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 is the difference of geostationary and polar orbiting satellite?
In geostationary orbits, the satellite hovers over a fixed geographical location. Polar orbits are closer to Earth and move with respect to the Earth’s surface, crossing the poles several times each day and observing different longitudes on each pass (as shown in the figure below).
What is called a polar satellite?
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly another body such as the Moon or Sun) on each revolution. A satellite in a polar orbit will pass over the equator at a different longitude on each of its orbits.
What are geostationary satellites explain?
A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometers (22,300 miles) directly over the equator, that revolves in the same direction the earth rotates (west to east). BGAN, the new global mobile communications network, uses geostationary satellites.
What is polar satellite Class 11?
These are low altitude satellites. This means they orbit around earth at lower heights. They orbit around the earth in North-South direction. Whereas earth is moving from East to West.
What are the examples of polar satellite?
Polar satellites are usually used as earth observation purpose. Landsat, NOAA, SPOT, ERS are few examples of polar satellite.
What are polar satellites in physics?
Polar satellite: Polar satellites are low altitude satellites. They will revolve around the poles of the earth in a north -south direction. Time period of polar satellites is nearly 100 minutes.
What is meant by polar orbiting?
A Polar Orbit (PO) is an orbit in which a satellite passes above or nearly above Earth’s North and South poles on each revolution. It, therefore, has an inclination of (or very close to) 90 degrees to the equator.
Where are polar orbiting satellites?
Polar orbiting satellites constantly circle the Earth in an almost north-south orbit, passing close to both poles. The POES satellite system offers the advantage of daily global coverage, by making nearly polar orbits 14 times per day approximately 520 miles above the surface of the Earth.
What is non geostationary satellite?
Non-geostationary (NGSO) satellites occupy a range of orbital positions (LEO satellites are located between 700km-1,500km from the Earth, MEO satellites are located at 10,000km from the Earth), and do not maintain a stationary position, but instead move in relation to the Earth’s surface.
How many polar orbiting satellites are there?
NOAA has four POES, Polar Operational Environmental Satellites, currently in orbit. The satellites are named chronologically, based on launch date. NOAA 15 was launched in 1998, NOAA 16 was launched in 2000, NOAA 17 was launched in 2002 and NOAA 18 was launched in 2005.
What is geostationary satellite and its uses?
An artificial satellite which revolves around the Earth in stable circular orbit in equatorial plane,having same direction and period of revolution as that of the rotation of the Earth about it’s own axis is known as geostationary satellite. Uses: 1. To send radio and TV signals from one place to long distance.
What is Polar Satellite and its uses?
Polar Satellite: Polar satellites revolve around the earth in a north-south direction around the earth as opposed to east-west like the geostationary satellites. They are very useful in applications where the field vision of the entire earth is required in a single day.
What are the 3 types of satellites?
Types of Satellites and Applications
- Communications Satellite.
- Remote Sensing Satellite.
- Navigation Satellite.
- Geocentric Orbit type staellies – LEO, MEO, HEO.
- Global Positioning System (GPS)
- Geostationary Satellites (GEOs)
- Drone Satellite.
- Ground Satellite.