Author Topic: Soyuz Flight VS06 Soyuz-STB/Fregat-MT - Gaia December 19, 2013  (Read 94243 times)

Offline Jester

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ESA Gaia ‏@ESAGaia 2h

#Gaia transport: Antonov aircraft arrived in French Guiana. Off-load of the Deployable Sunshield Assembly (DSA) currently ongoing.

Offline jacqmans

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Start-up of payload preparations brings Europe’s Gaia another step closer to its mission to map a billion stars

August 29, 2013 – Soyuz Flight VS07

Europe’s billion-star surveyor, Gaia, is getting its first glimpse of the Spaceport where payload preparations have commenced for this spacecraft’s launch on an Arianespace Soyuz mission later in 2013. 

Gaia is now undergoing processing inside the Spaceport’s S1B payload preparation facility – where the advanced “star-mapper” was transported following its delivery this month to French Guiana by a cargo jetliner.

Today, another cargo aircraft arrived in French Guiana with Gaia’s deployable sunshield assembly and electrical ground support test equipment for the spacecraft’s pre-launch checkout.  The sunshield – which is to have a diameter of just over 10 meters when opened in space – will permanently shade Gaia’s telescopes and will serve as a power generator for the spacecraft.

In a mission organized by the European Space Agency, the spacecraft is designed to chart the locations and motions of a billion stars in order to create the largest-ever three-dimensional map of the Milky Way. Gaia was built by Astrium at its Toulouse, France facility.

Equipped with two optical telescopes to determine star locations and velocities, along with three science instruments and one of the largest digital cameras ever to be placed in space, Gaia is able to detect celestial objects that are a million times fainter than the unaided human eye can see.

For all objects brighter than magnitude 15 (which is 4,000 times fainter than the naked eye limit), Gaia will measure their positions to an accuracy of 24 microarcseconds – which is comparable to measuring the diameter of a human hair from a distance of 1,000 km.

After deployment by Soyuz, Gaia will monitor each of its target stars approximately 70 times over a five-year period and precisely chart their positions, distances, movements and changes in brightness. The spacecraft is expected to discover hundreds of thousands of new celestial objects – including asteroids, comets, extra-solar planets, brown dwarf “failed stars,” supernovae and quasars – from its orbital position at the L2 Lagrangian point some 1.5 million kilometers beyond Earth’s orbit.

A massive amount of data will be collected over Gaia’s planned five-year mission, with its full archive to exceed 1 petabyte in size – providing enough information to tackle many important problems related to the origin, structure and evolutionary history of the galaxy. 

This upcoming Arianespace flight is designated VS07 in the company’s numbering system, denoting the seventh Soyuz liftoff from French Guiana since the medium-lift vehicle’s October 2011 service entry.

http://www.arianespace.com/news-mission-update/2013/1093.asp

Offline jebbo

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Offline Jester

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sunshield arrival
« Last Edit: 09/05/2013 11:23 am by Jester »

Offline jebbo

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Offline Jester

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Cross post from the other thread, per Gaia QA, the mission name remains VS07

Offline holgar5

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Official launch date for this mission from http://www.rssd.esa.int/index.php?project=GAIA&page=index

20 November 2013
08:57:30 UTC

Online Salo

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Cross post from the other thread, per Gaia QA, the mission name remains VS07
A special sunshield is readied for Arianespace's Soyuz mission with the Gaia star-mapper

September 16, 2013 – Soyuz Flight VS06

The deployable sunshield framework for Europe’s Gaia billion-star surveyor has been unpacked at the Spaceport, marking a new milestone in preparations for Arianespace’s next mission with its medium-lift Soyuz launcher.

This skirt-type structure will be just over 10 meters in diameter when opened in space, serving as a sunshade to permanently protect Gaia’s telescopes and allow their temperatures to drop to below –100 degrees Celsius, while also acting as a power generator for the spacecraft. The shield’s underside will be partially covered with solar panels and always is to face the Sun, generating electricity to operate the spacecraft and its instruments.

Gaia was developed by the European Space Agency and produced by Astrium for an ambitious mission to chart a three-dimensional map of the Milky Way.  In the process, it will reveal the galaxy’s composition, formation and evolution.

The launch is planned for November 20. With a liftoff mass of 2,030 kg., Gaia is to be placed by the Soyuz launcher on a trajectory to an orbit around the Sun at a location known as the L2 Lagrangian point.

Arianespace’s mission with Gaia will be the Spaceport’s second liftoff with the Russian workhorse launcher in 2013.  It is now designated Flight VS06, taking the numbering previously assigned to an upcoming Soyuz launch with four O3b Network satellites – which has been delayed at the customer’s request.

http://www.arianespace.com/news-mission-update/2013/1097.asp

Gaia’s deployable sunshield framework is readied in the Spaceport’s S1C clean room facility after removal from its shipping container:

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« Last Edit: 10/23/2013 03:24 pm by holgar5 »

Offline woods170

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Cross post from the other thread, per Gaia QA, the mission name remains VS07

Per the new blog post, the mission has become VS06. It will also use the launcher from VS06. Only the specific fairing from the VS07 launcher will be retained for the Gaia mission.

http://blogs.esa.int/gaia/2013/09/17/from-vs-07-to-vs-06/
« Last Edit: 09/17/2013 12:42 pm by woods170 »

Offline Jester

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Stan, am I correct to assume the serial of this Soyuz is Е15000-004 ? (ex O3b)

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MLI and thermal protection installation

Offline jacqmans

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Continued sunshield preparations bring Gaia closer to its deep-space Arianespace Soyuz launch

October 10, 2013 – Soyuz Flight VS06

Payload preparations for Arianespace’s next Soyuz launch are progressing well at the Spaceport in French Guiana, where the Gaia billion-star surveyor is receiving its sunshield for in-orbit telescope protection as well as power generation.

This sunshield is one of the final elements in completing the European Space Agency’s Gaia, the installation of which has been performed by the assembly, integration and testing team of prime contractor Astrium – with support from Spain’s SENER, which produced the sunshield.

The latest activities involved placement of the inner thermal blankets for Gaia’s multi-layer sunshield insulation, as well as incorporation of solar array panels that will provide energy to power all on-board electronics. Both elements are positioned on the sunshield’s carbon-fiber reinforced composite framework, which also was integrated at the Spaceport.

When the sunshield’s 12 folding frames are opened in orbit after launch by Arianespace’s Soyuz, the fully-insulated sunshield will form a flat disc at the base of Gaia – shading its telescope from the sun and maintaining the spacecraft’s scientific instruments at a constant temperature of approximately -100 degrees Celsius. This will allow Gaia to perform its ambitious mission of making the largest, most precise three-dimensional map of the Milky Way by surveying an unprecedented one percent of its 100 billion stars.

Solar array panels for spacecraft power

The solar array panels fixed to the sunshield will provide approximately 1,850 Watts of electrical power, to be used by Gaia for powering the data processing computers, along with the communications, navigation and thermal control systems.

A massive amount of data will be collected over Gaia’s planned five-year mission, with its full archive to exceed 1 petabyte in size – providing enough information to answer questions related to the origin, structure and evolutionary history of the galaxy.

Gaia will be orbited on Arianespace’s Flight VS06, which is scheduled for liftoff on November 20 from the Spaceport.  As indicated by the company’s launcher family numbering designation, this will be the Spaceport’s sixth liftoff with medium-lift vehicle since its introduction at French Guiana in October 2011 by Arianespace.

After being deployed by Soyuz, the 2,030-kg. hexagonal/conical-shaped spacecraft will follow a flight path to an orbit around the Sun at the second Lagrange point (L2) – a distance of 1.5 million kilometers from Earth.  This makes Gaia the first deep space payload launched by Arianespace with Soyuz from the Spaceport.

http://www.arianespace.com/news-mission-update/2013/1100.asp
« Last Edit: 10/11/2013 12:10 pm by jacqmans »

Offline Jester

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Deployment test
« Last Edit: 10/14/2013 03:13 pm by Jester »

Offline Jester

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« Last Edit: 12/19/2013 02:35 am by Chris Bergin »

Offline jacqmans

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Gaia “opens up” at the Spaceport in preparation for Arianespace’s next Soyuz launch
 

October 14, 2013 – Soyuz Flight VS06


     Arianespace’s payload for the Soyuz VS06 mission in November is now ready to take in some sun on its upcoming deep-space trip, as the completed sunshield for Europe’s billion-star surveyor – Gaia – has been opened and validated for the final time at the Spaceport in French Guiana.

During activity in the Spaceport’s S1B clean room facility (pictured, from top to bottom), Gaia’s completed sunshield – which is composed of a carbon-fiber reinforced composite framework with thermal blankets covering the structural skeleton – was lowered around the spacecraft’s base, forming a flat disc more than 10 meters across.

Once deployed in space, this disc will shade Gaia from the Sun, maintaining a -110°C approximate temperature for its scientific instruments. In addition, the sunshield is equipped with solar array panels to power all onboard electronics, including data processing computers, as well as the communications, navigation and thermal control systems.

Operating under contract to the European Space Agency, the sunshield’s installation was performed by prime contractor Astrium’s assembly, integration and testing team – with support from Spain’s SENER, which is responsible for the sunshield’s design and manufacture.

With a liftoff mass of approximately 2,030 kg. for its Arianespace Soyuz launch, Gaia is tasked with the ambitious mission of measuring the position and velocity of approximately one billion stars, as well as determining their brightness, temperature, composition and motion through space, while creating a three-dimensional map of the Milky Way Galaxy.

This spacecraft’s scientific instruments can detect objects one million times fainter than the unaided human eye can see. For objects 4,000 times dimmer than human viewing limits, Gaia will measure to an accuracy of 24 microarcseconds – comparable to observing the diameter of one strand of human hair at a distance of 1,000 km.

As the first deep-space passenger on an Arianespace Soyuz flight from French Guiana, Gaia will operate from the second Lagrange point (L2) in its orbit around the Sun, which keeps it on pace with Earth, while allowing for a more stable viewpoint some 1.5 million kilometers away.

Designated VS06 in Arianespace’s numbering system, this flight – scheduled for a November 20 liftoff – represents the sixth mission of the medium-lift Russian workhorse from French Guiana since its initial launch from the Spaceport in 2011.

http://www.arianespace.com/news-mission-update/2013/1101.asp
« Last Edit: 10/15/2013 05:32 pm by jacqmans »

Offline jacqmans

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Offline Jester

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A russian speaking little bird has mentioned there are "issues"

Online Nicolas PILLET

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According to a poster on our French forum, the launch is delayed. No more infos as for now.

http://www.forum-conquete-spatiale.fr/t15190p30-lancement-soyouz-vs06-gaia-date-a-venir
Nicolas PILLET
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Offline Stan Black

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Stan, am I correct to assume the serial of this Soyuz is Е15000-004 ? (ex O3b)

Yes

http://blogs.esa.int/gaia/files/2013/10/pic21.jpg

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