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: 01DM108
# Created Wed Nov 27 02:08:09 2024
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 3.04d
# First observation: 2001/02/22
# Last observation: 2001/02/25
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# Chi-squared of fit: 23.13 DOF: 16 RMS: 0.27
# Min/Max residuals: -0.51 0.89
# Exact a, adot, b, bdot, g, gdot:
1.473267E-05 2.128885E-02 5.446497E-07 1.065549E-03 2.255398E-02 0.000000E+00
# Covariance matrix:
2.7616E-11 3.8992E-08 2.2274E-14 -7.9257E-14 6.1473E-09 0.0000E+00
3.8992E-08 5.5487E-05 3.1676E-11 -1.1343E-10 8.7418E-06 0.0000E+00
2.2274E-14 3.1676E-11 1.8272E-13 -1.9475E-11 4.9915E-12 0.0000E+00
-7.9257E-14 -1.1343E-10 -1.9475E-11 1.0595E-08 -1.7842E-11 0.0000E+00
6.1473E-09 8.7418E-06 4.9915E-12 -1.7842E-11 1.3775E-06 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.5097E-04
# lat0 lon0 xBary yBary zBary JD0
0.119554 153.499546 -0.012319 0.001916 -0.990854 2451962.918003
# Heliocentric elements and errors
Epoch: 2451960.5000 = 2001/02/20
Mean Anomaly: 7.55617 +/- 132.777
Argument of Peri: 354.36038 +/- 199.489
Long of Asc Node: 151.17421 +/- 0.843
Inclination: 2.87062 +/- 1.038
Eccentricity: 0.02644990 +/- 0.5579
Semi-Major Axis: 46.54731000 +/- 24.2623
Time of Perihelion: 2449525.8341 +/- 390763.0
Perihelion: 45.31613826 +/- 35.1046
Aphelion: 47.77848175 +/- 35.9807
Period (y) 317.5778 +/- 248.30
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.56774566 +/- 2.0648
Ecliptic Y 20.21944732 +/- 1.0297
Ecliptic Z 0.09254577 +/- 0.0048
Ecliptic XDOT -0.00116118 +/- 0.0014
Ecliptic YDOT -0.00230961 +/- 0.0010
Ecliptic ZDOT 0.00012954 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.32743764 +/- 1.9042
Geocenter to KBO 44.33806357 +/- 2.3073
# Hcoef: 7.35
The following table shows the complete astrometric record for 01DM108. 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 (01DM108) followed by the observatory code and reference code for the source of the astrometry.
2001 02 22.41726 10 21 50.95 +10 20 06.2 01DM108 568 Ce0235 2001 02 22.42496 10 21 50.91 +10 20 06.3 01DM108 568 Ce0235 2001 02 22.43266 10 21 50.86 +10 20 06.3 01DM108 568 Ce0235 2001 02 22.44035 10 21 50.84 +10 20 06.8 01DM108 568 Ce0235 2001 02 22.48129 10 21 50.67 +10 20 07.9 01DM108 568 Ce0235 2001 02 22.48899 10 21 50.64 +10 20 08.0 01DM108 568 Ce0235 2001 02 22.49670 10 21 50.60 +10 20 08.4 01DM108 568 Ce0235 2001 02 25.38325 10 21 38.15 +10 21 21.4 01DM108 568 Ce0235 2001 02 25.42173 10 21 37.90 +10 21 22.8 01DM108 568 Ce0235 2001 02 25.46022 10 21 37.72 +10 21 23.8 23.5R 01DM108 568 Ce0235
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 0.04 0.00 0.04
2 0.0000 -0.59 -0.01 -0.12 -0.08
3 0.0000 -1.27 -0.16 -0.39 -0.35
4 0.0001 -1.73 -0.07 -0.03 0.01
5 0.0002 -4.47 0.05 0.09 0.12
6 0.0002 -4.92 0.14 0.02 0.05
7 0.0002 -5.61 -0.01 0.18 0.21
8 0.0081 -203.29 0.89 1.77 0.03
9 0.0082 -207.24 -0.36 1.75 -0.00
10 0.0083 -210.07 -0.51 1.72 -0.04
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.
01DM108 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