Earthdata
CMR Virtual Directories

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

Year	File Count
2015	9
2016	75973
2017	389120
2018	355886
2019	773659
2020	606084
2021	893244
2022	908631
2023	1178691
2024	1369871

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