Orbit Fit and Astrometric record for 05PE23

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: 05PE23    
# Created Fri Nov  1 01:08:40 2024
# Orbit generated from Bernstein formalism
# Fitting     11 observations of     11
# Arc:   1.07d
# First observation: 2005/08/02
#  Last observation: 2005/08/03
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# Chi-squared of fit:     4.00 DOF:     18 RMS:  0.11
# Min/Max residuals:    -0.16    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.446181E-05  2.209879E-02  6.118589E-06  8.600126E-03  2.425508E-02  0.000000E+00
# Covariance matrix:
  4.4542E-11  6.7848E-08  2.3590E-13  3.2550E-10  1.2479E-08  0.0000E+00
  6.7848E-08  1.0393E-04  3.6095E-10  4.9786E-07  1.9091E-05  0.0000E+00
  2.3590E-13  3.6095E-10  1.6345E-13 -4.3312E-11  6.6340E-11  0.0000E+00
  3.2550E-10  4.9786E-07 -4.3312E-11  7.3134E-08  9.1520E-08  0.0000E+00
  1.2479E-08  1.9091E-05  6.6340E-11  9.1520E-08  3.5091E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  1.8777E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.562641  -20.320747    0.496265   -0.008622   -0.887233  2453585.019433
# Heliocentric elements and errors
Epoch:              2453580.5000  =  2005/07/29
Mean Anomaly:          329.03366 +/-   343.003
Argument of Peri:       30.53096 +/-    52.430
Long of Asc Node:      340.41234 +/-     0.593
Inclination:            21.31283 +/-     8.876
Eccentricity:         0.01821997 +/-    0.5819
Semi-Major Axis:     42.77974896 +/-   22.0980
Time of Perihelion: 2462371.5978 +/-  506134.7
Perihelion:          42.00030307 +/-   33.0214
Aphelion:            43.55919485 +/-   33.5559
Period (y)              279.8115 +/-    216.81
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.31640133 +/-    2.9857
Ecliptic Y          -15.09109898 +/-    1.1059
Ecliptic Z           -0.40457755 +/-    0.0312
Ecliptic XDOT         0.00087672 +/-    0.0015
Ecliptic YDOT         0.00232904 +/-    0.0010
Ecliptic ZDOT         0.00097074 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   42.11513226 +/-    2.8154
Geocenter to KBO     41.22846833 +/-    3.1841
# Hcoef: 10.48

The following table shows the complete astrometric record for 05PE23. 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 (05PE23) followed by the observatory code and reference code for the source of the astrometry.

2005 08  02.51869  22 45 47.59   -08 27 40.6         05PE23    568  Cq7105      
2005 08  02.52395  22 45 47.57   -08 27 40.4         05PE23    568  Cq7105      
2005 08  02.52919  22 45 47.54   -08 27 40.8   26.4R 05PE23    568  Cq7105      
2005 08  02.53442  22 45 47.53   -08 27 40.7         05PE23    568  Cq7105      
2005 08  02.53973  22 45 47.51   -08 27 41.0         05PE23    568  Cq7105      
2005 08  02.54495  22 45 47.47   -08 27 41.0         05PE23    568  Cq7105      
2005 08  03.49521  22 45 43.69   -08 27 59.3         05PE23    568  Cq7105      
2005 08  03.50044  22 45 43.66   -08 27 59.4         05PE23    568  Cq7105      
2005 08  03.54753  22 45 43.49   -08 28 00.4         05PE23    568  Cq7105      
2005 08  03.55799  22 45 43.43   -08 28 00.5         05PE23    568  Cq7105      
2005 08  03.58940  22 45 43.32   -08 28 01.2         05PE23    568  Cq7105      

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    -0.01       0.00    -0.11
     2   0.0000     -0.20     0.12       0.30     0.17
     3   0.0000     -0.76    -0.11       0.09    -0.06
     4   0.0000     -0.86     0.12       0.24     0.06
     5   0.0001     -1.25     0.06       0.08    -0.13
     6   0.0001     -1.80    -0.16       0.30     0.07
     7   0.0027    -60.64    -0.04       4.50     0.05
     8   0.0027    -61.09    -0.16       4.58     0.10
     9   0.0028    -63.81     0.12       4.60    -0.11
    10   0.0028    -64.67    -0.08       4.84     0.08
    11   0.0029    -66.44     0.15       4.81    -0.11

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.

05PE23    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0