Lungi da me credere a tutto quello che ci dicono senza controllare le fonti ma questa sembra veramente una bomba, pensate se fosse vero!

It contains 5 instruments:

* Poseidon 2 - Nadir pointing Radar Altimeter using C band and Ku band for measuring height above sea surface.
* Jason Microwave Radiometer (JMR) - measures water vapor along altimeter path to correct for pulse delay
* DORIS (Doppler Orbitography and Radiopositioning Integrated by Satellite) for orbit determination to within 10 cm or less and ionospheric correction data for Poseidon 2.
* BlackJack Global Positioning System receiver provides precise orbit ephemeris data
* Laser retroreflector array works with ground stations to track the satellite and calibrate and verify altimeter measurements.