ExoCube is a space weather satellite sponsored by the National Science Foundation. It’s primary mission is to directly measure the density of Hydrogen, Oxygen, Helium and Nitrogen in the upper atmosphere. Cal Poly is designing the core satellite bus, while the scientific payload is supplied by NASA Goddard Space Flight Center (GSFC). The University of Wisconsin, Madison and Scientific Solutions, Inc. (SSI) are developing the scientific objectives and providing guidance for instrument development.
The ExoCube scientific payload includes a scientific instrument that is developed by NASA GSFC, in collaboration with University of Wisconsin, Madison, Scientific Solutions, Inc., and Cal Poly. ExoCube will characterize [O], [H], [He], [N2], [O+], [H+], [He+], [NO+], and total ion density by taking in-situ measurements within the exosphere, while taking particular interest in orbital locations above various radio observatories. ExoCube uses an active control system to point itself in the desired direction for measurements, and uses passive control to maintain this orientation.