How do we get these? Is it the usual thing of having the appropriate two items in the SRV while scanning a Guardian obelisk?
Also - when you say "new sites" - do you mean the new Guardian Ruin sites or the new Guardian Structure sites?
Go to Mitchell (dock?) in the Meene system. You get a new Ram Tah mission, then go to the Guardian Structure sites and scan the obelisks like usual.