TOPEX/Poseidon over Earth

To provide scientists with essential information about global and regional changes in the seas, NASA will launch the Jason-3 satellite from Vandenberg Air Force Base in California.

TOPEX/Poseidon Launch

OSTM/Jason-2 DORIS

Applications of Spaceborne Altimetry

Ionospheric Total Electron Content

Ocean Dynamic Topography

Variability of Ocean Dynamic Topography

TOPEX/Poseidon Collecting Data

A key ocean observation satellite has been named after Earth scientist Michael Freilich

Jason-1 Poster

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

Jason-1 Launch - Artists Concept

Watch the Jason-3 Science Briefing from Friday, Jan 15, 2016 - panelists discussed the science and research of the Jason-3 mission.

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

These photos were taken during the Payload Attach Fitting (PAF) mating operation with Jason-1. (11/14/01) Photos: Scott Michel

Our planet is changing. Our ocean is rising. And it affects us all. That’s why a new international satellite will continue the decades-long watch over our global ocean and help us better understand...

Radiometer Rework - April 2007

High Resolution Jason-1 launch images

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.

This artist's concept show Jason-3 over the Amazon.

Jason-1 Spacecraft Animation

Jason-3 Launch

QuickTime VR of TOPEX/Poseidon

Jason-1 in full flight configuration

Jason-1 Altimeter