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: 01QS297
# Created Sun Dec 22 02:08:17 2024
# Orbit generated from Bernstein formalism
# Fitting 6 observations of 6
# Arc: 23.16d
# First observation: 2001/08/20
# Last observation: 2001/09/12
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.033622 -0.000001 0.002029 0.025251 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# Chi-squared of fit: 3.29 DOF: 7 RMS: 0.13
# Min/Max residuals: -0.27 0.27
# Exact a, adot, b, bdot, g, gdot:
1.527650E-05 2.280664E-02 8.102639E-07 1.964589E-03 2.348956E-02 4.507492E-03
# Covariance matrix:
4.6260E-11 6.4510E-08 -1.6923E-13 3.9879E-10 1.0672E-08 -1.4786E-07
6.4510E-08 9.0814E-05 -2.3780E-10 5.6061E-07 1.5014E-05 -2.1434E-04
-1.6923E-13 -2.3780E-10 3.7761E-13 -7.6354E-12 -3.9349E-11 5.3469E-10
3.9879E-10 5.6061E-07 -7.6354E-12 3.7547E-09 9.2744E-08 -1.2766E-06
1.0672E-08 1.5014E-05 -3.9349E-11 9.2744E-08 2.4829E-06 -3.4934E-05
-1.4786E-07 -2.1434E-04 5.3469E-10 -1.2766E-06 -3.4934E-05 9.0458E-04
# lat0 lon0 xBary yBary zBary JD0
1.281918 -36.452788 -0.057558 0.022514 -1.010746 2452141.618783
# Heliocentric elements and errors
Epoch: 2452140.5000 = 2001/08/19
Mean Anomaly: 55.14584 +/- 106.723
Argument of Peri: 296.56425 +/- 246.208
Long of Asc Node: 309.45427 +/- 5.363
Inclination: 5.10009 +/- 1.890
Eccentricity: 0.20936885 +/- 1.2093
Semi-Major Axis: 47.61806209 +/- 20.7980
Time of Perihelion: 2433755.3880 +/- 33479.7
Perihelion: 37.64832296 +/- 59.8874
Aphelion: 57.58780123 +/- 62.8391
Period (y) 328.5987 +/- 215.28
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 35.08463009 +/- 2.2964
Ecliptic Y -25.83666630 +/- 1.6966
Ecliptic Z 0.95244406 +/- 0.0639
Ecliptic XDOT 0.00198915 +/- 0.0024
Ecliptic YDOT 0.00183046 +/- 0.0027
Ecliptic ZDOT 0.00024089 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 43.58178224 +/- 2.1045
Geocenter to KBO 42.57209882 +/- 2.8558
# Hcoef: 5.39
The following table shows the complete astrometric record for 01QS297. 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 (01QS297) followed by the observatory code and reference code for the source of the astrometry.
2001 08 20.11804 21 41 45.84 -12 27 36.1 21.9R 01QS297 807 Cd7926 2001 08 20.19624 21 41 45.49 -12 27 38.0 01QS297 807 Cd7926 2001 08 21.13163 21 41 41.28 -12 27 58.3 21.9R 01QS297 807 Cd7926 2001 08 21.20510 21 41 40.96 -12 27 59.9 01QS297 807 Cd7926 2001 09 12.23381 21 40 07.06 -12 35 41.4 20.4R 01QS297 695 Ch1433 2001 09 12.28087 21 40 06.89 -12 35 42.8 01QS297 695 Ch1433
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 0.02 0.00 0.11
2 0.0002 -5.47 0.05 -0.12 -0.11
3 0.0028 -70.38 -0.14 0.91 0.04
4 0.0030 -75.33 0.07 0.93 -0.03
5 0.0633 -1525.63 -0.04 14.25 0.27
6 0.0634 -1528.44 0.04 13.74 -0.27
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.
01QS297 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