Reconnaissance satellite
satellite that covertly collects data for intelligence or military applications
Helios 2A
MIDAS 12
USA-326
MIDAS 4
MIDAS 7
POPPY 1
SAMOS
Galactic Radiation and Background
Monitor-E
Vela 3A
Vela 3B
Prowler
USA-247
US-A
Magnum
SARah
Discoverer 1
Persona
Corona
Discoverer 36
USA-276
Naval Ocean Surveillance System
Helios 2B
Key Hole
Discoverer 9
Discoverer 14
ORS-5
USA-234
Mohammed VI
MIDAS 2
Trumpet
HiROS
Aquacade
USA-282
Canyon
Discoverer 21
Discoverer 25
Discoverer 26
Discoverer 29
Discoverer 30
Discoverer 34
Discoverer 35
SAMOS 5
Poppy
Hitchhiker 1
Discoverer 10
Future Imagery Architecture
SAR-Lupe
Quill
Discoverer 19