OSTM/Jason-2 Artist's Concept

Applications of Spaceborne Altimetry

OSTM/Jason-2 Artist's Concept

Jason-1: TRSR instrument

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 Line Drawing

Ionospheric Total Electron Content

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

Jason-1 in full flight configuration

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

Watch the Jason-3 Mission Briefing from Friday, Jan 15, 2016 - panelists gave an overview of the Jason-3 mission.

OSTM/Jason-2 DORIS

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. 

The SpaceX Falcon 9 rocket carrying the Sentinel-6 Michael Freilich spacecraft lifts off from Space Launch Complex 4 at Vandenberg Air Force Base in California, Nov. 21, 2020, at 9:17 a.m. PST

TOPEX/Poseidon Altimeter

These photos were taken during the Dual Payload Attach Fitting (DPAF) mating operation with Jason-1. (11/13/01) Photos: Scott Michel

Jason-1 LRA

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...

OSTM/Jason-2 Line Drawing

TOPEX/Poseidon Line Drawing

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 ...

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

OSTM/Jason-2 Radiometer Antenna

SpaceX Falcon 9 rocket with the Sentinel-6 Michael Freilich satellite is lifted to vertical at Space Launch Complex 4

This is an artist's concept of the Sentinel-6 Michael Freilich spacecraft.

Jason-1 Radiometer