PhysLink.com Logo

Question

Is it possible to place a satellite in geostationary orbit over the north pole?
Asked by: Ken Bruckart

Answer

Clipart of a satellite orbiting the EarthNo, a geostationary orbit must be in the plane of the Earth's equator. That way, by matching its orbital speed with the speed of a point on the equator, the moving satellite appears to be stationary over that point. Any other orbit would have the satellite appear to drift above and below the equator during the course of a day.

A geosynchronous orbit matches the Earth's rotational speed, but only allows a satellite to appear over the same spot once per day. Depending on your stretch of that definition, a satellite in a perfect polar orbit would pass over each pole once per day and might be called 'geosynchronous', but like the time of day at the poles the terminology becomes ambiguous.
Answered by: Paul Walorski, B.A., Part-time Physics/Astronomy Instructor






Support US

Our server costs have gone up and our advertising revenue has gone down. You do the math! If you find our site useful, consider donating to keep us going. Thanks!


Science Quote

'Our loyalties are to the species and the planet. We speak for Earth. Our obligation to survive is owed not just to ourselves but also to that Cosmos, ancient and vast, from which we spring.'

Carl Sagan
(1934-1996)





All rights reserved. © Copyright '1995-'2018 PhysLink.com   Privacy Statement | Cookie Policy