ICON
The Ionospheric Connection Explorer studies the frontier of space: the dynamic zone high in our atmosphere where Earth weather and space weather meet. The ICON science payload sits on an Orbital ATK LEOStar-2 spacecraft. With the payload attached, the spacecraft weighs approximately 600 pounds...
www.nasa.gov
Source
Where does Earth's atmosphere end and space begin? This and other questions soon will be answered by NASA’s Ionospheric Connection Explorer, or ICON, satellite. Get ready to watch as the Pegasus countdown reaches T-Zero from its carrier aircraft flying near the Kennedy Space Center.