Orbit Fit and Astrometric record for 126619

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: 126619    
# Created Sun Oct 22 01:36:30 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   31 observations of   32
# Arc:  14.10y
# First observation: 2002/02/06
#  Last observation: 2016/03/13
# Chi-squared of fit:   161.00 DOF:   56 RMS:  0.40
# Min/Max residuals:    -1.11    1.23
# Exact a, adot, b, bdot, g, gdot:
  1.802158E-05  3.135871E-02 -3.333156E-06 -8.968445E-03  2.668317E-02  2.903243E-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
    1.277416  163.229879    0.424119    0.019692   -0.886965  2452311.895373
# Heliocentric elements and errors
Epoch:              2452312.5000  =  2002/02/07
Mean Anomaly:            4.58504 +/-     0.000
Argument of Peri:      161.05173 +/-     0.000
Long of Asc Node:      346.95596 +/-     0.000
Inclination:            15.96093 +/-     0.000
Eccentricity:         0.47218605 +/-    0.0000
Semi-Major Axis:     71.95648023 +/-    0.0000
Time of Perihelion: 2449472.9889 +/-       0.0
Perihelion:          37.97963424 +/-    0.0000
Aphelion:           105.93332622 +/-    0.0000
Period (y)              610.3980 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.60004642 +/-    0.0000
Ecliptic Y           11.47757873 +/-    0.0000
Ecliptic Z            0.83536818 +/-    0.0000
Ecliptic XDOT        -0.00124167 +/-    0.0000
Ecliptic YDOT        -0.00298958 +/-    0.0000
Ecliptic ZDOT        -0.00091313 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.36654243 +/-    0.0000
Geocenter to KBO     37.47676748 +/-    0.0000
# Hcoef:  7.09

The following table shows the complete astrometric record for 126619. 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 (126619) followed by the observatory code and reference code for the source of the astrometry.

2002 02  06.39463  11 00 09.38   +07 46 12.0   22.1R 126619    695  Cf0336      
2002 02  06.49180  11 00 08.97   +07 46 14.5         126619    695  Cf0336      
2002 02  07.40380  11 00 04.98   +07 46 35.3         126619    695  Cf0336      
2002 03  08.50714  10 57 44.99   +07 58 31.9   22.0R 126619    568  Cf2718      
2002 03  08.56301  10 57 44.71   +07 58 33.4         126619    568  Cf2718      
2002 03  14.18637  10 57 17.07   +08 00 51.6         126619    696  Cf5529      
2002 03  14.20144  10 57 17.00   +08 00 52.2         126619    696  Cf5529      
2002 03  14.21684  10 57 16.91   +08 00 52.7         126619    696  Cf5529      
2002 03  15.06784  10 57 12.71   +08 01 12.9   22.2R 126619    950  Cf5529      
2002 03  15.10571  10 57 12.54   +08 01 13.8   22.6R 126619    950  Cf5529      
2002 03  15.42333  10 57 10.97   +08 01 21.9   21.9R 126619    662  Cf2718      
2002 03  15.48495  10 57 10.64   +08 01 22.4         126619    662  Cf2718      
2002 05  11.88531  10 53 57.88   +08 14 41.4         126619    950  Cf4730      
2002 05  11.93263  10 53 57.82   +08 14 41.4         126619    950  Cf4730      
2002 05  12.88467  10 53 56.74   +08 14 41.2         126619    950  Cf4730      
2002 05  12.94817  10 53 56.67   +08 14 41.2         126619    950  Cf4730      
2003 03  06.29360  11 03 51.58   +06 47 29.9   22.3R 126619    662  Ch6136      
2003 03  06.37551  11 03 51.14   +06 47 31.9         126619    662  Ch6136      
2003 03  07.34256  11 03 46.38   +06 47 58.9   21.7V 126619    291  Cq8154      
2003 04  07.23778  11 01 24.16   +06 59 41.9         126619    695  Ch6137      
2003 04  07.28870  11 01 23.94   +06 59 42.8         126619    695  Ch6137      
2004 03  19.18567  11 08 36.15   +05 43 17.5   23.5R 126619    688  Ck2152      
2004 03  19.27218  11 08 35.81   +05 43 20.2         126619    688  Ck2152      
2006 02  25.34946  11 21 55.13   +03 14 58.3   23.3R 126619    688  Cq6001      
2006 02  25.46845  11 21 54.59   +03 15 01.5         126619    688  Cq6001      
2008 05  03.23755  11 28 26.52   +01 23 20.5         126619    695  Cz0848      
2008 05  04.23391  11 28 23.93   +01 23 34.3         126619    695  Cz0848      
2015 04  14.05188  12 07 21.00   -06 21 27.5   24.0V 126619    W84  C~2JSX      
2015 04  14.13676  12 07 20.62   -06 21 25.3         126619    W84  C~2JSX      
2015 04  14.22171  12 07 20.26   -06 21 23.1         126619    W84  C~2JSX      
2016 03  13.25344  12 14 57.33   -07 36 48.4   23.8R 126619    G37  C~1ppi      
2016 03  13.30168  12 14 57.13   -07 36 47.2         126619    G37  C~1ppi      

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    -0.19       0.00     0.93
  2   0.0003      0.00     0.30       0.00    -0.12
  3   0.0028      0.00     0.19       0.00     0.08
  4   0.0824      0.00     0.15       0.00    -0.13
  5   0.0826      0.00     0.16       0.00    -0.01
  6   0.0980      0.00     0.61       0.00     0.04
  7   0.0980      0.00     0.68       0.00     0.28
  8   0.0981      0.00     0.48       0.00     0.40
  9   0.1004      0.00    -0.21       0.00     0.07
 10   0.1005      0.00     0.05       0.00     0.07
 11   0.1014      0.00    -0.33       0.00     0.57
 12   0.1015      0.00    -0.75       0.00    -0.39
 13   0.2587      0.00     0.21       0.00     0.00
 14   0.2588      0.00     0.20       0.00     0.01
 15   0.2614      0.00     0.14       0.00     0.06
 16   0.2616      0.00     0.20       0.00     0.10
 17   1.0757      0.00    -0.68       0.00     0.17
 18   1.0759      0.00    -1.11       0.00     0.09
 19   1.0786      0.00 (  -0.78)      0.00 (   2.59)
 20   1.1632      0.00     0.14       0.00     0.45
 21   1.1633      0.00    -0.05       0.00     0.40
 22   2.1130      0.00     0.05       0.00    -0.97
 23   2.1133      0.00     1.23       0.00    -0.38
 24   4.0519      0.00    -0.37       0.00    -0.65
 25   4.0522      0.00     0.07       0.00    -0.35
 26   6.2364      0.00    -0.31       0.00     0.01
 27   6.2391      0.00    -0.46       0.00    -0.05
 28  13.1818      0.00     0.20       0.00    -0.13
 29  13.1820      0.00     0.04       0.00    -0.11
 30  13.1823      0.00     0.18       0.00    -0.10
 31  14.0968      0.00    -0.03       0.00     0.26
 32  14.0969      0.00     0.31       0.00     0.38

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.

126619    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        70.989    70.990    70.989
ecceobj         0.465     0.465     0.465
incobj         16.003    16.003    16.003
qmin           36.451    36.464    36.434
qmax          108.773   108.750   109.027
amean          71.540    71.597    71.567
amin           70.422    70.457    70.429
amax           73.050    73.105    73.157
emean           0.472     0.472     0.473
emin            0.456     0.456     0.458
emax            0.490     0.490     0.492
imean          16.291    16.304    16.244
imin           15.224    15.262    15.206
imax           17.434    17.147    17.250
excite_mean     0.549     0.550     0.550
fracstop        1.000     1.000     1.000
cjmean          3.028     3.029     3.028

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       190.5     193.3     188.3
kozaiamp        180.0     180.0     180.0