Orbit Fit and Astrometric record for 148209

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: 148209    
# Created Sun Dec 21 02:37:28 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   54 observations of   54
# Arc:   8.88y
# First observation: 2000/02/06
#  Last observation: 2008/12/22
# Chi-squared of fit:   166.00 DOF:  102 RMS:  0.31
# Min/Max residuals:    -0.62    1.30
# Exact a, adot, b, bdot, g, gdot:
  1.518316E-05  1.895985E-02  6.248652E-06  7.875873E-03  1.932026E-02  8.449519E-03
# 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
    2.934509  135.134493   -0.035916    0.050390   -0.987172  2451580.807113
# Heliocentric elements and errors
Epoch:              2451580.5000  =  2000/02/06
Mean Anomaly:            3.68794 +/-     0.000
Argument of Peri:      316.50692 +/-     0.000
Long of Asc Node:      128.27855 +/-     0.000
Inclination:            22.75696 +/-     0.000
Eccentricity:         0.80544663 +/-    0.0000
Semi-Major Axis:    226.34085639 +/-    0.0000
Time of Perihelion: 2438838.8786 +/-       0.0
Perihelion:          44.03537547 +/-    0.0000
Aphelion:           408.64633731 +/-    0.0000
Period (y)             3405.2785 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -37.35645909 +/-    0.0000
Ecliptic Y           37.13967099 +/-    0.0000
Ecliptic Z            2.65011464 +/-    0.0000
Ecliptic XDOT        -0.00270810 +/-    0.0000
Ecliptic YDOT        -0.00109390 +/-    0.0000
Ecliptic ZDOT         0.00117602 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   52.74320186 +/-    0.0000
Geocenter to KBO     51.75880873 +/-    0.0000
# Hcoef:  6.10

The following table shows the complete astrometric record for 148209. 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 (148209) followed by the observatory code and reference code for the source of the astrometry.

2000 02  06.30637  09 14 02.39   +19 05 58.7   22.5R 148209    695  Cb1115      
2000 02  06.43541  09 14 01.90   +19 06 01.4         148209    695  Cb1115      
2000 02  27.12907  09 12 44.37   +19 13 04.6   23.0R 148209    695  Cb1115      
2000 02  27.22612  09 12 43.98   +19 13 06.3         148209    695  Cb1115      
2000 03  28.38346  09 11 17.68   +19 20 37.4         148209    568  Cb2242      
2000 03  28.40927  09 11 17.63   +19 20 37.6         148209    568  Cb2242      
2000 03  28.43164  09 11 17.59   +19 20 37.9         148209    568  Cb2242      
2000 03  29.23055  09 11 15.99   +19 20 46.3         148209    568  Cb2242      
2000 03  29.25196  09 11 15.95   +19 20 46.5   23.1R 148209    568  Cb2242      
2000 03  29.27248  09 11 15.91   +19 20 46.7   23.4R 148209    568  Cb2242      
2000 11  24.30080  09 22 07.39   +18 49 14.6         148209    809  Cc7839      
2000 11  25.30941  09 22 06.97   +18 49 25.1         148209    809  Cc7839      
2000 11  27.48283  09 22 05.77   +18 49 49.1   23.5R 148209    675  Cc7839      
2000 11  27.54557  09 22 05.73   +18 49 49.1   23.7R 148209    675  Cc7839      
2000 11  28.48968  09 22 05.11   +18 49 59.8   24.1R 148209    675  Cc7839      
2000 11  28.52381  09 22 05.08   +18 50 00.3   23.6R 148209    675  Cc7839      
2000 12  17.45692  09 21 38.68   +18 54 34.5   23.0R 148209    695  Cc7839      
2000 12  17.49240  09 21 38.62   +18 54 34.9   23.2R 148209    695  Cc7839      
2000 12  17.53331  09 21 38.54   +18 54 35.9   23.4R 148209    695  Cc7839      
2000 12  18.43274  09 21 36.63   +18 54 51.1   23.0R 148209    695  Cc7839      
2000 12  18.50613  09 21 36.52   +18 54 52.2   22.8R 148209    695  Cc7839      
2000 12  27.42094  09 21 15.164  +18 57 37.09  23.3R 148209    568  Cl4103      
2000 12  28.41398  09 21 12.509  +18 57 56.47        148209    568  Cl4103      
2001 01  20.39079  09 19 58.51   +19 06 04.4   23.1R 148209    675  Cc7839      
2001 01  20.39910  09 19 58.46   +19 06 04.6         148209    675  Cc7839      
2001 01  20.46716  09 19 58.24   +19 06 06.2   23.1R 148209    675  Cc7839      
2001 02  15.99209  09 18 17.96   +19 15 46.4   23.7R 148209    950  Cc7839      
2001 02  16.03317  09 18 17.80   +19 15 47.2   23.4R 148209    950  Cc7839      
2001 02  16.08746  09 18 17.59   +19 15 48.4   23.5R 148209    950  Cc7839      
2001 02  23.15703  09 17 51.48   +19 18 11.2   23.3R 148209    309  Cc7839      
2001 02  24.12793  09 17 47.96   +19 18 30.1         148209    309  Cc7839      
2001 02  24.24770  09 17 47.52   +19 18 32.4         148209    309  Cc7839      
2001 02  25.38156  09 17 43.48   +19 18 54.0   23.0R 148209    568  Cd0809      
2001 02  25.42712  09 17 43.32   +19 18 54.8         148209    568  Cd0809      
2001 03  24.14084  09 16 22.32   +19 25 57.2   23.2R 148209    695  Cc7839      
2001 03  24.31582  09 16 21.88   +19 25 59.3         148209    695  Cc7839      
2001 03  29.14814  09 16 11.17   +19 26 53.5   23.5R 148209    695  Cc7839      
2001 03  30.14350  09 16 09.16   +19 27 03.6         148209    695  Cc7839      
2001 03  31.13533  09 16 07.21   +19 27 13.8   23.5R 148209    695  Cc7839      
2001 12  12.15628  09 26 35.96   +18 58 23.1         148209    950  Ce3129      
2001 12  12.19915  09 26 35.90   +18 58 23.8         148209    950  Ce3129      
2001 12  12.23953  09 26 35.84   +18 58 24.5   23.4R 148209    950  Ce3129      
2001 12  13.16493  09 26 34.33   +18 58 39.2   23.4R 148209    950  Ce3129      
2001 12  13.20038  09 26 34.28   +18 58 39.7         148209    950  Ce3129      
2001 12  17.29862  09 26 26.93   +18 59 48.0   20.3  148209    304  Ce8743      
2001 12  17.31714  09 26 26.91   +18 59 48.7         148209    304  Ce8743      
2002 02  09.16317  09 23 36.07   +19 18 45.5         148209    304  Ce8743      
2002 02  09.21371  09 23 35.88   +19 18 46.4   23.4R 148209    304  Ce8743      
2002 02  14.16733  09 23 17.03   +19 20 33.1   21.3R 148209    304   f1711      
2002 02  14.19102  09 23 16.94   +19 20 33.5         148209    304   f1711      
2006 12  21.38351  09 49 09.12   +19 19 52.0   24.1R 148209    695  Ct5419      
2006 12  21.52397  09 49 08.82   +19 19 55.6         148209    695  Ct5419      
2008 12  22.41386  09 57 41.36   +19 24 49.2   22.6r 148209    695  C~0hmQ      
2008 12  22.50689  09 57 41.20   +19 24 51.0   22.4r 148209    695  C~0hmQ      

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    -0.07       0.00     0.79
  2   0.0004      0.00     0.38       0.00    -0.09
  3   0.0570      0.00     0.42       0.00    -0.05
  4   0.0573      0.00    -0.22       0.00    -0.18
  5   0.1398      0.00     0.02       0.00    -0.11
  6   0.1399      0.00     0.09       0.00    -0.18
  7   0.1400      0.00     0.19       0.00    -0.11
  8   0.1422      0.00     0.08       0.00    -0.07
  9   0.1422      0.00     0.14       0.00    -0.10
 10   0.1423      0.00     0.17       0.00    -0.11
 11   0.7994      0.00     0.01       0.00     0.23
 12   0.8022      0.00     0.06       0.00     0.29
 13   0.8081      0.00    -0.21       0.00     0.80
 14   0.8083      0.00    -0.16       0.00     0.09
 15   0.8109      0.00    -0.06       0.00     0.00
 16   0.8110      0.00    -0.12       0.00     0.10
 17   0.8628      0.00     0.17       0.00    -0.18
 18   0.8629      0.00     0.39       0.00    -0.39
 19   0.8630      0.00     0.49       0.00    -0.09
 20   0.8655      0.00    -0.15       0.00    -0.44
 21   0.8657      0.00     0.59       0.00    -0.62
 22   0.8901      0.00    -0.28       0.00    -0.24
 23   0.8928      0.00    -0.21       0.00    -0.23
 24   0.9557      0.00    -0.06       0.00     0.28
 25   0.9558      0.00    -0.35       0.00     0.30
 26   0.9560      0.00     0.11       0.00     0.39
 27   1.0286      0.00    -0.02       0.00    -0.09
 28   1.0287      0.00    -0.07       0.00    -0.14
 29   1.0288      0.00    -0.10       0.00    -0.07
 30   1.0482      0.00     0.05       0.00     0.10
 31   1.0508      0.00    -0.25       0.00     0.12
 32   1.0512      0.00    -0.28       0.00     0.11
 33   1.0543      0.00    -0.16       0.00     0.03
 34   1.0544      0.00    -0.08       0.00    -0.03
 35   1.1275      0.00    -0.05       0.00    -0.08
 36   1.1280      0.00    -0.28       0.00    -0.07
 37   1.1413      0.00    -0.46       0.00    -0.08
 38   1.1440      0.00    -0.24       0.00    -0.20
 39   1.1467      0.00    -0.17       0.00     0.14
 40   1.8476      0.00    -0.27       0.00     0.01
 41   1.8478      0.00    -0.11       0.00     0.03
 42   1.8479      0.00    -0.01       0.00     0.09
 43   1.8504      0.00    -0.21       0.00     0.05
 44   1.8505      0.00    -0.05       0.00    -0.02
 45   1.8617      0.00     0.03       0.00    -0.02
 46   1.8618      0.00     0.28       0.00     0.36
 47   2.0092      0.00     1.22       0.00     0.05
 48   2.0093      0.00     1.30       0.00    -0.16
 49   2.0229      0.00    -0.18       0.00     0.03
 50   2.0230      0.00    -0.17       0.00    -0.07
 51   6.8722      0.00     0.30       0.00    -0.04
 52   6.8726      0.00    -0.40       0.00     0.96
 53   8.8764      0.00     0.03       0.00    -0.47
 54   8.8767      0.00     0.05       0.00    -0.43

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.

148209    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       225.942   225.949   225.935
ecceobj         0.805     0.805     0.805
incobj         22.760    22.760    22.760
qmin           42.232    42.378    42.153
qmax          426.375   425.819   427.144
amean         222.994   223.065   223.001
amin          216.309   217.433   216.428
amax          235.241   234.968   235.609
emean           0.800     0.800     0.800
emin            0.791     0.791     0.791
emax            0.812     0.812     0.813
imean          21.183    21.191    21.105
imin           20.751    20.805    20.620
imax           21.535    21.601    21.535
excite_mean     0.878     0.878     0.878
fracstop        1.000     1.000     1.000
cjmean          3.179     3.180     3.179

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       325.9     328.0     326.0
kozaiamp          9.9      12.2       9.7