Orbit Fit and Astrometric record for 01ES24

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: 01ES24    
# Created Thu May 24 01:37:06 2012
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   14 observations of   14
# Arc:   1.04y
# First observation: 2001/03/01
#  Last observation: 2002/03/15
# Chi-squared of fit:    61.03 DOF:   22 RMS:  0.37
# Min/Max residuals:    -0.58    1.23
# Exact a, adot, b, bdot, g, gdot:
  1.333437E-05  1.980359E-02  1.285116E-06  9.353451E-04  2.202133E-02  8.482383E-04
# Covariance matrix:
  3.0335E-13  8.5631E-13 -1.1673E-16  5.3121E-14  9.6725E-13  6.0470E-11
  8.5631E-13  1.5914E-11 -3.8746E-15  7.2734E-13  1.2177E-11  8.3752E-10
 -1.1673E-16 -3.8746E-15  2.1734E-13 -2.3097E-13 -1.2433E-15 -1.8785E-13
  5.3121E-14  7.2734E-13 -2.3097E-13  5.4781E-13  5.9575E-13  3.9812E-11
  9.6725E-13  1.2177E-11 -1.2433E-15  5.9575E-13  1.0879E-11  6.7790E-10
  6.0470E-11  8.3752E-10 -1.8785E-13  3.9812E-11  6.7790E-10  4.5742E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.062034  159.470921   -0.024871    0.052920   -0.991410  2451969.588593
# Heliocentric elements and errors
Epoch:              2451970.5000  =  2001/03/02
Mean Anomaly:          131.50471 +/-     7.831
Argument of Peri:      271.23360 +/-     7.802
Long of Asc Node:      111.54030 +/-     0.023
Inclination:             4.03239 +/-     0.001
Eccentricity:         0.06505586 +/-    0.0063
Semi-Major Axis:     44.38759720 +/-    0.0266
Time of Perihelion: 2412512.9888 +/-    2349.8
Perihelion:          41.49992389 +/-    0.2801
Aphelion:            47.27527051 +/-    0.2805
Period (y)              295.7336 +/-      0.27
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -43.40053795 +/-    0.0064
Ecliptic Y           16.23138987 +/-    0.0024
Ecliptic Z            2.42572847 +/-    0.0004
Ecliptic XDOT        -0.00096455 +/-    0.0000
Ecliptic YDOT        -0.00226784 +/-    0.0000
Ecliptic ZDOT         0.00012194 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.39984993 +/-    0.0060
Geocenter to KBO     45.41051685 +/-    0.0068
# Hcoef:  7.45

The following table shows the complete astrometric record for 01ES24. 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 (01ES24) followed by the observatory code and reference code for the source of the astrometry.

2001 03  01.08785  10 48 50.78   +10 51 13.7   22.7R 01ES24    809  Cd0835      
2001 03  01.18100  10 48 50.36   +10 51 16.1         01ES24    809  Cd0835      
2001 03  01.25115  10 48 50.04   +10 51 18.1         01ES24    809  Cd0835      
2001 03  01.33235  10 48 49.70   +10 51 20.4         01ES24    809  Cd0835      
2001 03  02.10705  10 48 46.41   +10 51 40.4         01ES24    809  Cd0835      
2001 03  02.21393  10 48 46.07   +10 51 43.2         01ES24    809  Cd0835      
2001 03  26.14239  10 47 08.58   +11 01 19.3   24.8R 01ES24    695  Cd1711      
2001 03  26.24763  10 47 08.17   +11 01 21.4         01ES24    695  Cd1711      
2002 01  14.21747  10 55 59.15   +10 09 24.3   23.8R 01ES24    950  Cf2333      
2002 01  14.25042  10 55 59.07   +10 09 25.1         01ES24    950  Cf2333      
2002 01  14.28778  10 55 59.00   +10 09 25.6         01ES24    950  Cf2333      
2002 03  15.04494  10 52 14.55   +10 34 05.5         01ES24    950  Cf2333      
2002 03  15.08349  10 52 14.39   +10 34 06.5         01ES24    950  Cf2333      
2002 03  15.12137  10 52 14.25   +10 34 07.3         01ES24    950  Cf2333      

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    -0.17       0.00     1.01
  2   0.0003      0.00    -0.12       0.00    -0.25
  3   0.0004      0.00    -0.38       0.00    -0.08
  4   0.0007      0.00    -0.25       0.00     0.11
  5   0.0028      0.00    -0.58       0.00    -0.10
  6   0.0031      0.00     1.23       0.00    -0.09
  7   0.0686      0.00     0.18       0.00     0.31
  8   0.0689      0.00     0.08       0.00     0.16
  9   0.8737      0.00    -0.11       0.00     0.10
 10   0.8738      0.00    -0.02       0.00     0.26
 11   0.8739      0.00     0.38       0.00     0.04
 12   1.0375      0.00    -0.12       0.00    -0.14
 13   1.0376      0.00    -0.10       0.00    -0.08
 14   1.0377      0.00     0.16       0.00    -0.21

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.

01ES24    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.222    44.222    44.222
ecceobj         0.068     0.068     0.068
incobj          4.036     4.036     4.036
qmin           40.948    40.948    40.948
qmax           47.856    47.857    47.853
amean          44.383    44.383    44.382
amin           44.369    44.369    44.369
amax           44.403    44.403    44.403
emean           0.069     0.069     0.069
emin            0.060     0.060     0.060
emax            0.078     0.078     0.078
imean           2.598     2.598     2.598
imin            1.947     1.947     1.947
imax            3.259     3.259     3.259
excite_mean     0.083     0.083     0.083
fracstop        1.000     1.000     1.000
cjmean          3.098     3.098     3.098

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       174.0     174.0     174.1
kozaiamp        180.0     180.0     180.0