Jason-1 Line Drawing

Launch preparations are progressing! (11/21/01) Photos: Stacy Mitchell of John Hopkins APL/TIMED project

Mission team members perform acoustic tests of the Sentinel-6 Michael Freilich satellite in a chamber outfitted with giant speakers that blast the spacecraft with sound. This is to ensure that the ...

Altimeter Applications - JPL Open House '99

Applications of Spaceborne Altimetry

Jason-1 on top of the DPAF

The Antonov cargo aircraft carrying the Sentinel-6 Michael Freilich satellite touches down on the runway at Vandenberg Air Force Base in California on Sept. 24, 2020. 

Launch preparations are progressing! (11/21/01) Photos: Stacy Mitchell of John Hopkins APL/TIMED project

TOPEX/Poseidon Ground Tracks

Radiometer Install - April 2007

High Resolution Jason-1 launch images

Jason-3 Launch

Sea Surface Height

Jason-1 Artists Concept

Jason-3 Animation

For NASA JPL engineer Parag Vaze, studying Earth’s rising ocean has been a career three decades in the making.

OSTM/Jason-2 GPSP

OSTM/Jason-2 Artist's Concept

TOPEX/Poseidon Radiometer

For NASA scientist Severine Fournier, studying our planet knows no borders.

TOPEX/Poseidon LRA

The joint U.S.-European Sentinel-6 Michael Freilich is the next in a line of Earth-observing satellites that will collect the most accurate data yet on sea level and how it changes over time. With ...

TOPEX/Poseidon GPS

The Sentinel-6 Michael Freilich satellite sits in front of a testing chamber where mission team members tested whether the spacecraft could endure the loud sounds it will encounter during launch.

Jason-1 LRA

Jason-1 readies for launch in its bay at Vandenberg, AFB (10/31/01)