Herschel Spruced Up After Arrival In Kourou

SPACE SCOPES

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by Staff Writers
Paris, France (ESA) Mar 06, 2009
Following Herschel's arrival at Europe's Spaceport in Kourou, French Guiana, the spacecraft has been unpacked and inspected. After an initial visual inspection, the telescope mirror, the largest ever to fly in space, was cleaned thoroughly to prepare it for launch.

The spacecraft arrived in Kourou on 12 February. Before the container was opened a day later, it was flushed with dry gaseous nitrogen, ensuring that the difference in pressure inside and outside of the container prevented any contaminants from entering.

Once the spacecraft was removed from the container, a first visual inspection was carried out. Between 15 and 17 February, the telescope mirrors were cleaned thoroughly. This was done using carbon dioxide snow, or dry ice, that vapourises and carries away any foreign particles.

The mirror was also inspected several times under ultraviolet light, without any other illumination. This was done to pick out any remaining particles that fluoresce and become visible under ultraviolet light.

The next step will comprise a mechanical and electrical fit check of the spacecraft with the adapter that is its interface to the launcher.

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SPACE SCOPES

Planck Arrives At Launch Pad

Kourou, French Guiana (SPX) Mar 05, 2009
The Planck spacecraft has arrived at the Centre Spatial Guyanais in Kourou, French Guiana, where it is scheduled to be launched atop an Ariane 5 rocket on April 16.

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