Help - Search - Members - Calendar
Full Version: Mars magnetism
Unmanned Spaceflight.com > Mars & Missions > Mars
alan
Mars crustal magnetism as measured by Mars global Surveyor:

Click to view attachment

I noticed the resemblance of parts of it to satellite tracks, but they are somewhat off center.

So I tried NASA's GISS map projector, and playing a hunch used the antipodes of the Borealis Basin as the center:

Click to view attachment

Has anyone read anything explaining why the curves they make should be roughly centered at the basin's antipodes?
serpens
Alternatively Sprenke and Baker provided a reasonably compelling explanation, taking into account true polar wander. The full paper can be found at Icarus Volume 147 Issue 1 (September 2000). Behind a paywall but a comprehensive abstract is here:

https://www.lpi.usra.edu/meetings/lpsc2000/pdf/1930.pdf
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Invision Power Board © 2001-2018 Invision Power Services, Inc.