OSTM/Jason-2 Artist's Concept

Radiometer Install - Jan. 2007

TOPEX/Poseidon Collecting Data

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

This artist's concept shows Jason-3 over the California coast.

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

Ionospheric Total Electron Content

Sea Level

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...

Jason-1 Spacecraft Animation

Jason-1 launch images

Jason-1 atop the Delta II Photo: Tom Shain

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 ...

Jason-3 on the Launch Pad

Jason-3 Satellite Prepared For Launch

Applications of Spaceborne Altimetry

Jason-3

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

TOPEX/Poseidon Line Drawing

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

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.

Water Vapor

OSTM/Jason-2 Radiometer Antenna

Jason-1 DORIS

OSTM/Jason-2 Radiometer Antenna

Mike Davis in front of the faring