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RapidScat on ISS (International Space Station)
The RapidScat instrument replaced NASA's QuikScat Earth satellite. The instrument is currently on board the International Space Station and measures Earth's ocean surface wind speed and direction.
The primary goal of the ISS-RapidScat mission is to demonstrate the agile reuse of flight-worthy hardware and demonstration of the capability to deploy and host a science class instrument.
SeaWinds on ADEOS II
A successor to NSCAT, the SeaWinds scatterometer was a specialized microwave radar that measured near-surface wind velocity (both speed and direction) under all weather and cloud conditions over Earth's oceans.
SeaWinds on QuickSCAT
The SeaWinds instrument on the QuikSCAT satellite was a specialized microwave radar that measured near-surface wind speed and direction under all weather and cloud conditions over Earth's oceans.
The SeaWinds on QuikSCAT mission was a "quick recovery" mission to fill the gap created by the loss of data from the NASA Scatterometer (NSCAT) in 1997.
NSCAT on ADEOS (Advanced Earth Observing Satellite)
While in operation, NSCAT provided approximately 70% global ice-free ocean coverage every day with a measurement footprint of 25 km. Nearly 10 months of continuous global ocean surface wind vector data was provided by NSCAT, representing an unprecedented achievement by NASA.