Washington photometry observations

  No    Ref    T1    C-M    M-T1   T1-T2   M51

 0037    18          1.175  0.799  0.530        
 0104    18          1.023  0.764  0.523        
 0114    18          1.295  0.837  0.546        
 0169    18          1.824  1.126  0.732        
 0177    18          1.158  0.763  0.484