Earthdata
CMR Virtual Directories

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

Year	File Count
2013	9626
2014	171331
2015	273729
2016	101356
2018	12358
2019	32155
2020	24673
2021	24499
2022	64303
2023	66009
2024	18989

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