If some system is so disconnected that their direction/location can't be adjusted remotely every few years or so, then the current leap second data doesn't work for them anyways - they aren't scheduled far in advance, and that system won't get the info when a new leap second is announced.

By the way, do solar panel servos really have the proper sun-time set in them? I mean, if one panel is 200 feet west of another, is its clock set to be 2 seconds later?