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Online Material


  \begin{figure}
\par\includegraphics[width=8.8cm,clip]{euno_size.eps}\end{figure} Figure 1: (15) Eunomia size 2nd step fit with a single triaxial ellipsoidal model.


  \begin{figure}
\par\includegraphics[width=8.8cm,clip]{aria_size.eps}\end{figure} Figure 2: Same as Fig. 1 for (43) Ariadne.


  \begin{figure}
\par\includegraphics[width=8.8cm,clip]{nysa_size.eps}\end{figure} Figure 3: Same as Fig. 1 for (44) Nysa.


  \begin{figure}
\par\includegraphics[width=8.8cm,clip]{auso_size.eps}\end{figure} Figure 4: Same as Fig. 1 for (63) Ausonia.


  \begin{figure}
\par\includegraphics[width=8.8cm,clip]{kleo_size.eps}\end{figure} Figure 5: Same as Fig. 1 for (216) Kleopatra "primary''.


  \begin{figure}
\par\includegraphics[width=8.8cm,clip]{hekt_size.eps}\end{figure} Figure 6: Same as Fig. 1 for (624) Hektor.


  \begin{figure}
\par\includegraphics[width=15.8cm,clip]{euno_fit.eps}\end{figure} Figure 7: Fit of the merged S-curve for (15) Eunomia, on both FGS axis, with a single tri-axial ellipsoidal model. Observations were carried out with the PUPIL filter on Sept. 30, 1998. Graphs are given for some selected visits. The template from observations of the star HD 233877 was used in data reduction. The graphs in the inset give the residuals (note the scale change on the ordinates).


  \begin{figure}
\par\includegraphics[width=15.8cm,clip]{aria_fit.eps}\end{figure} Figure 8: Same as Fig. 7 for (43) Ariadne on Aug. 22, 1998.


  \begin{figure}
\par\includegraphics[width=15.8cm,clip]{nysa_fit.eps}\end{figure} Figure 9: Same as Fig. 7 for (44) Nysa on Sept. 5, 1998.


  \begin{figure}
\par\includegraphics[width=15.8cm,clip]{auso_fit.eps}\end{figure} Figure 10: Same as Fig. 7 for (63) Ausonia on Apr. 2, 1998.


  \begin{figure}
\par\includegraphics[width=15.8cm,clip]{kleo_fit.eps}\end{figure} Figure 11: Same as Fig. 7 for (216) Kleopatra on Jan. 13, 2000, and with two overlapping ellipsoids. Here observations are carried out with the FGSR#1 astrometer, and the modeled S-curve is obtained with a template from the star Upgren 69.


  \begin{figure}
\par\includegraphics[width=17cm]{hekt_fit.eps}\end{figure} Figure 12: Same as Fig. 7 for (624) Hektor on Oct. 23, 1998.


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