1. Ground-Based Global Navigation Satellite System (GNSS) Observation Data (1-second sampling, sub-hourly files) from NASA CDDIS
  2. temporal
YearFile Count
20088760
2009886
201096
201110
201236
2013197
2014719692
2015117718
201619774
201744
20183361
201933279
202024856
202122977
202233389
202334205
20249379