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: 02TD301 # Created Wed Nov 27 02:08:20 2024 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 1.08d # First observation: 2002/10/06 # Last observation: 2002/10/07 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 1022.53 DOF: 48 RMS: 1.11 # Min/Max residuals: -6.64 0.86 # Exact a, adot, b, bdot, g, gdot: 1.125113E-05 2.232406E-02 8.912428E-07 1.488508E-04 2.354907E-02 0.000000E+00 # Covariance matrix: 3.2452E-11 4.7996E-08 1.9442E-13 3.4376E-10 7.9604E-09 0.0000E+00 4.7996E-08 7.1249E-05 2.8833E-10 5.0979E-07 1.1805E-05 0.0000E+00 1.9442E-13 2.8833E-10 7.3222E-14 -2.1372E-11 4.7797E-11 0.0000E+00 3.4376E-10 5.0979E-07 -2.1372E-11 3.8949E-08 8.4511E-08 0.0000E+00 7.9604E-09 1.1805E-05 4.7797E-11 8.4511E-08 1.9570E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.7185E-04 # lat0 lon0 xBary yBary zBary JD0 -1.346049 30.539758 0.306447 -0.022372 -0.950959 2452553.943653 # Heliocentric elements and errors Epoch: 2452550.5000 = 2002/10/03 Mean Anomaly: 223.87730 +/- 115.823 Argument of Peri: 63.08723 +/- 90.166 Long of Asc Node: 104.31000 +/- 19.440 Inclination: 1.36830 +/- 0.132 Eccentricity: 0.01465146 +/- 0.5780 Semi-Major Axis: 42.96051415 +/- 21.8583 Time of Perihelion: 2491439.8502 +/- 649509.7 Perihelion: 42.33107977 +/- 32.8691 Aphelion: 43.58994854 +/- 33.2923 Period (y) 281.5869 +/- 214.91 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.53763141 +/- 2.1722 Ecliptic Y 21.79672447 +/- 1.2813 Ecliptic Z -0.99748446 +/- 0.0593 Ecliptic XDOT -0.00132605 +/- 0.0014 Ecliptic YDOT 0.00223249 +/- 0.0011 Ecliptic ZDOT 0.00001751 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.41849772 +/- 1.9851 Geocenter to KBO 42.46452176 +/- 2.5226 # Hcoef: 10.58
The following table shows the complete astrometric record for 02TD301. 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 (02TD301) followed by the observatory code and reference code for the source of the astrometry.
2002 10 06.44291 01 55 37.25 +10 23 59.5 02TD301 568 Cg6276 2002 10 06.44796 01 55 37.20 +10 23 59.8 26.6R 02TD301 568 Cg6276 2002 10 06.45279 01 55 37.19 +10 23 59.4 02TD301 568 Cg6276 2002 10 06.46244 01 55 37.13 +10 23 59.5 02TD301 568 Cg6276 2002 10 06.47210 01 55 37.10 +10 23 59.4 02TD301 568 Cg6276 2002 10 06.47692 01 55 37.05 +10 23 59.3 02TD301 568 Cg6276 2002 10 06.48179 01 55 36.69 +10 23 52.8 02TD301 568 Cg6276 2002 10 06.52261 01 55 36.87 +10 23 58.5 02TD301 568 Cg6276 2002 10 06.52743 01 55 36.85 +10 23 57.4 02TD301 568 Cg6276 2002 10 06.53708 01 55 36.82 +10 23 57.8 02TD301 568 Cg6276 2002 10 06.54193 01 55 36.79 +10 23 57.4 02TD301 568 Cg6276 2002 10 06.54678 01 55 36.78 +10 23 57.1 02TD301 568 Cg6276 2002 10 06.55161 01 55 36.76 +10 23 56.9 02TD301 568 Cg6276 2002 10 06.61671 01 55 36.45 +10 23 55.7 02TD301 568 Cg6276 2002 10 07.35662 01 55 33.27 +10 23 37.3 02TD301 568 Cg6276 2002 10 07.36144 01 55 33.27 +10 23 37.1 02TD301 568 Cg6276 2002 10 07.36627 01 55 33.25 +10 23 37.1 02TD301 568 Cg6276 2002 10 07.39039 01 55 33.12 +10 23 36.6 02TD301 568 Cg6276 2002 10 07.39522 01 55 33.10 +10 23 36.4 02TD301 568 Cg6276 2002 10 07.40007 01 55 33.11 +10 23 36.3 02TD301 568 Cg6276 2002 10 07.40522 01 55 33.06 +10 23 36.1 02TD301 568 Cg6276 2002 10 07.41487 01 55 33.02 +10 23 36.0 02TD301 568 Cg6276 2002 10 07.47336 01 55 32.81 +10 23 34.7 02TD301 568 Cg6276 2002 10 07.51197 01 55 32.58 +10 23 33.7 02TD301 568 Cg6276 2002 10 07.51720 01 55 32.57 +10 23 33.7 02TD301 568 Cg6276 2002 10 07.52202 01 55 32.56 +10 23 33.8 02TD301 568 Cg6276
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 0.77 0.00 -0.16
2 0.0000 -0.59 0.53 0.54 0.38
3 0.0000 -0.86 0.58 0.21 0.05
4 0.0001 -1.66 0.45 0.62 0.45
5 0.0001 -2.11 0.67 0.68 0.51
6 0.0001 -2.84 0.27 0.84 0.68
7 0.0001 -10.08 -6.64 -3.40 -3.56
8 0.0002 -5.60 0.64 1.02 0.86
9 0.0002 -6.26 0.31 0.09 -0.07
10 0.0003 -6.54 0.70 0.62 0.46
11 0.0003 -7.09 0.48 0.40 0.24
12 0.0003 -7.34 0.57 0.17 0.01
13 0.0003 -7.68 0.55 0.08 -0.07
14 0.0005 -12.39 0.31 0.55 0.42
15 0.0025 -62.78 -0.21 -0.35 -0.05
16 0.0025 -62.84 0.05 -0.54 -0.24
17 0.0025 -63.12 0.10 -0.44 -0.14
18 0.0026 -65.09 -0.21 -0.24 0.06
19 0.0026 -65.44 -0.22 -0.32 -0.03
20 0.0026 -65.34 0.22 -0.47 -0.17
21 0.0026 -66.10 -0.19 -0.40 -0.10
22 0.0027 -66.69 -0.11 -0.29 0.01
23 0.0028 -70.04 0.57 -0.43 -0.13
24 0.0029 -73.57 -0.29 -0.18 0.12
25 0.0029 -73.71 -0.06 -0.13 0.17
26 0.0030 -73.81 0.17 0.01 0.32
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.
02TD301 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