Posts Tagged ‘All sky survey’

Planck Completes First Survey of the Sky

February 28, 2010

On February 14th, Planck completed its first survey of the whole sky. But there was no rest – it immediately started on its second all-sky survey.

The nominal Planck mission is for two all sky surveys, with the second survey completed in 6 months from now. However, the satellite is using cryogens sufficiently sparingly that it’s capable of two further all sky surveys, for a total of 4. This will give it greater sensitivity, greater control of systematic effects, and a chance to extend its search for variable and moving, ie. solar system, objects. ESA has approved this extension, so the project will certainly go to 4 surveys. Quite what STFC, the UK astronomy funding body which is going through a series of financial crises, will do about this isn’t clear…

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