STACK 18: etac
reference orbit: psi' 8-97
dP/P: off
NOTE: runs which have not either energy or luminosity information 
      are not considered in the calculation.
BPMs: saturation kept in account 
                                                      
 [run]     [mean energy]     [sigma beam]     [integ.lumin.]
                MeV              Mev              nb-1    
__________________________________________________________________ 
 1299        2980.475          0.2384           102.65
 1300        2980.466          0.2152           102.42
 1301        2980.471          0.1645            99.67
 1303        2980.480          0.1143           101.90
 1304        2980.495          0.0686            34.09
__________________________________________________________________

 for this STACK: 1 nominal point(s)

[Nominal     [Weighted        [Weighted         [total
 energy]    mean energy]     sigma beam]     integ.lumin.]
   MeV          MeV              Mev              nb-1    

 2980.27      2980.475         0.1745           440.73