1. Ground-Based Global Navigation Satellite System (GNSS) Observation Data (30-second sampling, hourly files) from NASA CDDIS
  2. temporal
YearFile Count
200521796
20069025
20071780
200814707
20099150
20126997
2013675
201410563
201515634
201628099
201711614
20181723
201952810
202036005
202139215
202234946
202344006
202460184
202570883
20265192