595th Space Group The 595th Space Group was a unit of the United States Air Force . It was part of the Space Innovation & Development Center at Schriever Air Force Base , Colorado . It was inactivated in April 2013 . Mission . The Mission of the 595th Space Group ( 595 SG ) was to deliver confidence in Air Force intercontinental ballistic missile ( ICBM ) and space systems by conducting operational test , developing space control tactics and techniques , demonstrating cutting - edge technologies , providing advanced training and operating a space test and training range . The 595 SG was the focal point for coordinating all test activities between HQ AFSPC , 14th Air Force , 20th Air Force , space wings , test squadrons and external agencies . Units . The 595 SG comprised seven squadrons : The 595th Operations Support Squadron enhances air and space force readiness by providing operations and intelligence support to the test , education , tactics and force development missions of the 595 SG and the Space Innovation and Development Center . The 17th Test Squadron validates and enhances warfighter capabilities through testing and evaluation of space systems . The 17 TS is responsible for planning , executing and reporting on all force development evaluation , tactics and concepts testing and command - directed testing of AFSPC ' s space assets . The 14th Test Squadron is a U . S . Air Force Reserve unit augmenting the 17 TS and provides a specific support for rapid acquisition programs and information assurance tests . The 576th Flight Test Squadron executes the Joint Chiefs of Staff - directed ICBM Force Development Evaluation test program and executes AFSPC ' s operational tests for the Department of Defense . The 576 FLTS performs ground , flight and space system tests in operationally representative environments and collects , analyzes and reports performance accuracy , anomaly assessment , reliability , aging and surveillance data to the Joint Staff , Air Staff , U . S . Strategic Command and other higher headquarters . The 25th Space Range Squadron is responsible for the operation of the Space Test and Training Range , a capability that allows units to exercise space capabilities in a safe , secure and realistic environment while eliminating the risk of unintended collateral effects . The 25 SRS owns the advanced concepts environment , which simulates a target , weapon system and environment for training and rapid reaction prototype development . The 25 SRS has also deployed equipment and personnel to support theater operations . The 3d Space Experimentation Squadron is AFSPC ' s premier organization for space - based demonstrations , pathfinders and experiments . The unit identifies concepts of employment , training , education and technical skill sets required to field selected future AFSPC missions . The 3 SES will develop a core cadre of space professionals to serve as subject matter experts for all future AFSPC space - based endeavors , demonstrate operational utility of selected demonstrations and apply lessons learned from demonstrations and pathfinders for use in future initiatives . The Advanced Space Operations School provides world - class advanced training on space sub - systems and theater deployment support to enhance delivery of space and missile capabilities to America and warfighters . The ASOpS also offers introductory space training to senior leadership within the Department of Defense and other non - space professionals . UPDATE : As of September 2012 , The Advanced Space Operations School ( ASOpS ) no longer falls under the 595th Space Group . The ASOpS is now a Direct Reporting Unit under Air Force Space Command ' s A3 .