Orbit Fit and Astrometric record for 182397

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: 182397    
# Created Sun Oct 26 01:36:53 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   23 observations of   23
# Arc:   7.20y
# First observation: 2000/08/26
#  Last observation: 2007/11/09
# Chi-squared of fit:    56.39 DOF:   40 RMS:  0.28
# Min/Max residuals:    -0.54    0.52
# Exact a, adot, b, bdot, g, gdot:
  1.258774E-05  2.019982E-02 -4.312901E-06 -6.168993E-03  2.216283E-02  4.478882E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.224011  -35.253134   -0.140632   -0.021483   -0.997461  2451782.576323
# Heliocentric elements and errors
Epoch:              2451782.5000  =  2000/08/26
Mean Anomaly:           50.67576 +/-     0.000
Argument of Peri:      109.02381 +/-     0.000
Long of Asc Node:      141.01838 +/-     0.000
Inclination:            17.03616 +/-     0.000
Eccentricity:         0.23215688 +/-    0.0000
Semi-Major Axis:     51.66395469 +/-    0.0000
Time of Perihelion: 2432689.3482 +/-       0.0
Perihelion:          39.66981238 +/-    0.0000
Aphelion:            63.65809701 +/-    0.0000
Period (y)              371.3553 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.73936567 +/-    0.0000
Ecliptic Y          -26.49343681 +/-    0.0000
Ecliptic Z           -0.96403865 +/-    0.0000
Ecliptic XDOT         0.00187143 +/-    0.0000
Ecliptic YDOT         0.00173316 +/-    0.0000
Ecliptic ZDOT        -0.00077357 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.12025647 +/-    0.0000
Geocenter to KBO     45.12049392 +/-    0.0000
# Hcoef:  6.05

The following table shows the complete astrometric record for 182397. 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 (182397) followed by the observatory code and reference code for the source of the astrometry.

2000 08  26.07558  21 49 50.13   -14 25 35.7   22.1R 182397    807  Cg3217      
2000 08  26.15798  21 49 49.76   -14 25 38.0         182397    807  Cg3217      
2001 08  20.13349  21 55 13.96   -14 19 29.8   21.4R 182397    807  Cd7926      
2001 08  20.21344  21 55 13.62   -14 19 32.0         182397    807  Cd7926      
2001 08  21.14872  21 55 09.70   -14 19 56.0         182397    807  Cd7926      
2001 08  21.22234  21 55 09.37   -14 19 57.7         182397    807  Cd7926      
2001 09  12.24807  21 53 40.31   -14 28 53.8   22.4R 182397    695  Cd7926      
2001 09  12.29536  21 53 40.16   -14 28 54.8         182397    695  Cd7926      
2002 08  09.18146  22 00 54.97   -14 10 49.9   22.0R 182397    807  Cg3217      
2002 08  10.26262  22 00 50.59   -14 11 17.9         182397    807  Cg3217      
2002 08  10.36770  22 00 50.12   -14 11 20.8         182397    807  Cg3217      
2006 07  28.30598  22 20 47.31   -13 47 04.1   22.8R 182397    250  S~06I2      
2006 07  28.31038  22 20 47.29   -13 47 04.2         182397    250  S~06I2      
2006 07  28.31478  22 20 47.27   -13 47 04.3         182397    250  S~06I2      
2006 07  28.36960  22 20 47.08   -13 47 05.7         182397    250  S~06I2      
2007 07  11.35120  22 26 18.89   -13 34 50.5         182397    304  Cv1972      
2007 07  11.39760  22 26 18.75   -13 34 51.5         182397    304  Cv1972      
2007 09  17.23646  22 22 10.11   -14 03 23.1         182397    675  Cy6680      
2007 09  17.24194  22 22 10.10   -14 03 23.2   23.5R 182397    675  Cy6680      
2007 09  17.28484  22 22 09.92   -14 03 23.9         182397    675  Cy6680      
2007 09  17.28967  22 22 09.91   -14 03 24.1         182397    675  Cy6680      
2007 11  08.13018  22 20 03.83   -14 15 01.9         182397    695  Cy3972      
2007 11  09.15319  22 20 03.20   -14 15 03.9         182397    695  Cy3972      

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    -0.03       0.00    -0.07
  2   0.0002      0.00     0.11       0.00    -0.11
  3   0.9830      0.00    -0.04       0.00    -0.02
  4   0.9833      0.00    -0.02       0.00    -0.17
  5   0.9858      0.00    -0.02       0.00    -0.18
  6   0.9860      0.00    -0.25       0.00     0.01
  7   1.0463      0.00    -0.15       0.00     0.16
  8   1.0465      0.00     0.33       0.00     0.22
  9   1.9524      0.00    -0.20       0.00    -0.07
 10   1.9553      0.00     0.33       0.00    -0.03
 11   1.9556      0.00    -0.19       0.00    -0.22
 12   5.9199      0.00     0.49       0.00     0.50
 13   5.9199      0.00     0.42       0.00     0.51
 14   5.9199      0.00     0.35       0.00     0.52
 15   5.9200      0.00     0.37       0.00     0.51
 16   6.8728      0.00    -0.26       0.00    -0.08
 17   6.8729      0.00    -0.54       0.00    -0.09
 18   7.0586      0.00    -0.08       0.00    -0.29
 19   7.0586      0.00     0.08       0.00    -0.26
 20   7.0588      0.00    -0.16       0.00     0.01
 21   7.0588      0.00    -0.03       0.00    -0.08
 22   7.2007      0.00     0.19       0.00    -0.48
 23   7.2035      0.00     0.35       0.00    -0.46

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.

182397    quality flag:3

Type:       9:4EEEEE  9:4EEEEE  9:4EEEEE

axisobj        51.795    51.796    51.795
ecceobj         0.233     0.233     0.233
incobj         17.019    17.019    17.019
qmin           37.611    37.605    37.616
qmax           66.457    66.467    66.454
amean          51.700    51.700    51.700
amin           51.194    51.188    51.195
amax           52.305    52.309    52.295
emean           0.248     0.248     0.248
emin            0.224     0.224     0.224
emax            0.271     0.271     0.271
imean          15.056    15.054    15.055
imin           14.253    14.260    14.246
imax           16.098    16.106    16.098
excite_mean     0.360     0.360     0.360
fracstop        1.000     1.000     1.000
cjmean          3.033     3.033     3.033

libcent 0       180.0     180.2     181.6
libamp  0        92.0      89.4      91.7
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       169.6     169.7     169.6
kozaiamp        180.0     180.0     179.9