Surface Mounted Impedance Probe Antenna 3U-CubeSat Payload

Collaborations utilizing small spacecraft in near-earth orbit between the U. S. Coast Guard Academy (CGA), Navy Research Lab (NRL), the U. S. Naval Academy (USNA), Old Dominion University (ODU),  and the Air Force Institute of Technology (AFIT) have initiated scientific and engineering space-based experiments. We have constructed an impedance probe payload for launch in Fall 2021 derived from the existing ‘Space PlasmA Diagnostic suitE’ (SPADE) mission operating from NASA’s International Space Station. Currently, both space and laboratory plasmas are investigated with AC impedance measurements using a radio frequency antenna. Plasma electron density data collected from the 3U CubeSat will however use an innovative surface mounted dipole antenna to gather the required sheath-plasma and plasma resonance information. On that same launch, a compact multispectral ‘Pixel Sensor’ with a 450 nm - 1000 nm spectral range will add to the motion and position sensors baselined in previous launches. We have designed, built, and assembled custom components while and conducted laboratory experiments in both NRL and AFRL plasma chambers comparable to low earth orbit (LEO) densities. Impedance probe optimization, data collection obstacles, solutions, and procedures will be reported.