close-orbit satellite

См. также в других словарях:

• Satellite phone — A satellite telephone, satellite phone, or satphone is a type of mobile phone that connects to orbiting satellites instead of terrestrial cell sites. Depending on the architecture of a particular system, coverage may include the entire Earth, or… …   Wikipedia

• Orbit determination — is a branch of astronomy specialised in calculating, and hence predicting, the orbits of objects such as moons, planets, and spacecraft . These orbits could be orbiting the Earth, or other bodies. The determination of the orbit of newly observed… …   Wikipedia

• Satellite — This article is about artificial satellites. For natural satellites, also known as moons, see Natural satellite. For other uses, see Satellite (disambiguation). An animation depicting the orbits of GPS satellites in medium Earth orbit …   Wikipedia

• Orbit — This article is about orbits in celestial mechanics, due to gravity. For other uses, see Orbit (disambiguation). A satellite orbiting the Earth has a tangential velocity and an inward acceleration …   Wikipedia

• Orbit of the Moon — Not to be confused with Lunar orbit in the sense of a selenocentric orbit, that is, an orbit around the Moon The Moon completes its orbit around the Earth in approximately 27.3 days (a sidereal month). The Earth and Moon orbit about their… …   Wikipedia

• Satellite constellation — A group of electronic satellites working in concert is known as a satellite constellation. Such a constellation can be considered to be a number of satellites with coordinated ground coverage, operating together under shared control, synchronised …   Wikipedia

• Satellite revisit — The satellite revisit time is the time elapsed between observations of the same point on earth by a satellite.It depends on the satellite s orbit, target location, and swath of the sensor. Revisit is related to the same ground trace; a projection …   Wikipedia

• Satellite (moth) — Taxobox name = The Satellite image width = 240px regnum = Animalia phylum = Arthropoda classis = Insecta ordo = Lepidoptera familia = Noctuidae genus = Eupsilia species = E. transversa binomial = Eupsilia transversa binomial authority = Hufnagel …   Wikipedia

• Communications satellite — A communications satellite (sometimes abbreviated to COMSAT) is an artificial satellite stationed in space for the purpose of telecommunications. Modern communications satellites use a variety of orbits including geostationary orbits, Molniya… …   Wikipedia

• Anti-satellite weapon — Anti satellite weapons (ASATs) are space weapons designed to destroy satellites for strategic military purposes. Currently, only the USA, the former USSR and the People s Republic of China are known to have developed these weapons,with India… …   Wikipedia

• Geostationary orbit — Geostationary orbit.To an observer on the rotating Earth (fixed point on the Earth), the satellite appears stationary in the sky. A red satellite is also geostationary above its own point on Earth. Top Down View …   Wikipedia