Moon's gravitation field analyzed, explaining abnormalities.

[Ruedii]

It's been known for some time that Earth's Moon has an abnormal gravitational field with some regions having higher gravity than others, causing objects in low orbit to veer off course when going over certain points.

After mapping the gravitational field scientists have finally come up with a theory as to why. They believe it has to do with how the crust of the Moon restructures after a large meteor impact.

http://web.mit.edu/newsoffice/2013/an-answer-to-why-lunar-gravity-is-so-uneven-0530.html

[magnemoe]

Yes some of the big craters have very high gravity, this will actually deorbit low flying satellites pretty fast unless they use rcs.

Read another article about it, on the edge of the craters you could get an .5 degree offset between vertical and gravity down.

[Jokurr]

Yeah I saw this a few days ago, interesting stuff .