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: 01SE291 # Created Wed Nov 27 02:08:13 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 2.17y # First observation: 2001/09/18 # Last observation: 2003/11/20 Preliminary a, adot, b, bdot, g, gdot: 0.000015 0.027355 -0.000000 -0.000122 0.026455 0.000000 # Chi-squared of fit: 13.12 DOF: 12 RMS: 0.21 # Min/Max residuals: -0.48 0.57 # Exact a, adot, b, bdot, g, gdot: 1.672852E-05 2.711679E-02 -4.868911E-07 -1.197031E-04 2.572826E-02 -1.212058E-03 # Covariance matrix: 5.2052E-13 1.4317E-11 1.2711E-15 -6.2558E-14 1.2429E-11 2.6481E-10 1.4317E-11 9.3211E-10 8.0771E-14 -4.0218E-12 7.9483E-10 1.7136E-08 1.2711E-15 8.0771E-14 2.9448E-13 -1.3860E-13 6.9893E-14 1.4754E-12 -6.2558E-14 -4.0218E-12 -1.3860E-13 1.6315E-13 -3.4398E-12 -7.3852E-11 1.2429E-11 7.9483E-10 6.9893E-14 -3.4398E-12 6.8344E-10 1.4561E-08 2.6481E-10 1.7136E-08 1.4754E-12 -7.3852E-11 1.4561E-08 3.1558E-07 # lat0 lon0 xBary yBary zBary JD0 -1.602108 7.559099 0.216106 -0.027505 -0.978905 2452170.813883 # Heliocentric elements and errors Epoch: 2452170.5000 = 2001/09/18 Mean Anomaly: 340.35000 +/- 6.425 Argument of Peri: 286.43680 +/- 8.760 Long of Asc Node: 106.69305 +/- 0.040 Inclination: 1.58401 +/- 0.000 Eccentricity: 0.13605739 +/- 0.0107 Semi-Major Axis: 45.57260856 +/- 0.2056 Time of Perihelion: 2458304.0842 +/- 2005.2 Perihelion: 39.37211820 +/- 0.5198 Aphelion: 51.77309892 +/- 0.5415 Period (y) 307.6550 +/- 2.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.51649267 +/- 0.0391 Ecliptic Y 5.03180565 +/- 0.0052 Ecliptic Z -1.08667890 +/- 0.0011 Ecliptic XDOT -0.00051643 +/- 0.0001 Ecliptic YDOT 0.00284450 +/- 0.0000 Ecliptic ZDOT -0.00000892 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.85038434 +/- 0.0388 Geocenter to KBO 38.86776053 +/- 0.0395 # Hcoef: 7.52
The following table shows the complete astrometric record for 01SE291. 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 (01SE291) followed by the observatory code and reference code for the source of the astrometry.
2001 09 18.31314 00 30 17.87 +01 31 38.7 23.5R 01SE291 675 Ce0701 2001 09 18.35660 00 30 17.68 +01 31 37.2 23.3R 01SE291 675 Ce0701 2001 09 18.39686 00 30 17.50 +01 31 35.7 23.4R 01SE291 675 Ce0701 2001 09 21.43637 00 30 03.69 +01 30 05.7 01SE291 675 Ce0701 2001 09 21.46943 00 30 03.50 +01 30 05.1 01SE291 675 Ce0701 2003 10 24.19583 00 39 04.54 +02 27 15.7 22.6R 01SE291 695 Cj5752 2003 10 24.29463 00 39 04.07 +02 27 13.3 01SE291 695 Cj5752 2003 11 20.10922 00 37 25.35 +02 17 22.9 23.0R 01SE291 695 Cj5752 2003 11 20.19483 00 37 25.11 +02 17 21.6 01SE291 695 Cj5752
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 -0.01 0.00 0.09
2 0.0001 -3.21 0.03 -0.25 -0.17
3 0.0002 -6.28 -0.02 -0.57 -0.48
4 0.0086 -232.07 0.18 -1.58 -0.01
5 0.0086 -234.92 -0.18 -1.01 0.57
6 2.0969 8576.28 0.18 -42.69 -0.18
7 2.0971 8568.84 -0.18 -42.13 0.24
8 2.1706 6974.08 -0.09 -2.89 -0.04
9 2.1708 6970.25 0.09 -2.67 -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.
01SE291 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.810 46.658 45.419 ecceobj 0.140 0.181 0.125 incobj 1.584 1.584 1.584 qmin 38.378 37.058 38.701 qmax 52.829 55.910 51.752 amean 45.431 46.255 45.061 amin 45.039 45.859 44.679 amax 45.847 46.739 45.469 emean 0.137 0.181 0.122 emin 0.122 0.166 0.105 emax 0.152 0.197 0.139 imean 0.811 0.955 0.846 imin 0.020 0.028 0.020 imax 1.379 1.627 1.411 excite_mean 0.138 0.182 0.124 fracstop 1.000 1.000 1.000 cjmean 3.096 3.088 3.096 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 183.7 186.2 193.0 kozaiamp 180.0 180.0 180.0