Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System (GNSS) Observation Data (30-second sampling, daily, 24 hour files) from NASA CDDIS
temporal
2026

Month	File Count
01	5273
02	4883
03	5783
04	5121
05	5370
06	5176
07	5124
08	2617

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NASA Official: Doug Newman
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