I am new to the site.

I am a surveying student working on a report about the GPS system that is in the works for mars.

How are the rovers located on the surface of the planet?

What I mean is, on Earth everything that is surveyed is ties to a reference monument by a bearing and a distance.

Is the same type of system used on Mars? What is the origin of all navigation calculations? Is it tied to Earth?

Thanks for any info.

Joe Young
Oregon Institute of Technology
youngjo@oit.edu