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: 00SW370 # Created Wed Nov 27 02:08:07 2024 # Orbit generated from Bernstein formalism # Fitting 6 observations of 6 # Arc: 1.10d # First observation: 2000/09/23 # Last observation: 2000/09/24 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 8.06 DOF: 8 RMS: 0.20 # Min/Max residuals: -0.22 0.48 # Exact a, adot, b, bdot, g, gdot: 1.662195E-05 2.465544E-02 -1.006162E-06 -2.573448E-03 2.507911E-02 0.000000E+00 # Covariance matrix: 5.4306E-11 8.4618E-08 -4.2429E-13 -5.3354E-10 1.9282E-08 0.0000E+00 8.4618E-08 1.3317E-04 -6.6629E-10 -8.3763E-07 3.0276E-05 0.0000E+00 -4.2429E-13 -6.6629E-10 3.4634E-13 -1.0882E-10 -1.5162E-10 0.0000E+00 -5.3354E-10 -8.3763E-07 -1.0882E-10 1.3550E-07 -1.9063E-07 0.0000E+00 1.9282E-08 3.0276E-05 -1.5162E-10 -1.9063E-07 6.8900E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 2.0757E-04 # lat0 lon0 xBary yBary zBary JD0 -0.359434 -43.366636 -0.688735 -0.004727 -0.722129 2451810.771703 # Heliocentric elements and errors Epoch: 2451810.5000 = 2000/09/23 Mean Anomaly: 73.65409 +/- 244.997 Argument of Peri: 108.16585 +/- 317.921 Long of Asc Node: 134.23546 +/- 1.458 Inclination: 5.96468 +/- 2.729 Eccentricity: 0.01428054 +/- 0.5839 Semi-Major Axis: 40.75889055 +/- 21.0822 Time of Perihelion: 2432364.6768 +/- 634777.3 Perihelion: 40.17683164 +/- 31.5962 Aphelion: 41.34094947 +/- 31.9954 Period (y) 260.2206 +/- 201.90 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.99046440 +/- 3.0337 Ecliptic Y -27.36961519 +/- 2.8658 Ecliptic Z -0.25015421 +/- 0.0262 Ecliptic XDOT 0.00183949 +/- 0.0013 Ecliptic YDOT 0.00196299 +/- 0.0013 Ecliptic ZDOT -0.00028078 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.60278768 +/- 2.9585 Geocenter to KBO 39.87382016 +/- 4.1734 # Hcoef: 8.47
The following table shows the complete astrometric record for 00SW370. 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 (00SW370) followed by the observatory code and reference code for the source of the astrometry.
2000 09 23.27096 21 16 48.01 -16 11 38.2 24.1R 00SW370 568 Cd2824 2000 09 23.31927 21 16 47.85 -16 11 38.9 00SW370 568 Cd2824 2000 09 23.36754 21 16 47.73 -16 11 39.2 00SW370 568 Cd2824 2000 09 24.26500 21 16 44.85 -16 11 53.5 24.3R 00SW370 568 Cd2824 2000 09 24.31434 21 16 44.68 -16 11 54.2 24.0R 00SW370 568 Cd2824 2000 09 24.37352 21 16 44.52 -16 11 55.3 24.7R 00SW370 568 Cd2824
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 -0.22 0.00 -0.13
2 0.0001 -2.41 -0.20 0.03 -0.07
3 0.0003 -4.15 0.48 0.26 0.20
4 0.0027 -48.01 -0.06 -0.88 0.04
5 0.0029 -50.56 -0.18 -0.82 0.14
6 0.0030 -53.09 0.19 -1.17 -0.18
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.
00SW370 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