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: 01DN108
# Created Tue May 7 01:10:18 2024
# Orbit generated from Bernstein formalism
# Fitting 8 observations of 8
# Arc: 1.06y
# First observation: 2001/02/22
# Last observation: 2002/03/18
Preliminary a, adot, b, bdot, g, gdot:
-0.000001 0.010082 -0.000001 -0.002652 0.020807 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 12.37 DOF: 11 RMS: 0.22
# Min/Max residuals: -0.34 0.45
# Exact a, adot, b, bdot, g, gdot:
6.838776E-06 1.013555E-02 -2.591473E-06 -2.706173E-03 2.081854E-02 1.764752E-02
# Covariance matrix:
5.0435E-13 3.5506E-12 6.9306E-16 -1.8819E-13 1.0387E-11 6.7708E-11
3.5506E-12 2.2231E-10 5.8914E-13 -1.7722E-10 1.8235E-10 6.2302E-08
6.9306E-16 5.8914E-13 2.4846E-13 -8.4344E-13 1.3239E-13 2.1417E-10
-1.8819E-13 -1.7722E-10 -8.4344E-13 1.8452E-10 -3.9060E-11 -6.4528E-08
1.0387E-11 1.8235E-10 1.3239E-13 -3.9060E-11 4.2373E-10 1.3790E-08
6.7708E-11 6.2302E-08 2.1417E-10 -6.4528E-08 1.3790E-08 2.2677E-05
# lat0 lon0 xBary yBary zBary JD0
0.542050 153.459426 -0.015038 0.009212 -0.990808 2451963.033013
# Heliocentric elements and errors
Epoch: 2451960.5000 = 2001/02/20
Mean Anomaly: 27.50506 +/- 25.764
Argument of Peri: 35.82389 +/- 7.531
Long of Asc Node: 335.46138 +/- 0.007
Inclination: 14.93226 +/- 0.051
Eccentricity: 0.86737713 +/- 0.0876
Semi-Major Axis: 62.43841961 +/- 38.4738
Time of Perihelion: 2438192.0077 +/- 2092.5
Perihelion: 8.28076243 +/- 7.4817
Aphelion: 116.59607679 +/- 72.0532
Period (y) 493.3851 +/- 456.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -43.85937044 +/- 0.0425
Ecliptic Y 21.89630420 +/- 0.0212
Ecliptic Z 0.45431495 +/- 0.0004
Ecliptic XDOT -0.00268308 +/- 0.0006
Ecliptic YDOT -0.00015073 +/- 0.0003
Ecliptic ZDOT -0.00033373 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 49.02345271 +/- 0.0392
Geocenter to KBO 48.03411931 +/- 0.0475
# Hcoef: 6.89
The following table shows the complete astrometric record for 01DN108. 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 (01DN108) followed by the observatory code and reference code for the source of the astrometry.
2001 02 22.53227 10 22 19.16 +10 44 36.3 01DN108 568 Ce0235 2001 02 22.55536 10 22 19.05 +10 44 37.0 01DN108 568 Ce0235 2001 02 22.59385 10 22 18.87 +10 44 38.2 01DN108 568 Ce0235 2001 02 25.47763 10 22 06.21 +10 45 45.2 01DN108 568 Ce0235 2001 02 25.51615 10 22 06.02 +10 45 46.1 01DN108 568 Ce0235 2001 02 25.55464 10 22 05.84 +10 45 47.2 24.0R 01DN108 568 Ce0235 2002 03 18.18449 10 22 37.805 +10 32 21.70 22.9R 01DN108 695 2002 03 18.24387 10 22 37.596 +10 32 22.72 01DN108 695
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 0.18 0.00 0.11
2 0.0001 -1.76 0.02 0.07 0.22
3 0.0002 -4.67 -0.21 0.22 0.45
4 0.0081 -202.84 0.23 -4.88 -0.25
5 0.0082 -205.77 -0.02 -5.06 -0.34
6 0.0083 -208.64 -0.21 -4.99 -0.20
7 1.0641 522.35 -0.23 -585.10 0.03
8 1.0642 519.11 0.23 -585.26 -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.
01DN108 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