The 10th GPS IIF was successfully launched into orbit July 15.
The launch, at 11:36 a.m. EDT from Cape Canaveral Launch Complex 41, used an Atlas V Evolved Expendable Launch Vehicle (EELV) 401, according to a United Launch Alliance announcement.
Related: Another GPS IIF reaches orbit
"In just a few days, on July 17, the Global Positioning System will celebrate the 20th anniversary of GPS achieving fully operational status," said Jim Sponnick, United Launch Alliance vice president for Atlas and Delta programs. "ULA is very proud to play a role in delivering these satellites to orbit, with Atlas and Delta rockets having launched all 58 operational GPS satellites."