  This white paper recognizes gaps in observations that will, when addressed,
much improve solar radiation hazard and geomagnetic storm forecasting.
Radiation forecasting depends on observations of the entire "Solar Radiation
Hemisphere" that we will define. Mars exploration needs strategic placement of
radiation-relevant observations. We also suggest an orbital solution that will
improve geomagnetic storm forecasting through improved in situ and
solar/heliospheric remote sensing.
