Contains the 1990-1995 B-spline type field model FILE FORMAT DESCRIPTION readme.t gsfcs95.sc UINF Final version of the 1900-1995 B-spline type magnetic field model, denoted GSFC(S95-sc) gsfcs95.igr UINF Actual model from which the IGRF candidates were extracted gsfcs95.s UINF Externally unconstrained version of the final model denoted GSFC(S95-s)