Cool-down to operational temperatures
Date: 03 Jul 2009
Satellite: Planck
Depicts: Temperature evolution of spacecraft and payload
Copyright: ESA and HFI Consortium
Plot of the temperature versus time for the three coolers of the Planck active cooling system (20K, 4K and 0.1K), during the cool-down to operational temperatures in the first seven weeks after launch of the Planck spacecraft on 14 May 2009. The temperature of the coldest of three V-grooves, which together provide passive cooling to ~50K, is also indicated.
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Last Update: 03 Jul 2009
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Hi-Res [jpg]
Hi-Res [gif]
