Orbit Fit and Astrometric record for VNH0059

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: VNH0059   
# Created Sun Dec 17 02:38:21 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   19
# Arc:  87.87d
# First observation: 2013/06/08
#  Last observation: 2013/09/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000006   0.044865  -0.000011  -0.005234   0.028472   0.000000
# Chi-squared of fit:     1.21 DOF:   32 RMS:  0.04
# Min/Max residuals:    -0.16    0.10
# Exact a, adot, b, bdot, g, gdot:
  1.966501E-05  3.218428E-02 -3.354602E-06 -5.499237E-03  2.636606E-02  5.747106E-03
# Covariance matrix:
  2.3570E-13 -3.5862E-12  5.9596E-15 -2.7068E-13  2.8649E-13  1.6354E-10
 -3.5862E-12  4.4024E-08 -3.7652E-11  1.0776E-09  6.7592E-09 -3.1205E-07
  5.9596E-15 -3.7652E-11  1.7615E-13 -1.7176E-12 -5.7542E-12  2.7253E-10
 -2.7068E-13  1.0776E-09 -1.7176E-12  3.6221E-11  1.6391E-10 -7.9568E-09
  2.8649E-13  6.7592E-09 -5.7542E-12  1.6391E-10  1.0436E-09 -4.6798E-08
  1.6354E-10 -3.1205E-07  2.7253E-10 -7.9568E-09 -4.6798E-08  2.4375E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.278743  -80.292766    0.386597    0.037465   -0.940574  2456451.680618
# Heliocentric elements and errors
Epoch:              2456450.5000  =  2013/06/07
Mean Anomaly:            6.10533 +/-     1.521
Argument of Peri:      140.75080 +/-     6.938
Long of Asc Node:      111.97473 +/-     0.083
Inclination:             9.91345 +/-     0.063
Eccentricity:         0.56773924 +/-    0.0215
Semi-Major Axis:     86.56508636 +/-    2.6000
Time of Perihelion: 2451461.4367 +/-    1222.6
Perihelion:          37.41869010 +/-    2.1765
Aphelion:           135.71148262 +/-    4.4821
Period (y)              805.4199 +/-     36.29
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            6.16873977 +/-    0.0078
Ecliptic Y          -38.34531395 +/-    0.0458
Ecliptic Z            1.50794023 +/-    0.0019
Ecliptic XDOT         0.00339223 +/-    0.0000
Ecliptic YDOT        -0.00004694 +/-    0.0002
Ecliptic ZDOT        -0.00054672 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.86760008 +/-    0.0452
Geocenter to KBO     37.92754961 +/-    0.0465
# Hcoef: 12.43

The following table shows the complete astrometric record for VNH0059. 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 (VNH0059) followed by the observatory code and reference code for the source of the astrometry.

2013 06  08.17984  18 41 32.100  -20 48 40.77  27.8R VNH0059   304              
2013 06  08.22941  18 41 31.861  -20 48 41.08  28.1R VNH0059   304              
2013 06  08.26998  18 41 31.675  -20 48 41.37  27.4R VNH0059   304              
2013 06  11.21626  18 41 17.491  -20 49 00.89  28.0R VNH0059   304              
2013 06  11.27934  18 41 17.178  -20 49 01.31  27.9R VNH0059   304              
2013 06  11.34902  18 41 16.832  -20 49 01.78  28.4R VNH0059   304              
2013 06  13.21699  18 41 07.669  -20 49 14.62  28.1R VNH0059   304              
2013 06  13.27759  18 41 07.364  -20 49 15.08  27.9R VNH0059   304              
2013 07  02.16685  18 39 30.036  -20 51 39.09  27.4R VNH0059   304              
2013 07  02.22574  18 39 29.717  -20 51 39.55  27.3R VNH0059   304              
2013 07  02.27185  18 39 29.474  -20 51 39.89  27.2R VNH0059   304              
2013 07  04.15763  18 39 19.593  -20 51 55.43  26.7R VNH0059   304              
2013 07  04.19618  18 39 19.386  -20 51 55.75  27.2R VNH0059   304              
2013 07  04.22278  18 39 19.242  -20 51 56.05  27.5R VNH0059   304              
2013 08  28.07314  18 35 32.124  -20 59 46.22  28.6R VNH0059   304              
2013 08  30.06767  18 35 27.865  -21 00 01.76  28.0R VNH0059   304              
2013 09  01.05405  18 35 24.009  -21 00 17.05  29.0R VNH0059   304              
2013 09  03.04605  18 35 20.532  -21 00 32.30  29.4R VNH0059   304              
2013 09  04.05023  18 35 18.932  -21 00 39.89  29.8R VNH0059   304              

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    -0.07       0.00     0.01
  2   0.0001     -3.36    -0.06      -0.07     0.03
  3   0.0002     -5.99     0.08      -0.17    -0.01
  4   0.0083   -205.75     0.01      -5.41     0.01
  5   0.0085   -210.16     0.02      -5.52     0.01
  6   0.0087   -215.03     0.01      -5.64     0.00
  7   0.0138   -344.09     0.02      -9.29    -0.03
  8   0.0140   -348.39     0.02      -9.45    -0.07
  9   0.0657  -1719.55     0.02     -57.79    -0.04
 10   0.0658  -1724.05    -0.04     -57.94    -0.01
 11   0.0660  -1727.47     0.00     -58.05     0.01
 12   0.0711  -1866.71     0.02     -64.07     0.06
 13   0.0712  -1869.63     0.00     -64.19     0.06
 14   0.0713  -1871.66    -0.03     -64.35    -0.02
 15   0.2215  -5078.53     0.04    -325.54    -0.16
 16   0.2269  -5139.07    -0.02    -337.34    -0.01
 17   0.2324  -5193.95    -0.02    -349.24     0.10
 18   0.2378  -5243.52    -0.02    -361.44     0.04
 19   0.2406  -5266.37     0.02    -367.63     0.01

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.

VNH0059    quality flag:1

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        86.340   101.315    81.890
ecceobj         0.567     0.656     0.530
incobj          9.903    10.084     9.838
qmin           36.524    33.887    37.599
qmax          143.911   177.839   131.853
amean          88.058   103.068    82.925
amin           86.095   101.098    81.423
amax           90.654   106.351    85.163
emean           0.574     0.662     0.535
emin            0.560     0.653     0.524
emax            0.588     0.672     0.548
imean           8.194     8.268     8.118
imin            7.506     8.066     7.662
imax            9.083     8.567     8.552
excite_mean     0.591     0.677     0.553
fracstop        1.000     1.000     1.000
cjmean          3.114     3.037     3.139

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       199.0     167.8     183.4
kozaiamp        179.9      45.4     180.0