The following new observations have been activated in the operational ECMWF assimilation systems during April – June 2026.
| Observations | Main impact | Activation date |
| Methane retrievals from Sentinel-5p | Methane in CAMS | 12 May 2026 |
| Aerosol Optical Depth from SLSTR on Sentinel-3 A and B | Aerosols in CAMS | 12 May 2026 |
| Radar reflectivities from CPR on EarthCARE | Vertical cloud and precipitation distribution, tropospheric winds | 10 June 2026 |
| Infrared radiances from HIRAS-2 on FY-3E | Temperature, humidity, winds | 23 June 2026 |