Orbit Fit and Astrometric record for 134568

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: 134568    
# Created Mon Oct 23 01:36:33 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   23 observations of   23
# Arc:   6.89y
# First observation: 1999/09/07
#  Last observation: 2006/07/28
# Chi-squared of fit:    50.50 DOF:   40 RMS:  0.26
# Min/Max residuals:    -0.63    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.869245E-05  3.048547E-02  1.859678E-06  2.439229E-03  2.766065E-02  3.569744E-04
# 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
    9.391197  -20.000433   -0.072411    0.162676   -0.985002  2451428.927993
# Heliocentric elements and errors
Epoch:              2451428.5000  =  1999/09/07
Mean Anomaly:            3.44151 +/-     0.000
Argument of Peri:       58.88150 +/-     0.000
Long of Asc Node:      276.83544 +/-     0.000
Inclination:            10.20863 +/-     0.000
Eccentricity:         0.15565947 +/-    0.0000
Semi-Major Axis:     43.97161936 +/-    0.0000
Time of Perihelion: 2450410.3682 +/-       0.0
Perihelion:          37.12702020 +/-    0.0000
Aphelion:            50.81621851 +/-    0.0000
Period (y)              291.5862 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.48757773 +/-    0.0000
Ecliptic Y          -12.47029053 +/-    0.0000
Ecliptic Z            5.89923293 +/-    0.0000
Ecliptic XDOT         0.00102370 +/-    0.0000
Ecliptic YDOT         0.00284534 +/-    0.0000
Ecliptic ZDOT         0.00024403 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.14433453 +/-    0.0000
Geocenter to KBO     36.15247064 +/-    0.0000
# Hcoef:  8.02

The following table shows the complete astrometric record for 134568. 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 (134568) followed by the observatory code and reference code for the source of the astrometry.

1999 09  07.42725  22 32 00.84   +00 53 13.6   23.8R 134568    568  Ca8547      
1999 09  07.46097  22 32 00.68   +00 53 12.6   23.4R 134568    568  Ca8547      
1999 09  07.49388  22 32 00.51   +00 53 11.6   22.9R 134568    568  Ca8547      
1999 09  10.37411  22 31 46.41   +00 51 45.0   22.9R 134568    568  Ca8547      
1999 09  10.38572  22 31 46.35   +00 51 44.4   23.1R 134568    568  Ca8547      
1999 10  09.33911  22 29 40.91   +00 36 43.0   23.5R 134568    568  Ca8547      
1999 10  09.40677  22 29 40.68   +00 36 40.8   23.7R 134568    568  Ca8547      
1999 11  11.28295  22 28 28.61   +00 22 53.5   23.8R 134568    568  Ca8547      
1999 11  11.33064  22 28 28.59   +00 22 52.4   24.0R 134568    568  Ca8547      
1999 11  12.27546  22 28 28.02   +00 22 35.8   23.5R 134568    568  Ca8547      
2000 08  27.16593  22 39 09.97   +01 45 15.8   23.0R 134568    807  Cc0856      
2000 08  27.24044  22 39 09.59   +01 45 13.3         134568    807  Cc0856      
2000 08  28.43455  22 39 03.68   +01 44 40.5   23.5R 134568    568  Cc0856      
2000 08  28.46039  22 39 03.54   +01 44 39.8   23.5R 134568    568  Cc0856      
2005 08  08.14327  23 11 53.67   +05 43 20.1   22.5R 134568    807  Co3301      
2005 08  08.27050  23 11 53.12   +05 43 18.3         134568    807  Co3301      
2005 08  09.14796  23 11 49.53   +05 43 04.6         134568    807  Co3301      
2006 06  21.33832  23 19 51.58   +06 26 55.9   24.2R 134568    304  Cr4804      
2006 06  21.38138  23 19 51.57   +06 26 56.6         134568    304  Cr4804      
2006 07  28.10439  23 18 48.44   +06 30 25.1   23.2R 134568    250  S~06HI      
2006 07  28.10879  23 18 48.42   +06 30 25.1         134568    250  S~06HI      
2006 07  28.12222  23 18 48.38   +06 30 25.0         134568    250  S~06HI      
2006 07  28.12662  23 18 48.36   +06 30 25.0         134568    250  S~06HI      

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    -0.14       0.00    -0.28
  2   0.0001      0.00    -0.01       0.00    -0.16
  3   0.0002      0.00    -0.08       0.00    -0.17
  4   0.0081      0.00     0.22       0.00     0.09
  5   0.0081      0.00     0.19       0.00    -0.16
  6   0.0874      0.00    -0.13       0.00     0.30
  7   0.0876      0.00     0.12       0.00     0.15
  8   0.1776      0.00    -0.32       0.00     0.18
  9   0.1777      0.00    -0.09       0.00    -0.04
 10   0.1803      0.00    -0.10       0.00     0.41
 11   0.9712      0.00     0.12       0.00     0.44
 12   0.9714      0.00     0.07       0.00    -0.05
 13   0.9747      0.00     0.48       0.00    -0.21
 14   0.9748      0.00     0.35       0.00    -0.21
 15   5.9185      0.00     0.22       0.00    -0.29
 16   5.9188      0.00    -0.12       0.00    -0.21
 17   5.9212      0.00    -0.20       0.00    -0.63
 18   6.7869      0.00    -0.34       0.00    -0.04
 19   6.7870      0.00    -0.40       0.00    -0.12
 20   6.8875      0.00     0.39       0.00     0.29
 21   6.8876      0.00     0.30       0.00     0.32
 22   6.8876      0.00     0.35       0.00     0.31
 23   6.8876      0.00     0.27       0.00     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.

134568    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        43.920    43.920    43.920
ecceobj         0.155     0.155     0.155
incobj         10.211    10.211    10.211
qmin           36.067    34.355    35.685
qmax           51.796    53.566    52.157
amean          43.726    43.727    43.727
amin           43.334    43.305    43.323
amax           44.165    44.181    44.170
emean           0.111     0.146     0.139
emin            0.065     0.069     0.069
emax            0.173     0.213     0.182
imean          13.588    11.968    12.303
imin           11.469     8.680    10.513
imax           15.063    14.397    14.075
excite_mean     0.262     0.258     0.256
fracstop        1.000     1.000     1.000
cjmean          3.015     3.018     3.019

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       139.8      90.5      89.1
kozaiamp        180.0      48.2      36.6