1. Global Navigation Satellite System (GNSS) Ionosphere Vertical Total Electron Content (VTEC) Analysis Center Product from NASA CDDIS
  2. temporal
  3. 2020
  4. 06
  5. 03
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gnss_products_ionex_2020_156_upcg1560.20i.Z
gnss_products_ionex_2020_156_esag1560.20i.Z
gnss_products_ionex_2020_156_codg1560.20i.Z