Explorer 28
Success
MAY 29196512:00:00 UTCA planetary exploration mission on Delta C / Altair-2A.
LIFTOFF
MAY 29 196512:00:00 UTC
Success
launched from LC-17B Canaveral
aboard Delta C / Altair-2A Delta 31 into HEO
Payload
Explorer 28 (IMP-C)
Planetary exploration