Orbit Fit and Astrometric record for 19EO9

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: 19EO9     
# Created Wed Dec 25 02:11:01 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     27 observations of     27
# Arc:  12.29y
# First observation: 2006/12/21
#  Last observation: 2019/04/05
# Chi-squared of fit:   146.48 DOF:     48 RMS:  0.41
# Min/Max residuals:    -0.65    1.95
# Exact a, adot, b, bdot, g, gdot:
  1.609826E-05  2.288868E-02  5.899037E-07  7.034189E-04  2.355148E-02 -1.404916E-03
# Covariance matrix:
  4.8955E-13 -8.4275E-14  2.2208E-16 -1.3308E-15 -4.3804E-14 -1.5125E-13
 -8.4275E-14  5.3717E-13 -2.3007E-15  1.4916E-14  7.7984E-13  1.7952E-12
  2.2208E-16 -2.3007E-15  4.8368E-13 -4.1157E-14 -3.0741E-15 -7.8335E-15
 -1.3308E-15  1.4916E-14 -4.1157E-14  4.3358E-15  2.0814E-14  5.0517E-14
 -4.3804E-14  7.7984E-13 -3.0741E-15  2.0814E-14  1.2976E-12  2.5776E-12
 -1.5125E-13  1.7952E-12 -7.8335E-15  5.0517E-14  2.5776E-12  6.0581E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.270020  164.584903    0.955334    0.014460   -0.251095  2454091.086754
# Heliocentric elements and errors
Epoch:              2454090.5000  =  2006/12/21
Mean Anomaly:          293.71691 +/-     0.038
Argument of Peri:      136.70119 +/-     0.041
Long of Asc Node:      102.83140 +/-     0.002
Inclination:             3.73355 +/-     0.000
Eccentricity:         0.09044856 +/-    0.0001
Semi-Major Axis:     44.00669013 +/-    0.0067
Time of Perihelion: 2473723.0506 +/-      22.8
Perihelion:          40.02634845 +/-    0.0084
Aphelion:            47.98703181 +/-    0.0093
Period (y)              291.9351 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.85715149 +/-    0.0020
Ecliptic Y           12.25105941 +/-    0.0005
Ecliptic Z            2.42201385 +/-    0.0001
Ecliptic XDOT        -0.00054030 +/-    0.0000
Ecliptic YDOT        -0.00261365 +/-    0.0000
Ecliptic ZDOT         0.00007225 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.72313439 +/-    0.0019
Geocenter to KBO     42.46023675 +/-    0.0021
# Hcoef:  7.85

The following table shows the complete astrometric record for 19EO9. 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 (19EO9) followed by the observatory code and reference code for the source of the astrometry.

2006 12  21.586000 11 08 19.15   +09 05 05.2         19EO9     T09  C~8Mhh      
2006 12  21.589500 11 08 19.15   +09 05 05.3         19EO9     T09  C~8Mhh      
2006 12  21.619572 11 08 19.16   +09 05 05.3         19EO9     T09  C~8Mhh      
2018 02  11.654405 12 02 00.50   +03 47 41.5         19EO9     T09  C~8Mhh      
2018 03  18.584037 11 59 37.68   +04 04 28.3         19EO9     T09  C~8Mhh      
2018 03  18.600070 11 59 37.61   +04 04 28.9         19EO9     T09  C~8Mhh      
2018 04  24.379218 11 57 03.35   +04 20 16.8         19EO9     T09  C~8Mhh      
2018 04  24.37966  11 57 03.37   +04 20 16.8   23.4z 19EO9     T09  C~8Mhh      
2018 04  24.38261  11 57 03.33   +04 20 16.8   23.6z 19EO9     T09  C~8Mhh      
2018 04  24.38303  11 57 03.35   +04 20 16.8   23.6z 19EO9     T09  C~8Mhh      
2018 04  24.42024  11 57 03.19   +04 20 17.7   24.0z 19EO9     T09  C~8Mhh      
2018 04  24.42066  11 57 03.21   +04 20 17.7   24.0z 19EO9     T09  C~8Mhh      
2018 04  24.453254 11 57 03.09   +04 20 18.3         19EO9     T09  C~8Mhh      
2018 04  24.45369  11 57 03.10   +04 20 18.2   23.8z 19EO9     T09  C~8Mhh      
2018 04  24.50409  11 57 03.04   +04 20 18.8   23.3z 19EO9     T09  C~8Mhh      
2018 04  24.50452  11 57 03.06   +04 20 18.8   23.3z 19EO9     T09  C~8Mhh      
2019 02  05.55162  12 07 28.15   +03 13 04.4   24.0i 19EO9     T09  C~8Mhh      
2019 02  05.59805  12 07 28.02   +03 13 05.4   24.3i 19EO9     T09  C~8Mhh      
2019 02  05.62497  12 07 27.96   +03 13 06.0   24.3i 19EO9     T09  C~8Mhh      
2019 02  05.63843  12 07 27.90   +03 13 06.2   24.3i 19EO9     T09  C~8Mhh      
2019 02  28.574368 12 06 06.61   +03 23 17.0         19EO9     T09  C~8Mhh      
2019 03  03.51493  12 05 54.39   +03 24 43.0   24.3z 19EO9     T09  C~8Mhh      
2019 03  03.53922  12 05 54.32   +03 24 43.8   24.1z 19EO9     T09  C~8Mhh      
2019 03  03.63045  12 05 53.90   +03 24 46.8   23.8z 19EO9     T09  C~8Mhh      
2019 04  04.467836 12 03 33.01   +03 40 17.6         19EO9     T09  C~8Mhh      
2019 04  04.490926 12 03 32.91   +03 40 18.3         19EO9     T09  C~8Mhh      
2019 04  05.530772 12 03 28.38   +03 40 46.5         19EO9     T09  C~8Mhh      

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     0.04
     2   0.0000      0.00    -0.12       0.00     0.11
     3   0.0001      0.00     0.26       0.00    -0.14
     4  11.1432      0.00    -0.21       0.00    -0.21
     5  11.2389      0.00    -0.20       0.00    -0.06
     6  11.2389      0.00    -0.16       0.00     0.06
     7  11.3396      0.00    -0.47       0.00     0.13
     8  11.3396      0.00    -0.15       0.00     0.12
     9  11.3396      0.00    -0.59       0.00     0.06
    10  11.3396      0.00    -0.27       0.00     0.05
    11  11.3397      0.00    -0.65       0.00     0.22
    12  11.3397      0.00    -0.33       0.00     0.21
    13  11.3398      0.00    -0.36       0.00     0.17
    14  11.3398      0.00    -0.19       0.00     0.06
    15  11.3400      0.00     1.62       0.00    -0.33
    16  11.3400      0.00     1.95       0.00    -0.34
    17  12.1258      0.00    -0.09       0.00    -0.01
    18  12.1260      0.00     0.01       0.00    -0.08
    19  12.1260      0.00     0.30       0.00    -0.11
    20  12.1261      0.00    -0.00       0.00    -0.22
    21  12.1889      0.00     0.09       0.00     0.14
    22  12.1969      0.00    -0.20       0.00    -0.09
    23  12.1970      0.00     0.32       0.00    -0.01
    24  12.1972      0.00    -0.14       0.00     0.30
    25  12.2844      0.00    -0.14       0.00    -0.10
    26  12.2845      0.00    -0.10       0.00    -0.03
    27  12.2873      0.00    -0.13       0.00     0.09

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.

19EO9    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.722    43.721    43.722
ecceobj         0.084     0.084     0.084
incobj          3.730     3.730     3.730
qmin           39.607    39.608    39.607
qmax           48.500    48.504    48.501
amean          43.911    43.911    43.911
amin           43.563    43.556    43.557
amax           44.277    44.292    44.287
emean           0.077     0.077     0.077
emin            0.060     0.060     0.061
emax            0.095     0.095     0.095
imean           1.987     1.987     1.987
imin            1.167     1.167     1.167
imax            2.697     2.697     2.697
excite_mean     0.085     0.085     0.085
fracstop        1.000     1.000     1.000
cjmean          3.092     3.092     3.092

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       190.1     190.3     190.1
kozaiamp        180.0     180.0     180.0