There isn't but you can break it down into simpler problems.
The first is to have an object follow a defined path. There are a few solutions you can find with a forum search, including some behaviors to help out.
The second problem is to position an object an radius from another. Again a forum search for orbit will come up with a few ways.
Here's one possible implimentation
https://dl.dropboxusercontent.com/u/542 ... ollow.capx