I still can't get my head round why CRT need a tracker system for something that doesn't move - the problem Pontificating Peter first started us off with..
Have I got this wrong? I don't think anyone from CRT has given any indication that they might even be considering such an idea. The original post arose because, in another place, an individual expressed a personal opinion. I am quite sure that CRT have far more important subjects on their priority list.
Now I might have the idea that such a device would be useful - for example if all locks and lift bridges were hydraulically operated by remote control and linked to a central computer, then the tracking device could be used to get the lock ready in advance of a boats approach and the gates could be opened in readiness, similarly lift bridges could be raised for approaching boats. This would have the added advantage of stopping people from turning locks round, setting locks too far in advance of their approach or arguing about who should have the lock first. The possibilities are endless but don't worry, none of this is likely to happen in real life.