To support the "Deep Impact" mission at comet 9P/Tempel, SWAS was brought out of hibernation on June 1, 2005. Vehicle check-out was completed on June 5 with no discernible degradation of equipment found. SWAS observations of the comet focused on isotopic water output both before and after the "Deep Impact" impactor struck the comet's nucleus on July 4. While water output was found to naturally vary by more than a factor of three during the observation campaign, SWAS data showed that there was no excessive release of water due to the impact event. After three months of observation, SWAS was once again placed into hibernation on September 1, 2005.