#title CDS effective area as a function of mirror position #maxentries 1000 #items DATE R*8 Date entry was added to the database DATE_EFF R*8 Effective date for the data SPECTRUM C*2 Either "N1", "N2", "G1", "G2", "G3", or "G4" EFF_AREA(256) R*4 Effective area #index DATE sorted DATE_EFF sort