Ground Controllers Acquire Signals for Both GRACE-FO Satellites

About three weeks after their launch, the twin climate-monitoring satellites- GRACE-FO satellites (short for Gravity Recovery and Climate Experiment Follow-On)- that NASA deployed in Earth’s orbit have switched on their powerful lasers for the first time, showing that their systems are shipshape.

The Gravity Recovery and Climate Experiment Follow-on (GRACE-FO) mission is a partnership between NASA and the German Research Centre for Geosciences (GFZ).

GRACE-FO is a successor to the original GRACE mission, which began orbiting Earth on March 17, 2002. The GRACE missions measure variations in gravity over Earth’s surface, producing a new map of the gravity field every 30 days.

GRACE-FO will carry on the extremely successful work of its predecessor while testing a new technology designed to dramatically improve the already remarkable precision of its measurement system.

GRACE-FO will continue the work of tracking Earth’s water movement to monitor changes in underground water storage, the amount of water in large lakes and rivers, soil moisture, ice sheets and glaciers, and sea level caused by the addition of water to the ocean. These discoveries provide a unique view of Earth’s climate and have far-reaching benefits to society and the world’s population.

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