OSTM/Jason-2 Spacecraft

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

Radiometer Rework - April 2007

The Falcon 9 protective payload fairing containing the Sentinel-6 Michael Freilich satellite

Spacecraft processing

Jason-1 launch images

Jason-1 Artists Concept

The ocean-observing Sentinel-6 Michael Freilich satellite launched from Vandenberg Air Force Base in California aboard a SpaceX Falcon 9 rocket on Nov. 21, 2020 at 12:17 p.m. EST

NASA and its U.S. and international partners have teamed up to launch a new Earth-observing satellite called Sentinel-6B that will measure sea surface height of most of the planet’s ocean. These ob...

Water Vapor

TOPEX/Poseidon LRA

OSTM/Jason-2 Radiometer Antenna

TOPEX/Poseidon over Earth

Jason-3 Lifts Off!

t - 7 minutes - Photo: Tom Shain

TOPEX/Poseidon Collecting Data

TOPEX/Poseidon GPS

Applications of Spaceborne Altimetry

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.

Radiometer Installation Team - April 2007

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

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

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

Ionospheric Total Electron Content

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

TOPEX/Poseidon Radiometer