The PTR Group Inc. today announced that one of the space-based science instruments it helped develop, the Large Area Telescope (LAT) was successfully launched today from NASA’s Cape Canaveral Air Force Station in Florida onboard the Gamma-ray Large Area Space Telescope (GLAST)

spacecraft. The spacecraft was placed into orbit via a Delta II “Heavy” rocket. The PTR Group is a significant contributor to the LAT instrument, working with the Goddard Space Flight Center (GSFC) in Greenbelt, MD, the Naval Research Laboratory (NRL) in Washington, DC, and the Department of Energy's Stanford Linear Accelerator Center (SLAC) in Menlo Park, CA.

Details here