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: 01DV108
# Created Wed Nov 27 02:08:09 2024
# Orbit generated from Bernstein formalism
# Fitting 15 observations of 15
# Arc: 1.12y
# First observation: 2001/02/22
# Last observation: 2002/04/08
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.025383 0.000000 -0.002065 0.025200 0.000000
# Chi-squared of fit: 13.89 DOF: 24 RMS: 0.17
# Min/Max residuals: -0.40 0.30
# Exact a, adot, b, bdot, g, gdot:
1.564346E-05 2.536881E-02 -1.016139E-06 -2.061948E-03 2.519425E-02 -7.096954E-03
# Covariance matrix:
3.8338E-13 1.2623E-11 7.4085E-15 -1.5336E-12 9.3700E-12 6.5104E-10
1.2623E-11 6.4662E-09 5.8577E-12 -1.2186E-09 1.3505E-09 5.1461E-07
7.4085E-15 5.8577E-12 1.2887E-13 -1.2313E-12 1.1055E-12 4.7258E-10
-1.5336E-12 -1.2186E-09 -1.2313E-12 2.3336E-10 -2.2977E-10 -9.8325E-08
9.3700E-12 1.3505E-09 1.1055E-12 -2.2977E-10 4.7384E-10 9.7127E-08
6.5104E-10 5.1461E-07 4.7258E-10 -9.8325E-08 9.7127E-08 4.1517E-05
# lat0 lon0 xBary yBary zBary JD0
0.396278 153.696713 -0.008909 0.006702 -0.990870 2451962.918003
# Heliocentric elements and errors
Epoch: 2451960.5000 = 2001/02/20
Mean Anomaly: 311.74035 +/- 13.411
Argument of Peri: 255.00001 +/- 10.090
Long of Asc Node: 338.44782 +/- 0.018
Inclination: 4.66146 +/- 0.017
Eccentricity: 0.29455495 +/- 0.2609
Semi-Major Axis: 46.87791382 +/- 7.7040
Time of Perihelion: 2467676.1574 +/- 2016.1
Perihelion: 33.06979212 +/- 13.3816
Aphelion: 60.68603552 +/- 15.7796
Period (y) 320.9672 +/- 79.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.46943791 +/- 0.0307
Ecliptic Y 18.02348273 +/- 0.0152
Ecliptic Z 0.27448445 +/- 0.0002
Ecliptic XDOT -0.00053995 +/- 0.0006
Ecliptic YDOT -0.00280917 +/- 0.0003
Ecliptic ZDOT -0.00022921 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.68096819 +/- 0.0284
Geocenter to KBO 39.69160109 +/- 0.0343
# Hcoef: 8.18
The following table shows the complete astrometric record for 01DV108. 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 (01DV108) followed by the observatory code and reference code for the source of the astrometry.
2001 02 22.41726 10 23 00.26 +10 31 17.6 01DV108 568 Cf2332 2001 02 22.42496 10 23 00.21 +10 31 17.7 01DV108 568 Cf2332 2001 02 22.43266 10 23 00.18 +10 31 18.0 01DV108 568 Cf2332 2001 02 22.44035 10 23 00.14 +10 31 18.1 01DV108 568 Cf2332 2001 02 25.38568 10 22 45.93 +10 32 36.3 01DV108 568 Cf2332 2001 02 25.39337 10 22 45.88 +10 32 36.4 01DV108 568 Cf2332 2001 02 25.40107 10 22 45.86 +10 32 36.7 01DV108 568 Cf2332 2001 02 25.40877 10 22 45.81 +10 32 37.0 01DV108 568 Cf2332 2001 02 25.41646 10 22 45.78 +10 32 37.2 01DV108 568 Cf2332 2001 02 25.42416 10 22 45.74 +10 32 37.5 01DV108 568 Cf2332 2001 02 25.43186 10 22 45.66 +10 32 37.4 01DV108 568 Cf2332 2001 02 25.43955 10 22 45.62 +10 32 37.6 23.6R 01DV108 568 Cf2332 2002 04 07.38221 10 25 12.82 +10 09 52.5 23.8R 01DV108 568 Cf4949 2002 04 08.25544 10 25 09.97 +10 10 07.8 24.2R 01DV108 568 Cf4949 2002 04 08.28679 10 25 09.86 +10 10 08.3 24.1R 01DV108 568 Cf4949
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 0.06 0.00 -0.06
2 0.0000 -0.72 -0.07 -0.17 -0.22
3 0.0000 -1.24 0.00 -0.06 -0.09
4 0.0001 -1.83 0.01 -0.18 -0.20
5 0.0081 -225.48 0.17 -3.28 0.14
6 0.0081 -226.21 0.04 -3.46 -0.02
7 0.0082 -226.59 0.25 -3.29 0.16
8 0.0082 -227.39 0.05 -3.27 0.19
9 0.0082 -227.87 0.16 -3.25 0.22
10 0.0082 -228.53 0.10 -3.18 0.30
11 0.0083 -229.59 -0.37 -3.70 -0.21
12 0.0083 -230.21 -0.40 -3.73 -0.22
13 1.1197 2289.51 -0.05 -486.17 -0.07
14 1.1221 2244.74 0.05 -487.25 0.07
15 1.1222 2243.05 -0.01 -487.38 -0.00
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.
01DV108 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