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ESA – Hera takes to the air

September 27, 2023
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ESA’s Hera asteroid mission for planetary defence seen with certainly one of its two photo voltaic wings added, throughout its persevering with take a look at marketing campaign on the ESTEC Take a look at Centre within the Netherlands.

Watch the photo voltaic wing being deployed on this video clip. 

The van-sized spacecraft, left, is powered by a pair of photo voltaic array wings, made up of three panels every, supplied by Leonardo in Italy plus Beyond Gravity in Switzerland.

Certainly one of these 5-m-long wings was added for Hera’s ‘chilly deployment verify’ – a handbook unfolding course of to substantiate that the wing matches appropriately. As a result of the photo voltaic wings have been designed to function in weightlessness they have been supported by a body throughout this take a look at deployment.

Hera is Europe’s contribution to a global planetary defence experiment. Following the DART mission’s impression with the Dimorphos asteroid final yr – modifying its orbit and sending a plume of particles 1000’s of kilometres out into house – Hera will return to Dimorphos to carry out a close-up survey of the crater left by DART. The mission will even measure Dimorphos’ mass and make-up, together with that of the bigger Didymos asteroid that Dimorphos orbits round.

Close to the tip of Hera’s present take a look at marketing campaign this photo voltaic wing deployment might be repeated, this time as a ‘sizzling deployment verify’ the place the deployment is commanded via and applied by the spacecraft itself, as it can happen in house.

Hera is scheduled for launch in October 2024, to rendezvous with the Didymos and Dimorphos asteroid system. The spacecraft’s onboard thrusters – seen right here coated with purple tags at every nook of its hull – will manoeuvre it via deep house to achieve its vacation spot simply over two years later.

The going through aspect of the spacecraft was open in the course of the deployment take a look at as a result of the crew was nonetheless working inside it, finalising the set up of take a look at sensors. Since then Hera has been sealed and its antennas fitted, permitting mechanical testing to proceed.

Operated for ESA by European Test Services, the ESTEC Take a look at Centre is the biggest facility of its type in Europe, offering an entire suite of apparatus for all points of satellite tv for pc testing underneath a single roof.  Hera might be on view to attendees of the ESA Open Day at ESTEC on Sunday 8 October.

To search out out extra about Hera and planetary defence, watch our Unimaginable Adventures of the Hera Mission sequence.



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