Two some-more Galileo satellites staid for launch in May

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Another span of Galileo navigation satellites is scheduled for launch by Soyuz rocket in May, forward of a party on an Ariane 5 in a autumn, bringing a Galileo complement a step closer to operational use.

Galileo satellites atop Soyuz

The satellite platforms are built by OHB in Bremen, Germany, with their navigation payloads entrance from Surrey Satellite Technology Ltd in a UK, regulating a solid tide of high-technology apparatus sourced from all opposite Europe.

Once by testing, a satellites are flown to Europe’s Spaceport in French Guiana, to be launched dual during a time on Soyuz rockets.

A sum of 12 satellites has been deployed into circuit during a final 4 years – 6 in a final year alone.

The Galileo prolongation line has achieved a solid rhythm, as has a environmental testing, so 6 satellites are accessible for launch this year, some-more than were primarily planned.

In a second half of a year, 4 satellites will be launched together for a really initial time, on a customised “Ariane 5 ES Galileo”.

The European Commission asked ESA to demeanour into a feasibility of a Soyuz launch in a initial half of a year to speed adult a deployment of a constellation and to boost a robustness for delivering initial services.

One satellite is in storage during ESA’s technical centre in a Netherlands, carrying finished all a contrast to transparent it for flight, with another due to join it really soon.

Galileo satellite

The satellite platforms are built by OHB in Bremen, Germany, with their navigation payloads entrance from Surrey Satellite Technology Ltd in a UK, regulating a solid tide of high-technology apparatus sourced from all opposite Europe.

Once by testing, a satellites are flown to Europe’s Spaceport in French Guiana, to be launched dual during a time on Soyuz rockets.

A sum of 12 satellites has been deployed into circuit during a final 4 years – 6 in a final year alone.

The Galileo prolongation line has achieved a solid rhythm, as has a environmental testing, so 6 satellites are accessible for launch this year, some-more than were primarily planned.

In a second half of a year, 4 satellites will be launched together for a really initial time, on a customised “Ariane 5 ES Galileo”.

In growth given 2012, it is formed on a Ariane 5 ES (Evolution Storable), formerly used to place ESA’s 20-tonne ATV car into low circuit for resupplying a International Space Station.

This new various will lift a lighter cargo – 4 fuelled 738 kg Galileos and their ancillary dispenser – though will take it adult to a most aloft altitude around 23 222 km.

The aim circuit is indeed 300 km next a Galileo constellation’s final operative altitude. This leaves Ariane’s top theatre in a fast ‘graveyard orbit’, while a 4 satellites stratagem themselves adult to their handling position.

Following this initial Ariane 5 flight, there should be 18 Galileo satellites in orbit.

Source: ESA