What is the technology used to launch geo-stationary satellites?

CBSE Class 11-science Answered

What is the technology used to launch geo-stationary satellites?

Asked by krishnan iyer | 13 Nov, 2010, 07:56: PM

Expert Answer

Dear student

A high altitude, geosynchronous orbit lies above the equator at an altitude of about 22,300 miles (35,900 kilometers). A satellite in this orbit travels around Earth's axis in exactly the same time, and in the same direction, as Earth rotates about its axis. Thus, as seen from Earth, the satellite always appears at the same place in the sky overhead. To boost a satellite into this orbit requires a large, powerful launch vehicle.

Space shuttles carry some satellites into space, but most satellites are launched by rockets that fall into the ocean after their fuel is spent. Many satellites require minor adjustments of their orbit before they begin to perform their function. Built-in rockets called thrusters make these adjustments. Once a satellite is placed into a stable orbit, it can remain there for a long time without further adjustment.

The trick in launching the geostationary satellites is to ensure that they move in the direction same as that of the earth's rotation & with the same orbital speed. Then they will remian stationary wrt earth.

For more detailed study of geo stationary satellites we advise you to explore the url given belwo:

http://www.nasa.gov/worldbook/artificial_satellites_worldbook.html

We hope that clarfies your query.

Regards

Team

TopperLearning

Answered by | 14 Nov, 2010, 06:59: PM