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: 01DP108
# Created Sat Apr 20 01:10:25 2024
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 3.02d
# 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: 12.35 DOF: 16 RMS: 0.20
# Min/Max residuals: -0.40 0.55
# Exact a, adot, b, bdot, g, gdot:
1.873858E-05 3.282269E-02 3.727374E-07 5.888741E-04 3.010914E-02 0.000000E+00
# Covariance matrix:
4.2455E-11 7.9724E-08 4.7342E-14 2.1603E-11 1.2570E-08 0.0000E+00
7.9724E-08 1.5149E-04 8.9893E-11 4.1018E-08 2.3868E-05 0.0000E+00
4.7342E-14 8.9893E-11 4.3841E-13 -5.5706E-11 1.4164E-11 0.0000E+00
2.1603E-11 4.1018E-08 -5.5706E-11 1.0668E-08 6.4629E-09 0.0000E+00
1.2570E-08 2.3868E-05 1.4164E-11 6.4629E-09 3.7606E-06 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 3.5918E-04
# lat0 lon0 xBary yBary zBary JD0
0.876062 153.522166 -0.013683 0.014989 -0.990754 2451963.017623
# Heliocentric elements and errors
Epoch: 2451960.5000 = 2001/02/20
Mean Anomaly: 5.79972 +/- 325.462
Argument of Peri: 33.42147 +/- 33.693
Long of Asc Node: 113.94054 +/- 11.460
Inclination: 1.33470 +/- 0.325
Eccentricity: 0.03062424 +/- 0.5755
Semi-Major Axis: 35.27617438 +/- 18.7237
Time of Perihelion: 2450727.6072 +/- 222240.0
Perihelion: 34.19586832 +/- 27.2328
Aphelion: 36.35648044 +/- 28.0102
Period (y) 209.5224 +/- 166.81
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -30.61437263 +/- 1.9144
Ecliptic Y 15.24020294 +/- 0.9538
Ecliptic Z 0.50783230 +/- 0.0327
Ecliptic XDOT -0.00133826 +/- 0.0016
Ecliptic YDOT -0.00266864 +/- 0.0011
Ecliptic ZDOT 0.00005373 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 34.20177614 +/- 1.7655
Geocenter to KBO 33.21250225 +/- 2.1391
# Hcoef: 9.99
The following table shows the complete astrometric record for 01DP108. 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 (01DP108) followed by the observatory code and reference code for the source of the astrometry.
2001 02 22.51688 10 23 03.04 +11 01 55.1 01DP108 568 Ce0235 2001 02 22.53227 10 23 02.98 +11 01 55.4 01DP108 568 Ce0235 2001 02 22.59385 10 23 02.63 +11 01 57.5 01DP108 568 Ce0235 2001 02 25.48006 10 22 46.33 +11 03 32.4 01DP108 568 Ce0235 2001 02 25.48777 10 22 46.27 +11 03 32.0 01DP108 568 Ce0235 2001 02 25.49547 10 22 46.23 +11 03 32.6 01DP108 568 Ce0235 2001 02 25.50317 10 22 46.18 +11 03 32.8 01DP108 568 Ce0235 2001 02 25.51857 10 22 46.08 +11 03 32.8 01DP108 568 Ce0235 2001 02 25.52628 10 22 46.05 +11 03 33.2 01DP108 568 Ce0235 2001 02 25.53398 10 22 46.00 +11 03 33.5 24.9R 01DP108 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 -0.31 0.00 -0.01
2 0.0000 -0.93 0.15 -0.04 -0.05
3 0.0002 -6.50 0.16 0.05 0.05
4 0.0081 -264.55 0.03 1.46 0.55
5 0.0081 -265.22 0.05 0.77 -0.14
6 0.0082 -265.99 -0.02 1.12 0.21
7 0.0082 -266.75 -0.08 1.03 0.13
8 0.0082 -268.12 -0.06 0.50 -0.40
9 0.0082 -268.68 0.08 0.71 -0.18
10 0.0083 -269.47 -0.02 0.73 -0.17
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.
01DP108 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