The problem with JMA's JRA-3Q data server downtime is now solved and the production of L3 SMOS  and L4  CryoSat-2/SMOS sea ice thickness data has been resumed since 3 March, 2025.  Part of the missing L3 and L4 data was reprocessed. During following periods data are still missing: 

4-16 February L3 SMOS sea ice thickness data are missing.

from the week 20250204_20250210 to week 20250217_20250223 L4 CryoSat-2/SMOS sea ice thickness data are missing.