Fig. 15
Top: initial cooldown of Planck, starting from launch on 14 May 2009 and concluding on 3 July 2009, when the bolometer plate reached 93 mK. The inset above shows the last week of the HFI cooldown. Middle: expanded view of the LFI cooldown from sorption cooler start-up on 5 June 2009 until 13 June 2009. Bottom: last day of the sorption cooler cooldown.
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