Jason-2 is taking over and continuing the missions of Topex/Poseidon and Jason-1, in the framework of a cooperation between CNES, NASA, Eumetsat and NOAA. It carries the same kind of payload as its two predecessors for a high-precision altimetry mission: a Poseidon-class altimeter, a radiometer and three location systems. The orbit is also identical.
The Jason-2 payload includes the next generation of Poseidon altimeter (Poseidon-3, with the same general characteristics as Poseidon-2, but with a lower instrument noise and an algorithm enabling better tracking over land and ice), and the DORIS location system. The accuracy should be about 2.5 cm for the altimeter measurements.
Further information on:
- Jason-2 (Aviso)
- Ocean surface topography from space (NASA/JPL)
- Jason-1 and 2, the ocean observatory (CNES)