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 Sun Jun  7 01:08:06 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   21 observations of   21
# Arc:  19.83y
# First observation: 1999/02/11
#  Last observation: 2018/12/09
# Chi-squared of fit:    59.49 DOF:   36 RMS:  0.30
# Min/Max residuals:    -0.60    0.76
# Exact a, adot, b, bdot, g, gdot:
  1.601281E-05  2.128990E-02  1.294443E-06 -2.949720E-04  2.289067E-02 -8.420898E-04
# Covariance matrix:
  2.9649E-13 -7.7175E-14 -1.7264E-15  9.5786E-16 -2.4629E-13 -1.5520E-13
 -7.7175E-14  3.8782E-14  9.7876E-16 -5.4415E-16  1.3744E-13  8.8161E-14
 -1.7264E-15  9.7876E-16  1.8001E-13 -1.0952E-14  3.9686E-15  2.3095E-15
  9.5786E-16 -5.4415E-16 -1.0952E-14  1.1076E-15 -2.0755E-15 -1.2775E-15
 -2.4629E-13  1.3744E-13  3.9686E-15 -2.0755E-15  8.1280E-13  3.3687E-13
 -1.5520E-13  8.8161E-14  2.3095E-15 -1.2775E-15  3.3687E-13  2.0701E-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:          235.17104 +/-     0.146
Argument of Peri:      271.39864 +/-     0.133
Long of Asc Node:      346.99765 +/-     0.002
Inclination:             1.00256 +/-     0.000
Eccentricity:         0.03945538 +/-    0.0000
Semi-Major Axis:     43.62299168 +/-    0.0060
Time of Perihelion: 2487711.3897 +/-      45.0
Perihelion:          41.90182979 +/-    0.0062
Aphelion:            45.34415357 +/-    0.0066
Period (y)              288.1253 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.67833458 +/-    0.0011
Ecliptic Y           34.21946763 +/-    0.0013
Ecliptic Z            0.47056394 +/-    0.0000
Ecliptic XDOT        -0.00189704 +/-    0.0000
Ecliptic YDOT        -0.00169446 +/-    0.0000
Ecliptic ZDOT        -0.00003636 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.65021925 +/-    0.0012
Geocenter to KBO     43.68598587 +/-    0.0017
# Hcoef:  7.95

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      
2016 01  10.320804 10 13 40.91   +11 17 29.3         99CN119   W84  C~3i8v      
2016 01  10.321950 10 13 40.93   +11 17 29.5         99CN119   W84  C~3i8v      
2018 12  09.488810 10 28 42.68   +09 47 28.1   24.7r 99CN119   568  C~2rbJ      
2018 12  09.513060 10 28 42.67   +09 47 28.1   24.8r 99CN119   568  C~2rbJ      
2018 12  09.552920 10 28 42.65   +09 47 28.2   24.7r 99CN119   568  C~2rbJ      
2018 12  09.594080 10 28 42.63   +09 47 28.2   24.7r 99CN119   568  C~2rbJ      

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    -0.36       0.00    -0.23
  2   0.0002      0.00    -0.47       0.00    -0.60
  3   0.0195      0.00    -0.13       0.00    -0.26
  4   0.0195      0.00    -0.09       0.00    -0.26
  5   0.8825      0.00    -0.04       0.00    -0.22
  6   0.8852      0.00     0.21       0.00     0.14
  7   0.8852      0.00     0.09       0.00    -0.19
  8   2.1132      0.00     0.74       0.00     0.76
  9   2.1136      0.00     0.46       0.00     0.55
 10   6.0724      0.00    -0.00       0.00     0.17
 11   6.0726      0.00    -0.19       0.00     0.25
 12   6.0751      0.00    -0.20       0.00     0.27
 13  14.0803      0.00    -0.42       0.00    -0.41
 14  14.0805      0.00     0.16       0.00     0.27
 15  14.0831      0.00     0.17       0.00    -0.11
 16  16.9117      0.00    -0.01       0.00    -0.04
 17  16.9117      0.00     0.34       0.00     0.14
 18  19.8253      0.00    -0.01       0.00    -0.00
 19  19.8253      0.00    -0.03       0.00    -0.06
 20  19.8255      0.00    -0.09       0.00    -0.04
 21  19.8256      0.00    -0.14       0.00    -0.13

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        43.748    43.748    43.748
ecceobj         0.037     0.037     0.037
incobj          1.000     1.000     1.000
qmin           41.398    41.386    41.428
qmax           46.373    46.363    46.367
amean          43.798    43.798    43.798
amin           43.467    43.456    43.465
amax           44.154    44.149    44.145
emean           0.034     0.034     0.034
emin            0.017     0.017     0.017
emax            0.051     0.051     0.051
imean           2.285     2.285     2.285
imin            1.541     1.541     1.541
imax            2.880     2.880     2.881
excite_mean     0.053     0.053     0.053
fracstop        1.000     1.000     1.000
cjmean          3.096     3.096     3.096

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       172.9     172.8     172.9
kozaiamp        180.0     179.9     179.9