Orbit Fit and Astrometric record for 05GX186

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.

# Object: 05GX186   
# Created Fri May  2 02:36:56 2008
# Orbit generated from Bernstein formalism
# Fitting   12 observations of   12
# Arc:   1.85y
# First observation: 2005/04/10
#  Last observation: 2007/02/15
Preliminary a, adot, b, bdot, g, gdot:
   0.000004   0.022447  -0.000001   0.001452   0.023664   0.000000
# Chi-squared of fit:     6.02 DOF:   18 RMS:  0.13
# Min/Max residuals:    -0.20    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.486128E-05  2.246920E-02  1.448570E-06  1.449517E-03  2.348511E-02 -5.666270E-04
# Covariance matrix:
  4.8654E-13 -6.6202E-13  4.7355E-15 -2.1262E-14 -2.1351E-13 -7.9787E-12
 -6.6202E-13  1.7113E-12 -1.6554E-14  7.4210E-14  6.2212E-13  2.7847E-11
  4.7355E-15 -1.6554E-14  3.7734E-13 -2.6984E-13 -1.3718E-14 -3.7066E-13
 -2.1262E-14  7.4210E-14 -2.6984E-13  2.8808E-13  6.2694E-14  1.6705E-12
 -2.1351E-13  6.2212E-13 -1.3718E-14  6.2694E-14  1.8233E-12  2.3537E-11
 -7.9787E-12  2.7847E-11 -3.7066E-13  1.6705E-12  2.3537E-11  6.2692E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.889564  171.581830   -0.481394    0.013658   -0.873859  2453470.713723
# Heliocentric elements and errors
Epoch:              2453470.5000  =  2005/04/10
Mean Anomaly:          321.83423 +/-     1.973
Argument of Peri:       53.20349 +/-     2.095
Long of Asc Node:      158.88375 +/-     0.005
Inclination:             3.77400 +/-     0.001
Eccentricity:         0.02312805 +/-    0.0008
Semi-Major Axis:     44.25638760 +/-    0.0108
Time of Perihelion: 2464871.2616 +/-     589.4
Perihelion:          43.23282377 +/-    0.0357
Aphelion:            45.27995143 +/-    0.0359
Period (y)              294.4233 +/-      0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -43.05575585 +/-    0.0024
Ecliptic Y            5.88354689 +/-    0.0004
Ecliptic Z            0.66114805 +/-    0.0000
Ecliptic XDOT        -0.00031517 +/-    0.0000
Ecliptic YDOT        -0.00260836 +/-    0.0000
Ecliptic ZDOT         0.00016799 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.46091753 +/-    0.0024
Geocenter to KBO     42.58016992 +/-    0.0024
# Hcoef:  6.65

The following table shows the complete astrometric record for 05GX186. 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 (05GX186) followed by the observatory code and reference code for the source of the astrometry.

2005 04  10.21298  11 30 28.62   +04 09 21.2   23.3R 05GX186   695  Cn3379      
2005 04  11.21598  11 30 24.89   +04 09 45.3         05GX186   695  Cn3379      
2005 04  11.30781  11 30 24.55   +04 09 47.5         05GX186   695  Cn3379      
2006 03  02.39898  11 38 06.18   +03 25 11.4   22.7R 05GX186   695  Cr3594      
2006 03  02.45107  11 38 05.95   +03 25 13.0         05GX186   695  Cr3594      
2006 03  02.50340  11 38 05.73   +03 25 14.5         05GX186   695  Cr3594      
2006 04  26.05300  11 34 28.71   +03 49 02.4   22.1R 05GX186   807  Cr3594      
2006 04  26.13648  11 34 28.45   +03 49 04.0         05GX186   807  Cr3594      
2006 04  28.04040  11 34 22.89   +03 49 39.7         05GX186   807  Cr3594      
2007 02  15.28762  11 44 00.45   +02 51 59.8         05GX186   304  Cu1516      
2007 02  15.32606  11 44 00.28   +02 52 00.8         05GX186   304  Cu1516      
2007 02  15.36483  11 44 00.15   +02 52 01.7         05GX186   304  Cu1516      

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     0.06       0.00    -0.10
  2   0.0027    -60.78    -0.05       0.13    -0.17
  3   0.0030    -66.33     0.01       0.14    -0.14
  4   0.8930   7341.06     0.06     275.46     0.06
  5   0.8932   7337.26    -0.07     275.57     0.13
  6   0.8933   7333.64    -0.02     275.64     0.16
  7   1.0427   3782.30     0.04     299.82     0.15
  8   1.0429   3778.10    -0.02     299.75     0.13
  9   1.0481   3687.52    -0.03     299.62     0.25
 10   1.8510  13015.80     0.17     556.02    -0.07
 11   1.8511  13013.05    -0.20     555.92    -0.20
 12   1.8512  13010.90     0.05     555.97    -0.19

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.

05GX186    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj       43.791    43.822    43.762
ecceobj        0.014     0.016     0.014
incobj         3.791     3.791     3.791
qmin          42.682    42.605    42.692
qmax          45.494    45.585    45.430
amean         44.008    44.040    43.980
amin          43.669    43.702    43.640
amax          44.346    44.381    44.322
emean          0.013     0.015     0.013
emin           0.000     0.000     0.000
emax           0.026     0.028     0.026
imean          3.561     3.559     3.569
imin           2.995     3.004     3.002
imax           4.196     4.184     4.205
fracstop       1.000     1.000     1.000
cjmean         3.097     3.097     3.097

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      178.6     176.9     177.0
kozaiamp       180.0     180.0     180.0