Fuel harvester mechanics?

[liveware (OP)]

How are fuel harvesters intended to be used? I've built a tanker ship with a refueling module and a sorium harvester, moved into orbit around a planet with abundant sorium, but it doesn't seem to be harvesting any sorium. Is there an order of some sort that must be issued to start harvesting operations?

[SpaceMarine]

please see this video, it should help explain how it works.

[liveware (OP)]

Ok, it's seems the sorium harvester works only with gas giants. In my situation I was trying to harvest from Venus which did not work. However sending the ship to Jupiter does work.

Earth is safe again.