{
  "@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": "This data set holds half-orbit (~5 hour) resolution \nproton distributions (19 5-deg equatorial pitch angles vs. 24 energies) \nfrom the Proton Telescope (PROTEL) on the CRRES spacecraft.  \nThe energy range covered is 1-100 MeV.  These data are developed from \nthe 1-min insitu pitch angle distributions by assigning each 5-deg bin \nin pitch angle a corresponding McIlwain L value and then by mapping the \ninsitu pitch angle distribution to the equator, into 0.05-wide L bins, \nassuming first adiabatic invariant conservation.  The mapping yields \nequivalent equatorial pitch angles.  Flux data for a given half-orbit, \ngiven 0.05-wide L bin,  given equatorial pitch angle and given energy bin\nare then averaged.  Data records are for a given half-orbit and given\nL bin; each record contains averaged fluxes vs. equatorial pitch angle\nand energy.  The data are in SGI(UNIX) binary format.  Read software\nis contained within the companion documentation.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "downloadURL": "ftps://spdf.gsfc.nasa.gov/pub/data/crres/particle_protel/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://helio.data.nasa.gov/dataset/CRRES_PROTEL_PT5H",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://hpde.io/NASA/NumericalData/CRRES/PROTEL/PT5H",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://spdf.gsfc.nasa.gov/pub/data/crres/particle_protel/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://spdf.gsfc.nasa.gov/pub/data/crres/particle_protel/document/crres_readme3.pdf",
      "format": "PDF",
      "mediaType": "application/pdf"
    }
  ],
  "identifier": "https://doi.org/10.48322/7wag-2205",
  "keyword": [
    "energeticparticles"
  ],
  "landingPage": "https://doi.org/10.48322/7wag-2205",
  "license": "https://www.usa.gov/government-works",
  "modified": "2026-09-07",
  "programCode": [
    "026:000"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "SPDF"
  },
  "theme": [
    "Heliophysics"
  ],
  "title": "CRRES PROTEL proton equatorial distributions vs.L"
}