How come there are no satelite sweepers?

[gregebowman]

I was in a game awhile back, and there were minefields and satelite Groups stationed at warp points. I could create a fleet of minesweepers, but how come I can't create a fleet of satelite sweepers? It seems to me that the principle would be the same. The only solution I could come up with was to create drones, and send them in one at a time. It's really the first time I used drones, so maybe there's a better way of doing that. What can one do?