4D——NASA

nasa 4dNASA's Space Physics Data Facility (SPDF) Heliophysics studies the nature and dynamic interactions of the Sun, the heliosphere, and the plasma environments of the planets4D BADA-based Trajectory Generator and 3D Guidance Algorithm Eduardo Sepúlveda Palacios#1, Marcus Johnson*2 #Universidad Autónoma de Nuevo León. Pedro de Alba