Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
2003

Month	File Count
01	9510
02	8508
03	9634
04	9236
05	9717
06	9530
07	9941
08	9850
09	9403
10	9576
11	9314
12	9694

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NASA Official: Stephen Berrick
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