Satellites can operate in several types of Earth orbit. The most common orbits for environmental satellites are geostationary and polar, but some instruments also fly in ... These satellites operate in a sun-synchronous orbit. The satellite passes the equator and each latitude at the same local solar time each day,
asd-www.larc.nasa.gov/SCOOL/orbits.html asd-www.larc.nasa.gov/SCOOL/orbits.html
Different orbits serve different purposes. Each has its own advantages and disadvantages. There are several types of orbits: ... This causes the satellite's orbit to either proceed or recede. These orbits are used for satellites that need a constant amount of sunlight. Satellites that take pictures of the Earth would work...
marine.rutgers.edu/mrs/education/class/paul/orbits2.htm... marine.rutgers.edu/mrs/education/class/paul/orbits2.html
What Are the Types of Satellite Orbits? ... In a polar orbit, the satellite generally flies at a low altitude and passes over the planet's poles on each revolution. The polar orbit remains fixed in space as Earth rotates inside the orbit. As a result, much of Earth passes under a satellite in a polar orbit.
science.howstuffworks.com/satellite6.htm science.howstuffworks.com/satellite6.htm
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Polar orbits are useful for viewing the planet's surface. As a satellite orbits in a north-south direction, Earth spins beneath it in an east-west direction. As a result, a satellite in polar orbit can eventually scan the entire surface.
academics.smcvt.edu/journalism/journalism/courses/Globa... academics.smcvt.edu/journalism/journalism/courses/Global%20Comm/Satellites/sat4.htm
Satellite Types and Missions ... Much discussion has centered around the placing of military weapons in orbit. However, the vast majority of military satellites in orbit are used for communications or surveillance purposes. Surveillance or spy satellites may use optical imagery, radar, or radio signal interception to keep...
www.dacite.com/sattypes.htm www.dacite.com/sattypes.htm
Satellite - Wikipedia, the free encyclopedia
In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavor. Such objects are sometimes called artificial satellites to distinguish them from natural...
en.wikipedia.org/wiki/Satellite
Also in the third section, a general discussion, but detailed, of orbit types including geostationary, low earth orbit, medium earth orbit, highly elliptical orbit, polar orbit and sun synchronous orbit with example applications for each one and a brief satellite history plus much more.
www.geo-orbit.org/ www.geo-orbit.org/
There are many different types of orbits used for satellite telecommunications, the geostationary orbit described above is just one of them. Outlined below are the most commonly used satellite orbits.
www.satcom.co.uk/article.asp?article=11