I think you'd have to be more than careful. If the Iconians know there's an artifact down there, and they see four unusual and mismatched vessels descend on the planet, they should have any exceuse to shoot you, as suspected treasure hunters. Your superiors only want information gathered, and while I won't condone snatching that artifact, all I say is that we should find some exceuse for going down there, such as receiving a distress signal, months prior or something. If we start a conflict with the Iconians, there will be two parties angry at us.