Orbit Fit and Astrometric record for 123509

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: 123509    
# Created Sat Oct 21 01:36:30 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   50 observations of   54
# Arc:   7.00y
# First observation: 2000/11/26
#  Last observation: 2007/11/27
# Chi-squared of fit:   163.78 DOF:   94 RMS:  0.32
# Min/Max residuals:    -0.65    0.96
# Exact a, adot, b, bdot, g, gdot:
  1.625272E-05  2.300595E-02 -7.162827E-07 -4.112241E-04  2.372151E-02 -8.012372E-04
# 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
   -1.722308   64.380216    0.001683   -0.029598   -0.980026  2451874.614903
# Heliocentric elements and errors
Epoch:              2451874.5000  =  2000/11/26
Mean Anomaly:          318.53481 +/-     0.000
Argument of Peri:      284.36877 +/-     0.000
Long of Asc Node:      185.48312 +/-     0.000
Inclination:             1.96545 +/-     0.000
Eccentricity:         0.05023670 +/-    0.0000
Semi-Major Axis:     44.77544766 +/-    0.0000
Time of Perihelion: 2464479.4019 +/-       0.0
Perihelion:          42.52607702 +/-    0.0000
Aphelion:            47.02481829 +/-    0.0000
Period (y)              299.6181 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           18.64959988 +/-    0.0000
Ecliptic Y           38.88245317 +/-    0.0000
Ecliptic Z           -1.26707363 +/-    0.0000
Ecliptic XDOT        -0.00244270 +/-    0.0000
Ecliptic YDOT         0.00106790 +/-    0.0000
Ecliptic ZDOT        -0.00004449 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.14232430 +/-    0.0000
Geocenter to KBO     42.15587909 +/-    0.0000
# Hcoef:  6.56

The following table shows the complete astrometric record for 123509. 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 (123509) followed by the observatory code and reference code for the source of the astrometry.

2000 11  26.11416  04 10 57.92   +19 19 31.2   22.2R 123509    809  Cc4044      
2000 11  26.17009  04 10 57.65   +19 19 30.4   22.1R 123509    809  Cc4044      
2000 11  26.22604  04 10 57.38   +19 19 29.8   22.1R 123509    809  Cc4044      
2000 11  26.26777  04 10 57.14   +19 19 29.1   22.2R 123509    809  Cc4044      
2000 11  27.11434  04 10 52.92   +19 19 18.1   22.3R 123509    809  Cc4044      
2000 11  27.16508  04 10 52.65   +19 19 17.1   22.1R 123509    809  Cc4044      
2001 01  30.06024  04 06 52.59   +19 09 47.5   22.6R 123509    809  Cc6726      
2001 01  31.05665  04 06 51.16   +19 09 45.8   22.7R 123509    809  Cc6726      
2001 01  31.08593  04 06 51.13   +19 09 45.5   22.9R 123509    809  Cc6726      
2001 02  16.88953  04 06 41.72   +19 09 57.0         123509    950  Cc6726      
2001 02  18.96949  04 06 42.50   +19 10 03.8         123509    950  Cc6726      
2002 02  03.41236  04 12 13.93   +19 22 43.9   22.4R 123509    568  Cf2275      
2002 02  04.42638  04 12 12.75   +19 22 43.0         123509    568  Cf2275      
2004 11  09.45753  04 34 35.61   +20 09 49.2   22.9R 123509    695  Cl9805      
2004 11  10.40238  04 34 31.22   +20 09 38.8         123509    695  Cl9805      
2004 11  10.47794  04 34 30.88   +20 09 38.2         123509    695  Cl9805      
2005 11  03.35174  04 40 39.82   +20 20 52.4   22.8R 123509    695  Cp0607      
2005 11  03.39872  04 40 39.61   +20 20 51.8         123509    695  Cp0607      
2005 11  03.44692  04 40 39.40   +20 20 51.5         123509    695  Cp0607      
2005 11  24.37397  04 39 00.75   +20 17 18.1   22.4R 123509    250  S~06HC      
2005 11  24.38068  04 39 00.71   +20 17 18.0         123509    250  S~06HC      
2005 11  24.38740  04 39 00.68   +20 17 17.9         123509    250  S~06HC      
2005 12  02.24861  04 38 20.65   +20 15 56.0   22.6R 123509    695  Cp9831      
2005 12  02.30156  04 38 20.38   +20 15 55.5         123509    695  Cp9831      
2005 12  02.35518  04 38 20.10   +20 15 54.9         123509    695  Cp9831      
2005 12  30.26506  04 36 03.89   +20 11 35.6   23.1R 123509    688  Cp9831      
2005 12  30.32521  04 36 03.66   +20 11 34.8         123509    688  Cp9831      
2007 08  08.66571  04 52 31.36   +20 43 23.9   23.4R 123509    250  S~06HC      
2007 08  08.67334  04 52 31.39   +20 43 24.0         123509    250  S~06HC      
2007 08  08.72196  04 52 31.56   +20 43 24.1         123509    250  S~06HC      
2007 08  08.72959  04 52 31.59   +20 43 24.1         123509    250  S~06HC      
2007 08  13.71779  04 52 48.50   +20 43 38.5         123509    250  S~06HC      
2007 08  13.72543  04 52 48.52   +20 43 38.6         123509    250  S~06HC      
2007 08  13.73307  04 52 48.55   +20 43 38.6         123509    250  S~06HC      
2007 08  13.74071  04 52 48.57   +20 43 38.6         123509    250  S~06HC      
2007 09  12.89209  04 53 42.24   +20 43 43.7         123509    250  S~06HC      
2007 09  12.90737  04 53 42.24   +20 43 43.7         123509    250  S~06HC      
2007 09  12.91501  04 53 42.25   +20 43 43.6         123509    250  S~06HC      
2007 10  16.79823  04 52 57.69   +20 41 03.6         123509    250  S~06HC      
2007 10  16.80448  04 52 57.67   +20 41 03.6         123509    250  S~06HC      
2007 10  16.81212  04 52 57.65   +20 41 03.5         123509    250  S~06HC      
2007 10  16.82115  04 52 57.62   +20 41 03.5         123509    250  S~06HC      
2007 10  16.86212  04 52 57.50   +20 41 03.2         123509    250  S~06HC      
2007 10  16.87115  04 52 57.48   +20 41 03.1         123509    250  S~06HC      
2007 10  16.87879  04 52 57.46   +20 41 03.1         123509    250  S~06HC      
2007 10  16.88504  04 52 57.44   +20 41 03.0         123509    250  S~06HC      
2007 11  27.88446  04 50 00.76   +20 35 10.7         123509    250  S~06HC      
2007 11  27.89210  04 50 00.72   +20 35 10.6         123509    250  S~06HC      
2007 11  27.89974  04 50 00.68   +20 35 10.5         123509    250  S~06HC      
2007 11  27.90737  04 50 00.64   +20 35 10.5         123509    250  S~06HC      
2008 08  22.55530  04 58 44.99   +20 51 31.5         123509    250  S~06HC      
2008 08  22.56294  04 58 45.01   +20 51 31.5         123509    250  S~06HC      
2008 08  22.61641  04 58 45.14   +20 51 31.5         123509    250  S~06HC      
2008 08  22.62405  04 58 45.16   +20 51 31.5         123509    250  S~06HC      

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     0.10       0.00     0.04
  2   0.0002      0.00     0.07       0.00     0.01
  3   0.0003      0.00     0.30       0.00     0.16
  4   0.0004      0.00    -0.12       0.00     0.02
  5   0.0027      0.00     0.13       0.00     0.34
  6   0.0029      0.00    -0.04       0.00     0.01
  7   0.1778      0.00    -0.04       0.00    -0.05
  8   0.1805      0.00    -0.14       0.00     0.02
  9   0.1806      0.00     0.05       0.00    -0.23
 10   0.2266      0.00    -0.08       0.00     0.01
 11   0.2323      0.00    -0.03       0.00     0.01
 12   1.1890      0.00     0.23       0.00    -0.35
 13   1.1918      0.00     0.28       0.00    -0.39
 14   3.9544      0.00    -0.08       0.00     0.12
 15   3.9570      0.00    -0.21       0.00    -0.12
 16   3.9572      0.00     0.06       0.00     0.11
 17   4.9370      0.00    -0.18       0.00     0.19
 18   4.9371      0.00    -0.27       0.00     0.04
 19   4.9373      0.00    -0.27       0.00     0.22
 20   4.9946      0.00     0.96       0.00     0.42
 21   4.9946      0.00     0.87       0.00     0.39
 22   4.9946      0.00     0.93       0.00     0.36
 23   5.0161      0.00    -0.06       0.00     0.18
 24   5.0163      0.00     0.01       0.00     0.22
 25   5.0164      0.00    -0.02       0.00     0.17
 26   5.0928      0.00    -0.65       0.00     0.06
 27   5.0930      0.00    -0.06       0.00    -0.26
 28   6.6983      0.00     0.12       0.00     0.55
 29   6.6983      0.00     0.15       0.00     0.63
 30   6.6984      0.00     0.08       0.00     0.56
 31   6.6985      0.00     0.11       0.00     0.53
 32   6.7121      0.00     0.04       0.00    -0.31
 33   6.7121      0.00    -0.03       0.00    -0.23
 34   6.7122      0.00     0.06       0.00    -0.25
 35   6.7122      0.00    -0.00       0.00    -0.27
 36   6.7947      0.00    -0.14       0.00    -0.39
 37   6.7948      0.00    -0.21       0.00    -0.35
 38   6.7948      0.00    -0.10       0.00    -0.43
 39   6.8876      0.00    -0.03       0.00    -0.41
 40   6.8876      0.00    -0.06       0.00    -0.37
 41   6.8876      0.00    -0.04       0.00    -0.42
 42   6.8876      0.00    -0.10       0.00    -0.35
 43   6.8877      0.00    -0.14       0.00    -0.37
 44   6.8878      0.00    -0.05       0.00    -0.41
 45   6.8878      0.00    -0.03       0.00    -0.36
 46   6.8878      0.00    -0.06       0.00    -0.41
 47   7.0028      0.00 (  -4.09)      0.00 (   2.03)
 48   7.0028      0.00 (  -4.11)      0.00 (   2.00)
 49   7.0028      0.00 (  -4.13)      0.00 (   1.97)
 50   7.0029      0.00 (  -4.15)      0.00 (   2.04)
 51   7.7384      0.00     0.07       0.00     0.75
 52   7.7384      0.00     0.09       0.00     0.74
 53   7.7385      0.00     0.08       0.00     0.69
 54   7.7386      0.00     0.10       0.00     0.68

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.

123509    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.736    44.736    44.737
ecceobj         0.049     0.049     0.049
incobj          1.965     1.965     1.965
qmin           41.449    41.445    41.446
qmax           47.594    47.629    47.581
amean          44.435    44.433    44.432
amin           44.091    44.085    44.088
amax           44.801    44.801    44.801
emean           0.048     0.048     0.048
emin            0.033     0.033     0.033
emax            0.063     0.064     0.063
imean           2.722     2.722     2.722
imin            2.115     2.112     2.113
imax            3.291     3.291     3.291
excite_mean     0.068     0.068     0.068
fracstop        1.000     1.000     1.000
cjmean          3.101     3.101     3.101

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       181.2     181.4     181.4
kozaiamp        180.0     180.0     179.9