According to the latest ESA news release, Planck is doing well. The critical 4K cooler has been switched on as well as the HFI instrument. Tests on the slewing system have also been completed successfully.
Contributors who are members of the Planck Science Team are reminded that posts here must conform to the Planck Communication Policy. Sadly, this means that there will be some questions we can't answer or events we cannot immediately report on. For more details please contact Jan Tauber, the Planck Project Scientist.