STACK 23: 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    
__________________________________________________________________ 
 2042        2930.453          0.1814           160.45
 2043        2930.453          0.1814            26.07
 2045        2930.459          0.1690            52.50
 2046        2930.530          0.1563           120.81
 2049        2930.533          0.1385            12.45
__________________________________________________________________

 for this STACK: 1 nominal point(s)

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

 2929.98      2930.482         0.1701           372.28