Northrop Grumman says its final Defense Support Program satellite—DSP flight 23—is well on its way toward launch with the recent mating of the satellite and its launch vehicle payload adapter. The DSP is slated to launch April 1 aboard a Boeing Delta IV heavy evolved expendable launch vehicle from Cape Canaveral AFS, Fla.
Small satellites meant to improve the way the U.S. measures Earth’s magnetic field—an option to expand the military’s position, navigation, and timing enterprise—launched March 30 from Vandenberg Space Force Base, Calif.