Earthdata
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Global Navigation Satellite System (GNSS) Ionosphere Vertical Total Electron Content (VTEC) Analysis Center Product from NASA CDDIS
temporal
1999
01
22

Granule Download	Other Links
gnss_products_ionex_1999_022_whug0220.99i.Z
gnss_products_ionex_1999_022_casg0220.99i.Z
gnss_products_ionex_2099_022_whug0220.99i.Z

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NASA Official: Stephen Berrick
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