Need GOES Image Expert

Folks,

A quick question for a GOES image expert. Are the GOES
satellite images, such as can be found here:

   http://goes.gsfc.nasa.gov/goeseast-lzw/peru/

in some kind of map projection? Where can I learn about
these images? The GOES folks don't seem to be making this
information obvious. :-(

Cheers,

David
-- 
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Se****e ma de ni thui. ("Perhaps thou speakest truth.")