urn:nasa:pds:context:instrument:swea.maven 1.0 1.4.0.0 Product_Context Solar Wind Electron Analyzer 2015-03-24 1.0 Initial version. urn:nasa:pds:context:instrument_host:spacecraft.maven instrument_to_instrument_host Solar Wind Electron Analyzer Energetic Particle Detector The Solar Wind Electron Analyzer (SWEA) is a symmetric, hemispheric electrostatic analyzer designed to measure the energy and angular distributions of solar wind electrons and ionospheric photoelectrons in the Mars environment. The instrument is a collaboration between the Space Sciences Laboratory at the University of California, Berkeley (UCB-SSL) and the Institut de Recherche en Astrophysique et Planétologie (IRAP) in Toulouse, France. SWEA is closely based on two instruments of the same name currently operating on the twin STEREO spacecraft.