Built at Boeing‘s El Segundo satellite factory, GPS IIF Space Vehicle 2 (SV-2) was tested at Cape Canaveral Air Force Station in Florida from May through August in preparation for the launch of SV-1, the first of 12 GPS IIF next-generation navigation satellites. SV-2 successfully completed a consolidated system test (CST), which is a set of one-time, system-level design verification and validation tests involving the space vehicle, the ground-based control segment, and user equipment. In addition, GPS master control stations successfully commanded the space vehicle as they will do when the satellite is in operational orbit. SV-2 was also used as a “pathfinder” to validate transportation equipment and processes, as well as launch site test procedures and equipment.
Boeing is installing the final pieces of hardware on SV-1 and preparing it for its final cycle of environmental vacuum testing to confirm the spacecraft’s integrity for launch. SV-2 was returned to El Segundo on September 3rd and will follow SV-1 into environmental vacuum testing in preparation for its own launch. GPS IIF is the product of Boeing’s experience with 39 successful satellites from the GPS Block I and Block II/IIA missions and more than 30 years of teamwork with the Air Force. GPS IIF features twice the navigational accuracy of heritage satellites, more robust signals for commercial aviation and search and rescue, and greater resistance to jamming in hostile environments. GPS IIF will form the core of the GPS constellation for many years to come. GPS is a space-based, worldwide navigation system providing users with highly accurate, three-dimensional position, navigation and timing information 24 hours a day in all weather conditions.
