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LEOS [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-04-21

English

Subject field(s)
  • Spacecraft
CONT

Low Earth Orbit (LEO) satellites are located approximately 1000 km from the surface of the Earth and this allows the use of low power handheld mobile telephones. LEO satellites must move quickly to avoid falling into the Earth, therefore; LEO satellites circle the Earth in approximately 100 minutes at 24,000 km per hour.

OBS

They are located around 900 km over the Earth. Full coverage of the Earth's surface would require a minimum of 48 LEO satellites.

OBS

low-orbiting satellite: reproduced from "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco" with the authorization of Unesco.

Key term(s)
  • low orbit satellite
  • low orbiting satellite

French

Domaine(s)
  • Engins spatiaux
DEF

Satellite situé à une altitude d'environ 1000 km au-dessus de la Terre.

CONT

Satellites en orbite basse. Ces satellites en orbite basse ont une période de révolution qui varie entre 90 minutes et deux heures, et ils ne sont visibles de la Terre que durant une période qui ne peut excéder vingt minutes. La zone de couverture terrestre [...] de ces satellites est un cercle dont le rayon est de l'ordre d'une ou plusieurs centaines de kilomètres. [...] pour assurer la continuité du service et une couverture mondiale, il est nécessaire de déployer un grand nombre de satellites (constellation de satellites) autour de la Terre [...]

OBS

satellite sur orbite à basse altitude : reproduit de «Titles, Names and Acronyms related to the activities of the International Oceanographic commission of Unesco», avec l'autorisation de l'Unesco.

OBS

LEO : orbite basse terrestre.

Spanish

Campo(s) temático(s)
  • Naves espaciales
DEF

Satélite situado a una distancia de alrededor de 900 km sobre la superficie terrestre.

OBS

Se pretende que estos satélites combinen algunas funciones de las comunicaciones celulares, como por ejemplo, radiobúsqueda, telefonía móvil, etc. Para dar cobertura a toda la superficie de la Tierra se requeriría un mínimo de 48 satélites LEO.

OBS

satélite en órbita baja: Reproducido del "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco", con la autorización de Unesco.

Save record 1

Record 2 1995-11-02

English

Subject field(s)
  • National Bodies and Committees (Non-Canadian)
OBS

Part of the Institute of Electrical and Electronics Engineers.

Key term(s)
  • Lasers and Electro-Optics Society

French

Domaine(s)
  • Organismes et comités nationaux non canadiens
OBS

Part of the Institute of Electrical and Electronics Engineers.

Key term(s)
  • Lasers and Electro-Optics Society

Spanish

Save record 2

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