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
1992

Month	File Count
01	136
02	99
03	64
04	109
05	123
06	299
07	163
08	295
09	456
10	990
11	1536
12	1442

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NASA Official: Stephen Berrick
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