1. Ground-Based Global Navigation Satellite System (GNSS) GPS Broadcast Ephemeris Data (daily files) from NASA CDDIS
  2. temporal
YearFile Count
199211644
199321482
199414908
199519161
199626381
199729718
199833166
199935975
200047422
200144476
200252109
200360099
200461368
200562480
200662240
200763992
200869341
200981638
201098385
2011112127
2012180838
2013173719
2014207307
2015192834
2016275327
2017154319
2018159819
2019175661
2020152705
2021101892
2022120920
2023112381
202429678