ATLAS Space Operations' Harmon Ground Station is a 3.7-metre fixed earth station at 497 Harmon Loop Road in Dededo, Guam. NASA's current ground-data systems chapter lists Harmon in the ATLAS global antenna network with S-band transmit/receive and X-band receive capability for routine satellite-to-ground communications. The FCC's 2025 grant identifies the site as ATLAS antenna HMGD-037A and records fixed-satellite-service operations at the published coordinate.