What are the types of satellite?
Space stations and human spacecraft in orbit are also satellites. Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of ways. Well-known (overlapping) classes include low Earth orbit, polar orbit, and geostationary orbit.
A: There are a wide variety of materials used for either, but satelites are usually made to be etremely light weight, and use materials such as titanium and alluminum. Addidtionally, they'll use composites and alloys, such as nickel-cadmium or aluminum-beryllium.
- The most common material is 2219-T6 aluminum alloy. Most of the ISS structure is aluminum. In fact, the Node modules were each made from single blocks of aluminum. When you look at the outside of the ISS, some of the surface is covered with debris protection blankets made from Nextel and/or Kevlar.
- Using titanium alloys can also strengthen the body of the ship. The space shuttle also had very special thermal protection tiles, which helped it survive the heat of re-entry. They are made a ceramic composite, with the bottom of the tiles made from a carbon composite to provide for the most heat protection.
- The satellite dishes of the early 1980s were 10 to 16 feet (3.0 to 4.9 m) in diameter and made of fiberglass with an embedded layer of wire mesh or aluminum foil, or solid aluminum or steel. Satellite dishes made of wire mesh first came out in the early 1980s, and were at first 10 feet (3.0 m) in diameter.
Artificial satellites. An artificial satellite is an object that people have made and launched into orbit using rockets. There are currently over a thousand active satellites orbiting the Earth. The size, altitude and design of a satellite depend on its purpose.
- Many authors define "satellite" or "natural satellite" as orbiting some planet or minor planet, synonymous with "moon"—by such a definition all natural satellites are moons, but Earth and other planets are not satellites.
- Artificial satellites are used to study the Earth, other planets, to help us communicate, and even to observe the distant Universe. Satellites can even have people in them, like the International Space Station and the Space Shuttle. The first artificial satellite was the Soviet Sputnik 1 mission, launched in 1957.
- History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm.or 22.8 inches in diameter), weighed only 83.6 kg. or 183.9 pounds, and took about 98 minutes to orbit the Earth on its elliptical path.
The basic satellite dish consists of the following materials: A parabolic reflector made of fiberglass or metal, usually aluminum, with a protruding steel feed horn and amplifier in its middle. A steel actuator that enables the dish to receive signals from more than one satellite.
- Low noise block downconverter ( LNB ) The abbreviation LNB stands for Low Noise Block. It is the device on the front of a satellite dish that receives the very low level microwave signal from the satellite, amplifies it, changes the signals to a lower frequency band and sends them down the cable to the indoor receiver.
- Follow the simple steps below to connect your dish to your TV:
- Connect one end of the coaxial cable to the back of your satellite dish labeled “LNB”
- Connect the other end of the coaxial cable to your satellite receiver in the port marked “Sat in”.
- Assuming you live north of the equator, all geosynchronous satellites with be to your south. On the east coast, satellite dishes will probably be pointed southwest.
Updated: 27th September 2018