In-flight performance and preliminary observational results of Solar Wind Ion Detectors (SWIDs) on Chang'E-1

▸ In-flight performance of Solar Wind Ion Detectors on CE-1 is introduced. ▸ A typical event of the Moon-solar wind interaction measured by SWIDs is reported. ▸ An event of double ion beams in the solar wind near the Moon observed by SWIDs is reported.