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List of orbits Various earth orbits to scale; cyan represents low earth orbit, yellow represents medium earth orbit, the black dashed line represents geosynchronous orbit, the green dash-dot line the orbit of Global Positioning System GPS satellites, and the red dotted line the orbit of the International Space Station ISS.
The first satellite, Sputnik 1was put into orbit around Earth and was therefore in geocentric orbit. By far this is the most common type of orbit with approximately 1,  artificial satellites orbiting the Earth. Geocentric orbits may be further classified by their altitude, inclination and eccentricity.
Low Earth orbit is any orbit below 2, km. Centric classifications[ edit ] Geocentric orbit: An orbit around the planet Earth, such as the Moon or artificial satellites. Currently there are approximately 1,  artificial satellites orbiting the Earth. An orbit around the Sun.
In our Solar Systemall planets, cometsand asteroids are in such orbits, as are many artificial satellites and pieces of space debris. Moons by contrast are not in a heliocentric orbit but rather orbit their parent planet.
An orbit around the planet Marssuch as by moons or artificial satellites. The general structure of a satellite is write about artificial satellites definition it is connected to the earth stations that are present on the ground and connected through terrestrial links.
Also known as an intermediate circular orbit. The period of the orbit equals one sidereal daycoinciding with the rotation period of the Earth. High Earth orbit HEO: Orbital Altitudes of several significant satellites of earth.
Inclination classifications[ edit ] Inclined orbit: An orbit whose inclination in reference to the equatorial plane is not zero degrees. An orbit that passes above or nearly above both poles of the planet on each revolution.
Therefore, it has an inclination of or very close to 90 degrees. Polar sun synchronous orbit: A nearly polar orbit that passes the equator at the same local time on every pass.
Useful for image taking satellites because shadows will be nearly the same on every pass. Eccentricity classifications[ edit ] Circular orbit: An orbit that has an eccentricity of 0 and whose path traces a circle.
An orbit that moves a spacecraft from one approximately circular orbit, usually the orbit of a planet, to another, using two engine impulses.
The perihelion of the transfer orbit is at the same distance from the Sun as the radius of one planet's orbit, and the aphelion is at the other. The two rocket burns change the spacecraft's path from one circular orbit to the transfer orbit, and later to the other circular orbit.
This maneuver was named after Walter Hohmann.
An orbit with an eccentricity greater than 0 and less than 1 whose orbit traces the path of an ellipse. An elliptic orbit where the perigee is at the altitude of a Low Earth orbit LEO and the apogee at the altitude of a geosynchronous orbit.
An elliptic orbit where the perigee is at the altitude of a Low Earth orbit LEO and the apogee at the altitude of a geostationary orbit. A highly elliptic orbit with inclination of Such a satellite spends most of its time over two designated areas of the planet specifically Russia and the United States.
Such a satellite spends most of its time over a single designated area of the planet. Synchronous classifications[ edit ] Synchronous orbit: An orbit where the satellite has an orbital period equal to the average rotational period earth's is: To a ground observer such a satellite would trace an analemma figure 8 in the sky.
Such a satellite would trace an analemma figure 8 in the sky.Artificial satellites come from more than 50 countries and have used the satellite launching capabilities of ten nations. A few hundred satellites are currently working, but thousands of unused satellites and satellite fragments orbit the Earth as space debris.
Landsat are the satellites which are used for gathering remote sensing data from various locations on the land. During exploration and production activities, the continual images of the earth's surface are required so as to help geologists understand the topography of the typical regions where it is impossible to reach for oil and gas exploration activities.
Nov 09, · There's satellites that function as desired in orbit, hence man-made satellites with the desired use, as for satellites a year.
Most launches fail to achieve the desired orbit and/or are hit by an object orbiting the earth (rocks or other satellites).
List of Natural Satellites.
Edit. Classic editor History Comments (5) Share. In the Solar System, there are satellites. A majority of those moons belong to the planet of Jupiter, the second most belonging to Saturn. The largest of these moons is Ganymede, which is one of the Galilean Moons.
On one post it note write down a definition for a satellite. On the second post it note write down as many uses of satellites as you can. Satellites. A satellite is: Uses of satellites. Artificial satellites. There are two types: Polar satellites – their orbits pass over both poles.
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|Satellite (artificial) - Simple English Wikipedia, the free encyclopedia||These satellites revolve round the planets and provide all the information about the planet through satellite imagery. The primary purpose of launching artificial satellites is to study the planet and communicate relevant information back to the scientists studying it.|
|How to write an ico white paper||The first has to do with why we use the orbital models we do for predicting the position of earth-orbiting artificial satellites.|
|The Twenty Minute War – benjaminpohle.com||Until the discovery of the Galilean satellites inhowever, there was no opportunity for referring to such objects as a class. He derived the term from the Latin word satelles, meaning "guard", "attendant", or "companion", because the satellites accompanied their primary planet in their journey through the heavens.|
|Satellites - Types and Uses of Satellites||This is different from the natural satellites, or moons, that orbit planets, dwarf planets and even asteroids. Artificial satellites are used to study the Earth, other planets, to help us communicate, and even to observe the distant Universe.|