What are the uses of geostationary satellites?
Geostationary satellite imagery has been used for tracking volcanic ash, measuring cloud top temperatures and water vapour, oceanography, measuring land temperature and vegetation coverage, facilitating cyclone path prediction, and providing real time cloud coverage and other tracking data.
Why geostationary satellites are used for communication?
Geostationary orbit (GEO) This is because it revolves around the Earth at Earth’s own angular velocity (one revolution per sidereal day, in an equatorial orbit). A geostationary orbit is useful for communications because ground antennas can be aimed at the satellite without their having to track the satellite’s motion.
What are the uses of geostationary and polar satellites?
Satellites with polar orbits are used for monitoring the weather, military applications (spying) and taking images of Earth’s surface. Geostationary satellites take 24 hours to orbit the Earth, so the satellite appears to remain in the same part of the sky when viewed from the ground.
What is the main observation advantage of a geostationary satellite?
The geostationary orbit has the advantage that the satellite remains in the same position throughout the day, and antennas can be directed towards the satellite and remain on track.
What are polar orbiting satellites used for?
Polar orbiting satellites provide imagery and atmospheric soundings of temperature and moisture data over the entire Earth. Geostationary satellites are in orbit 22,000 miles above the equator, spin at the same rate of the Earth and constantly focus on the same area.
What are 5 things satellites are used for?
Global Positioning Systems (GPS). GPS is used by almost anyone that has a modern smartphone or a navigation system in their car.
Why are geosynchronous satellites important?
A geosynchronous orbit is a high Earth orbit that allows satellites to match Earth’s rotation. Located at 22,236 miles (35,786 kilometers) above Earth’s equator, this position is a valuable spot for monitoring weather, communications and surveillance.
What are the advantages and disadvantages of geostationary orbit?
➨It is ideal for broadcasting and multi-point distribution applications. ➨Ground station tracking is not required as it is continuously visible from earth all the time from fixed location. ➨Inter-satellite handoff is not needed. ➨Less number of satellites are needed to cover the entire earth.
What is the difference between geostationary and polar satellites?
Polar satellite revolves around the poles. The difference between the Polar Satellites and Geostationary Satellites are as follows: 1. Polar satellite revolves around the poles or in the north-south direction around the earth but geostationary satellite revolves in the direction of the earth or east-west direction.