Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
2007

Month	File Count
01	11606
02	10584
03	11639
04	11111
05	11384
06	11291
07	11752
08	11709
09	11344
10	11588
11	11074
12	11390

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NASA Official: Stephen Berrick
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