<page_title> List of missions to minor planets </page_title> <table> <cell> Galileo <col_header> Spacecraft </col_header> </cell> <cell> 951 Gaspra <col_header> Targeted minor planet </col_header> </cell> <cell> Incidental flyby en route to Jupiter; flyby occurred on 29 October 1991 with closest approach of 1,604 kilometres (997 mi) at 22:37 UTC <col_header> Remarks </col_header> </cell> </table>
The first spacecraft to visit an asteroid was Galileo, which flew past 951 Gaspra in October 1991; an incidental encounter while the probe was en route to Jupiter.