Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System (GNSS) Beidou Broadcast Ephemeris Data (daily files) from NASA CDDIS
temporal

Year	File Count
2015	612
2016	18613
2017	14284
2018	20625
2019	30753
2020	28709
2021	22967
2022	29849
2023	29812
2024	8184

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NASA Official: Stephen Berrick
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