Northrop Completes Preliminary Design Review for Next-Gen OPIR by AvioBlog · 26 Giugno 2020 AZUSA, Calif.–– Northrop Grumman Corporation and Ball Aerospace have successfully completed the preliminary design review (PDR) for the Next-Generation Overhead Persistent Infrared (Next Gen OPIR) Geosynchronous (GEO) Block 0 mission payload. Next-Gen OPIR is a satellite system that will provide… Share