2.7.1 spase://ESA/Catalog/Helios/Shocks Helios Shocks Catalog 2026-04-27T12:39:33 List of interplanetary shocks observed by the Helios spacecraft between 1974 and 1985. Provides shock parameters for interplanetary shocks associated with solar energetic particle events listed in the SERPENTINE Helios (historical) SEP event catalog. spase://SMWG/Person/Nina.Dresing Author spase://SMWG/Person/Jan.Gieseler Author spase://SMWG/Person/Olga.Y.Uritskaya MetadataContact spase://SMWG/Repository/SERPENTINE https://data.serpentine-h2020.eu/catalogs/shock-helios/ HTML spase://SMWG/Instrument/Helios1/Ephemeris spase://SMWG/Instrument/Helios2/Ephemeris InterplanetaryShock 1975-07-29T22:59:00 1981-11-23T15:31:00 ID Housekeeping Spacecraft Other Date [UTC] Temporal Time, [UTC] Temporal Shock normal [RTN] Other Magnetic Field compression ratio Bd/Bu Other Plasma Density compression ratio Nd/Nu Other Shock angle [deg] Orientation Shock speed [km/s] Velocity Alfven Mash number MA Other Magnetosonic Mach number Mms Other Associated SEP events WebResource Comments Remark