Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System (GNSS) Compact Observation Data (30-second sampling, daily, 24 hour files) from NASA CDDIS
temporal
2018

Month	File Count
01	21656
02	20828
03	17468
04	21429
05	21061
06	22915
07	23190
08	17793
09	19277
10	25122
11	24698
12	25055

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NASA Official: Stephen Berrick
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