Earthdata
CMR Virtual Directories

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

Year	File Count
2012	256
2013	928
2014	2891
2015	5925
2016	5859
2017	6653
2018	7350
2019	9619
2020	8671
2021	6971
2022	9029
2023	9203
2024	2382

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NASA Official: Stephen Berrick
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