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The science instruments of BepiColombo’s Mercury Magnetospheric Orbiter. There are five instrument suites in total, several of which have multiple subsystems.
MDM: Mercury dust monitor
MAST-MGF/SC (MMO-MAG): Magnetometer / magnetic sensors
MPPE: Mercury plasma particle experiment (MIA: Mercury Ion Analyser, HEP: High-energy particle; ENA: Energetic neutrals analyser; MSA: Mercury mass spectrum analyser)
MSASI: Mercury sodium atmospheric spectral imager
PWI: Plasma wave investigation; (WPT: Wire probe antenna; MEFISTO: Mercury electric field in situ tool)
In this view only the MDM and some subsystems of MPPE are visible; see this image for details of the other instruments.