +/-    0.0002
# Distances at JD0 (AU)
Heliocenter to KBO   15.87362976 +/-    1.0315
Geocenter to KBO     14.88221772 +/-    1.4508
# Hcoef: 10.64

The following table shows the complete astrometric record for 05VB123. 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 (05VB123) followed by the observatory code and reference code for the source of the astrometry.

2005 11  03.32086  02 34 53.28   +17 07 17.5   22.2R 05VB123   695  Cq2844      
2005 11  03.36735  02 34 52.70   +17 07 16.1         05VB123   695  Cq2844      
2005 11  03.41285  02 34 52.13   +17 07 15.0         05VB123   695  Cq2844      
2005 12  02.20574  02 29 16.65   +16 55 58.4   22.3R 05VB123   695  Cq2844      
2005 12  02.25787  02 29 16.11   +16 55 57.5         05VB123   695  Cq2844      
2005 12  02.31045  02 29 15.56   +16 55 56.4         05VB123   695  Cq2844      

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    -0.02       0.00     0.19
  2   0.0001     -8.34    -0.00       1.25    -0.09
  3   0.0003    -16.45     0.05       2.74    -0.09
  4   0.0791  -4798.12     0.01     871.01    -0.06
  5   0.0792  -4805.75     0.06     872.61     0.05
  6   0.0794  -4813.59    -0.04     874.08     0.02

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.

05VB123    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0