C     PARAMS.INC MUST BE INCLUDED BEFORE THIS IS

C     COMMON BLOCK TO HOLD LAST USED GFACTORS INFORMATION

      REAL COEFF(MNCOEFF,MNFEAT,MNF10P7,MNSZA)
      REAL F10P7(MNF10P7), SZA(MNSZA)
      INTEGER NCOEFF, NF10P7, NSZA, NFEAT
      CHARACTER*(MFLNML) GFACFILENAME

      COMMON /GFACTORS/ COEFF, F10P7, SZA, NCOEFF, NF10P7, NSZA, 
     +                  NFEAT, GFACFILENAME