The crossword solution for the term 'LANDED (UPON)' is ALIT, which is an acronym for 'Airborne Laser Inertial Technology'. This technology is used to measure the position and orientation of an aircraft in flight. It is a combination of inertial navigation systems and laser-based navigation systems, which provide accurate and reliable navigation data. ALIT is used in many applications, including military, commercial, and civil aviation.