Orbit Fit and Astrometric record for 10GX34

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: 10GX34    
# Created Sat Oct 21 01:37:48 2017
# Orbit generated from Bernstein formalism
# Fitting   29 observations of   29
# Arc:   2.17y
# First observation: 2010/04/09
#  Last observation: 2012/06/10
Preliminary a, adot, b, bdot, g, gdot:
  -0.000208   0.093773  -0.000031   0.010552   0.055659   0.000000
# Chi-squared of fit:   123.44 DOF:   52 RMS:  0.36
# Min/Max residuals:    -1.30    0.64
# Exact a, adot, b, bdot, g, gdot:
  2.520497E-05  9.007706E-02  2.193186E-06  1.002354E-02  5.568736E-02 -2.270008E-02
# Covariance matrix:
  9.2605E-14 -2.4305E-13  2.7137E-15 -3.9906E-14  1.0069E-13 -1.6828E-12
 -2.4305E-13  4.6721E-12 -3.9246E-14  7.1842E-13  1.9282E-13  3.1011E-11
  2.7137E-15 -3.9246E-14  6.4564E-14 -4.1142E-14  3.7315E-15 -2.7862E-13
 -3.9906E-14  7.1842E-13 -4.1142E-14  1.9645E-13 -1.1917E-14  4.9586E-12
  1.0069E-13  1.9282E-13  3.7315E-15 -1.1917E-14  6.3973E-13 -2.8510E-13
 -1.6828E-12  3.1011E-11 -2.7862E-13  4.9586E-12 -2.8510E-13  2.1346E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.193775 -136.327058    0.422960   -0.161243   -0.896744  2455295.580536
# Heliocentric elements and errors
Epoch:              2455290.5000  =  2010/04/04
Mean Anomaly:          338.35039 +/-     0.007
Argument of Peri:      356.55875 +/-     0.023
Long of Asc Node:      279.22538 +/-     0.001
Inclination:            11.54247 +/-     0.000
Eccentricity:         0.42421997 +/-    0.0001
Semi-Major Axis:     28.74018652 +/-    0.0031
Time of Perihelion: 2458674.8894 +/-       1.0
Perihelion:          16.54802540 +/-    0.0039
Aphelion:            40.93234764 +/-    0.0056
Period (y)              154.0787 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -13.73022274 +/-    0.0002
Ecliptic Y          -12.53051746 +/-    0.0002
Ecliptic Z           -3.17803823 +/-    0.0000
Ecliptic XDOT         0.00379156 +/-    0.0000
Ecliptic YDOT        -0.00249900 +/-    0.0000
Ecliptic ZDOT         0.00068249 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   18.85822927 +/-    0.0002
Geocenter to KBO     17.95739788 +/-    0.0003
# Hcoef:  8.17

The following table shows the complete astrometric record for 10GX34. 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 (10GX34) followed by the observatory code and reference code for the source of the astrometry.

2010 04  09.07977  14 31 23.723  -25 38 24.97  20.6R 10GX34    809  C~0GEN      
2010 04  09.16481  14 31 22.928  -25 38 22.20  20.4R 10GX34    809  C~0GEN      
2010 04  09.24973  14 31 22.148  -25 38 19.21  21.1R 10GX34    809  C~0GEN      
2010 04  10.07867  14 31 14.590  -25 37 52.89  21.1R 10GX34    809  C~0GEN      
2010 04  10.08378  14 31 14.520  -25 37 52.60  21.2R 10GX34    809  C~0GEN      
2010 04  10.12660  14 31 14.114  -25 37 51.24  20.8R 10GX34    809  C~0GEN      
2010 04  10.16183  14 31 13.762  -25 37 50.08  20.5R 10GX34    809  C~0GEN      
2010 04  10.16979  14 31 13.689  -25 37 49.94  20.5R 10GX34    809  C~0GEN      
2010 04  10.24663  14 31 12.942  -25 37 47.35  20.5R 10GX34    809  C~0GEN      
2010 04  11.19903  14 31 04.141  -25 37 15.92  20.8R 10GX34    807  C~0GEN      
2010 04  11.29153  14 31 03.294  -25 37 13.75  20.6R 10GX34    807  C~0GEN      
2010 04  14.16398  14 30 36.168  -25 35 31.81  20.6R 10GX34    807  C~0GEN      
2010 04  14.20272  14 30 35.776  -25 35 30.61  20.6R 10GX34    807  C~0GEN      
2010 04  15.07216  14 30 27.495  -25 34 57.57  20.3R 10GX34    809  C~0GEN      
2010 04  15.15632  14 30 26.653  -25 34 54.01  21.2R 10GX34    809  C~0GEN      
2010 04  15.23964  14 30 25.877  -25 34 51.56  20.4R 10GX34    809  C~0GEN      
2010 04  24.02170  14 28 59.298  -25 28 46.06  20.5R 10GX34    807  C~0Gu6      
2010 04  24.06780  14 28 58.761  -25 28 43.77  20.5R 10GX34    807  C~0Gu6      
2010 05  09.98322  14 26 18.651  -25 15 11.84  20.5R 10GX34    809  C~0HIY      
2010 05  10.06626  14 26 17.831  -25 15 07.63  20.0R 10GX34    809  C~0HIY      
2010 05  10.15119  14 26 16.952  -25 15 02.84  20.8R 10GX34    809  C~0HIY      
2010 06  06.02935  14 22 20.664  -24 48 32.96  20.8R 10GX34    807  C~0IRr      
2010 06  06.10345  14 22 20.085  -24 48 29.98  21.1R 10GX34    807  C~0IRr      
2011 04  08.20669  14 54 46.915  -26 39 45.46  20.4R 10GX34    809  C~0hJz      
2011 04  08.37760  14 54 45.394  -26 39 41.47        10GX34    809  C~0hJz      
2012 06  10.251779 15 08 51.319  -26 43 36.24  20.0R 10GX34    F65  C~0hJz      
2012 06  10.275974 15 08 51.135  -26 43 34.72  20.0R 10GX34    F65  C~0hJz      
2012 06  10.294147 15 08 50.967  -26 43 33.71  20.0R 10GX34    F65  C~0hJz      
2012 06  10.315907 15 08 50.766  -26 43 32.42  19.9R 10GX34    F65  C~0hJz      

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     0.08       0.00     0.13
  2   0.0002    -11.07    -0.07      -0.81     0.25
  3   0.0005    -22.02    -0.02      -1.34     0.61
  4   0.0027   -127.29     0.44      -9.03     0.31
  5   0.0027   -128.28     0.11      -9.06     0.33
  6   0.0029   -133.91     0.04      -9.52     0.31
  7   0.0030   -138.80    -0.25      -9.95     0.25
  8   0.0030   -139.78    -0.19     -10.13     0.15
  9   0.0032   -150.18    -0.52     -10.90     0.14
 10   0.0058   -273.01    -0.13     -19.16     0.01
 11   0.0061   -284.56     0.60     -20.77    -0.75
 12   0.0139   -664.81     0.02     -41.66    -0.25
 13   0.0140   -670.22    -0.10     -42.23    -0.50
 14   0.0164   -786.93     0.09     -46.86     0.29
 15   0.0166   -798.86    -0.32     -47.14     0.64
 16   0.0169   -809.59     0.43     -48.19     0.19
 17   0.0409  -2036.81     0.44     -79.69    -0.33
 18   0.0410  -2044.43    -0.53     -79.88    -0.41
 19   0.0846  -4361.24    -0.38     -19.27     0.30
 20   0.0848  -4373.13    -0.11     -18.94     0.04
 21   0.0851  -4385.97    -0.43     -18.33     0.02
 22   0.1587  -7946.21     0.27     416.79     0.18
 23   0.1589  -7954.65     0.38     416.96    -1.30
 24   0.9969  19185.63     0.18    2120.59    -0.55
 25   0.9974  19164.75     0.09    2118.78    -0.69
 26   2.1716  30328.69    -0.23    4907.14    -0.07
 27   2.1717  30325.87     0.13    4908.00     0.22
 28   2.1717  30323.38     0.04    4908.42     0.21
 29   2.1718  30320.39    -0.08    4908.99     0.27

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.

10GX34    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        28.557    28.564    28.549
ecceobj         0.421     0.421     0.422
incobj         11.547    11.547    11.547
qmin           14.378    16.412    16.395
qmax           41.588    42.632    43.155
amean          26.730    29.072    28.863
amin           25.513    28.359    28.535
amax           29.077    29.931    30.000
emean           0.421     0.418     0.423
emin            0.385     0.401     0.411
emax            0.456     0.432     0.438
imean          12.302    14.495    13.538
imin            9.770    12.939    12.927
imax           15.263    16.143    14.515
excite_mean     0.473     0.488     0.484
fracstop        0.056     0.024     0.009
cjmean          2.796     2.767     2.770

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       146.5      72.2      52.1
kozaiamp        179.7     179.3     179.4