TOPEX/Poseidon Line Drawing

Altimeter Mission Series

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

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.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 4 at Vandenberg Air Force Base carrying the Jason-3 spacecraft. Liftoff was at 10:42 a.m. PST (1:42 p.m. EST).

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

Jason-1 atop the Delta II Photo: Tom Shain

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

Ocean Dynamic Topography

Poseidon-3 Altimeter

Jason-3 Ready for Launch

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. 

Sea Level

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...

TOPEX/Poseidon DORIS

Headed for Orbit!

Oceans' Role in Climate - Jason-1

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

Jason-1 LRA

t - 12 minutes

High Resolution Jason-1 launch images

Radiometer Install - April 2007

Sea Surface Height

OSTM/Jason-2 Artist's Concept

OSTM/Jason-2 Artist's Concept

Sentinel-6 Michael Freilich will join a long-standing family of Earth observing satellites from NASA and European partners.