Orbit Fit and Astrometric record for 04KK19

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: 04KK19    
# Created Mon Dec 10 02:08:34 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   24 observations of   24
# Arc:   5.82y
# First observation: 2004/05/24
#  Last observation: 2010/03/20
# Chi-squared of fit:    26.92 DOF:   42 RMS:  0.19
# Min/Max residuals:    -0.78    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.394867E-05  1.949648E-02  4.924821E-07  1.513705E-03  2.220179E-02  2.148384E-03
# Covariance matrix:
  1.6946E-13 -1.1831E-13  3.5881E-15 -6.4440E-15 -1.5970E-14 -7.2151E-13
 -1.1831E-13  2.2087E-13 -9.2763E-15  1.6380E-14  2.2611E-13  1.8332E-12
  3.5881E-15 -9.2763E-15  1.1716E-13 -2.7911E-14 -1.3330E-14 -8.5235E-14
 -6.4440E-15  1.6380E-14 -2.7911E-14  1.4787E-14  2.2824E-14  1.4978E-13
 -1.5970E-14  2.2611E-13 -1.3330E-14  2.2824E-14  7.9543E-13  2.5526E-12
 -7.2151E-13  1.8332E-12 -8.5235E-14  1.4978E-13  2.5526E-12  1.6762E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.619467 -129.996081   -0.239901   -0.010587   -0.983893  2453149.862313
# Heliocentric elements and errors
Epoch:              2453150.5000  =  2004/05/25
Mean Anomaly:          118.46590 +/-     0.055
Argument of Peri:      220.63041 +/-     0.047
Long of Asc Node:      238.04949 +/-     0.000
Inclination:             4.48506 +/-     0.000
Eccentricity:         0.14269281 +/-    0.0002
Semi-Major Axis:     42.53301046 +/-    0.0047
Time of Perihelion: 2419809.5128 +/-      16.4
Perihelion:          36.46385566 +/-    0.0082
Aphelion:            48.60216526 +/-    0.0089
Period (y)              277.3942 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.40009589 +/-    0.0012
Ecliptic Y          -35.41021669 +/-    0.0014
Ecliptic Z           -0.48691474 +/-    0.0000
Ecliptic XDOT         0.00166762 +/-    0.0000
Ecliptic YDOT        -0.00175676 +/-    0.0000
Ecliptic ZDOT         0.00018391 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.02694189 +/-    0.0013
Geocenter to KBO     45.04138820 +/-    0.0018
# Hcoef:  7.46

The following table shows the complete astrometric record for 04KK19. 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 (04KK19) followed by the observatory code and reference code for the source of the astrometry.

2004 05  24.36157  15 09 32.10   -18 20 19.4   24.4g 04KK19    568  C~0WzG      
2004 05  24.38473  15 09 31.99   -18 20 19.1   24.1g 04KK19    568  C~0WzG      
2004 05  24.40911  15 09 31.89   -18 20 18.7   24.4g 04KK19    568  C~0WzG      
2004 05  25.37047  15 09 27.71   -18 20 00.8   24.1g 04KK19    568  C~0WzG      
2004 06  10.28543  15 08 22.61   -18 15 21.4   23.6i 04KK19    568  C~0WzG      
2004 06  10.35822  15 08 22.33   -18 15 20.5   23.5i 04KK19    568  C~0WzG      
2004 06  10.42443  15 08 22.08   -18 15 19.2   23.7i 04KK19    568  C~0WzG      
2005 05  14.38648  15 14 55.90   -18 36 16.2   23.6r 04KK19    568  C~0WzG      
2005 05  14.42021  15 14 55.74   -18 36 15.7   23.2r 04KK19    568  C~0WzG      
2005 05  14.45900  15 14 55.55   -18 36 14.8   23.5r 04KK19    568  C~0WzG      
2005 05  17.35617  15 14 42.51   -18 35 22.4   23.7r 04KK19    568  C~0WzG      
2005 07  10.23402  15 11 30.90   -18 21 46.1         04KK19    675  C~0WzG      
2005 07  10.26659  15 11 30.84   -18 21 46.0         04KK19    675  C~0WzG      
2005 07  11.23497  15 11 28.92   -18 21 37.0   23.4R 04KK19    675  C~0WzG      
2006 05  26.37942  15 18 41.33   -18 45 04.4   23.7r 04KK19    568  C~0WzG      
2006 05  26.41289  15 18 41.17   -18 45 03.7   23.8r 04KK19    568  C~0WzG      
2006 05  26.44633  15 18 41.03   -18 45 03.1   23.5r 04KK19    568  C~0WzG      
2006 05  27.45682  15 18 36.59   -18 44 45.5         04KK19    568  C~0WzG      
2009 06  22.22693  15 30 41.03   -19 12 28.0         04KK19    695  C~0WzG      
2009 06  22.29606  15 30 40.79   -19 12 27.3         04KK19    695  C~0WzG      
2010 03  20.45556  15 41 19.40   -19 44 42.0         04KK19    675  C~0WzG      
2010 03  20.46061  15 41 19.41   -19 44 41.8         04KK19    675  C~0WzG      
2010 03  20.49355  15 41 19.32   -19 44 41.9         04KK19    675  C~0WzG      
2010 03  20.52363  15 41 19.25   -19 44 41.3         04KK19    675  C~0WzG      

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     0.02       0.00     0.12
  2   0.0001      0.00    -0.08       0.00    -0.01
  3   0.0001      0.00     0.04       0.00    -0.06
  4   0.0028      0.00     0.06       0.00     0.13
  5   0.0463      0.00    -0.17       0.00     0.28
  6   0.0465      0.00    -0.16       0.00    -0.02
  7   0.0467      0.00    -0.08       0.00     0.19
  8   0.9720      0.00     0.04       0.00    -0.04
  9   0.9721      0.00    -0.03       0.00    -0.16
 10   0.9722      0.00    -0.21       0.00     0.03
 11   0.9801      0.00     0.01       0.00    -0.78
 12   1.1276      0.00     0.23       0.00     0.04
 13   1.1277      0.00     0.34       0.00    -0.17
 14   1.1304      0.00     0.15       0.00    -0.12
 15   2.0042      0.00     0.07       0.00     0.08
 16   2.0042      0.00    -0.08       0.00     0.19
 17   2.0043      0.00     0.06       0.00     0.20
 18   2.0071      0.00    -0.18       0.00     0.02
 19   5.0783      0.00    -0.16       0.00     0.34
 20   5.0785      0.00    -0.06       0.00     0.11
 21   5.8209      0.00    -0.01       0.00    -0.14
 22   5.8209      0.00     0.30       0.00     0.03
 23   5.8210      0.00    -0.02       0.00    -0.31
 24   5.8211      0.00    -0.13       0.00     0.06

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.

04KK19    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        42.155    42.155    42.155
ecceobj         0.146     0.146     0.146
incobj          4.503     4.503     4.503
qmin           35.939    34.882    35.940
qmax           49.323    50.392    49.322
amean          42.324    42.377    42.234
amin           41.815    41.776    41.825
amax           42.883    42.918    42.852
emean           0.126     0.138     0.109
emin            0.090     0.091     0.079
emax            0.151     0.178     0.151
imean           8.117     8.500     8.062
imin            5.626     4.745     5.626
imax           10.281    11.002    10.261
excite_mean     0.190     0.203     0.178
fracstop        1.000     1.000     1.000
cjmean          3.039     3.032     3.043

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       178.0     178.9     185.2
kozaiamp        179.9     179.9     180.0