{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Planetary Data System", "hasEmail": "mailto:pds-operator@jpl.nasa.gov"}, "description": "The Cassini Magnetospheric Imaging Instrument(MIMI) Charge Energy Mass      Spectrometer (CHEMS) contains a deflection system and an overall field      of view of 159 x 4 deg. that is comprised of three distinct energetic      particle telescopes each having a field of view of 53 x 4. All      telescopes share the same deflection mechanism, but each has its own      start and stop microchannel plate (MCP) and its own solid-state      detector (SSD). Much of the data returned by CHEMS is separated by      telescope. The deflection plate power supply (DPPS) has 32 different      voltages that can be applied across the deflection plates. For any      single DPPS step, the electrostatic analyzer only transmits incoming      ions within a narrow range of energy per charge (a 3% pass band).      The CHEMS calibrated data set includes the Pulse Height Analysis (PHA)      data collected during the Saturn tour. CHEMS PHA provides a list of      individually detected particles, with specific detection parameters      for each event, including TOF, energy deposited in the SSD, and      telescope number.      The energy per charge data for six ion species (H+, He+, H2+, He++,      O++, W+)  are presented in two forms. (The W+ water ion group includes      O+, OH+, H20+ and H30+). One form is a set of tables which are of      variable length and use a comma to separate various fields, and the      other is a PDF file containing the energy per charge spectrograms and      are based on CHEMS PHA data.      The original data has been decommutated and decoded by software at the      Applied Physics Laboratory (APL) and calibrated and further processed      by software at the University of Maryland.      This data set should be among the first used by a user of any of the      MIMI CHEMS archive as it will lead one to information required to      search for more detailed or highly specialized features in the      original data.", "identifier": "urn:nasa:pds:context_pds3:data_set:data_set.co-s-mimi-4-chems-calib-v1.0;urn:nasa:pds:context_pds3:data_set:data_set.co-s-mimi-4-chems-calib-v1.0::99.0", "keyword": ["__"], "license": "https://www.usa.gov/government-works", "modified": "2026-06-22", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "planetary plasma interactions"}, "theme": ["Planetary Science"], "title": "CASSINI S MIMI CHEMS SENSOR CALIBRATED DATA V1.0"}