Orbit Fit and Astrometric record for 136120

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: 136120    
# Created Sun Sep 21 01:36:43 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   17 observations of   17
# Arc:   3.06y
# First observation: 2003/06/01
#  Last observation: 2006/06/22
# Chi-squared of fit:    40.20 DOF:   28 RMS:  0.27
# Min/Max residuals:    -0.38    0.85
# Exact a, adot, b, bdot, g, gdot:
  1.879561E-05  3.911576E-02  7.079314E-06  1.429711E-02  3.139606E-02  3.438580E-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
   -0.642702 -123.795194   -0.250769   -0.011033   -0.985662  2452791.706733
# Heliocentric elements and errors
Epoch:              2452792.5000  =  2003/06/02
Mean Anomaly:            5.06718 +/-     0.000
Argument of Peri:      341.92733 +/-     0.000
Long of Asc Node:      238.33725 +/-     0.000
Inclination:            20.11835 +/-     0.000
Eccentricity:         0.47941649 +/-    0.0000
Semi-Major Axis:     62.25700170 +/-    0.0000
Time of Perihelion: 2450267.0146 +/-       0.0
Perihelion:          32.40996874 +/-    0.0000
Aphelion:            92.10403467 +/-    0.0000
Period (y)              491.2364 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.05704608 +/-    0.0000
Ecliptic Y          -27.42252247 +/-    0.0000
Ecliptic Z           -0.35704848 +/-    0.0000
Ecliptic XDOT         0.00265421 +/-    0.0000
Ecliptic YDOT        -0.00216325 +/-    0.0000
Ecliptic ZDOT         0.00124350 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.83557710 +/-    0.0000
Geocenter to KBO     31.85112059 +/-    0.0000
# Hcoef:  7.85

The following table shows the complete astrometric record for 136120. 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 (136120) followed by the observatory code and reference code for the source of the astrometry.

2003 06  01.20599  15 34 54.79   -19 55 40.1   22.3R 136120    807  Ci2139      
2003 06  02.14031  15 34 49.47   -19 55 14.2         136120    807  Ci2139      
2003 06  02.20299  15 34 49.14   -19 55 11.8         136120    807  Ci2139      
2003 07  06.30907  15 32 10.07   -19 41 01.7   22.9R 136120    568  Ci2707      
2003 07  06.38996  15 32 09.79   -19 40 59.8         136120    568  Ci2707      
2004 07  15.09464  15 41 37.04   -19 21 50.8   22.6R 136120    807  Cn5943      
2004 07  16.01386  15 41 34.72   -19 21 36.0         136120    807  Cn5943      
2004 07  16.05665  15 41 34.61   -19 21 35.2         136120    807  Cn5943      
2005 05  10.23355  15 56 58.44   -19 28 41.8   22.5R 136120    807  Cn5342      
2005 05  10.30035  15 56 58.04   -19 28 39.7         136120    807  Cn5342      
2005 05  11.16077  15 56 53.05   -19 28 17.8         136120    807  Cn5342      
2006 05  04.41951  16 07 19.48   -19 09 52.5   22.9R 136120    250  S~06HM      
2006 05  04.42391  16 07 19.45   -19 09 52.4         136120    250  S~06HM      
2006 05  04.42831  16 07 19.43   -19 09 52.3         136120    250  S~06HM      
2006 05  04.43270  16 07 19.41   -19 09 52.2         136120    250  S~06HM      
2006 06  22.03890  16 02 43.51   -18 50 51.6   23.1R 136120    304  Cr4835      
2006 06  22.07397  16 02 43.32   -18 50 50.9         136120    304  Cr4835      

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    -0.21       0.00     0.85
  2   0.0026      0.00     0.05       0.00    -0.33
  3   0.0027      0.00     0.53       0.00     0.31
  4   0.0961      0.00    -0.32       0.00    -0.27
  5   0.0963      0.00    -0.38       0.00    -0.04
  6   1.1222      0.00     0.02       0.00     0.03
  7   1.1247      0.00     0.26       0.00     0.07
  8   1.1248      0.00     0.28       0.00     0.19
  9   1.9412      0.00     0.05       0.00    -0.18
 10   1.9414      0.00    -0.06       0.00     0.21
 11   1.9438      0.00    -0.37       0.00     0.17
 12   2.9246      0.00     0.30       0.00    -0.16
 13   2.9246      0.00     0.21       0.00    -0.17
 14   2.9246      0.00     0.27       0.00    -0.17
 15   2.9246      0.00     0.33       0.00    -0.18
 16   3.0577      0.00     0.18       0.00     0.19
 17   3.0578      0.00     0.02       0.00     0.18

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.

136120    quality flag:3

Type:          3:1EE     3:1EE     3:1EE

axisobj        61.533    61.533    61.533
ecceobj         0.473     0.473     0.473
incobj         20.150    20.150    20.150
qmin           31.849    31.858    31.864
qmax           95.804    95.553    95.613
amean          62.626    62.630    62.632
amin           61.530    61.533    61.533
amax           64.104    64.054    64.088
emean           0.481     0.481     0.481
emin            0.468     0.469     0.468
emax            0.494     0.493     0.494
imean          21.282    21.288    21.299
imin           21.007    21.015    20.989
imax           21.629    21.574    21.620
excite_mean     0.602     0.602     0.602
fracstop        1.000     1.000     1.000
cjmean          2.837     2.837     2.837

libcent 0       181.0     179.5     180.3
libamp  0       166.1     165.8     162.2
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       178.3     184.3     176.2
kozaiamp        180.0     180.0     180.0