Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
2015

Month	File Count
01	33857
02	31550
03	34391
04	26758
05	22990
06	19418
07	20457
08	23103
09	24495
10	31956
11	34879
12	26611

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NASA Official: Doug Newman
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