Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System (GNSS) Observation Data (30-second sampling, hourly files) from NASA CDDIS
temporal
2017

Month	File Count
01	789
02	1261
03	1378
04	1222
05	1315
06	1287
07	1202
08	965
09	713
10	680
11	552
12	250

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NASA Official: Stephen Berrick
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