2.3.1 spase://SMWG/Instrument/ICON/IVM The Ion Velocity Meter IVM 2021-07-20T13:41:27Z The IVM consists of two planar thermal ion sensors, a retarding potential analyzer (RPA) and an ion drift meter (IDM). National Aeronautics and Space Administration; Dr. Rod Heelis National Aeronautics and Space Administration Explorers Program contracts NNG12FA44C spase://SMWG/Person/Roderick.A.Heelis PrincipalInvestigator Additional information on ICON https://en.wikipedia.org/wiki/Ionospheric_Connection_Explorer More details on the ICON spacecraft. Additional information on ICON https://icon.ssl.berkeley.edu/ ICON spacecraft Homepage. The Ionospheric Connection Explorer mission: mission goals and design https://doi.org/10.1007/s11214-017-0449-2 Space Science Reviews, 214:13 (36pp.). Public access. DOI: 10.1007/s11214-017-0449-2 Ion Velocity Measurements for the Ionospheric Connections Explorer https://doi.org/10.1007/s11214-017-0383-3 Space Science Reviews, 212(1-2), pp.615-629. DOI: 10.1007/s11214-017-0383-3 IonDrift Ion Velocity Meter 2019-10-11T02:00:00Z spase://SMWG/Observatory/ICON