[r9etb]

Some way cool stuff. Note that they're doing really precise orbit determination on both vehicles, plus relative navigation between the two vehicles. Pretty clever approach -- up to now, this has been done using tracking data for lots of different, individual satellites.

[yhwhsman]

Watching the animation of it's findings, I'm amazed at how much the gravity field varies. It appears that each continent has a band of higher gravity along one coastline. Wonder if that's why the continents are placed where they are.

I'm going to keep an eye on this, am curious to see how much the gravity field fluctuates from time to time.

Yhwhsman