1960-1985 Sq-seasonal/B-splive SV type magnetic field models
FILE FORMAT DESCRIPTION
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gsfcsqsb.bm UINF uinf.sqsb2xa.Qbmag2:d=1e+03
the damped version, denoted GSFC(SQSB-bm),
which minimizes a simple mean-square scalar
magnitude of the field over Earth's surface
gsfcsqsb.um UINF uinf.sqsb2xa.it1
the undamped version, denoted GSFC(SQSB-un)