Orbit Fit and Astrometric record for 94TG

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: 94TG      
# Created Sat Dec 16 02:36:56 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    8 observations of    8
# Arc:   3.02d
# First observation: 1994/10/03
#  Last observation: 1994/10/06
# Chi-squared of fit:    29.49 DOF:   10 RMS:  0.34
# Min/Max residuals:    -1.13    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.353550E-05  2.470822E-02  1.701164E-06  2.738520E-03  2.446468E-02 -1.891508E-03
# Covariance matrix:
  3.1494E-11  4.7783E-08 -7.6894E-14 -4.6520E-11  7.6282E-09  0.0000E+00
  4.7783E-08  7.3100E-05 -1.1755E-10 -7.1120E-08  1.1662E-05  0.0000E+00
 -7.6894E-14 -1.1755E-10  2.2195E-13 -2.3931E-11 -1.8756E-11  0.0000E+00
 -4.6520E-11 -7.1120E-08 -2.3931E-11  1.5236E-08 -1.1348E-08  0.0000E+00
  7.6282E-09  1.1662E-05 -1.8756E-11 -1.1348E-08  1.8608E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  1.8910E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.836090    8.575588   -0.032843   -0.014613   -1.000870  2449628.920308
# Heliocentric elements and errors
Epoch:              2449628.5000  =  1994/10/03
Mean Anomaly:          327.73800 +/-   356.630
Argument of Peri:       33.48106 +/-    62.952
Long of Asc Node:       15.92453 +/-     2.542
Inclination:             6.38442 +/-     2.372
Eccentricity:         0.12264483 +/-    0.5606
Semi-Major Axis:     46.45976799 +/-   22.6882
Time of Perihelion: 2459994.2983 +/-  138129.2
Perihelion:          40.76171780 +/-   32.7815
Aphelion:            52.15781819 +/-   36.4301
Period (y)              316.6823 +/-    231.97
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.39916669 +/-    2.2818
Ecliptic Y            6.26951106 +/-    0.3439
Ecliptic Z           -0.59636667 +/-    0.0337
Ecliptic XDOT        -0.00061086 +/-    0.0015
Ecliptic YDOT         0.00270091 +/-    0.0008
Ecliptic ZDOT         0.00030937 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.87549934 +/-    2.2564
Geocenter to KBO     40.87535161 +/-    2.3078
# Hcoef:  7.21

The following table shows the complete astrometric record for 94TG. 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 (94TG) followed by the observatory code and reference code for the source of the astrometry.

1994 10  03.4196   00 32 49.68   +02 37 55.0   23. R 94TG      568  A24037      
1994 10  03.4445   00 32 49.52   +02 37 54.2         94TG      568  A24037      
1994 10  03.4744   00 32 49.40   +02 37 53.0         94TG      568  A24037      
1994 10  03.5453   00 32 49.05   +02 37 51.5         94TG      568  A24037      
1994 10  03.5565   00 32 49.01   +02 37 50.8         94TG      568  A24037      
1994 10  03.5785   00 32 48.94   +02 37 50.6         94TG      568  A24037      
1994 10  06.4328   00 32 36.10   +02 36 33.1         94TG      568  A24037      
1994 10  06.4391   00 32 36.04   +02 36 32.9         94TG      568  A24037      

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    -0.19       0.00    -1.13
  2   0.0001      0.00    -0.18       0.00     0.11
  3   0.0002      0.00     0.08       0.00    -0.28
  4   0.0003      0.00    -0.30       0.00     0.15
  5   0.0004      0.00    -0.14       0.00    -0.25
  6   0.0004      0.00     0.32       0.00     0.15
  7   0.0082      0.00     0.29       0.00     0.04
  8   0.0083      0.00    -0.18       0.00     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.

94TG    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.999    46.999    46.999
ecceobj         0.133     0.133     0.133
incobj          6.361     6.361     6.361
qmin           39.889    39.932    39.893
qmax           53.585    53.602    53.636
amean          46.598    46.594    46.601
amin           46.185    46.200    46.198
amax           47.049    47.049    47.048
emean           0.127     0.127     0.128
emin            0.114     0.115     0.115
emax            0.140     0.140     0.141
imean           6.230     6.232     6.234
imin            5.816     5.815     5.816
imax            6.648     6.645     6.655
excite_mean     0.167     0.167     0.168
fracstop        1.000     1.000     1.000
cjmean          3.099     3.099     3.099

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       182.9     183.0     183.0
kozaiamp        180.0     180.0     179.9