20260420 9 sites
         AKK FTK GFU IBG KCC MIN NNO NZN SKI 
20:13:15  O   O   x   x   x   O   O   O   O  
20:13:15  O   O   x   x   x   O   O   O   O  
         AKK FTK GFU IBG KCC MIN NNO NZN SKI