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Explorer 21
completed
Launch 1964-060
Launched 10/4/1964
HEO
Service G
Sat HEO SO
Admin Edit
Payloads
Assets deployed on this mission, enriched from spacecraft records.
1 payload
IMP 2
retired
Science Exploration
HEO
Launch Details
Launch Date
10/4/1964
Launch ID
1964-060
Launch Profile
Sat HEO SO
Service Type
G
Orbit
HEO
Launch Stack
Operator
NASA Goddard Space Flight Center
Launch Vehicle
Thor Delta C
Launch Site
Space Launch Complex 17A, Cape Canaveral (Cape Canaveral Air Station, Florida)
US
Payload Summary
Payload Count
1
Payload Status
retired 1
Payload Mission Types
Science Exploration 1
Track