I’ve just been reading quite a bit about the sad story of Malaysian Airways flight 370, the horrid way Malaysia and some other nations involved just don’t even attempt to do air traffic control. and a lot of claptrap about the GPS system and how it should have tracked MH370 right to it’s final resting place.
One thing I found in quite a few places were reference aftre reference to the GPS satellites being iin geostationary orbit. Well, hate to tell you this, but they are NOT. Note the neat animated graphic above from Trimble.