{
  "@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 provides the 5-second (spin-averaged) FAST survey electric and magnetic field (Delta B) data within the low altitude auroral arc region. The three-axis searchcoil magnetometer (the AC magnetometer) provides measurement of structures and waves corresponding to ELF and VLF frequencies.  Magnetic field power spectral densities are obtained between 10 Hz and 4 kHz on two axes, and from the third one that is sampled up to 2 MHz, the magnetic component of auroral kilometric radiation (AKR).  Once the auroral electron precipitation is detected, survey data will shift from a slow to a fast survey mode at rates of 32 to 2048 samples per second.  Slow survey data has ~0.06 s resolution, and fast survey, typically has ~0.5 ms resolution. There is a frequency-dependent sensitivity between 10^-8 and 10^-10 nT^2/Hz. Electric field power spectral densities are also provided for the same frequency ranges.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "downloadURL": "ftps://spdf.gsfc.nasa.gov/pub/data/fast/dcf/k0/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "http://sprg.ssl.berkeley.edu/fast/scienceops/fastdocs.html",
      "format": "HTML",
      "mediaType": "text/html"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://cdaweb.gsfc.nasa.gov/sp_phys/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://helio.data.nasa.gov/dataset/FAST_DCF_KP_PT5S",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://hpde.io/NASA/NumericalData/FAST/DCF/KP/PT5S",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://spdf.gsfc.nasa.gov/pub/data/fast/dcf/k0/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    }
  ],
  "identifier": "https://doi.org/10.48322/w0p5-5f22",
  "keyword": [
    "electricfield",
    "magneticfield"
  ],
  "landingPage": "https://doi.org/10.48322/w0p5-5f22",
  "license": "https://www.usa.gov/government-works",
  "modified": "2026-11-03",
  "programCode": [
    "026:000"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "SPDF"
  },
  "theme": [
    "Heliophysics"
  ],
  "title": "FAST DCF Key Parameters"
}