Orbit Fit and Astrometric record for 99CN119

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: 99CN119   
# Created Fri Oct 20 01:37:02 2017
# Orbit generated from Bernstein formalism
# Fitting   13 observations of   15
# Arc:  14.08y
# First observation: 1999/02/11
#  Last observation: 2013/03/13
Preliminary a, adot, b, bdot, g, gdot:
  -0.001333   0.022121   0.000016  -0.000305   0.024398   0.000000
# Chi-squared of fit:    20.91 DOF:   20 RMS:  0.22
# Min/Max residuals:    -0.58    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.542015E-05  2.128998E-02  3.715083E-07 -2.948977E-04  2.289206E-02 -8.418215E-04
# Covariance matrix:
  3.2925E-13 -1.0498E-13 -1.2281E-15  1.0129E-15 -2.9290E-13 -2.3592E-13
 -1.0498E-13  7.1315E-14  9.6211E-16 -8.6813E-16  1.3430E-13  2.0082E-13
 -1.2281E-15  9.6211E-16  1.9892E-13 -1.7486E-14  1.8218E-15  2.8617E-15
  1.0129E-15 -8.6813E-16 -1.7486E-14  3.4397E-15 -9.9412E-16 -2.7065E-15
 -2.9290E-13  1.3430E-13  1.8218E-15 -9.9412E-16  1.0828E-12  2.4091E-13
 -2.3592E-13  2.0082E-13  2.8617E-15 -2.7065E-15  2.4091E-13  6.2400E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.617105  129.691766   -0.218946    0.010218   -0.969000  2451220.806763
# Heliocentric elements and errors
Epoch:              2451220.5000  =  1999/02/11
Mean Anomaly:          234.96159 +/-     0.165
Argument of Peri:      271.60194 +/-     0.150
Long of Asc Node:      347.00219 +/-     0.005
Inclination:             1.00237 +/-     0.000
Eccentricity:         0.03954689 +/-    0.0001
Semi-Major Axis:     43.61315741 +/-    0.0072
Time of Perihelion: 2487760.2582 +/-      47.5
Perihelion:          41.88839258 +/-    0.0076
Aphelion:            45.33792224 +/-    0.0081
Period (y)              288.0279 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.67662297 +/-    0.0013
Ecliptic Y           34.21744598 +/-    0.0015
Ecliptic Z            0.47049509 +/-    0.0000
Ecliptic XDOT        -0.00189695 +/-    0.0000
Ecliptic YDOT        -0.00169434 +/-    0.0000
Ecliptic ZDOT        -0.00003635 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.64754955 +/-    0.0014
Geocenter to KBO     43.68327545 +/-    0.0020
# Hcoef:  7.73

The following table shows the complete astrometric record for 99CN119. 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 (99CN119) followed by the observatory code and reference code for the source of the astrometry.

1999 02  11.30602  08 49 13.61   +18 25 05.4   24.1R 99CN119   568  Ca4178      
1999 02  11.38707  08 49 13.22   +18 25 06.5   24.1R 99CN119   568  Ca4178      
1999 02  18.43403  08 48 41.12   +18 27 10.7   24.1R 99CN119   568  Ca4178      
1999 02  18.44567  08 48 41.07   +18 27 10.9   24.1R 99CN119   568  Ca4178      
1999 12  30.63648  08 57 22.63   +17 51 04.1         99CN119   568  Ca8502      
1999 12  31.61208  08 57 18.89   +17 51 20.3         99CN119   568  Ca8502      
1999 12  31.63278  08 57 18.80   +17 51 20.3         99CN119   568  Ca8502      
2001 03  24.16111  08 56 25.38   +17 53 31.3   24.0R 99CN119   695  Cc7487      
2001 03  24.28410  08 56 25.03   +17 53 32.3         99CN119   695  Cc7487      
2005 03  09.23670  09 16 45.79   +16 21 09.0   23.4R 99CN119   695  Cn0133      
2005 03  09.31508  09 16 45.47   +16 21 10.4         99CN119   695  Cn0133      
2005 03  10.23678  09 16 41.95   +16 21 25.9         99CN119   695  Cn0133      
2013 03  12.14662  09 55 04.14   +13 02 38.1   23.3R 99CN119   695  C~0uco      
2013 03  12.20930  09 55 03.92   +13 02 40.1         99CN119   695  C~0uco      
2013 03  13.14064  09 55 00.16   +13 02 59.2         99CN119   695  C~0uco      

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    -0.15       0.00    -0.12
  2   0.0002     -5.64    -0.14      -0.43    -0.50
  3   0.0195   -479.01     0.11      -2.89    -0.09
  4   0.0195   -479.75     0.14      -2.89    -0.08
  5   0.8825   7266.36    -0.07     -59.84    -0.05
  6   0.8852   7210.49     0.07     -59.14     0.37
  7   0.8852   7209.25     0.05     -59.50     0.02
  8   2.1132   6439.41 (   0.74)   -145.52 (   1.09)
  9   2.1136   6434.33 (   0.54)   -145.94 (   0.81)
 10   6.0724  24906.46     0.14    -379.64     0.26
 11   6.0726  24901.58    -0.06    -379.70     0.28
 12   6.0751  24847.83    -0.07    -380.23     0.30
 13  14.0803  61954.46    -0.27    -898.81    -0.58
 14  14.0805  61950.42     0.06    -898.00     0.29
 15  14.0831  61887.01     0.21    -898.87    -0.08

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.

99CN119    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.738    43.759    43.716
ecceobj         0.037     0.037     0.038
incobj          1.000     1.000     1.000
qmin           41.443    41.438    41.424
qmax           46.367    46.385    46.334
amean          43.788    43.809    43.767
amin           43.448    43.468    43.432
amax           44.138    44.167    44.109
emean           0.034     0.034     0.034
emin            0.019     0.017     0.017
emax            0.051     0.051     0.051
imean           2.284     2.285     2.282
imin            1.539     1.543     1.536
imax            2.883     2.879     2.887
excite_mean     0.053     0.053     0.053
fracstop        1.000     1.000     1.000
cjmean          3.096     3.096     3.095

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       172.7     173.0     173.2
kozaiamp        179.9     180.0     179.9