%0 Generic %T U.S. weather and environmental satellites ready for the 21st century? : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, first session, July 11, 2007. %U https://ezaccess.libraries.psu.edu/login?url=http://search.proquest.com/congcomp/getdoc?HEARING-ID=HRG-2007-CST-0043