Good tutorial for KEO missions?

[Jestersage]

How do I position a KEO satellite for mission purpose (i.e. right above a certain target)?

[bewing]

It's tricky. That's why it's a 3-star contract.

The way I do it is to be in a medium-altitude nearly circular orbit. You calculate (by eye) approximately how many degrees you are gaining per orbit on the ground station.

When you are half that many degrees behind the station, you burn to put your Ap at the right final altitude. That should get you very close to the right spot -- then you circularize. To complete the contract, you have to be just a little ahead of the ground station. So when you get there, if the contract says you are not "above" yet, you have to judge whether you are still a tiny bit too far ahead, or too far behind. Then make your orbit be just a little too big or too small so you slow down or catch up that last little bit.