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INCLINED ELLIPTICAL ORBIT [4 records]

Record 1 2004-03-26

English

Subject field(s)
  • Spacecraft
  • Launching and Space Maneuvering
OBS

Classification of satellite orbits : 1. Type of orbit : Circular(with centre of the circle at the centre of the earth), Elliptical(with the earth's centre as one of the two foci of the ellipse). 2. Plane of orbit : Equatorial orbit(directly above the earth's equator), Polar orbit(passes over both poles). Inclined orbits(any other orbit). 3. Altitude of the communications satellite : GEO(geostationary orbit), MEO(medium earth orbit), LEO(low earth orbit).

French

Domaine(s)
  • Engins spatiaux
  • Lancement et manœuvres dans l'espace
CONT

Tous les satellites de télécommunication (transmission de données, d'images et de sons) sont placés sur une orbite circulaire équatoriale. La raison en est simple : ainsi placés, ils peuvent facilement «arroser» différentes zones du globe et relayer des données provenant de deux points très éloignés. C'est cette localisation équatoriale qui explique l'orientation au sud d'une antenne parabolique installée depuis la France et plus globalement l'hémisphère nord.

Spanish

Save record 1

Record 2 2002-12-11

English

Subject field(s)
  • Satellite Telecommunications
OBS

The Advanced Orbital Test Satellite System(AOTS) may introduce ESA's first communications satellite in a highly elliptical, inclined orbit. Named Archimedes, the new system would be designed primarily for portable receivers at high latitudes. First launch of up to six spacecraft could begin by the end of the decade.

French

Domaine(s)
  • Télécommunications par satellite

Spanish

Save record 2

Record 3 2002-12-10

English

Subject field(s)
  • Satellite Telecommunications
CONT

... ESA has been studying the Advanced Research in Communications using Highly Inclined orbits for Mobile applications and other Experiments and Demonstrations using European Satellites(ARCHIMEDES) system, consisting of a constellation of four spacecraft operating in non-geostationary orbits(non-GEO) for direct satellite audio broadcast(DAB) and land-mobile(LMSS) applications. This system would be placed in elliptical orbit to enable high elevation angle operation over Europe to reduce shadowing and multipath problems.

French

Domaine(s)
  • Télécommunications par satellite

Spanish

Save record 3

Record 4 1975-03-11

English

Subject field(s)
  • Telecommunications
OBS

284

French

Domaine(s)
  • Télécommunications
OBS

284

Spanish

Save record 4

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