GSU are Geographically Separate Units, which although based at Schriever, are subordinate to a parent unit based at another location. United States Space Force Space Base Delta 1 50th Mission Support Group 50th Civil Engineer Squadron 50th Contracting Squadron 50th Force Support Squadron 50th Logistics Readiness Flight 50th Security Forces Squadron 50th Space Communications Squadron 21st Medical Group 21st Medical Squadron (GSU) Space Operations Command (SpOC) Space Delta 6 1st Cyber Operations Squadron 2nd Cyber Operations Squadron 22nd Space Operations Squadron Space Delta 8 2nd Space Operations Squadron 4th Space Operations Squadron 10th Space Operations Squadron (GSU) 50th Operations Support Squadron Space Delta 9 1st Space Operations Squadron 3rd Space Operations Squadron Delta 9 Operations Support Squadron Detachment 1 Space Training and Readiness Command (STARCOM) Space Delta 11 25th Space Range Squadron 527th Space Aggressor Squadron Space Delta 12 1st Test and Evaluation Squadron 3rd Test and Evaluation Squadron 4th Test and Evaluation Squadron 12th Delta Operations Squadron 17th Test and Evaluation Squadron United States Air Force Air Combat Command (ACC) Sixteenth Air Force Air Force Technical Applications Center Detachment 46 (GSU) Air Force Reserve Command (AFRC) Tenth Air Force 310th Space Wing Headquarters 310th Space Wing 310th Operations Group 6th Space Operations Squadron 7th Space Operations Squadron 19th Space Operations Squadron 310th Operations Support Squadron 310th Security Forces Squadron 310th Mission Support Group 310th Security Forces Squadron 310th Force Support Squadron 310th Communications Flight 710th Operations Group 8th Space Warning Squadron Detachment 1 (GSU) 926th Wing 926th Operations Group 14th Test Squadron (GSU) 26th Space Aggressor Squadron (GSU) 379th Space Range Squadron (GSU) United States Army Colorado Army National Guard 100th Missile Defense Brigade United States Navy US Naval Observatory USNO Alternate Master Clock Department of Defense United States Space Command Joint Task Force–Space Defense National Space Defense Center United States Strategic Command Joint Functional Component Command for Integrated Missile Defense Missile Defense Agency Missile Defense Integration and Operations Center National Reconnaissance Office NRO Operations Squadron See also Communications satellites Milstar Satellite navigation systems SolarStrong Space Test and Training Range References External links Schriever Air Force Base website History of Schriever Air Force Base Schriever AFB Installation Overview from AirForceUSA.org. Installations of the United States Air Force in Colorado Buildings and structures in El Paso County, Colorado Economy of Colorado Springs, Colorado 1985 establishments in Colorado Military installations established in 1985 Military installations in Colorado