Orbit Fit and Astrometric record for 00FG8

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: 00FG8     
# Created Sun Oct 22 01:37:06 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   16
# Arc:  14.98y
# First observation: 2000/03/29
#  Last observation: 2015/03/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.001340   0.023153  -0.000014   0.000414   0.025049   0.000000
# Chi-squared of fit:    11.10 DOF:   26 RMS:  0.15
# Min/Max residuals:    -0.34    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.545168E-05  2.184696E-02 -4.253325E-07  3.904855E-04  2.319415E-02 -1.528789E-03
# Covariance matrix:
  2.3235E-13 -8.8863E-14  5.4503E-16 -1.3152E-15 -1.9073E-13 -2.1307E-13
 -8.8863E-14  1.1546E-13 -1.0132E-15  2.0099E-15  7.8200E-14  3.2745E-13
  5.4503E-16 -1.0132E-15  1.4518E-13 -1.0868E-14 -7.7593E-17 -2.9808E-15
 -1.3152E-15  2.0099E-15 -1.0868E-14  2.0893E-15  1.1105E-15  5.8277E-15
 -1.9073E-13  7.8200E-14 -7.7593E-17  1.1105E-15  6.1353E-13  1.7602E-13
 -2.1307E-13  3.2745E-13 -2.9808E-15  5.8277E-15  1.7602E-13  9.4988E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.511603 -174.346992   -0.060917    0.008755   -1.003815  2451632.888143
# Heliocentric elements and errors
Epoch:              2451630.5000  =  2000/03/27
Mean Anomaly:          265.79339 +/-     0.097
Argument of Peri:      127.77685 +/-     0.080
Long of Asc Node:      159.76861 +/-     0.003
Inclination:             1.14214 +/-     0.000
Eccentricity:         0.06722297 +/-    0.0000
Semi-Major Axis:     43.70174509 +/-    0.0055
Time of Perihelion: 2479244.2551 +/-      27.9
Perihelion:          40.76398391 +/-    0.0055
Aphelion:            46.63950626 +/-    0.0062
Period (y)              288.9059 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -43.88920206 +/-    0.0014
Ecliptic Y           -4.40349635 +/-    0.0002
Ecliptic Z            0.38496259 +/-    0.0000
Ecliptic XDOT         0.00042788 +/-    0.0000
Ecliptic YDOT        -0.00254173 +/-    0.0000
Ecliptic ZDOT         0.00004460 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.11123478 +/-    0.0014
Geocenter to KBO     43.11431703 +/-    0.0015
# Hcoef:  7.73

The following table shows the complete astrometric record for 00FG8. 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 (00FG8) followed by the observatory code and reference code for the source of the astrometry.

2000 03  29.38740  12 21 34.07   -01 46 32.9   23.7R 00FG8     568  Cb2555      
2000 03  29.42985  12 21 33.89   -01 46 31.8   23.7R 00FG8     568  Cb2555      
2000 03  29.47449  12 21 33.70   -01 46 30.5   23.7R 00FG8     568  Cb2555      
2000 03  30.36737  12 21 29.87   -01 46 05.9         00FG8     568  Cb2555      
2000 03  30.41666  12 21 29.67   -01 46 04.3         00FG8     568  Cb2555      
2000 03  30.43149  12 21 29.61   -01 46 04.1   23.9R 00FG8     568  Cb2555      
2001 02  23.29740  12 28 30.58   -02 30 09.2   24.0R 00FG8     309  Cc6643      
2001 02  23.34072  12 28 30.42   -02 30 08.2   23.7R 00FG8     309  Cc6643      
2001 02  24.28361  12 28 27.14   -02 29 46.5   23.9R 00FG8     309  Cc6643      
2002 02  11.23883  12 33 46.82   -03 02 44.8         00FG8     304  Ce8748      
2002 02  11.30649  12 33 46.64   -03 02 43.5   24.1R 00FG8     304  Ce8748      
2013 05  14.21516  13 20 16.14   -07 36 58.8   23.8R 00FG8     G37  C~0snV      
2013 05  14.28094  13 20 15.88   -07 36 57.7         00FG8     G37  C~0snV      
2015 03  23.35880  13 33 48.71   -08 54 34.6   23.5R 00FG8     695  C~1Q39      
2015 03  23.42211  13 33 48.46   -08 54 32.9         00FG8     695  C~1Q39      
2015 03  23.48471  13 33 48.18   -08 54 31.8         00FG8     695  C~1Q39      

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    -0.12       0.00     0.14
  2   0.0001     -2.91    -0.01      -0.06     0.10
  3   0.0002     -6.04     0.04       0.01     0.17
  4   0.0027    -68.51    -0.04      -0.15    -0.19
  5   0.0028    -71.90     0.07       0.14     0.11
  6   0.0029    -72.81     0.22      -0.04    -0.06
  7   0.9060   6771.39    -0.17      66.57    -0.08
  8   0.9061   6768.79    -0.26      66.54    -0.12
  9   0.9087   6715.01    -0.05      67.06    -0.20
 10   1.8723  11907.40     0.14     138.86    -0.01
 11   1.8725  11904.40     0.19     138.99     0.10
 12  13.1248  58134.44     0.04    1090.01     0.30
 13  13.1250  58130.12    -0.09    1089.56    -0.09
 14  14.9814  72359.57     0.02    1285.81    -0.02
 15  14.9816  72355.00     0.10    1286.03     0.20
 16  14.9818  72350.21    -0.10    1285.49    -0.34

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.

00FG8    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.684    43.701    43.667
ecceobj         0.068     0.068     0.068
incobj          1.142     1.142     1.142
qmin           40.352    40.348    40.319
qmax           47.828    47.839    47.790
amean          43.979    43.995    43.963
amin           43.635    43.655    43.622
amax           44.343    44.367    44.334
emean           0.063     0.063     0.063
emin            0.047     0.047     0.047
emax            0.079     0.079     0.079
imean           1.984     1.978     1.990
imin            1.256     1.256     1.256
imax            2.663     2.655     2.673
excite_mean     0.073     0.072     0.073
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     3.095

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       167.8     167.8     168.0
kozaiamp        180.0     180.0     180.0