4D~

nasa 4dEstablished in 1958, the National Aeronautics and Space Administration leads the United States' efforts in space exploration and aerospace research. On the ground, NASA uses FacilitatePro,4D BADA-based Trajectory Generator and 3D Guidance Algorithm Eduardo Sepúlveda Palacios#1, Marcus Johnson*2 #Universidad Autónoma de Nuevo León. Pedro de Alba