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FRACTION ORBITE [3 records]

Record 1 2025-02-04

English

Subject field(s)
  • Astronautics
  • Collaboration with WIPO
CONT

Passive space debris removal includes using a deorbiting drag device such as a sail, a chute, a balloon, an electrodynamic tether, an electrospray device, turkey feathers, cross-curve booms, retroreflectors, or the like to increase the atmospheric drag of [of a small satellite] in order to decrease the orbit lifespan.

CONT

Active debris removal entails designing special missions to actively capture large debris and deorbit them from densely populated regions, thus lowering the risk factor for the active satellites. … On the other hand, passive debris removal is a much cheaper way to eliminate debris. Passive debris removal techniques ... can involve techniques such as slowing down debris as they pass through some resisting materials, but it is more time-consuming and mostly fit for smaller debris.

Key term(s)
  • SearchOnlyKey1

French

Domaine(s)
  • Astronautique
  • Collaboration avec l'OMPI
CONT

Les principaux objectifs du projet […] sont [de] mettre au point un nouveau concept résolument novateur d’enlèvement semi-contrôlé, basé sur un principe de retrait passif permettant d’assurer la désorbitation d’un engin spatial de grande envergure(>1 t) en le dirigeant vers l'océan Pacifique sans système de propulsion, mais avec une précision d’une fraction d’orbite […]

Spanish

Campo(s) temático(s)
  • Astronáutica
  • Colaboración con la OMPI
OBS

desorbitado pasivo de basura espacial: designación validada por un experto de la Comisión de Terminología, Sociedad Española de Astronomía, España.

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Record 2 2007-04-05

English

Subject field(s)
  • Launching and Space Maneuvering

French

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

Spanish

Save record 2

Record 3 2004-04-22

English

Subject field(s)
  • Facilities and Instruments (Astronomy)
CONT

The LAMA telescope employs an array of fixed 10-meter liquid-mirror telescopes. These are located in a closely-packed configuration with an overall diameter of 54 meters. Approximately 62% of the light that falls within this area is collected and focussed on a common detector. This gives the array a light-collecting power equivalent to that of a 42-metre telescope.

CONT

The Large-Aperture Mirror Array (LAMA): 18 identical telescopes in a 60 meter wide circular array, to be sited in either Chile or New Mexico.

French

Domaine(s)
  • Installations et instruments (Astronomie)
CONT

Le projet LAMA : un assemblage de 18 miroirs liquides disposés en cercles concentriques. En combinant leurs images, on obtiendrait une résolution inégalée, équivalente à celle d’un télescope de plus de 40 mètres, pour une fraction du prix des autres télescopes géants. [...] Avec le télescope LAMA, on pourrait même détecter des planètes de la taille de la terre en orbite autour d’étoiles lointaines.

Spanish

Save record 3

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