What Is The Main Purpose Of A Satellite Media Essay.
These first satellites could see objects as small as 35-40 feet and once they ejected their film capsule, the satellites were forced to reenter and burn up in the atmosphere. The latest declassified satellite is from the late 1970s and can focus on objects as small as 5.5 inches. Instead of using a film canister, the KH-11 series of satellites uses a digital sensor and communications.
Communication Satellites Essay. 1018 Words 5 Pages. Show More. Communication Satellites Have you ever thought about how that little phone in your hand works? What about how you always seem to have internet and cable access? A satellite is a device put into orbit around Earth that uses receivers, amplifiers, and transmitters to receive and send signals around the globe (“Communications.
All artificial satellites consist of certain features in common. They includeradar for altitude measurements, sensors such as optical devices in observationsatellites, receivers and transmitters in communication satellites, and stableradio-signal sources in navigation satellites. Solar cells generate power fromthe sun, and storage batteries are used for the periods when the satellite.
Astronomy satellite - e.g. Hubble Space Telescope. A telescope orbiting the Earth. An astronomy satellite's vision is not clouded by the gases that make up the Earth's atmosphere, so it gives clearer pictures than telescopes on Earth. Astro nomy satellites study stellar phenomenona like black holes, quasars, and distant galaxies. These are not to be confused with space exploration satellites.
The Cosmic Background Explorer (COBE), also referred to as Explorer 66, was a satellite dedicated to cosmology. Its goals were to investigate the cosmic microwave background radiation (CMB) of the.
Satellites are very costly, hard to maintain, and not always reliable. These disadvantages have to be weighed against the many benefits from satellites. They take photographs of various things on Earth and in space, in visible light or in other areas of the electromagnetic spectrum, and send and receive a variety of signals for televisions, cell phones and GPS devices.
COBE Satellite Model. A series of photos of the model, made before the COBE Launch. They should be good enough to decipher the needed measurements for the intrepid model maker (a ruler has been placed in most of the photos.) This model was created before the COBE satellite was actually built, so you will need to look to the painting and the construction photo included in the archive file for.