Orbit Fit and Astrometric record for 00SY370

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: 00SY370   
# Created Mon Dec 18 02:37:04 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   16
# Arc:   3.06y
# First observation: 1999/07/18
#  Last observation: 2002/08/10
Preliminary a, adot, b, bdot, g, gdot:
   0.000114   0.021603  -0.000003   0.000581   0.023353   0.000000
# Chi-squared of fit:    14.66 DOF:   26 RMS:  0.17
# Min/Max residuals:    -0.39    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.443352E-05  2.168187E-02 -7.735112E-07  5.827505E-04  2.312264E-02  1.022984E-03
# Covariance matrix:
  4.6004E-13 -1.2549E-13  1.3854E-15 -1.0976E-16  2.7944E-13 -2.3458E-13
 -1.2549E-13  3.6856E-12 -2.7605E-14  9.9307E-14  4.5268E-12  5.6169E-11
  1.3854E-15 -2.7605E-14  3.2694E-13 -1.4428E-13 -3.1802E-14 -4.3693E-13
 -1.0976E-16  9.9307E-14 -1.4428E-13  9.1009E-14  1.2380E-13  1.5529E-12
  2.7944E-13  4.5268E-12 -3.1802E-14  1.2380E-13  6.1914E-12  6.9688E-11
 -2.3458E-13  5.6169E-11 -4.3693E-13  1.5529E-12  6.9688E-11  8.7902E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.001971  -57.181386    0.140206    0.017324   -1.004450  2451377.853293
# Heliocentric elements and errors
Epoch:              2451370.5000  =  1999/07/11
Mean Anomaly:          101.98585 +/-     0.388
Argument of Peri:      285.68974 +/-     0.393
Long of Asc Node:      270.32004 +/-     0.014
Inclination:             1.83056 +/-     0.001
Eccentricity:         0.04189551 +/-    0.0013
Semi-Major Axis:     43.80096662 +/-    0.0075
Time of Perihelion: 2421374.6353 +/-     113.7
Perihelion:          41.96590261 +/-    0.0582
Aphelion:            45.63603063 +/-    0.0583
Period (y)              289.8903 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.87089074 +/-    0.0025
Ecliptic Y          -37.25782447 +/-    0.0039
Ecliptic Z            0.75625423 +/-    0.0001
Ecliptic XDOT         0.00221906 +/-    0.0000
Ecliptic YDOT         0.00129915 +/-    0.0000
Ecliptic ZDOT         0.00007115 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.25535933 +/-    0.0036
Geocenter to KBO     43.24765773 +/-    0.0047
# Hcoef:  7.91

The following table shows the complete astrometric record for 00SY370. 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 (00SY370) followed by the observatory code and reference code for the source of the astrometry.

1999 07  18.35255  20 19 26.97   -18 33 13.3   23.8R 00SY370   568  Ce9199      
1999 07  18.37997  20 19 26.84   -18 33 13.7   23.9R 00SY370   568  Ce9199      
1999 07  18.40851  20 19 26.70   -18 33 14.2         00SY370   568  Ce9199      
2000 09  23.23564  20 20 07.31   -18 29 14.2   24.1R 00SY370   568  Cd2825      
2000 09  23.29210  20 20 07.19   -18 29 14.7   24.2R 00SY370   568  Cd2825      
2000 09  23.34027  20 20 07.09   -18 29 15.2   24.3R 00SY370   568  Cd2825      
2000 09  24.22994  20 20 05.31   -18 29 21.7   23.9R 00SY370   568  Cd2825      
2000 09  24.27922  20 20 05.23   -18 29 22.2   24.3R 00SY370   568  Cd2825      
2001 08  24.25496  20 26 43.07   -18 04 20.6   23.8R 00SY370   568  Ce3530      
2001 08  24.27556  20 26 42.98   -18 04 21.0   24.2R 00SY370   568  Ce3530      
2001 08  24.29717  20 26 42.90   -18 04 21.3   24.7R 00SY370   568  Ce3531      
2001 11  15.02786  20 25 17.12   -18 10 39.8   24.3R 00SY370   309  Ce3531      
2001 11  15.07571  20 25 17.25   -18 10 39.5   24.3R 00SY370   309  Ce3531      
2002 08  09.10496  20 32 49.51   -17 40 33.4   23.1R 00SY370   807  Ch1317      
2002 08  09.23072  20 32 48.93   -17 40 35.5         00SY370   807  Ch1317      
2002 08  10.19410  20 32 44.54   -17 40 51.6         00SY370   807  Ch1317      

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     0.08       0.00     0.24
  2   0.0001     -1.89     0.08       0.03     0.26
  3   0.0002     -3.94    -0.01      -0.00     0.21
  4   1.1852    613.15    -0.15     102.07    -0.20
  5   1.1853    611.38    -0.15     101.98    -0.26
  6   1.1855    609.88    -0.15     101.81    -0.39
  7   1.1879    583.74    -0.08     101.27    -0.09
  8   1.1880    582.52     0.19     101.04    -0.28
  9   2.1024   6444.87    -0.04     242.89     0.12
 10   2.1025   6443.52    -0.13     242.81     0.04
 11   2.1025   6442.34     0.00     242.79     0.03
 12   2.3290   5163.68     0.19     163.73    -0.01
 13   2.3292   5165.55     0.26     163.58    -0.12
 14   3.0602  11876.92     0.04     367.09     0.22
 15   3.0606  11868.34     0.07     367.09     0.19
 16   3.0632  11803.36    -0.20     366.84     0.02

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.

00SY370    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.723    43.746    43.701
ecceobj         0.042     0.040     0.045
incobj          1.833     1.833     1.833
qmin           39.972    41.052    41.126
qmax           47.854    46.665    46.524
amean          43.741    43.778    43.726
amin           43.359    43.436    43.377
amax           44.137    44.132    44.079
emean           0.055     0.042     0.042
emin            0.026     0.024     0.027
emax            0.084     0.059     0.057
imean           3.674     3.638     3.598
imin            2.923     2.927     2.791
imax            4.453     4.256     4.339
excite_mean     0.086     0.076     0.076
fracstop        1.000     1.000     1.000
cjmean          3.090     3.092     3.091

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       177.6     176.2     181.7
kozaiamp        180.0     180.0     180.0