Sentinel-2C, the third Sentinel-2 satellite of the Copernicus program, is planned to be launched in 2024.
Currently, the Copernicus SENTINEL-2 mission "comprises a constellation of two polar-orbiting satellites placed in the same sun-synchronous orbit, phased at 180° to each other".
Whilst this pattern leads to an interesting revisit window of 5 days, it is not clear how Sentinel-2C will be integrated into this current system.
Will Sentinel-2C replace an existing Sentinel-2 satellite? Or will Sentinel-2C be orbiting in a similar sun-synchronous orbit, but phased at +/-90° from the two other systems?
EDIT 12/05/2023 : The same question holds for Sentinel-2D.
- Sentinel-2A: 2015-028A
- Sentinel-2B: 2017-013A