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	30754
2020	28709
2021	22974
2022	29944
2023	30256
2024	27409
2025	26773

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NASA Official: Doug Newman
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