3 Conclusions

Operating in "single particle mode" with the electromagnetic part of the EASTOP detector, typical upper limits of $\sim 10^{-4} \div 10^{-3}~{\rm erg}~{\rm cm}^{-2}$ have been obtained on the $10~{\rm GeV}\div 1~{\rm TeV}$ energy fluence for BATSE events occurring in the EASTOP field of view with zenith angles $\theta<30^{\circ}$.

A single statistical significant excess has been observed in the "all sky" survey mode during a total live time of 1.5 10³ days.