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	21431
05	21062
06	22915
07	23190
08	17806
09	19306
10	25153
11	24728
12	25085

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NASA Official: Doug Newman
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