Gaspra and Ida in families

The Galileo flyby candidates 951 Gaspra and 243 Ida are both in families. The former is in a complex of families associated with 8 Flora and the latter is in the Koronis family. The Flora and the Koronis families are described. The Galileo spacecraft will have the opportunity to sample fragments from two types of impacts; one impact totally destroyed the parent body and the other left a large body behind. The types of Ss are also different, the colors of Gaspra and the other Ss in the complex of families near 8 Flora are much redder in U-V than Ida and the Ss of the Koronis family.