Galileo spreads its solar wings

by | Jul 11, 2013 | ESA, Seradata News | 0 comments

Galileo_FOC_solar_wing_deployment_large.jpg

This image released today by the European Space Agency shows adeployment test of the solar wings on the latest Galileo navigation satellitebeing carried out ESA’s technical hub in the Netherlands. The 1 x 5 m solarwings carry more than 2,500 state-of-the-art gallium arsenide solar cells topower the satellite during its 12-year working life.

A counterweighted rig supports the deployment, otherwise thedelicate fold-out wings – designed for the weightlessness of space – wouldcrumple under the pull of Earth gravity.

With the first four Galileo “In-Orbit Validation”satellites already in orbit, this is the first of the rest of Europe’s satnavconstellation, which will eventually number 27 spacecraft and three orbitingspares. These 22 satellites will be launched from Kourou over the next fewyears.

ESA is pushing hard to orbit18 satellites by the end of 2014 for a functional service, and 26 satellites bythe end of 2015 for near-global coverage. The full constellation of should bedeployed by 2019.

“Full Operational Capability” satellites like this oneare being built by OHB in Bremen, Germany, with navigation payloads supplied bySurrey Satellites in England.

Says Jean-Claude Chiarini, who is overseeing procurement forESA: “These 22 Galileo FOC satellites are being produced and tested on abatch production basis, which is a new way of working for ESA.

“The concept is really to set up a steady flow of satellitesfrom OHB to ESTEC and then Kourou for launch over the next few years.

“The first four will undergo full validation testing, checkingthe underlying design is correct, in order to support the formal groundqualification of the design, with subsequent FOC satellites then going throughacceptance testing, concentrating on checking workmanship.”

The FOC satellites resembling their IOV predecessors but aredesigned with this production concept in mind. Hinged modules offer easy accessto internal subsystems for rapid repair or potential replacement of units.

The next satellite is due to arrive around the start of August.The battery of simulations includes vibration and acoustic testing, as well asthermal-vacuum testing – submitting them to the airlessness and temperatureextremes of space for weeks at a time. 

SeraData
Seradata produce the renowned SpaceTrak Launch & Satellite Database. Trusted by 100 of the world’s leading Space organisations, SpaceTrak is a fully queryable database used for market analysis, failure/risk assessment, spectrum analysis and space situational awareness (SSA).

For more information go to www.seradata.com/spacetrak

OneWeb aims to “streamline” future constellation from 48,000 to 6,000 sats whilst announcing further funding

In a surge of activity OneWeb - recently purchased by a British/Indian interest - has applied to the US FCC Read more

Blue Origin launches new version of New Shepard on suborbital uncrewed test flight plus a new capsule

At 1717 GMT on 14 January, Blue Origin conducted a test flight from their Van Horn, Texas, facility. The subject Read more

Manifest activity for SpaceX with new order for MethaneSAT and juggling rideshare payloads

On 13 January SpaceX was selected by MethaneSAT LLC (part of the Environmental Defense Fund) to launch its MethaneSAT mission Read more

First launch of 2021 sees SpaceX Falcon 9 place Turksat 5A into supersync GTO

SpaceX launched the Turksat 5A geostationary communications satellite at 0215 GMT on 8 January from Cape Canaveral, Florida. The mission Read more

Despite anti-democratic attempt to storm its government, USA gets a new President…one with Senate power which is bad news for SLS (Updated)

Having been persuaded by President Donald Trump to march in protest over his assertion (without believable evidence) that he had Read more

Oops butterfingers! Two DARPA Mandrake satellites are dropped during processing

Space News reports that two DARPA owned satellites Mandrake 1 and 2 have been damaged during processing.  The satellites were Read more

2020 Launch year – final reckoning: Lots of launch failures, the most ever satellites launched, while UK takes surprise runner-up position

According to the Seradata SpaceTrak launch and satellite database, the "final score" for launches in 2020 is 11 launch failures Read more

After negotiations Intelsat places order for two Airbus OneSat satellites

Peter B. de Selding (spaceintelreport.com) has revealed that after initially wanting three units in November 2020, Intelsat has had to Read more

Cookies & Privacy

Click here to read about use of cookies on the website

Categories

Archives