Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System (GNSS) GPS Broadcast Ephemeris Data (hourly files) from NASA CDDIS
temporal
2015

Month	File Count
01	197179
02	166686
03	191022
04	90804
05	733
06	23893
07	118
08	106
09	45131
10	167384
11	198021
12	95612

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