On March 9, the international Surface Water and Ocean Topography (SWOT) satellite's main scientific instrument – the Ka-band Radar Interferometer (KaRIn) – returned to regular commissioning activities. KaRIn was shut off in late January. Since then, the team has worked to analyze the situation and developed a plan to restore operations utilizing a backup KaRIn …
Engineers Check SWOT Science Instrument During Commissioning Activities
After launching in December 2022, the international Surface Water and Ocean Topography (SWOT) mission started commissioning activities – the six-month checkout period before the scientific mission begins. Commissioning has included turning on all the science instruments, among them the main science instrument, the Ka-band Radar Interferometer (KaRIn), which engineers fully powered on in mid-January 2023. …
SWOT Signal Acquired

SWOT has successfully made contact with ground stations here on Earth and is providing teams with early data on the spacecraft's health. A collaboration between NASA and the French space agency Centre National d'Études Spatiales (CNES), with contributions from the Canadian Space Agency (CSA) and the UK Space Agency, SWOT will provide high-resolution measurements …
Falcon 9 Second Stage Separates from SWOT

The Surface Water and Ocean Topography (SWOT) spacecraft has separated from the Falcon 9 rocket's second stage, beginning the first mission dedicated to surveying nearly all water on Earth's surface. Teams expect to receive a signal from SWOT in the next 30 minutes – stay with us here on the blog as we'll confirm when …
Second Stage Engine Restarts
The Falcon 9's second stage engine restarted for a short, six-second burn, and we have another successful second engine cutoff. Coming up next, in just under 10 minutes, the Surface Water and Ocean Topography (SWOT) satellite will separate from the rocket.
A Few Fun Facts About SWOT

While we wait for that second stage engine to restart, take a look at a few fun facts about today's Surface Water and Ocean Topography (SWOT) mission: SWOT is the fourth Launch Services Program (LSP) science mission to launch from Vandenberg Space Force Base in California on a SpaceX Falcon 9 SWOT is LSP's 101st …
First Stage Sticks the Landing, Second Stage Engine Cuts Off

The SpaceX Falcon 9 rocket's first stage has successfully landed at Vandenberg Space Force Base's landing zone 4 in California. Meanwhile, the engine in the Falcon 9's second stage has cut off. The rocket's upper stage and the spacecraft are now in a parking orbit, and in approximately 35 minutes, the engine will restart for …
Falcon 9 Main Engine Cuts Off, First Stage Separates

The SpaceX Falcon 9 rocket's nine Merlin engines have finished their burn, and the first stage has separated from the rocket. As the second stage continues carrying the U.S.- and French-led Surface Water and Ocean Topography (SWOT) satellite on its journey, the rocket's first stage will attempt a controlled landing at Vandenberg Space Force Base's …
Liftoff! SWOT Soars Upward

Ignition, and liftoff! At 3:46 a.m. PST, SpaceX's Falcon 9 rocket blasted off from Vandenberg Space Force Base's Space Launch Complex-4 East, carrying the first satellite to survey nearly all water on Earth's surface. Stay here on the blog as we take you through some key flight milestones, coming up in the next couple of …


