Treasure map: Am I using it right?

[DRNewcomb]

After killing a pirate I collected a treasure map. I took the map and some probes to the planet, which was not previously explored. I set out the probes and "clicked" the map in the "activate" slot while still on the planet. I left and came back when the search was completed and found more or less the usual collection of stuff. Nothing special.

Am I doing it right?