Global Ionosphere Maps of vertical electron content combined in real-time from the RT-GIMs of CAS, CNES, UPC-IonSAT, and WHU International GNSS Service (IGS) centers (from Dec 1, 2020, to March 1, 2021)
Description
The zip-file contains 91 files in IONEX format, described at http://ftp.aiub.unibe.ch/ionex/draft/ionex11.pdf