Orbit Fit and Astrometric record for 99CN153

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: 99CN153   
# Created Fri Mar 29 01:09:53 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     19 observations of     19
# Arc:   7.05y
# First observation: 1999/02/11
#  Last observation: 2006/03/02
# Chi-squared of fit:    51.71 DOF:     32 RMS:  0.29
# Min/Max residuals:    -0.67    0.71
# Exact a, adot, b, bdot, g, gdot:
  1.451121E-05  2.247986E-02  2.487915E-06  2.930832E-03  2.368476E-02  2.650330E-03
# Covariance matrix:
  4.3336E-13  7.0163E-15 -7.7992E-15  1.3132E-14  4.3208E-13  5.9744E-13
  7.0163E-15  4.3645E-13 -3.6317E-14  6.0484E-14  4.5869E-13  2.8744E-12
 -7.7992E-15 -3.6317E-14  1.4548E-13 -3.2568E-14 -4.5968E-14 -2.5247E-13
  1.3132E-14  6.0484E-14 -3.2568E-14  2.1501E-14  7.6753E-14  4.2066E-13
  4.3208E-13  4.5869E-13 -4.5968E-14  7.6753E-14  1.0376E-12  3.6111E-12
  5.9744E-13  2.8744E-12 -2.5247E-13  4.2066E-13  3.6111E-12  1.9958E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.079486  152.695933    0.175322   -0.001580   -0.977930  2451220.913553
# Heliocentric elements and errors
Epoch:              2451220.5000  =  1999/02/11
Mean Anomaly:           77.89604 +/-     0.034
Argument of Peri:      268.33530 +/-     0.048
Long of Asc Node:      153.05256 +/-     0.000
Inclination:             7.44504 +/-     0.000
Eccentricity:         0.11500809 +/-    0.0002
Semi-Major Axis:     43.67749941 +/-    0.0052
Time of Perihelion: 2428406.6838 +/-      10.7
Perihelion:          38.65423341 +/-    0.0095
Aphelion:            48.70076541 +/-    0.0101
Period (y)              288.6655 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -38.29765575 +/-    0.0016
Ecliptic Y           19.97130850 +/-    0.0008
Ecliptic Z           -0.05846682 +/-    0.0000
Ecliptic XDOT        -0.00146634 +/-    0.0000
Ecliptic YDOT        -0.00215929 +/-    0.0000
Ecliptic ZDOT         0.00033837 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.19213691 +/-    0.0015
Geocenter to KBO     42.22120146 +/-    0.0018
# Hcoef:  7.70

The following table shows the complete astrometric record for 99CN153. 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 (99CN153) followed by the observatory code and reference code for the source of the astrometry.

1999 02  11.41281  10 18 30.55   +10 26 21.2   23.7R 99CN153   568  Ca4208      
1999 02  11.49065  10 18 30.18   +10 26 23.8   23.7R 99CN153   568  Ca4208      
1999 03  08.45703  10 16 38.18   +10 37 42.8   23.7R 99CN153   568  Ca4208      
1999 03  08.48726  10 16 38.07   +10 37 43.6   23.7R 99CN153   568  Ca4208      
1999 04  08.34821  10 14 43.29   +10 49 26.0   23.8R 99CN153   568  Ca4507      
1999 04  08.38444  10 14 43.18   +10 49 26.4   23.8R 99CN153   568  Ca4507      
2000 04  23.254927 10 19 11.36   +10 35 16.9         99CN153   568  C~5H3X      
2000 04  23.342508 10 19 11.20   +10 35 17.8         99CN153   568  C~5H3X      
2000 04  24.239864 10 19 09.64   +10 35 27.8         99CN153   568  C~5H3X      
2000 04  24.387073 10 19 09.36   +10 35 29.7         99CN153   568  C~5H3X      
2000 05  05.271028 10 18 55.53   +10 37 05.6         99CN153   568  C~5H3X      
2000 05  05.317455 10 18 55.47   +10 37 06.0         99CN153   568  C~5H3X      
2001 03  24.20836  10 25 43.11   +10 07 42.7   23.6R 99CN153   695  C~5H3X      
2001 03  24.33110  10 25 42.63   +10 07 45.6         99CN153   695  C~5H3X      
2005 12  01.420804 10 55 49.87   +07 55 55.7         99CN153   695  C~5H3X      
2005 12  01.497672 10 55 49.95   +07 55 56.0         99CN153   695  C~5H3X      
2005 12  02.417677 10 55 50.85   +07 55 53.1         99CN153   695  C~5H3X      
2006 03  02.435810 10 52 13.92   +08 22 10.1         99CN153   695  C~5H3X      
2006 03  02.487830 10 52 13.73   +08 22 10.7         99CN153   695  C~5H3X      

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     0.06       0.00    -0.14
     2   0.0002      0.00    -0.20       0.00     0.36
     3   0.0686      0.00     0.35       0.00     0.11
     4   0.0687      0.00     0.71       0.00     0.12
     5   0.1531      0.00    -0.07       0.00    -0.21
     6   0.1532      0.00    -0.12       0.00    -0.46
     7   1.1960      0.00    -0.30       0.00     0.21
     8   1.1962      0.00    -0.22       0.00     0.07
     9   1.1987      0.00    -0.02       0.00    -0.34
    10   1.1991      0.00    -0.25       0.00    -0.11
    11   1.2289      0.00    -0.16       0.00     0.02
    12   1.2290      0.00    -0.44       0.00     0.14
    13   2.1131      0.00     0.38       0.00     0.13
    14   2.1134      0.00     0.35       0.00     0.13
    15   6.8036      0.00    -0.15       0.00    -0.12
    16   6.8038      0.00    -0.07       0.00     0.41
    17   6.8063      0.00    -0.30       0.00     0.14
    18   7.0528      0.00    -0.07       0.00     0.21
    19   7.0529      0.00     0.54       0.00    -0.67

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.

99CN153    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.791    43.791    43.791
ecceobj         0.116     0.116     0.116
incobj          7.438     7.438     7.438
qmin           37.491    37.417    37.476
qmax           50.675    50.732    50.801
amean          43.924    43.924    43.923
amin           43.544    43.553    43.547
amax           44.349    44.332    44.346
emean           0.125     0.125     0.125
emin            0.106     0.106     0.106
emax            0.144     0.145     0.146
imean           7.248     7.248     7.248
imin            6.273     6.274     6.273
imax            8.181     8.174     8.184
excite_mean     0.178     0.178     0.178
fracstop        1.000     1.000     1.000
cjmean          3.062     3.062     3.062

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       178.3     178.3     178.2
kozaiamp        179.9     180.0     180.0