{
  "@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": "The L1 STATE files contain the following data, sampled at one-minute intervals:\n\n               * probe position and velocity in GEI, GSE, and GSM coordinates;\n               * flags to indicate regions of interest and maneuver status;\n               * RA and declination of spin axis;\n               * spin period and spin phase;\n               * spin model parameters for high-precision interpolation of spin phase between one-minute data points.\n\n               Version number indicates data source as follows:\n\n               * V00: predicted ephemeris and attitude, no spin period or spin phase;\n               * V01: predicted ephemeris and attitude, spin period and spin phase derived from probe telemetry;\n               * V02: predicted attitude, definitive ephemeris from magnetometer and Doppler tracking data;\n               * V03: corrected attitude and spin phase derived from fully calibrated magnetometer data. (added science attitude determination using perigee data post-processing).\n\n               Produced by Mission Ops, Science Ops and Science Team.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "downloadURL": "ftps://spdf.gsfc.nasa.gov/pub/data/themis/thd/l1/state/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "http://themis.ssl.berkeley.edu/data/themis/thd/l1/state/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "http://themis.ssl.berkeley.edu/overview_data.shtml",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "http://themis.ssl.berkeley.edu/roadrules.shtml",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=THD_L1_STATE&index=sp_phys",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://cdaweb.gsfc.nasa.gov/hapi",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://helio.data.nasa.gov/dataset/THEMIS_D_Ephemeris_PT01M",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://hpde.io/NASA/NumericalData/THEMIS/D/Ephemeris/PT01M",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://spdf.gsfc.nasa.gov/pub/data/themis/documents/tdas/docs/thm_ogs_431m_ephemeris_format_definition.pdf",
      "format": "PDF",
      "mediaType": "application/pdf"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://spdf.gsfc.nasa.gov/pub/data/themis/thd/l1/state/",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://sscweb.gsfc.nasa.gov/cgi-bin/Locator.cgi",
      "format": "BIN",
      "mediaType": "application/octet-stream"
    }
  ],
  "identifier": "https://doi.org/10.48322/xzx6-3311",
  "keyword": [
    "ephemeris"
  ],
  "landingPage": "https://doi.org/10.48322/xzx6-3311",
  "license": "https://www.usa.gov/government-works",
  "modified": "2026-09-08",
  "programCode": [
    "026:000"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "CDAWeb, SPDF, THEMIS"
  },
  "theme": [
    "Heliophysics"
  ],
  "title": "THEMIS-D Level 1 Probe State Data"
}