Orbit Fit and Astrometric record for 00KL4

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: 00KL4     
# Created Sat Dec 16 02:37:05 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   21
# Arc:  17.10y
# First observation: 2000/05/28
#  Last observation: 2017/07/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000989   0.026381  -0.000347  -0.000572   0.022849   0.000000
# Chi-squared of fit:    45.21 DOF:   34 RMS:  0.27
# Min/Max residuals:    -0.57    0.60
# Exact a, adot, b, bdot, g, gdot:
  1.413865E-05  2.465338E-02 -2.570301E-06 -5.747814E-04  2.545313E-02 -1.178083E-03
# Covariance matrix:
  1.2046E-13 -3.0745E-14 -5.1645E-15  7.5055E-16 -3.0064E-14 -5.2201E-14
 -3.0745E-14  5.6572E-14 -6.6918E-15 -1.3132E-15 -4.4611E-14  1.3275E-13
 -5.1645E-15 -6.6918E-15  1.0271E-13 -7.4065E-15  3.4978E-14 -1.9184E-14
  7.5055E-16 -1.3132E-15 -7.4065E-15  2.2923E-15  3.9070E-16 -3.1436E-15
 -3.0064E-14 -4.4611E-14  3.4978E-14  3.9070E-16  2.1716E-13 -1.2635E-13
 -5.2201E-14  1.3275E-13 -1.9184E-14 -3.1436E-15 -1.2635E-13  3.2611E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   21.797574 -118.279963   -0.093819    0.376731   -0.942620  2451692.777523
# Heliocentric elements and errors
Epoch:              2451690.5000  =  2000/05/26
Mean Anomaly:          226.60676 +/-     0.037
Argument of Peri:      232.18148 +/-     0.029
Long of Asc Node:      148.01788 +/-     0.000
Inclination:            21.30769 +/-     0.000
Eccentricity:         0.06618940 +/-    0.0001
Semi-Major Axis:     38.39770367 +/-    0.0029
Time of Perihelion: 2483892.8539 +/-       8.1
Perihelion:          35.85618289 +/-    0.0034
Aphelion:            40.93922444 +/-    0.0037
Period (y)              237.9392 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -17.67457361 +/-    0.0003
Ecliptic Y          -33.05976662 +/-    0.0006
Ecliptic Z           14.58866179 +/-    0.0003
Ecliptic XDOT         0.00237351 +/-    0.0000
Ecliptic YDOT        -0.00116677 +/-    0.0000
Ecliptic ZDOT        -0.00010432 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.22645615 +/-    0.0005
Geocenter to KBO     39.28790260 +/-    0.0007
# Hcoef:  7.57

The following table shows the complete astrometric record for 00KL4. 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 (00KL4) followed by the observatory code and reference code for the source of the astrometry.

2000 05  28.27678  16 15 35.71   +00 53 03.5   23.3R 00KL4     695  Cb5931      
2000 05  28.33640  16 15 35.40   +00 53 04.5   23.2R 00KL4     695  Cb5931      
2000 05  28.39559  16 15 35.08   +00 53 04.6         00KL4     695  Cb5931      
2000 05  29.20730  16 15 31.10   +00 53 13.6         00KL4     695  Cb5931      
2000 05  29.24983  16 15 30.88   +00 53 13.7   23.3R 00KL4     695  Cb5931      
2000 05  29.28371  16 15 30.71   +00 53 14.5   23.4R 00KL4     695  Cb5931      
2000 06  24.98579  16 13 25.88   +00 54 16.9         00KL4     950  Cb7067      
2000 06  25.01903  16 13 25.73   +00 54 16.3         00KL4     950  Cb7067      
2000 08  02.01813  16 11 32.59   +00 43 42.0         00KL4     809  Cb7682      
2000 08  02.04447  16 11 32.57   +00 43 41.3         00KL4     809  Cb7682      
2001 02  23.33056  16 25 17.58   -00 07 17.4   24.0R 00KL4     309  Cc6647      
2001 02  23.38140  16 25 17.64   -00 07 16.0   24.0R 00KL4     309  Cc6647      
2001 02  24.39380  16 25 18.90   -00 06 46.6   23.5R 00KL4     309  Cc6647      
2001 03  21.47435  16 25 17.25   +00 06 24.7         00KL4     695  Cc7847      
2001 03  22.48070  16 25 15.88   +00 06 57.6         00KL4     695  Cc7847      
2002 02  11.36375  16 30 16.51   -00 30 15.8   22.6R 00KL4     304  Ce8775      
2002 02  11.39075  16 30 16.58   -00 30 15.2         00KL4     304  Ce8775      
2008 05  03.40891  17 02 06.44   -01 38 24.2         00KL4     695  Cz0376      
2008 05  04.39506  17 02 02.45   -01 38 02.4         00KL4     695  Cz0376      
2017 07  04.32620  17 48 35.79   -04 10 50.7   22.6R 00KL4     G37  C~2IX3      
2017 07  04.38136  17 48 35.46   -04 10 50.7         00KL4     G37  C~2IX3      

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     0.24       0.00     0.46
  2   0.0002     -4.75 (   0.02)      0.11 (   0.77)
  3   0.0003     -9.49    -0.21      -0.70     0.16
  4   0.0025    -69.81     0.01      -3.11     0.52
  5   0.0027    -73.07    -0.03      -3.64     0.16
  6   0.0028    -75.72    -0.11      -3.33     0.60
  7   0.0759  -1926.23     0.14    -294.80    -0.15
  8   0.0760  -1928.32     0.11    -295.81    -0.57
  9   0.1800  -3475.78    -0.12   -1238.41    -0.08
 10   0.1801  -3475.94     0.20   -1239.15    -0.02
 11   0.7421   9260.65    -0.14   -1910.44     0.00
 12   0.7422   9261.27    -0.16   -1908.90    -0.07
 13   0.7450   9274.30    -0.18   -1876.43    -0.06
 14   0.8137   9100.13     0.03   -1103.20     0.12
 15   0.8164   9073.68    -0.11   -1074.74    -0.08
 16   1.7087  13939.45     0.19   -2420.06    -0.37
 17   1.7087  13940.37     0.20   -2419.27    -0.42
 18   7.9319  43445.65    -0.02   -1047.55    -0.29
 19   7.9346  43380.01    -0.04   -1037.07    -0.28
 20  17.1008  90846.44     0.55   -2540.67    -0.03
 21  17.1009  90840.64    -0.53   -2541.61     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.

00KL4    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.414    38.422    38.405
ecceobj         0.066     0.066     0.066
incobj         21.307    21.307    21.307
qmin           35.394    35.361    35.153
qmax           42.213    42.263    42.422
amean          38.654    38.653    38.656
amin           38.355    38.340    38.344
amax           38.996    38.974    38.988
emean           0.068     0.066     0.070
emin            0.055     0.052     0.053
emax            0.084     0.085     0.089
imean          20.409    20.407    20.427
imin           19.485    19.473    19.468
imax           21.789    21.785    21.809
excite_mean     0.355     0.355     0.356
fracstop        1.000     1.000     1.000
cjmean          2.900     2.900     2.899

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       178.9     182.7     180.2
kozaiamp        180.0     180.0     179.9