Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System (GNSS) Compact Observation Data (30-second sampling, hourly files) from NASA CDDIS
temporal
2020

Month	File Count
01	322592
02	330941
03	283263
04	294009
05	398308
06	375603
07	385118
08	364652
09	954
10	1417
11	1441
12	1906

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