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Application Satellites
Pages 10-13

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From page 10... ... At that altitude they complete one revolution every 24 hours and therefore remain stationary relative to the surface of the earth below. Satellites in this geostationary orbit provide high sky platforms for relaying signals to and from ground stations, vehicles, boats, and planes scattered over the surface below. Read the entire page →
From page 11... ... Much of the unobserved region covered the vast oceans of the Southern Hemisphere and the tropics, where a storm could churn into a hurricane with no one knowing until it sank a ship or washed away a town. But since 1966, when the first fully operational weather satellite A P P L I C A T I O N S A ~ E L ~ I T E S I An astronaut retrieves a communications satellite, Westar ill, that failed to go into high geostationary orbit after being launched into low earth orbit. Read the entire page →
From page 12... ... These orbiters create high-quality images that can be used to help study worldwide crop production, search for minerals and petroleum, monitor environmental problems such as desert creep and deforestation, and measure snowmelt to predict water resources and control flooding. In 1972 the United States launched the first in a series of Landsat satellites, which scrutinize the entire earth from near-polar orbit, observing each spot at the same local time every 18 days. Read the entire page →
From page 13... ... A "Mission to Planet Earth" is being organized using earth-observation satellites and other means to study such problem i areas as polar ozone holes, deforestation, ocean productivity, landcover change, and global warming caused by the "greenhouse effect." The precision of their orbits makes satellites ideal instruments for navigation. They have all but replaced the sextant since about 1968, when the Navy completed a system of navigation satellites, called Transit, for ballistic missiles fired from submarines. Read the entire page →

From page 10...

... At that altitude they complete one revolution every 24 hours and therefore remain stationary relative to the surface of the earth below. Satellites in this geostationary orbit provide high sky platforms for relaying signals to and from ground stations, vehicles, boats, and planes scattered over the surface below.

Read the entire page →

From page 11...

... Much of the unobserved region covered the vast oceans of the Southern Hemisphere and the tropics, where a storm could churn into a hurricane with no one knowing until it sank a ship or washed away a town. But since 1966, when the first fully operational weather satellite A P P L I C A T I O N S A ~ E L ~ I T E S I An astronaut retrieves a communications satellite, Westar ill, that failed to go into high geostationary orbit after being launched into low earth orbit.

Read the entire page →

From page 12...

... These orbiters create high-quality images that can be used to help study worldwide crop production, search for minerals and petroleum, monitor environmental problems such as desert creep and deforestation, and measure snowmelt to predict water resources and control flooding. In 1972 the United States launched the first in a series of Landsat satellites, which scrutinize the entire earth from near-polar orbit, observing each spot at the same local time every 18 days.

Read the entire page →

From page 13...

... A "Mission to Planet Earth" is being organized using earth-observation satellites and other means to study such problem i areas as polar ozone holes, deforestation, ocean productivity, landcover change, and global warming caused by the "greenhouse effect." The precision of their orbits makes satellites ideal instruments for navigation. They have all but replaced the sextant since about 1968, when the Navy completed a system of navigation satellites, called Transit, for ballistic missiles fired from submarines.

Read the entire page →

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Application Satellites Pages 10-13

Application Satellites
Pages 10-13