@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/3466eed1-2fbb-49bf-ab0b-dc08731d502b>
  skos:prefLabel "Earth Observation Satellites"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/14bedb8d-7d18-4ae6-9882-9cf87bd3824e> .

<https://gcmd.earthdata.nasa.gov/kms/concept/14bedb8d-7d18-4ae6-9882-9cf87bd3824e>
  skos:definition """CORONA is the first operational space photo reconnaissance
satellite. President Dwight David Eisenhower approved the
project in Febuary 1958. The project was conceived to take
pictures in space of the Soviet Bloc countries and de-orbit
the photographic film for processing and exploitation.

Satellite Characteristics:

OBJECTIVES:
- Annual and Semi-Annual Search
- Priority Targets
- Mapping, Charting and Geodesy

PAYLOAD DATA:
- Two convergent, F/3.5, 24. in FL Pan Cameras
- Stellar-Terrain Camera
- 2 1,500 FT x 70mm FILM
- Frame Size 7.4 x 119 NM
- Resolution 6-10 FT
- Coverage 7 Million SQ NM/Mission
- Two Recovery Vehicles

ORBITAL DATA:
- Inclination 60-110 DEG
- Average Perigee 100 NM
- Average Apogee 150 NM
- Mission Life: 10 days

BOOSTER:
- Thorad / Agenda

Additional inforamtion available at
"http://www.nro.gov/corona/sysinfo2.htm"

[Summary provided by the National Reconnaissance Office]"""@en ;
  skos:prefLabel "CORONA"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/3466eed1-2fbb-49bf-ab0b-dc08731d502b> ;
  a skos:Concept .