As Ursula says that plant looks very healthy, the roots do as well. Remember if the media looks even a bit wet as in the picture of you holding the plant (in the morning especially) do not water until it's pretty dry.
Unless it's very hot or extremely dry and breezy where you have the plant I can't imagine it needing water more than once every week or two. Read the culture sheets here
http://www.aos.org/orchids/cul...
