I ran into the same thing today trying to do an orbit contract. Here are some details: http://imgur.com/WsRoPEB,pDda0Ry After receiving some information, I looked up my LAN value in my persistence file and found this under my craft: LAN = 334.947554037965 I'm guessing this might be the issue, since it doesn't match up with the requirements. Without mechjeb or other addons showing this info, is there any way to be able to do these contracts?