Orbit Fit and Astrometric record for VNH0003

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: VNH0003   
# Created Wed Jun  4 01:12:16 2025
# Orbit generated from Bernstein formalism
# Fitting     22 observations of     22
# Arc:  65.27d
# First observation: 2011/04/28
#  Last observation: 2011/07/02
Preliminary a, adot, b, bdot, g, gdot:
   0.000000   0.027977  -0.000002  -0.002189   0.025589   0.000000
# Chi-squared of fit:    11.22 DOF:     38 RMS:  0.13
# Min/Max residuals:    -0.34    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.664569E-05  2.581378E-02 -1.327317E-06 -2.120126E-03  2.489797E-02 -3.167858E-03
# Covariance matrix:
  4.4447E-13 -3.1351E-11  2.9967E-14  7.2880E-13 -6.3549E-12 -2.2839E-10
 -3.1351E-11  7.0931E-08 -8.4789E-11 -1.9421E-09  1.8254E-08  1.3174E-06
  2.9967E-14 -8.4789E-11  3.6652E-13  4.0230E-13 -2.1864E-11 -1.5852E-09
  7.2880E-13 -1.9421E-09  4.0230E-13  7.1747E-11 -5.0047E-10 -3.6227E-08
 -6.3549E-12  1.8254E-08 -2.1864E-11 -5.0047E-10  4.7076E-09  3.4144E-07
 -2.2839E-10  1.3174E-06 -1.5852E-09 -3.6227E-08  3.4144E-07  2.5082E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.702620  -82.325194    0.877511    0.023547   -0.499351  2455679.768856
# Heliocentric elements and errors
Epoch:              2455670.5000  =  2011/04/19
Mean Anomaly:          320.67267 +/-    20.864
Argument of Peri:      206.49636 +/-    40.682
Long of Asc Node:      126.22701 +/-     0.311
Inclination:             5.36083 +/-     0.051
Eccentricity:         0.19451255 +/-    0.1653
Semi-Major Axis:     46.82428447 +/-    2.3026
Time of Perihelion: 2468455.3948 +/-    6716.9
Perihelion:          37.71637368 +/-    7.9594
Aphelion:            55.93219526 +/-    8.2145
Period (y)              320.4165 +/-     23.63
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            4.55973428 +/-    0.0148
Ecliptic Y          -40.37238510 +/-    0.1096
Ecliptic Z            1.89377138 +/-    0.0052
Ecliptic XDOT         0.00276623 +/-    0.0001
Ecliptic YDOT         0.00071898 +/-    0.0005
Ecliptic ZDOT        -0.00024927 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.67317329 +/-    0.1088
Geocenter to KBO     40.16391162 +/-    0.1107
# Hcoef: 10.75

The following table shows the complete astrometric record for VNH0003. 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 (VNH0003) followed by the observatory code and reference code for the source of the astrometry.

2011 04  28.26809  18 32 45.355  -20 31 07.56        VNH0003   304              
2011 04  28.36806  18 32 45.149  -20 31 07.48        VNH0003   304              
2011 04  30.39635  18 32 40.899  -20 31 06.02        VNH0003   304              
2011 05  06.36821  18 32 26.230  -20 31 04.28        VNH0003   304              
2011 05  29.48014  18 31 02.931  -20 31 32.86  24.8R VNH0003   568              
2011 05  29.56900  18 31 02.555  -20 31 33.15  25.4R VNH0003   568              
2011 05  30.48978  18 30 58.504  -20 31 35.78  26.7R VNH0003   568              
2011 05  30.52326  18 30 58.358  -20 31 35.78  25.4R VNH0003   568              
2011 05  31.48809  18 30 54.083  -20 31 38.05  27.4R VNH0003   568              
2011 05  31.52731  18 30 53.909  -20 31 38.24  26.0R VNH0003   568              
2011 05  31.56672  18 30 53.745  -20 31 38.15  27.2R VNH0003   568              
2011 06  01.53320  18 30 49.383  -20 31 40.80  25.8R VNH0003   568              
2011 06  01.59657  18 30 49.096  -20 31 41.10  26.5R VNH0003   568              
2011 06  04.29531  18 30 36.706  -20 31 48.72  27.3R VNH0003   304              
2011 06  04.39267  18 30 36.236  -20 31 48.84  26.3R VNH0003   304              
2011 07  02.03942  18 28 16.776  -20 33 40.93        VNH0003   304              
2011 07  02.14714  18 28 16.205  -20 33 41.39        VNH0003   304              
2011 07  02.25740  18 28 15.625  -20 33 41.88        VNH0003   304              
2011 07  02.28855  18 28 15.483  -20 33 42.22  27.4R VNH0003   568              
2011 07  02.35040  18 28 15.155  -20 33 42.69  27.4R VNH0003   568              
2011 07  02.41279  18 28 14.824  -20 33 42.79  26.9R VNH0003   568              
2011 07  02.53920  18 28 14.169  -20 33 43.54  26.9R VNH0003   568              

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    -0.00
     2   0.0003     -2.88    -0.03       0.24     0.00
     3   0.0058    -62.41    -0.02       5.08    -0.00
     4   0.0222   -268.06     0.19      18.45     0.00
     5   0.0855  -1438.07    -0.34      54.48     0.25
     6   0.0857  -1443.36    -0.06      54.48     0.15
     7   0.0882  -1500.33    -0.24      54.93    -0.20
     8   0.0883  -1502.38    -0.17      55.04    -0.12
     9   0.0910  -1562.47     0.01      56.01     0.06
    10   0.0911  -1564.92     0.08      55.95    -0.03
    11   0.0912  -1567.22     0.31      56.16     0.14
    12   0.0938  -1628.55     0.09      56.82     0.07
    13   0.0940  -1632.59     0.15      56.73    -0.07
    14   0.1014  -1806.81     0.11      58.45    -0.23
    15   0.1016  -1813.41    -0.01      58.69    -0.08
    16   0.1773  -3775.80    -0.04      47.94    -0.09
    17   0.1776  -3783.83    -0.08      47.88     0.02
    18   0.1779  -3791.99    -0.03      47.80     0.07
    19   0.1780  -3794.00     0.01      47.56     0.04
    20   0.1782  -3798.63    -0.02      47.32    -0.10
    21   0.1784  -3803.28    -0.02      47.45     0.13
    22   0.1787  -3812.51     0.16      47.16    -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.

VNH0003    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