1. Ground-Based Global Navigation Satellite System (GNSS) GPS Broadcast Ephemeris Data (hourly files) from NASA CDDIS
  2. temporal
YearFile Count
20021
20052666428
20061108969
2007210461
20081216426
20091026368
20102952
2012806670
201358533
2014735921
20151176689
20162343745
20172137305
20181903206
20193034069
20201905094
20211429397
20221274795
20231433817
2024275045