Orbit Fit and Astrometric record for 00PU29

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: 00PU29    
# Created Fri Mar 29 01:10:16 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     19 observations of     19
# Arc:  22.15y
# First observation: 1999/07/18
#  Last observation: 2021/09/12
# Chi-squared of fit:    47.92 DOF:     32 RMS:  0.28
# Min/Max residuals:    -0.59    0.52
# Exact a, adot, b, bdot, g, gdot:
  1.593759E-05  2.393174E-02  1.018215E-06  7.260919E-05  2.446613E-02 -3.216527E-04
# Covariance matrix:
  4.0265E-13 -2.5231E-13  9.5226E-16 -7.4513E-16  1.3254E-13 -4.2900E-13
 -2.5231E-13  2.5223E-13 -7.4267E-16  7.6683E-16  5.0495E-14  4.2566E-13
  9.5226E-16 -7.4267E-16  1.0311E-13 -5.5199E-15  5.6119E-16 -1.3006E-15
 -7.4513E-16  7.6683E-16 -5.5199E-15  1.0385E-15  1.8056E-16  1.2979E-15
  1.3254E-13  5.0495E-14  5.6119E-16  1.8056E-16  5.9155E-13  5.1132E-14
 -4.2900E-13  4.2566E-13 -1.3006E-15  1.2979E-15  5.1132E-14  7.2335E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.701982  -57.186611    0.138821    0.012069   -1.004709  2451377.929293
# Heliocentric elements and errors
Epoch:              2451378.5000  =  1999/07/19
Mean Anomaly:          311.08142 +/-     0.180
Argument of Peri:      126.58009 +/-     0.191
Long of Asc Node:      227.26737 +/-     0.006
Inclination:             0.70814 +/-     0.000
Eccentricity:         0.02596776 +/-    0.0001
Semi-Major Axis:     42.59080842 +/-    0.0055
Time of Perihelion: 2465174.1956 +/-      53.5
Perihelion:          41.48482070 +/-    0.0059
Aphelion:            43.69679613 +/-    0.0062
Period (y)              277.9598 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           22.58377181 +/-    0.0007
Ecliptic Y          -35.26647055 +/-    0.0011
Ecliptic Z            0.50082187 +/-    0.0000
Ecliptic XDOT         0.00222776 +/-    0.0000
Ecliptic YDOT         0.00149009 +/-    0.0000
Ecliptic ZDOT         0.00000773 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.88081385 +/-    0.0010
Geocenter to KBO     40.87287655 +/-    0.0013
# Hcoef:  8.09

The following table shows the complete astrometric record for 00PU29. 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 (00PU29) followed by the observatory code and reference code for the source of the astrometry.

1999 07  18.42855  20 19 42.98   -18 50 49.2   24.0R 00PU29    568  Cd3308      
1999 07  18.45584  20 19 42.84   -18 50 49.7         00PU29    568  Cd3308      
1999 07  18.48271  20 19 42.71   -18 50 50.0         00PU29    568  Cd3308      
2000 08  05.30669  20 23 49.59   -18 36 42.9         00PU29    568  Cb8005      
2000 08  05.35088  20 23 49.36   -18 36 43.5         00PU29    568  Cb8005      
2000 08  05.39945  20 23 49.13   -18 36 44.5         00PU29    568  Cb8005      
2000 08  06.29777  20 23 44.82   -18 36 59.0   23.7R 00PU29    568  Cb8005      
2000 08  06.34372  20 23 44.58   -18 36 59.9   23.6R 00PU29    568  Cb8005      
2000 08  06.38478  20 23 44.38   -18 37 00.8         00PU29    568  Cb8005      
2000 09  24.23730  20 20 42.37   -18 47 43.5   24.5R 00PU29    568  Cc0967      
2000 09  24.28652  20 20 42.27   -18 47 44.0   23.8R 00PU29    568  Cc0967      
2000 09  24.34498  20 20 42.17   -18 47 44.3   24.3R 00PU29    568  Cc0967      
2001 06  26.45863  20 32 33.52   -18 05 56.8         00PU29    568  Cd2824      
2001 06  26.48709  20 32 33.40   -18 05 57.3         00PU29    568  Cd2824      
2001 08  12.34189  20 28 53.68   -18 18 53.7         00PU29    568  Cd2824      
2001 08  12.37315  20 28 53.53   -18 18 54.3         00PU29    568  Cd2824      
2021 09  12.154420 22 15 16.742  -10 04 55.43  24.0G 00PU29    G37  C~552j      
2021 09  12.211720 22 15 16.490  -10 04 56.73        00PU29    G37  C~552j      
2021 09  12.268940 22 15 16.233  -10 04 58.19        00PU29    G37  C~552j      

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    -0.05       0.00    -0.22
     2   0.0001      0.00    -0.11       0.00    -0.28
     3   0.0001      0.00    -0.06       0.00    -0.15
     4   1.0510      0.00     0.22       0.00     0.03
     5   1.0511      0.00     0.03       0.00     0.18
     6   1.0513      0.00     0.17       0.00    -0.01
     7   1.0537      0.00     0.52       0.00     0.44
     8   1.0538      0.00     0.30       0.00     0.32
     9   1.0540      0.00     0.33       0.00     0.10
    10   1.1877      0.00    -0.40       0.00    -0.48
    11   1.1878      0.00    -0.31       0.00    -0.59
    12   1.1880      0.00     0.07       0.00    -0.45
    13   1.9412      0.00    -0.45       0.00     0.35
    14   1.9413      0.00    -0.49       0.00     0.26
    15   2.0696      0.00     0.12       0.00     0.31
    16   2.0697      0.00     0.12       0.00     0.24
    17  22.1539      0.00     0.02       0.00    -0.10
    18  22.1541      0.00     0.02       0.00     0.03
    19  22.1543      0.00    -0.05       0.00    -0.01

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.

00PU29    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.518    42.518    42.518
ecceobj         0.025     0.025     0.025
incobj          0.708     0.708     0.708
qmin           40.283    40.283    40.283
qmax           44.956    44.965    44.947
amean          42.533    42.533    42.533
amin           42.209    42.213    42.208
amax           42.872    42.871    42.871
emean           0.031     0.031     0.031
emin            0.007     0.006     0.007
emax            0.049     0.049     0.049
imean           2.974     2.974     2.974
imin            1.583     1.584     1.583
imax            3.826     3.826     3.826
excite_mean     0.061     0.061     0.061
fracstop        1.000     1.000     1.000
cjmean          3.079     3.079     3.079

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       188.0     187.8     188.0
kozaiamp        180.0     180.0     180.0