What Are Uses of Geostationary Satellites? These satellites are commonly … Difference between geostationary and geosynchronous satellite. Figure 1 Satellite orbits (not to scale). Geostationary satellites orbit in the plane of the Earth’s equator with a period equal to that of the Earth’s rotation.
Thus, satellites in this region are a bit expensive as compared to satellites in the low-earth orbit. The orbits where geosynchronous satellites revolve are known as geosynchronous orbits. They are used as communications relays, since they are always visible from their users’ transmitters and receivers. These satellites have revolutionized global communications, television broadcasting and weather forecasting, and have a number of important defense and intelligence applications. Geostationary Satellites.
Uses: monitoring the weather, observing the Earth’s surface, military uses including spying Advantage : Polar satellites have the advantage of photographing clouds directly beneath them.
The interference from the upper layers of the atmosphere reduces the lifespan of these satellites in comparison with satellites in the GEO.
Satellites can be characterized by the orbits they keep. Satellites in geostationary orbit. NASA also uses geosynchronous satellites to send communications and data back and forth between spacecraft, such as the Space Shuttle and the Hubble Space Telescope, and … All the users have to do is aim their antennas at the satellites that they will be using, and they don’t even have to move their antennas to …
They also circle at a much lower altitude (about 850 km) providing more detailed … This is a list of satellites in geosynchronous orbit (GSO). … Polar orbiting satellites provide imagery and atmospheric soundings of temperature and moisture data over the entire Earth. A geostationary satellite revolves around the earth at a constant speed once per day over the equator. Geosynchronous Satellites. A geostationary satellite is in a geostationary orbit, which can only be achieved at an altitude very close to 35,786 km (22,236 m) and keeps the satellite fixed over one longitude at the equator.
This is cheaper and easier than having a satellite dish that is always moving to track a satellite. Geostationary satellites are in orbit 22,000 miles above the equator, spin at the same rate of the Earth and constantly focus on the same area. The satellite appears motionless at a fixed position in the sky to ground observers. Examples of these are the Astra , Eutelsat , and Hotbird spacecraft in orbit over the European continent. Geostationary satellites are positioned in a circular orbit in the Earth's equator plan.