FILE FORMAT DESCRIPTION /BIAS/ Observatory bias values for several models /BLOX/ Main field models from Jeremy Bloxham /CAIN/ Main field models from Joseph Cain /CANDID/ GSFC, IZMIRAN, and US/UK 1995 candidate models /DGRF/ Various DGRF models /DMSP/ Models from the Defense Meteorological Satellite Program /IGRF/ Various IGRF models /INDICES/ Kp, ssn, F10.7, and Dst indices; and sun-Earth angles /MISC/ Assorted historical models /SDI/ Models from the Strategic Defense Initiative /SPLINE/ GSFC Spline model /SQ/ GSFC Solar Quiet (Sq) model fid ASCII Description of FID format uinf ASCII Description of UINF format uned ASCII Description of UNED format