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	21501
02	20688
03	17314
04	21279
05	20902
06	22765
07	23037
08	17661
09	19152
10	24998
11	24587
12	24913

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NASA Official: Stephen Berrick
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