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Back Focal Plane Unit Box

Focal Plane Unit Box


Date: 18 May 2008
Satellite: Planck
Depicts: Front view of LFI and HFI feedhorns on FPU box
Location: Centre Spatial de Liège (CSL)
Copyright: ESA/Thales

Close-up of the focal plane unit box in the test configuration for the thermal balance / thermal vacuum test campaign at CSL, Belgium. The image shows the HFI bolometric detector array (small feedhorns on golden circular base) and the LFI radio receiver array (larger feedhorns around the HFI).
Last Update: 1 September 2019
19-Feb-2026 09:17 UT

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