Series of 4 satellites for all-weather land observation.
German programme: DLR responsible of development and operations.
The platforms are actively stabilised over 3 axes.
The design life time is 5 years.
The satellites exploit the dawn-dusk orbit at 6:00.
The replacement policy is based on launching satellites in sequence, roughly 6 months before the expected end-of-life of a satellite.
See detailed descriptions at:
The data and transmitted to the main receiving station in Neustrelitz and other ones in Okinawa, Ramstein, Miami, Hawai and (after onboard storage) Svalbard.
Data are processed in a Payload Ground Segment (PGS) and distributed by Astrium/Infoterra, a part of EADS (European Aeronautic Defence and Space Company).
2007 - 2036
Associated satellites and instruments
Note: red tag => no longer operational , green tag => operational
, blue tag => planned