|   Artistic Representation of MTG-S1/Sentinel-4A Satellite | |
| Mission type | Meteorology/Earth observation | 
|---|---|
| Operator | ESA, EUMETSAT | 
| Website | MTG (ESA) Sentinel-4 (ESA) | 
| Mission duration | Planned: 8.5 years [1] | 
| Spacecraft properties | |
| Spacecraft type | MTG-S | 
| Bus | SmallGEO [2] | 
| Manufacturer | Thales Alenia Space | 
| Launch mass | 3,800 kg (8,400 lb) [3] | 
| Start of mission | |
| Launch date | 1 July 2025, 21:04 UTC | 
| Rocket | Falcon 9 Block 5 (F9-499) | 
| Launch site | Kennedy LC-39A | 
| Contractor | SpaceX | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Regime | GEO [4] | 
MTG-S1/Sentinel-4A , officially designated Meteosat-13 upon entering operational service, is a European Meteorology and Earth Observation satellite. It is the first of two satellites in the Sentinel-4 constellation, part of the European Union's Copernicus programme on Earth observation and also one of two Meteosat Third Generation-Sounder (MTG-S) spacecraft. [5] [6] [7] [8] [9]