{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "NASA Space Physics Data Facility", "hasEmail": "mailto:NASA-SPDF-Support@nasa.onmicrosoft.com"}, "description": "* Data Set Overview\\n* =================\\n\\nVoyager 2 Plasma Data of the Solar Wind, 1 h Averages. The Files in this Directory contain the Voyager hourly average Plasma Data. The Plasma Parameters are obtained by finding the best Fit of a Convected Isotropic Maxwellian Distribution to the Data. One Sigma Errors are typically less than 0.5% in the Speed and the Radial Velocity, VR, less than 5% for the Density and Thermal Speed, and vary greatly for the other two Velocity Components, VT and VN. Sampling Times range from 12 s to 192 s, with sampling generally more frequent early in the Mission. The Columns are:\\n\\n* 1) Year\\n* 2) Day of Year, Day 1 is January 1\\n* 3) Hour\\n* 4) Proton Speed in km/s, the Magnitude of Velocity Vector\\n* 5) Proton Number Density in cm^-3\\n* 6) Proton Thermal Speed in km/s, the Proton Temperature in eV is equal to 0.0052 times the Square of the Thermal Speed\\n* 7) Velocity Vector R Component, VR, in km/s\\n* 8) Velocity Vector T Component, VT, in km/s, Warning: This Parameter is often not reliable after 1989\\n* 9) Velocity Vector N Component, VN, in km/s, Warning: This Parameter is often not reliable after 1989\\n\\nThe Velocity Components are given in the RTN Coordinate System, where R is radially outward, T is in a Plane parallel to the Solar Equatorial Plane and positive in the Direction of Solar Rotation, and N completes the Right-handed System.\\n\\nPlease consult with us, or at least send Preprints, when you use these Data to prevent grievous Errors or Misconceptions, John Richardson, jdr@space.mit.edu.", "identifier": "/SDE/SPASE_JSON/|98fea4767916d56c673885e49fc91e0d", "keyword": ["thermalplasma"], "license": "https://www.usa.gov/government-works", "modified": "2026-05-18", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "PDS PPI"}, "theme": ["Heliophysics"], "title": "Voyager 2 Heliosphere Plasma Science (PLS) Solar Wind Plasma, Hourly Data"}