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A satellite in a "polar" orbit goes north and south around the world. Depending on the satellite's altitude, it will take about 90 minutes to go around once. But because the Earth itself spins from West to East, every time the satellite comes back around, the Earth will have rotated underneath it, by 360 degrees divided by the orbital period in minutes; for a 90-minute orbit, about 23 degrees per orbit.
You can see how this would work if you take some string or ribbon, and wrap it top-to-bottom around a ball. Be sure to spin the ball slowly while wrapping it with the string.
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How many American satellites orbit the earth?
According to Oberright, John E. "Satellite, Artificial." World Book Online Reference Center. 2004. World Book, Inc. http://www.nasa.gov/worldbook/artificial_satellites_worldbook.html about 3000 useful satellites launched by the US and 40 other countries orbit Earth along with about 6000 "pieces of space junk." this guy doesn't kno what he's talkin about!!!! Um, are you sure? I need to know this for science ,dang it! There is actually 15,000 American satelites in orbit right now!! O! I'm smart! o burn.
How many satellites does India have?
Google has a constalation of 13 Satellites in orbit around earth for networking, mapping, and communication purposes. The first satellite, Google1, was launched on February 3rd, 2005 atop an Ares3 heavy lift vehicle from Launch Complex 32 at Kennedy Space Center in Florida. Subsequent Satellites were launched approximately every 3 months with the noted failure of Google 9 which was lost due to launch vehicle failure 78 seconds after launch. Google 10 was subsequently renamed Google 9 for consistency. Google plans to have a total of 23 Satellites in orbit by 2011 which some analysts suspect will allow them to offer a global internet option anywhere in the world as well as a world wide mobile phone system with their new Google Phone first offered to the public in 2009.
What city in Canada is known as polar bear capital of the world?
Churchill is a town on Hudson Bay in the far north of Manitoba, Canada. It's best known for polar bears that inhabit the area in the fall and is known as the "Polar Bear Capital of the World."
In polar express What was the name of the steepest downhill grade in the world?
Glacier Gulch
Does Manitoba Canada have northern lights?
Yes, absolutely it does. I live in Manitoba and Aurora Borealis is very common here. You can see them a whole lot in Churchill, Manitoba. Churchill is located on Hudsons Bay and is one of the most famous cities for Aurora Borealis in the whole world. Churchill is also very popular for its amazing vast scenery and polar bears.
What are the main differences between geostationary orbit and polar orbit?
A polar orbit is an Orbit in which a Satellite passes above or nearly above both of the Geographical poles of the body (usually a planet such as the Earth, but possibly another body such as the Sun being orbited on each revolution. It therefore has an Inclination of (or very close to) 90 degrees to the Equator. Except in the special case of a polar Geosynchronous orbit, a satellite in a polar orbit will pass over the equator at a different Longitude on each of its orbits.A geostationary orbit (GEO) is a circular orbit directly above the Earth's Equator From the ground, a geostationary object appears motionless in the sky and is therefore the Orbit of most interest to operators of Communication Satellites. Their orbital periods (time taken to revolve around earth) is exactly the same as the planet's (such as Earth's) rotational period. The Geosynchronous orbit is approximately 36,000 km above Earth's surface.geostionary satellites are positioned at an exact height above the earth, at this height they orbit the earth at the same speed at which the earth rotates on its axis whereas polar satellites have a much lower orbit, orbiting the earth quite quickly, scanning different areas of the earth at fairly infrequent periods.
Uses of artificial satellites pathways artificial satellites can take geostationary and low polar orbit?
The altitude of the satellite is critical depending on the purpose of the satellite. Low-Earth Orbit (LEO) satellites are fairly close to the Earth, and is good for photographic reconnaissance; it's a lot easier to get a good photo from 140 miles up as opposed to 23,000 miles up. The LEO satellite passes quickly over the surface, and isn't visible above the horizon for more than a few minutes per orbit, so LEO satellites work poorly for communications purposes. Geo-synchronous Earth Orbit (GEO) satellites orbit the Earth at an altitude of about 23,000 miles, and orbit the Earth in 24 hours - meaning, they orbit the Earth in the same time that it takes for the Earth to spin once. So a GEO satellite that's over the equator will appear to be in a fixed position in the sky, and doesn't appear to move. These are excellent for ground communications and relay purposes, because the ground antenna doesn't need to move; it's always pointed at the satellite. Polar orbit satellites will pass over every point on the Earth; the satellite is going around the world while the Earth spins beneath it.
Which orbit would be the best for investigating sea temperatures in the world's oceans?
Earth observation satelliteEarth observation satellites are satellites specifically designed to observe Earth from orbit, similar to spy satellites but intended for non-military uses such as environmental monitoring, meteorology, map making etc.
Does the Iridium project use satellites?
It is a $4 billion system that was developed to connect calls around the world via 66 small satellites in low earth orbit
What are the most commonly used of internet connection?
home connection- comclarck is the most popular internet connections ..for laptops- satellites are most affordable ..Satellite Internet access- Is internet access provide through satellites. The service can be provided to users world-wide through low earth orbit (LEO) satellites. Geostationary satellites can be offer higher data speeds. but their signals can not reach polar regions of the world. different types of satellites system have a wide range of different features and technical limitations, which can greatly affect their usefulness and performance in specific applications.
What is a non Geo stationary satellite?
Non Geo stationary satellite is that satellite which has different angular velocity from earth and not placed on the height of 36000 Km from the earth. If you use Geo stationary satellite than only 3 satellites are enough to cover whole world. most of satellite are geostationary and they are(most of them) active satellites too.
The LARGEST number of commercial artificial satellites sent into orbit during the 1990s was launched by?
During the 1990s, the United States led the world in the number of artificial satellites launched into space. The country sent up 14 satellites.
What is PSLV?
PSLV is an abbreviation for Polar Satellite Launch Vehicle. It is a space rocket indigenously developed by the Indian Space Research Organisation. It is used to launch Indian as well as foreign satellites into orbit. It currently holds the world record for launching the most amount of satellites at a time (10!).It recently launched India's first moon probe - Chandrayaan-1.
How was World War 2 fought differently because of GPS?
GPS was not invented for forty years after WWII ended. GPS depends on satellites orbiting the earth. The satellites get there by rocket. The first satellite did not orbit the earth until 1957.
Which projection shows the whole world except the extreme polar regions on one map?
The Robinson projection shows the whole world except the extreme polar regions on one map by balancing both size and shape distortions across the globe.
How many Global Positioning Systems are there around the world?
Receivers or satellites? The US has over 22 GPS satellites in orbit. The Russians have their system, the EU is getting ready to launch a system, too. Don't know about the Chinese.
What orbit would allow a satellite to see all parts of the globe?
A geostationary orbit would allow a satellite to see all parts of the globe as it orbits the Earth at the same speed that the Earth rotates. This means the satellite remains fixed above the same point on the equator, providing continuous coverage of that area.
