Swarm trio becomes a quartet
22 February 2018
With the aim of making the best possible use of existing satellites, ESA and Canada have made a deal that turns Swarm into a four-satellite mission to shed even more light on space weather and features such as the aurora borealis.
In orbit since 2013, ESA's three identical Swarm satellites have been returning a wealth of information about how our magnetic field is generated and how it protects us from dangerous electrically charged atomic particles in the solar wind.
Canada's Cassiope satellite carries three instrument packages, one of which is e-POP. It delivers information on space weather which complements that provided by Swarm. Therefore, the mission teams began looking into how they could work together to make the most of the two missions.
To make life easier, it also just so happens that Cassiope's orbit is ideal to improve Swarm's readings.
Top story on Copernicus
19 June 2018
The key to monitoring Earth's changing environment and to guaranteeing a consistent stream of satellite data to improve our daily lives is to take the same measurements over the course of decades.
But how do you know that measurements from successive satellites, even though identical in build, are like for like?
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