{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Thomas Morgan", "hasEmail": "mailto:thomas.h.morgan@nasa.gov"}, "description": "In preparation for the concerted international study of Comet Halley, the IHW conducted a trial run with observations of Comet Crommelin, largely during February and March of 1984.", "identifier": "urn:nasa:pds:context_pds3:data_set:data_set.ihw-c-spec-2-edr-crommelin-v1.0_qz9m-wna6", "issued": "2021-05-21", "keyword": ["halley", "international-halley-watch"], "landingPage": "https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=IHW-C-SPEC-2-EDR-CROMMELIN-V1.0", "license": "http://www.usa.gov/publicdomain/label/1.0/", "modified": "2025-07-17", "programCode": ["026:005"], "publisher": {"@type": "org:Organization", "name": "National Aeronautics and Space Administration"}, "references": ["https://pds.nasa.gov"], "theme": ["Earth Science"], "title": "IHW COMET SPEC EDITED EXPERIMENT DATA RECORD CROMMELIN V1.0"}