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Ground station equipment may be monitored and controlled remotely. There are often backup stations from which radio contact can be maintained if there is a problem at the primary ground station which renders it unable to operate, such as a natural disaster. Such contingencies are considered in a Continuity of Operations plan.
Parkes Observatory pointing toward the Moon, receiving data from Apollo 11 mission back to Earth. A ground station, Earth station, or Earth terminal is a terrestrial radio station designed for extraplanetary telecommunication with spacecraft (constituting part of the ground segment of the spacecraft system), or reception of radio waves from astronomical radio sources.
A 2.5 m parabolic dish antenna for bidirectional satellite Internet access. A very-small-aperture terminal (VSAT) [1] is a two-way satellite ground station with a dish antenna that is smaller than 3.8 meters. The majority of VSAT antennas range from 75 cm to 1.2 m. Bit rates, in most cases, range from 4 kbit/s to 16 Mbit/s.
English: Comparison of GPS, GLONASS, Galileo and COMPASS (medium Earth orbit satellites) orbits with International Space Station, Hubble Space Telescope, geostationary and graveyard orbits, and the nominal size of the Earth. For this diagram, the 3-dimensional aspect of orbits have been flattened.
The Block IIR series are "replenishment" (replacement) satellites developed by Lockheed Martin. Each satellite weighs 2,030 kg (4,480 lb) at launch and 1,080 kg (2,380 lb) once on orbit. [14] The first attempted launch of a Block IIR satellite failed on 17 January 1997 when the Delta II rocket exploded 12 seconds into flight. The first ...
A telecommunications satellite. The space segment comprises the uplink, the satellite itself, and the downlink A large parabolic antenna in a satellite Earth station. The space segment of an artificial satellite system is one of its three operational components (the others being the user and ground segments).
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Distance above earth (km) Distance from center of earth (km) Earth Erde Terre భూమి: Blue/brown image: 0: 6370 Low Earth Orbit (LEO) Low Earth Orbit Orbite terrestre basse భూ నిమ్న కక్ష్య: Cyan area: 160 to 2,000: 6,530 to 8,370 Medium Earth Orbit (MEO) Medium Earth Orbit Orbite moyenne de la terre