Orbit Fit and Astrometric record for 126155

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: 126155    
# Created Mon Dec 18 02:36:32 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   24 observations of   24
# Arc:   6.72y
# First observation: 2001/12/20
#  Last observation: 2008/09/09
# Chi-squared of fit:    96.26 DOF:   42 RMS:  0.35
# Min/Max residuals:    -1.23    0.55
# Exact a, adot, b, bdot, g, gdot:
  1.971738E-05  4.902454E-02 -2.022940E-06 -1.816164E-03  3.667478E-02 -3.982259E-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
    5.749959   70.424972   -0.302555    0.093110   -0.925608  2452263.709583
# Heliocentric elements and errors
Epoch:              2452264.5000  =  2001/12/21
Mean Anomaly:          350.85685 +/-     0.000
Argument of Peri:      129.05171 +/-     0.000
Long of Asc Node:      319.56606 +/-     0.000
Inclination:             5.97093 +/-     0.000
Eccentricity:         0.30007767 +/-    0.0000
Semi-Major Axis:     39.85079364 +/-    0.0000
Time of Perihelion: 2454598.2125 +/-       0.0
Perihelion:          27.89246037 +/-    0.0000
Aphelion:            51.80912690 +/-    0.0000
Period (y)              251.5728 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            9.11724264 +/-    0.0000
Ecliptic Y           26.54517590 +/-    0.0000
Ecliptic Z            2.73173104 +/-    0.0000
Ecliptic XDOT        -0.00355139 +/-    0.0000
Ecliptic YDOT         0.00096014 +/-    0.0000
Ecliptic ZDOT        -0.00016447 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.19991370 +/-    0.0000
Geocenter to KBO     27.26678663 +/-    0.0000
# Hcoef:  7.27

The following table shows the complete astrometric record for 126155. 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 (126155) followed by the observatory code and reference code for the source of the astrometry.

2001 12  20.20884  04 31 31.90   +27 41 55.2   21.4  126155    675  Cf2450      
2001 12  20.28552  04 31 31.23   +27 41 53.7   21.4  126155    675  Cf2450      
2001 12  20.34837  04 31 30.80   +27 41 51.8   21.4  126155    675  Cf2450      
2002 02  06.11446  04 27 41.72   +27 26 17.3   21.7R 126155    675  Cf2450      
2002 02  06.14429  04 27 41.67   +27 26 16.8   21.7R 126155    675  Cf2450      
2002 02  06.17256  04 27 41.64   +27 26 16.5   21.7R 126155    675  Cf2450      
2002 02  06.19942  04 27 41.58   +27 26 16.0   21.7R 126155    675  Cf2450      
2002 03  04.13935  04 27 55.19   +27 21 00.6   21.9R 126155    675  Cf2450      
2002 03  04.18093  04 27 55.24   +27 21 00.6   22.0R 126155    675  Cf2450      
2002 03  04.22197  04 27 55.34   +27 21 00.1   21.5R 126155    675  Cf2450      
2002 03  04.26073  04 27 55.48   +27 20 59.8   21.6R 126155    675  Cf2450      
2002 11  06.53353  04 49 44.50   +28 07 57.3   21.6R 126155    568  Cl8355      
2002 11  28.28258  04 47 06.82   +28 04 43.3   21.4R 126155    695  Cg7925      
2002 11  28.34229  04 47 06.36   +28 04 42.6   21.4R 126155    695  Cg7925      
2002 11  30.50390  04 46 49.53   +28 04 15.1   21.5R 126155    568  Cg7925      
2002 12  01.45396  04 46 42.11   +28 04 02.6         126155    568  Cg7925      
2003 12  04.47554  04 59 13.44   +28 15 32.4   21.5R 126155    568  Ck0678      
2003 12  04.51677  04 59 13.10   +28 15 31.9         126155    568  Ck0678      
2006 01  28.12555  05 18 46.20   +28 15 46.0   20.7R 126155    688  Cq1693      
2006 01  28.20875  05 18 45.79   +28 15 44.2         126155    688  Cq1693      
2008 09  09.14615  06 07 28.01   +27 57 45.1   24.4R 126155    250  S~06HD      
2008 09  09.15240  06 07 28.02   +27 57 45.0         126155    250  S~06HD      
2008 09  09.15865  06 07 28.06   +27 57 45.2         126155    250  S~06HD      
2008 09  09.16490  06 07 28.09   +27 57 45.2         126155    250  S~06HD      

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     0.18       0.00     0.29
  2   0.0002      0.00    -1.23       0.00     0.33
  3   0.0004      0.00    -0.75       0.00    -0.31
  4   0.1312      0.00     0.14       0.00    -0.28
  5   0.1312      0.00     0.15       0.00    -0.30
  6   0.1313      0.00     0.42       0.00    -0.14
  7   0.1314      0.00     0.21       0.00    -0.20
  8   0.2024      0.00     0.48       0.00     0.21
  9   0.2025      0.00    -0.34       0.00     0.55
 10   0.2026      0.00    -0.41       0.00     0.39
 11   0.2027      0.00     0.19       0.00     0.42
 12   0.8797      0.00     0.09       0.00    -0.38
 13   0.9393      0.00     0.37       0.00    -0.02
 14   0.9394      0.00     0.53       0.00     0.01
 15   0.9454      0.00     0.45       0.00     0.00
 16   0.9480      0.00     0.33       0.00     0.03
 17   1.9556      0.00     0.00       0.00    -0.15
 18   1.9557      0.00    -0.15       0.00    -0.17
 19   4.1065      0.00    -0.04       0.00    -0.01
 20   4.1068      0.00    -0.18       0.00    -0.60
 21   6.7213      0.00    -0.13       0.00     0.25
 22   6.7213      0.00    -0.39       0.00     0.11
 23   6.7213      0.00    -0.20       0.00     0.27
 24   6.7213      0.00    -0.15       0.00     0.22

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.

126155    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.818    39.818    39.818
ecceobj         0.299     0.299     0.299
incobj          5.975     5.975     5.975
qmin           27.390    27.388    27.389
qmax           52.140    52.114    52.118
amean          39.455    39.455    39.455
amin           39.004    39.004    39.004
amax           40.019    40.019    40.018
emean           0.288     0.288     0.288
emin            0.269     0.269     0.269
emax            0.305     0.305     0.305
imean           7.500     7.500     7.500
imin            6.743     6.742     6.743
imax            8.291     8.291     8.290
excite_mean     0.316     0.316     0.316
fracstop        1.000     1.000     1.000
cjmean          2.936     2.936     2.936

libcent 0       179.6     179.6     179.8
libamp  0        78.0      77.8      77.9
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       181.4     181.3     181.4
kozaiamp        180.0     180.0     180.0