Earthdata
CMR Virtual Directories

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

Month	File Count
01	740
02	482
03	184
04	98
05	2
06	4
07	18
08	176
09	9
10	4
11	5
12	1

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NASA Official: Stephen Berrick
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