urn:nasa:pds:cassini-caps-water-group-ion 2.1 1.24.0.0 Product_Bundle 2026 10.17189/wqqj-5z30 This bundle contains the data and documentation associated with the 2020 NASA ROSES CDAP, Global Survey of Individual Water Group Ion Properties in Saturn's Magnetosphere: Cassini CAPS Observations, grant number 80NSSC21K0530. The data in this bundle include bulk plasma parameters for saturnian magnetospheric ion species measured by CAPS-IMS. The data in this bundle include bulk plasma parameters for saturnian magnetospheric ion species measured by CAPS-IMS. NASA The data and documentation included in ths bundle was funded by the 2020 NASA ROSES CDAP, grant number 80NSSC21K0530. Thomas Kim 0000-0001-6282-0803 1 Los Alamos National Laboratory https://ror.org/01e41cf67 2026-03-25 2.1 This version includes a revised version of the data file with a small update to the jgr_flag values. 2025-09-25 2.0 This version includes a revised version of the data file. The PDS4 Information Model version has also been updated and the file extensions for the PDS4 labels have been changed from 'xml' to 'lblx'. 2024-06-27 1.0 This is the first version of this bundle. 2004-06-30T18:59:54.026Z 2012-05-22T01:14:46.307Z Science Derived Heliosphere Magnetosphere Particles Ions Plasma Cassini-Huygens Mission urn:nasa:pds:context:investigation:mission.cassini-huygens bundle_to_investigation Cassini Orbiter Host urn:nasa:pds:context:instrument_host:spacecraft.co is_instrument_host Cassini Plasma Spectrometer Instrument urn:nasa:pds:context:instrument:caps.co is_instrument Saturn Planet urn:nasa:pds:context:target:planet.saturn bundle_to_target Solar Wind Plasma Stream urn:nasa:pds:context:target:plasma_stream.solar_wind bundle_to_target Enceladus Satellite urn:nasa:pds:context:target:satellite.saturn.enceladus bundle_to_target Tour Pre-Huygens Huygens Descent Outer Cruise Tour Solstice Mission Equinox Mission 1 50 Ions Time of Flight Proton Heavy urn:nasa:pds:context:resource:resource.cassini-caps-water-group-ion_online has_resource urn:nasa:pds:cassini-caps-water-group-ion:document:errata::1.2 bundle_to_errata urn:nasa:pds:cassini-caps-raw:document:caps_pds_user_guide_v1_00::1.0 bundle_to_document CAPS_PDS_USER_GUIDE_V1_00, see page 133 for definitions of data fields 7 and 8, lat and local-time. 10.1029/2025JA034738 Kim et al (2026), Comprehensive Characterization of Water Group Ion Composition and 1 Distributions in Saturn’s Magnetosphere with Cassini Plasma Spectrometer Data, J. Geophys. Res. Space Physics. (Accepted) Key Points: - Enceladus-origin OH+, H2O+, and H3O+ dissociate within 5-10 Saturn radii, leaving O+ and H+ dominant. - Ionosphere-plasma coupling is strongest at 5-10 Saturn radii, where flow speeds reach about 80% of rigid corotation. - O+ ions make up nearly 70% of Saturn’s thermal plasma population across the 25 magnetosphere out to 16 Saturn radii. Archive This bundle contains bulk plasma parameters for saturnian magnetospheric ion species measured by CAPS-IMS readme.txt 2026-03-25 3831 746a232f6260a845a507c1329782db11 0 7-Bit ASCII Text Carriage-Return Line-Feed urn:nasa:pds:cassini-caps-water-group-ion:data::2.1 Primary bundle_has_data_collection urn:nasa:pds:cassini-caps-water-group-ion:document::1.2 Primary bundle_has_document_collection