During August 1999 the Sun had staked 42 geomagnetic quiet (Ap<20 nT) semi diurnal intervals and 20
 stormy ones.
SSM had predicted 33  GQIs and 5 GSI .
SEC - 33 GQIs and 5 GSIs, Meudon - 35 GQIs and 7 GSIs.
So one can see:
 
Rating list for April 99
Place GQIs GSIs Total
1 M : 0.83 M : 0.35 SSM : 0.68
2 SSM&SEC : 0.78 SSM&SEC : 0.25 SSM&SEC : 0.61
  - - -

 
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