Fourth ULA Launch in Three Months Boosts Latest GPS Block IIF to Medium Earth Orbit

Rising into a gloomy ball of low-lying fog, the first Delta-IV of 2015 took flight at 2:36 p.m. EDT Wednesday, 25 March, delivering the ninth Global Positioning System (GPS) Block IIF satellite into orbit. Photo Credit: Mike Killian / AmericaSpace

United Launch Alliance (ULA)—the Centennial, Colo.-based launch services operator of Atlas V, Delta IV […]

United Launch Alliance Delivers Next Generation GPS Satellite to Orbit on Delta-IV's 26th Mission

ULA’s Delta-IV lofting the GPS IIF-6 satellite to orbit on the Delta’s 26th flight. Screen Grab Credit: ULA / AmericaSpace

A beautiful Florida sunset was outdone by a United Launch Alliance (ULA) Delta-IV rocket this evening with the successful delivery of the next Global Positioning System (GPS) IIF satellite to a semi-synchronous 11,000-mile-high circular orbit for the […]

Delta IV Delivers GPS Satellite into Orbit

A United Launch Alliance Delta IV Medium rocket launched right on time at 8:10 a.m. EDT with its GPSIIF3 payload. Photo Credit: Mike Killian / Zero-G News

A few weeks shy of the tenth anniversary of its maiden voyage, United Launch Alliance’s venerable Delta IV booster has triumphantly launched a new Global Positioning System […]