launched from USA

USA-242

Success
MAY 15201321:38:00 UTC

An Atlas V 401 launched GPS IIF-4, the fourth Boeing-built Block IIF navigation satellite for the US Air Force, also designated SVN-66 and nicknamed Vega after the star. It was intended to replace the 17-year-old USA-117 (SVN-33).

launched from SLC-41 Canaveral

aboard Atlas V 401 into MEO

Payload

USA-242 (GPS IIF-4)

Navigation

last updated Oct 8, 2026