[P-EM10] Dynamics of Magnetosphere and Ionosphere

[PEM10-09] Wave telescope technique beyond 4-point tetrahedral sensor array

*Yasuhito Narita¹, Owen W. Roberts¹, Theodore Broeren², Kristopher G. Klein², Leonard Schulz³, Rungployphan Om Kieokaew⁴ (1.Space Research Institute, Austrian Academy of Sciences, Austria, 2.University of Arizona, USA, 3.Technische Universitaet Braunschweig, Germany, 4.Institut de Recherche en Astrophysique et Planetologie (IRAP), Toulouse, France)

Keywords:wave analysis, multi-point measurements

The concept of using an array magnetometer as the wave telescope for surveying the wavevectors in space was successfully implemented to four-point tetrahedral spacecraft missions over the last two decades such as Cluster (ESA, since 2000) and MMS (NASA, since 2015) in near-Earth space. The wave telescope technique is based on Capon's minimum variance projection. Its mathematical structure and algorithm can be extended to a constellation beyond four-point tetrahedral sensor. Future applications to the N-point wave telescope technique fortuitous conjunctions of the Cluster and MMS missions (8 spacecraft total) and HelioSwarm (9 spacecraft, launch planned in 2028 or 2029). Choice of different adaptive filtering methods, applications to waves and turbulence studies, and limits due to the N-point constellation are presented.