About rating
Q (Quiet): Ap=0-7 nT Mi (Minor): 30-49 nT
U (Unsettled): 8-15 Ma (Major): 50-99
A (Active): 16-29 S(Severe): >100

1.List of Forecasters

GSC - Geological Sunway of Canada
SEC - Space Environment Data Center (USA)
SIDC - Solar Influences Data Center (Belgium)
SSM - Sector of Space Magnetoplasmadynamics (IZMIRAN, Russia)
STAR - Solar Terrestrial Activity Report from Norway
STW - SolTerWarn (Fredericksburg, USA)
SUN - Ideal forecaster (Space)
SWA - SunWatch (Geophys. Inst., Czech Rep.)
SYD - Sydney
TOK - Tokyo
IPS - Ionospheric Prediction Service(Autralia)
CGP - Center of Geophysical Prediction ( IZMIRAN, Russia )