Orbit Fit and Astrometric record for 00ST331

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: 00ST331   
# Created Fri Nov  1 01:08:02 2024
# Orbit generated from Bernstein formalism
# Fitting     10 observations of     10
# Arc:   1.14y
# First observation: 2000/09/23
#  Last observation: 2001/11/15
Preliminary a, adot, b, bdot, g, gdot:
   0.000001   0.029398  -0.000001   0.001265   0.027214   0.000000
# Chi-squared of fit:     4.29 DOF:     14 RMS:  0.12
# Min/Max residuals:    -0.21    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.704637E-05  2.908459E-02  1.162331E-07  1.250803E-03  2.697074E-02  5.424935E-05
# Covariance matrix:
  6.7341E-13  1.1444E-10  2.9667E-14  5.0371E-12  1.0206E-10  3.6721E-09
  1.1444E-10  3.2663E-08  7.9427E-12  1.4721E-09  2.7683E-08  1.1110E-06
  2.9667E-14  7.9427E-12  2.4720E-13  1.3404E-13  7.0698E-12  2.5441E-10
  5.0371E-12  1.4721E-09  1.3404E-13  6.7472E-11  1.2231E-09  5.1221E-08
  1.0206E-10  2.7683E-08  7.0698E-12  1.2231E-09  2.4387E-08  8.9855E-07
  3.6721E-09  1.1110E-06  2.5441E-10  5.1221E-08  8.9855E-07  3.9794E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.416387   59.301043    0.853901   -0.021950   -0.515874  2451810.957343
# Heliocentric elements and errors
Epoch:              2451810.5000  =  2000/09/23
Mean Anomaly:          351.19930 +/-    89.662
Argument of Peri:      326.47396 +/-   115.145
Long of Asc Node:      102.70100 +/-     0.213
Inclination:             3.38438 +/-     0.013
Eccentricity:         0.11849549 +/-    0.0405
Semi-Major Axis:     42.57853790 +/-    0.4972
Time of Perihelion: 2454291.3418 +/-   25275.0
Perihelion:          37.53317307 +/-    1.7779
Aphelion:            47.62390272 +/-    1.8105
Period (y)              277.8397 +/-      4.87
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.91481120 +/-    0.1095
Ecliptic Y           31.86576367 +/-    0.1844
Ecliptic Z           -1.56321478 +/-    0.0091
Ecliptic XDOT        -0.00254060 +/-    0.0003
Ecliptic YDOT         0.00152169 +/-    0.0006
Ecliptic ZDOT         0.00012678 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.60944349 +/-    0.1667
Geocenter to KBO     37.07721994 +/-    0.2147
# Hcoef:  8.66

The following table shows the complete astrometric record for 00ST331. 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 (00ST331) followed by the observatory code and reference code for the source of the astrometry.

2000 09  23.45660  03 50 33.51   +17 38 26.5   24.2R 00ST331   568  Cc1430      
2000 09  23.51348  03 50 33.37   +17 38 25.6         00ST331   568  Cc1430      
2000 09  23.58921  03 50 33.20   +17 38 25.1   24.1R 00ST331   568  Cc1430      
2000 09  24.47004  03 50 31.11   +17 38 16.1   23.7R 00ST331   568  Cc1430      
2000 09  24.52751  03 50 30.96   +17 38 15.5   23.6R 00ST331   568  Cc1431      
2000 09  24.59204  03 50 30.80   +17 38 15.0   24.6R 00ST331   568  Cc1431      
2001 11  14.25499  03 53 45.49   +17 51 32.6   24.0R 00ST331   309  Ce3523      
2001 11  14.29490  03 53 45.26   +17 51 32.2   24.3R 00ST331   309  Ce3523      
2001 11  15.28883  03 53 39.77   +17 51 15.3   24.3R 00ST331   309  Ce3523      
2001 11  15.32092  03 53 39.60   +17 51 14.7   24.1R 00ST331   309  Ce3523      

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     0.00       0.00     0.13
     2   0.0002     -2.15    -0.12      -0.45    -0.20
     3   0.0004     -4.63     0.13      -0.42     0.00
     4   0.0028    -35.74     0.03      -2.85    -0.02
     5   0.0029    -37.96    -0.06      -2.98    -0.03
     6   0.0031    -40.30     0.02      -2.98     0.12
     7   1.1411   2846.92     0.02     189.66     0.02
     8   1.1412   2843.62    -0.01     189.95     0.31
     9   1.1440   2763.42    -0.07     189.81    -0.12
    10   1.1441   2760.92     0.06     189.73    -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.

00ST331    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