t - 10 minutes

Variability of Ocean Dynamic Topography

Mike Davis in front of the faring

Ariane 42P launch vehicle

TOPEX/Poseidon 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.

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

TOPEX/Poseidon Mission to Planet Earth

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.

Poseidon-3 Altimeter

SpaceX Falcon 9 rocket, topped with the Sentinel-6 Michael Freilich satellite secured inside its payload fairing, is rolled to Space Launch Complex 4

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

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

Jason-1 launch images

Jason-1 Altimeter

OSTM/Jason-2 Artist's Concept

Bringing Satellite Data Down to Earth

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 launch images

TOPEX/Poseidon over Earth

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

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

TOPEX/Poseidon Launch

Jason-3 on the Launch Pad

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

Jason-3 Launch