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.

In this illustration, the Sentinel-6 Michael Freilich spacecraft - the world's latest sea-level satellite - orbits Earth with its deployable solar panels extended.

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

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. 

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

Sea Level

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

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

Wind Speed

Jason-1: JMR instrument

Jason-1 atop the Delta II Photo: Tom Shain

Early morning at the launch pad

TOPEX/Poseidon Artist's Concept

Ocean Dynamic Topography

Jason-1 Artists Concept

Jason-1 in full flight configuration

OSTM/Jason-2 GPSP

TOPEX/Poseidon Mission to Planet Earth

Jason-1 launch images

Jason-1 Lithograph

Wave Height

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.

High Resolution Jason-1 launch images

TOPEX/Poseidon DORIS