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Artificial Satellites
Artificial Satellites are objects launched from earth to orbit earth or other planets. Satellites are used for communication, remote sensing, weather forecasting, and other purposes. This category is for questions about satellites in general or specific satellites.
1,932 Questions
What is the purpose of a satellite antenna?
A satellite antenna has one very important purpose. It is designed to allow a home to receive a satellite signal, which then allows users to receive a television signal.
A satellite is projectile that falls ot of earth rather than into earth?
Satellites are in constant free-fall. This simply means they are constantly being accelerated by earth's gravity. However, an orbiting satellite's lateral motion is sufficient that the acceleration caused by the earth's gravity causes it to continually circle the earth, instead of crashing to the ground.
What is the difference between weather satellites from communications satellites?
Wheather satellites are used to take close pictures of the earth . Communication satellites are used for communication. Ex(in the old days if you sent a letter from Canada to Russia it would take 25 days. Now you write in MSN, it goes to the satellite and to the reciever.)
Does communication satellites transmit UV rays?
No.
No point, radio waves have much better range than UV rays.
Will your satellite navigation work in Spain?
Yes - as long as you have uploaded the Spanish street atlas to it ! It would still work without it, but you wouldn't know which roads you were travelling on without constantly looking at street signs !
What is the distance between 2 geostationary satellite?
Based on 2 degree separation (some are closer) approximately 920 miles
A satellite in orbit around earth is always falling towards earth?
Yes. They accelerate (change the direction of their movement) towards Earth, and this may be labelled as "falling".
Yes. They accelerate (change the direction of their movement) towards Earth, and this may be labelled as "falling".
Yes. They accelerate (change the direction of their movement) towards Earth, and this may be labelled as "falling".
Yes. They accelerate (change the direction of their movement) towards Earth, and this may be labelled as "falling".
What type of communications equipment can you find on an airliner?
You can not find communications equipment, you can find avionics as it's called in english. Avionics is basically the electronic systems used on aircraft, artificial satellites and spacecraft.
How does a GPS satellite work with a GPS device?
signals from at least 3 satellites send signals to and receive signals from the gps which are then triangulated to give the exact position of the GPS unit. Most GPS units are receive only. That is they must receive positional and timing information from the GPS satellite constellation. The internal processor them computes your position based upon this data(triangulation). Generally receiving data from three or more satellite's is needed to be produce a good fix (your position) but this is also dependent upon the geometry of the satellites. The best fixes are obtained when you have signals from three or more satellites which are geometrically separated by 45 degrees.
What did sputnik do while in orbit?
Sputnik was a very simple satellite. It emitted a radio signal that was received by Russia radio observers on the ground. This pinpointed its speed, altitude, and elliptical path. Spudnik was in a very low orbit however, and after a few months it reentered the earth's atmosphere and was destroyed.
The sputnik was a satellite that produced signals so that we could receive and extract information via web and radio. So the next time we use the internet or turn on the radio, we should remember THE SPUTNIK.
Was there anybody in sputnik 2?
No. Nobody wanted to go because there was never any plan to bring it back.
So they barbarically slaughtered a dog instead, and televised the whole thing.
The purpose was to demonstrate how technologically advanced the USSR was.
If there were any civilized people who saw it, it also showed them what kind of
monsters were responsible for the spectacle.
PS: The Russian space program is the only way we have of getting people and
supplies to and from the International Space Station today.
Did the USSR launch the first space satellite?
* Artificial Earth satellite Sputnik 1
The first successful satellite launched by the Russians (The Soviet Union at the time) was Sputnik 1 on October 4, 1957. It was released during the Cold War and it caused a space race between the Americans and the Soviet Union. Apart from being the first satellite to be launched into space, it also helped us to better understand the upper atmosphere, including the radiation belts and the ionosphere. It traveled 18000 miles per hour so it only took about 92 minutes to travel around the Earth.
* Russian satellite countries
Countries of Eastern Europe adopted Communist governments following World War II and were called "satellite" countries of the USSR, which was dominated by Russia. They were collectively known as the Warsaw Pact countries for the military treaty to which they were signatories. The first country was Poland, partly occupied by the USSR in a 1939 arrangement with Nazi Germany.
Where is the hubble space telescope located?
The HST is located in space. It flies round the Earth once in 97 minutes; so the actual position is changing constantly.
What is the surface gravity of a comet?
I don't know the specific data, but I can tell you that g (acceleration due to gravity) = Gm/R2, where G is the universal constant of gravitation (about 6.67-11), m is the comet's mass, and R is it's radius.
What does one use a satellite finder for?
A satellite is used for establishing a connection with a third party, using a means of submitting binary code over a wavelength that can be sent through space, using an orbiting satellite dish to relay the information, and then have the information beamed back down to the receiver. This can be used for various purposes ranging from internet, radio, and television use.
What is terrestrial system for satellite communication?
A terrestrial system for satellite communication is one that facilitates. This includes the facilitation of audio, data, and any other communication.
What is the number of moons and satellites on the earth?
40000 million moons and 3000 trillion satilites
Is the geosynchronous satellites above the equator is follow an elliptical orbit?
All satellites follow an elliptical orbit - they are darn close to circular, but even a circle is an ellipse.
One of Saturn's satellites revolves in a?
One of the moons of Saturn revolves clockwise around the planet, while the other moons revolve in normal solar system direction, counterclockwise. Why this moon behaves differently is not known.
Why is it important for satellites to be outside the earths atmosphere?
Satellites need to be out of the earth's atmosphere or the gravity would make them fall to the ground. In space, the satellites are also able to orbit the earth effortlessly because they have less weight.
Yes, starts create their own light. However, they do not last forever. Once they burn out all of the hydrogen used to create the light, they die.
