Earthdata
CMR Virtual Directories

Global Navigation Satellite System (GNSS) Ionosphere Vertical Total Electron Content (VTEC) Fluctuation Measurement Product from NASA CDDIS
temporal
2018

Month	File Count
01	31
02	28
03	31
04	30
05	31
06	30
07	24
09	29
10	31
11	23
12	30

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NASA Official: Stephen Berrick
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