Estimates of ﹩{\hat{\sigma }}_{\mathrm{OC}}﹩, ﹩{\hat{\sigma }}_{\mathrm{SC}}﹩, ﹩{\hat{\sigma }}_{\mathrm{tot}}﹩, μ_c, and m from Goldstone 3.5 cm observations in this study and S. J. Ostro et al.’s (1992) study. For ﹩{\hat{\sigma }}_{\mathrm{OC}}﹩, ﹩{\hat{\sigma }}_{\mathrm{SC}}﹩, and ﹩{\hat{\sigma }}_{\mathrm{tot}}﹩, we used unweighted means and rms dispersions, whereas for μ_c and m, we used weighted means and rms dispersions. Our values are in black, and S. J. Ostro et al.’s (1992) values are in red.