Orbit Fit and Astrometric record for 11FX62

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: 11FX62    
# Created Mon Dec 11 02:37:44 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   33 observations of   34
# Arc:  10.21y
# First observation: 2002/02/07
#  Last observation: 2012/04/26
# Chi-squared of fit:   114.06 DOF:   60 RMS:  0.33
# Min/Max residuals:    -0.71    0.97
# Exact a, adot, b, bdot, g, gdot:
  2.854529E-05  8.479322E-02 -6.239633E-06 -2.221287E-02  5.078660E-02 -8.016503E-03
# Covariance matrix:
  1.3138E-13 -5.6600E-14 -1.0043E-14  1.3619E-14  7.6682E-14 -5.7398E-14
 -5.6600E-14  5.7249E-14  1.1316E-14 -1.5539E-14 -3.7952E-14  6.0576E-14
 -1.0043E-14  1.1316E-14  8.4983E-14 -1.2860E-14 -9.9418E-15  1.2691E-14
  1.3619E-14 -1.5539E-14 -1.2860E-14  6.3518E-15  1.2794E-14 -1.7312E-14
  7.6682E-14 -3.7952E-14 -9.9418E-15  1.2794E-14  2.4864E-13 -7.1444E-14
 -5.7398E-14  6.0576E-14  1.2691E-14 -1.7312E-14 -7.1444E-14  7.0379E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
  -11.531876  144.627352    0.101947   -0.195659   -0.958534  2452312.878653
# Heliocentric elements and errors
Epoch:              2452312.5000  =  2002/02/07
Mean Anomaly:          356.67547 +/-   265.571
Argument of Peri:      232.69309 +/-     0.001
Long of Asc Node:      288.25118 +/-     0.000
Inclination:            18.24964 +/-     0.000
Eccentricity:         0.57974379 +/-    0.0001
Semi-Major Axis:     48.51092382 +/-    0.0579
Time of Perihelion: 2453452.1871 +/-   91041.0
Perihelion:          20.38701684 +/-    0.0246
Aphelion:            76.63483079 +/-    0.0915
Period (y)              337.8839 +/-      0.60
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -16.46917572 +/-    0.0002
Ecliptic Y           11.82298145 +/-    0.0001
Ecliptic Z           -3.93644350 +/-    0.0000
Ecliptic XDOT        -0.00211421 +/-    0.0000
Ecliptic YDOT        -0.00411170 +/-    0.0000
Ecliptic ZDOT        -0.00108669 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   20.65222450 +/-    0.0002
Geocenter to KBO     19.69031437 +/-    0.0002
# Hcoef:  7.34

The following table shows the complete astrometric record for 11FX62. 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 (11FX62) followed by the observatory code and reference code for the source of the astrometry.

2002 02  07.37791  09 32 23.36   +02 25 08.0   19.8R 11FX62    644  C~0X7G      
2002 02  07.42868  09 32 22.95   +02 25 09.0         11FX62    644  C~0X7G      
2002 02  17.32125  09 30 56.11   +02 30 13.3   20.5R 11FX62    644  C~0X7G      
2002 02  17.32241  09 30 56.08   +02 30 12.7   20.3R 11FX62    644  C~0X7G      
2002 03  06.17292  09 28 36.73   +02 40 34.7   19.9R 11FX62    644  C~0X7G      
2002 03  06.18332  09 28 36.66   +02 40 35.5   19.9R 11FX62    644  C~0X7G      
2002 03  06.19403  09 28 36.56   +02 40 35.6   20.3R 11FX62    644  C~0X7G      
2002 03  14.22228  09 27 38.14   +02 45 54.3         11FX62    644  C~0X7G      
2002 03  14.24344  09 27 37.92   +02 45 55.1   19.8R 11FX62    644  C~0X7G      
2002 03  14.26461  09 27 37.78   +02 45 55.6   19.7R 11FX62    644  C~0X7G      
2002 03  15.18650  09 27 31.52   +02 46 33.4         11FX62    644  C~0X7G      
2002 03  15.19704  09 27 31.45   +02 46 33.3         11FX62    644  C~0X7G      
2002 03  15.20866  09 27 31.36   +02 46 34.0         11FX62    644  C~0X7G      
2003 01  15.55018  09 52 20.70   -00 28 53.4         11FX62    644  C~0X7G      
2003 02  05.39049  09 49 34.80   -00 24 12.9         11FX62    644  C~0X7G      
2005 02  04.30027  10 23 55.51   -06 04 30.7   20.2R 11FX62    644  Cv4440      
2005 02  04.37003  10 23 55.00   -06 04 29.3   20.0R 11FX62    644  Cv4440      
2005 02  04.43380  10 23 54.49   -06 04 28.5   20.4R 11FX62    644  Cv4440      
2005 02  05.28386  10 23 47.64   -06 04 14.1   20.4R 11FX62    644  Cv4440      
2005 02  05.35423  10 23 47.07   -06 04 12.7   20.2R 11FX62    644  Cv4440      
2005 02  05.42835  10 23 46.42   -06 04 11.8   20.0R 11FX62    644  Cv4440      
2005 02  09.25431  10 23 14.89   -06 02 55.3   20.0R 11FX62    644  Cv4440      
2011 03  28.13171  12 02 44.619  -21 00 14.61  20.2R 11FX62    809  C~0UX7      
2011 03  28.24248  12 02 43.689  -21 00 09.28  20.2R 11FX62    809  C~0UX7      
2011 03  28.35072  12 02 42.733  -21 00 03.78  20.3R 11FX62    809  C~0UX7      
2011 03  29.00998  12 02 37.222  -20 59 31.41  20.4R 11FX62    809  C~0UX7      
2011 03  29.09277  12 02 36.537  -20 59 27.16  20.3R 11FX62    809  C~0UX7      
2011 03  29.17560  12 02 35.801  -20 59 23.20  20.1R 11FX62    809  C~0UX7      
2011 04  30.07729  11 58 39.20   -20 27 15.5         11FX62    807  C~0X7G      
2011 04  30.12905  11 58 38.91   -20 27 12.5         11FX62    807  C~0X7G      
2011 05  29.98960  11 56 50.64   -19 55 55.6         11FX62    807  C~0X7G      
2011 05  30.02949  11 56 50.58   -19 55 53.3         11FX62    807  C~0X7G      
2012 04  26.38579  12 16 36.908  -22 36 31.33  21.2g 11FX62    F51  C~0g7h      
2012 04  26.39658  12 16 36.773  -22 36 29.86  21.2g 11FX62    F51  C~0g7h      

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 (  -0.29)      0.00 (   2.73)
  2   0.0001      0.00     0.29       0.00    -0.40
  3   0.0272      0.00     0.08       0.00     0.52
  4   0.0272      0.00    -0.21       0.00    -0.12
  5   0.0734      0.00     0.12       0.00    -0.35
  6   0.0734      0.00     0.29       0.00     0.04
  7   0.0734      0.00     0.05       0.00    -0.28
  8   0.0954      0.00     0.97       0.00    -0.32
  9   0.0955      0.00    -0.11       0.00    -0.37
 10   0.0955      0.00     0.01       0.00    -0.71
 11   0.0980      0.00    -0.13       0.00     0.34
 12   0.0981      0.00    -0.09       0.00    -0.18
 13   0.0981      0.00    -0.24       0.00     0.06
 14   0.9368      0.00    -0.20       0.00     0.26
 15   0.9939      0.00    -0.08       0.00     0.43
 16   2.9923      0.00    -0.64       0.00     0.18
 17   2.9924      0.00     0.29       0.00     0.45
 18   2.9926      0.00     0.50       0.00     0.19
 19   2.9950      0.00     0.54       0.00     0.13
 20   2.9951      0.00     0.72       0.00     0.30
 21   2.9953      0.00     0.17       0.00    -0.11
 22   3.0058      0.00     0.01       0.00    -0.14
 23   9.1328      0.00     0.04       0.00     0.07
 24   9.1331      0.00     0.43       0.00    -0.03
 25   9.1334      0.00     0.03       0.00     0.10
 26   9.1352      0.00     0.24       0.00    -0.16
 27   9.1354      0.00     0.60       0.00     0.02
 28   9.1357      0.00     0.24       0.00    -0.13
 29   9.2230      0.00    -0.10       0.00     0.04
 30   9.2231      0.00     0.22       0.00    -0.39
 31   9.3049      0.00    -0.29       0.00    -0.13
 32   9.3050      0.00    -0.38       0.00    -0.05
 33  10.2149      0.00     0.31       0.00    -0.56
 34  10.2150      0.00    -0.60       0.00     0.21

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.

11FX62    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        47.898    47.897    47.898
ecceobj         0.574     0.574     0.574
incobj         18.268    18.268    18.268
qmin           20.059    20.239    20.184
qmax           76.586    77.844    77.708
amean          47.313    47.980    47.923
amin           46.150    47.047    46.933
amax           48.734    49.314    49.689
emean           0.559     0.562     0.562
emin            0.539     0.549     0.548
emax            0.580     0.583     0.580
imean          21.455    21.572    21.496
imin           19.715    19.716    19.714
imax           23.307    22.271    23.339
excite_mean     0.668     0.672     0.671
fracstop        0.024     0.038     0.024
cjmean          2.570     2.567     2.568

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       246.7     255.7     246.1
kozaiamp         12.5      26.1      11.8