Orbit Fit and Astrometric record for 05GX206

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: 05GX206   
# Created Wed Oct 18 01:37:36 2017
# Orbit generated from Bernstein formalism
# Fitting   42 observations of   42
# Arc:  13.24y
# First observation: 2002/03/12
#  Last observation: 2015/06/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.011661   0.040745  -0.001465   0.004680   0.028999   0.000000
# Chi-squared of fit:    52.55 DOF:   78 RMS:  0.20
# Min/Max residuals:    -0.59    0.41
# Exact a, adot, b, bdot, g, gdot:
  1.805995E-05  3.404547E-02  3.330631E-06  3.880166E-03  2.808765E-02 -8.942046E-03
# Covariance matrix:
  3.7108E-13 -8.9591E-14  1.3839E-14 -7.9582E-15 -1.4650E-14 -1.2069E-13
 -8.9591E-14  4.4395E-14 -8.5118E-15  4.9332E-15  1.2937E-14  7.4516E-14
  1.3839E-14 -8.5118E-15  2.6183E-13 -2.2065E-14 -1.2209E-15 -1.5048E-14
 -7.9582E-15  4.9332E-15 -2.2065E-14  2.4656E-15  1.4360E-15  8.6551E-15
 -1.4650E-14  1.2937E-14 -1.2209E-15  1.4360E-15  7.6367E-14  1.6056E-14
 -1.2069E-13  7.4516E-14 -1.5048E-14  8.6551E-15  1.6056E-14  1.3125E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.930501  172.101391    0.005115    0.119838   -0.986594  2452345.773403
# Heliocentric elements and errors
Epoch:              2452340.5000  =  2002/03/07
Mean Anomaly:          347.63251 +/-     0.002
Argument of Peri:       89.72565 +/-     0.003
Long of Asc Node:      125.94974 +/-     0.000
Inclination:             9.31297 +/-     0.000
Eccentricity:         0.52237769 +/-    0.0000
Semi-Major Axis:     69.47980598 +/-    0.0061
Time of Perihelion: 2459607.6688 +/-       0.4
Perihelion:          33.18510541 +/-    0.0038
Aphelion:           105.77450655 +/-    0.0097
Period (y)              579.1567 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -35.99023439 +/-    0.0003
Ecliptic Y            5.00335607 +/-    0.0001
Ecliptic Z            4.29616257 +/-    0.0000
Ecliptic XDOT         0.00043778 +/-    0.0000
Ecliptic YDOT        -0.00341335 +/-    0.0000
Ecliptic ZDOT         0.00027050 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.58944597 +/-    0.0003
Geocenter to KBO     35.60283207 +/-    0.0004
# Hcoef:  7.01

The following table shows the complete astrometric record for 05GX206. 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 (05GX206) followed by the observatory code and reference code for the source of the astrometry.

2002 03  12.272660 11 42 03.11   +09 29 44.1   22.1V 05GX206   645  C~1vVP      
2002 03  12.273490 11 42 03.11   +09 29 44.1   21.7V 05GX206   645  C~1vVP      
2002 03  12.275977 11 42 03.09   +09 29 44.1   23.5V 05GX206   645  C~1vVP      
2005 04  11.16672  12 02 56.42   +07 56 43.0   22.3R 05GX206   675  Cn3389      
2005 04  11.20405  12 02 56.25   +07 56 44.0   22.6R 05GX206   675  Cn3389      
2005 04  12.16487  12 02 51.83   +07 57 09.3   21.5R 05GX206   675  Cn3389      
2005 04  12.20242  12 02 51.66   +07 57 10.3   22.7R 05GX206   675  Cn3389      
2012 12  22.61664  13 13 02.448  +01 35 20.14  22.2w 05GX206   F51  C~1vVP      
2012 12  22.62123  13 13 02.449  +01 35 19.90  22.6w 05GX206   F51  C~1vVP      
2012 12  22.62585  13 13 02.475  +01 35 20.08  22.7w 05GX206   F51  C~1vVP      
2012 12  22.63045  13 13 02.469  +01 35 20.23  22.6w 05GX206   F51  C~1vVP      
2013 03  19.49722  13 11 23.418  +02 07 58.48  22.6w 05GX206   F51  C~1vVP      
2013 03  19.51263  13 11 23.333  +02 07 59.35  22.6w 05GX206   F51  C~1vVP      
2013 03  19.52807  13 11 23.270  +02 07 59.80  22.4w 05GX206   F51  C~1vVP      
2013 03  19.54349  13 11 23.194  +02 08 00.50  22.3w 05GX206   F51  C~1vVP      
2014 04  30.31905  13 16 33.897  +01 44 36.97  22.2w 05GX206   F51  C~1vVP      
2014 04  30.33222  13 16 33.824  +01 44 37.17  22.3w 05GX206   F51  C~1vVP      
2014 04  30.34539  13 16 33.752  +01 44 37.66  22.4w 05GX206   F51  C~1vVP      
2014 07  01.26984  13 13 46.601  +01 49 15.22  22.6w 05GX206   F51  C~1vVP      
2014 07  01.28130  13 13 46.619  +01 49 14.95  22.4w 05GX206   F51  C~1vVP      
2014 07  01.29276  13 13 46.609  +01 49 14.84  22.3w 05GX206   F51  C~1vVP      
2014 07  01.30419  13 13 46.607  +01 49 14.58  22.6w 05GX206   F51  C~1vVP      
2015 03  25.43607  13 28 26.801  +00 39 10.61  22.2w 05GX206   F51  C~1vVP      
2015 03  25.45090  13 28 26.725  +00 39 11.12  22.6w 05GX206   F51  C~1vVP      
2015 03  25.46579  13 28 26.652  +00 39 11.52  22.5w 05GX206   F51  C~1vVP      
2015 03  25.48080  13 28 26.581  +00 39 12.08  22.4w 05GX206   F51  C~1vVP      
2015 03  27.46828  13 28 16.800  +00 40 23.29  22.3w 05GX206   F51  C~1vVP      
2015 03  27.48339  13 28 16.715  +00 40 23.89  22.4w 05GX206   F51  C~1vVP      
2015 03  27.50149  13 28 16.635  +00 40 24.41  22.5w 05GX206   F51  C~1vVP      
2015 03  27.51660  13 28 16.560  +00 40 24.93  22.1w 05GX206   F51  C~1vVP      
2015 04  18.34611  13 26 23.286  +00 52 41.94  22.2w 05GX206   F51  C~1vVP      
2015 04  18.36065  13 26 23.219  +00 52 42.38  22.2w 05GX206   F51  C~1vVP      
2015 04  18.37519  13 26 23.149  +00 52 43.02  22.4w 05GX206   F51  C~1vVP      
2015 04  20.38382  13 26 12.567  +00 53 43.89  22.3w 05GX206   F51  C~1vVP      
2015 04  20.39737  13 26 12.511  +00 53 44.13  22.5w 05GX206   F51  C~1vVP      
2015 04  20.41086  13 26 12.434  +00 53 44.34  22.1w 05GX206   F51  C~1vVP      
2015 05  19.33185  13 23 54.894  +01 04 39.50  21.9w 05GX206   F51  C~1vVP      
2015 05  19.34363  13 23 54.865  +01 04 39.57  22.2w 05GX206   F51  C~1vVP      
2015 05  19.36695  13 23 54.762  +01 04 39.89  22.4w 05GX206   F51  C~1vVP      
2015 06  08.26967  13 22 50.010  +01 07 09.25  22.6w 05GX206   F51  C~1vVP      
2015 06  08.28140  13 22 49.967  +01 07 09.34  22.6w 05GX206   F51  C~1vVP      
2015 06  08.29311  13 22 49.935  +01 07 09.19  22.5w 05GX206   F51  C~1vVP      

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     0.23       0.00    -0.24
  2   0.0000      0.00     0.30       0.00    -0.24
  3   0.0000     -0.27     0.23      -0.12    -0.36
  4   3.0825  19304.09    -0.41    2450.90     0.29
  5   3.0826  19301.35    -0.34    2450.77     0.32
  6   3.0853  19230.48    -0.25    2446.70     0.27
  7   3.0854  19227.74    -0.19    2446.57     0.32
  8  10.7826  91228.26     0.24    9041.63    -0.04
  9  10.7826  91228.40     0.12    9041.40    -0.36
 10  10.7826  91228.73     0.18    9041.77    -0.09
 11  10.7826  91228.56    -0.25    9041.87    -0.09
 12  11.0205  88632.51     0.20   10238.86    -0.16
 13  11.0205  88630.70    -0.11   10239.09     0.07
 14  11.0205  88629.46     0.15   10239.07     0.04
 15  11.0206  88627.88     0.08   10239.20     0.17
 16  12.1343  94392.34     0.11   11140.83     0.11
 17  12.1343  94391.04     0.05   11140.49    -0.07
 18  12.1344  94389.61    -0.14   11140.44     0.05
 19  12.3039  91517.72     0.10   10183.83    -0.12
 20  12.3039  91518.15     0.41   10183.69    -0.07
 21  12.3040  91518.04     0.19   10183.51    -0.07
 22  12.3040  91518.14     0.17   10183.24    -0.15
 23  13.0354 108500.86    -0.16   12587.81     0.25
 24  13.0354 108499.27    -0.18   12587.74     0.21
 25  13.0354 108497.78    -0.09   12587.59     0.09
 26  13.0355 108496.25    -0.03   12587.61     0.13
 27  13.0409 108287.85     0.01   12584.65    -0.10
 28  13.0410 108286.05    -0.17   12584.61    -0.11
 29  13.0410 108284.38     0.10   12584.52    -0.15
 30  13.0411 108282.80     0.14   12584.47    -0.16
 31  13.1008 105929.21    -0.02   12462.27     0.04
 32  13.1009 105927.82     0.17   12462.20     0.11
 33  13.1009 105926.27     0.20   12462.31     0.37
 34  13.1064 105711.83    -0.59   12442.93     0.16
 35  13.1064 105710.74    -0.23   12442.75     0.12
 36  13.1065 105709.30    -0.21   12442.37    -0.11
 37  13.1857 103011.02    -0.32   12056.11    -0.13
 38  13.1857 103010.49     0.07   12055.96    -0.08
 39  13.1857 103008.57    -0.04   12055.50    -0.15
 40  13.2402 101832.62     0.27   11716.27     0.04
 41  13.2403 101831.85    -0.00   11716.04     0.02
 42  13.2403 101831.38     0.04   11715.64    -0.15

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.

05GX206    quality flag:3

Type:       7:2EEEEE  7:2EEEEE  7:2EEEEE

axisobj        68.585    68.602    68.567
ecceobj         0.517     0.517     0.517
incobj          9.326     9.326     9.326
qmin           32.379    32.364    32.369
qmax          108.903   108.908   108.984
amean          69.409    69.409    69.409
amin           68.292    68.218    68.254
amax           70.980    70.996    71.015
emean           0.523     0.523     0.523
emin            0.513     0.513     0.513
emax            0.535     0.535     0.535
imean           7.618     7.594     7.614
imin            7.262     7.262     7.259
imax            7.897     7.894     7.908
excite_mean     0.540     0.540     0.540
fracstop        1.000     1.000     1.000
cjmean          2.999     2.999     2.999

libcent 0       179.5     180.3     180.8
libamp  0       116.5     115.1     115.0
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       177.8     172.4     176.9
kozaiamp         98.7      95.0      98.5