The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.
Exploring our Solar System and unlocking the secrets of the Universe
Go to topicProtecting life and infrastructure on Earth and in orbit
Go to topicUsing space to benefit citizens and meet future challenges on Earth
Go to topicMaking space accessible and developing the technologies for the future
Go to topicThank you for liking
You have already liked this page, you can only like it once!
Millimetre wave image from the Geostationary Atmospheric Sounder demonstrator, developed by RUAG Space AB with Omnisys Instruments of Sweden. The image shows the relative brightness temperature of a nearby office building in mm-waves, acquired during outdoor testing in May 2010.
A 21-element demonstrator representing the central part of the 53 GHz interferometer has been developed to demonstrate its rotation-based imaging concept. The demonstrator supports full polarimetric measurements with a maximum baseline of ~75 cm, equivalent to 300 km resolution if positioned in geostationary orbit. The first images from outdoor measurements show that the imaging concept and algorithms performs as intended and it also demonstrates that the hardware technology is capable of receiving and detecting the very weak noise signals with sufficient sensitivity and stability to enable the system to be implemented.