Orbit Fit and Astrometric record for 131695

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: 131695    
# Created Fri Oct 20 01:36:32 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   29 observations of   30
# Arc:   5.91y
# First observation: 2001/12/09
#  Last observation: 2007/11/08
# Chi-squared of fit:    28.98 DOF:   52 RMS:  0.18
# Min/Max residuals:    -0.49    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.620207E-05  3.143317E-02 -3.572313E-08  2.292112E-03  2.904119E-02  5.957131E-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
    0.846257  106.659276    0.479225    0.012532   -0.853724  2452252.871243
# Heliocentric elements and errors
Epoch:              2452252.5000  =  2001/12/09
Mean Anomaly:            5.44534 +/-     0.000
Argument of Peri:        5.05363 +/-     0.000
Long of Asc Node:       94.70686 +/-     0.000
Inclination:             4.25414 +/-     0.000
Eccentricity:         0.05955893 +/-    0.0000
Semi-Major Axis:     37.51891498 +/-    0.0000
Time of Perihelion: 2450982.8142 +/-       0.0
Perihelion:          35.28432854 +/-    0.0000
Aphelion:            39.75350142 +/-    0.0000
Period (y)              229.8178 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -9.65487291 +/-    0.0000
Ecliptic Y           33.94574510 +/-    0.0000
Ecliptic Z            0.50855888 +/-    0.0000
Ecliptic XDOT        -0.00286275 +/-    0.0000
Ecliptic YDOT        -0.00079882 +/-    0.0000
Ecliptic ZDOT         0.00021710 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.29573009 +/-    0.0000
Geocenter to KBO     34.43386607 +/-    0.0000
# Hcoef:  7.66

The following table shows the complete astrometric record for 131695. 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 (131695) followed by the observatory code and reference code for the source of the astrometry.

2001 12  09.37050  07 12 42.60   +23 14 25.5         131695    568  Ce7056      
2001 12  09.40102  07 12 42.43   +23 14 25.8         131695    568  Ce7056      
2001 12  09.43803  07 12 42.23   +23 14 26.3         131695    568  Ce7056      
2002 01  09.45089  07 09 36.85   +23 20 30.2   22. R 131695    568  Ce7056      
2002 02  03.43977  07 07 08.70   +23 24 52.2   22.2R 131695    568  Cf2430      
2002 02  03.53242  07 07 08.16   +23 24 53.2         131695    568  Cf2430      
2002 03  12.35188  07 04 51.65   +23 28 32.8   23.1R 131695    568  Cf2430      
2002 03  13.33191  07 04 49.99   +23 28 35.2         131695    568  Cf2430      
2002 10  31.50289  07 22 44.97   +23 02 08.9   23.0R 131695    568  Cg5849      
2002 11  01.52823  07 22 43.69   +23 02 14.5   23.0R 131695    568  Cg5849      
2002 11  05.55801  07 22 37.31   +23 02 45.5   22.8R 131695    568  Cl8351      
2002 11  06.55476  07 22 35.52   +23 02 44.8         131695    568  Cl8351      
2003 12  24.45784  07 27 04.85   +23 03 33.1   23.0g 131695    568  Cq9107      
2003 12  24.48048  07 27 04.72   +23 03 33.5   23.1g 131695    568  Cq9107      
2003 12  24.50418  07 27 04.59   +23 03 33.9   23.2g 131695    568  Cq9107      
2003 12  25.49737  07 26 58.72   +23 03 47.7   23.7g 131695    568  Cq9107      
2004 02  19.10635  07 21 37.79   +23 15 16.9   22.8R 131695    695  Cq9107      
2004 02  20.10289  07 21 33.44   +23 15 25.0   23.1R 131695    695  Cq9107      
2004 02  20.16909  07 21 33.15   +23 15 25.7   23.0R 131695    695  Cq9107      
2004 04  17.14188  07 20 25.88   +23 17 03.3         131695    675  Cq9107      
2004 04  17.18593  07 20 26.01   +23 17 03.3         131695    675  Cq9107      
2004 12  13.38789  07 35 51.92   +22 52 01.7   23.0R 131695    290  Cm4049      
2004 12  13.49737  07 35 51.34   +22 52 03.3   22.9R 131695    290  Cm4049      
2004 12  14.43146  07 35 46.47   +22 52 16.5   22.8R 131695    290  Cm4049      
2004 12  14.49398  07 35 46.13   +22 52 17.4   23.0R 131695    290  Cm4049      
2005 01  08.34523  07 33 20.78   +22 58 29.8   23.0r 131695    568  Cq9107      
2005 01  08.38310  07 33 20.55   +22 58 30.5   22.8r 131695    568  Cq9107      
2005 01  08.42087  07 33 20.31   +22 58 31.0   22.8r 131695    568  Cq9107      
2007 11  08.39543  08 00 52.86   +22 09 05.1         131695    695  Cy4463      
2007 11  09.39462  08 00 51.81   +22 09 11.9         131695    695  Cy4463      

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    -0.05       0.00     0.31
  2   0.0001      0.00     0.21       0.00     0.18
  3   0.0002      0.00     0.20       0.00     0.25
  4   0.0851      0.00     0.08       0.00     0.01
  5   0.1535      0.00     0.09       0.00    -0.22
  6   0.1538      0.00    -0.49       0.00    -0.02
  7   0.2546      0.00    -0.02       0.00    -0.16
  8   0.2573      0.00     0.07       0.00    -0.20
  9   0.8929      0.00     0.03       0.00    -0.29
 10   0.8957      0.00     0.11       0.00    -0.17
 11   0.9067      0.00 (  -1.36)      0.00 (   7.00)
 12   0.9095      0.00    -0.41       0.00    -0.15
 13   2.0399      0.00    -0.10       0.00    -0.12
 14   2.0400      0.00    -0.02       0.00    -0.03
 15   2.0401      0.00     0.16       0.00     0.03
 16   2.0428      0.00    -0.06       0.00    -0.10
 17   2.1950      0.00     0.15       0.00     0.23
 18   2.1978      0.00     0.29       0.00    -0.03
 19   2.1979      0.00     0.33       0.00     0.11
 20   2.3539      0.00    -0.34       0.00    -0.17
 21   2.3540      0.00     0.18       0.00     0.06
 22   3.0117      0.00     0.23       0.00     0.01
 23   3.0120      0.00     0.18       0.00     0.08
 24   3.0145      0.00     0.11       0.00     0.00
 25   3.0147      0.00     0.01       0.00     0.03
 26   3.0828      0.00    -0.15       0.00     0.11
 27   3.0829      0.00    -0.01       0.00     0.23
 28   3.0830      0.00    -0.03       0.00     0.15
 29   5.9138      0.00    -0.10       0.00    -0.06
 30   5.9166      0.00     0.11       0.00    -0.22

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.

131695    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        37.381    37.381    37.381
ecceobj         0.056     0.056     0.056
incobj          4.257     4.257     4.257
qmin           35.042    34.993    35.020
qmax           39.609    39.766    39.628
amean          37.234    37.234    37.234
amin           36.945    36.932    36.945
amax           37.524    37.552    37.533
emean           0.027     0.034     0.037
emin            0.000     0.003     0.001
emax            0.056     0.059     0.057
imean           3.491     3.358     3.337
imin            2.155     2.151     2.080
imax            4.755     4.665     4.604
excite_mean     0.068     0.069     0.070
fracstop        1.000     1.000     1.000
cjmean          3.028     3.028     3.027

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       178.4     173.5     187.3
kozaiamp        180.0     179.9     180.0