The performance of the EAS array at Kolar Gold Fields (working since 1984 and upgraded by 1987) is described. The army has been designed lo seamh for sources of ulba high energy (UHE) photons. The array, the data recording and estimation of shower parameters are briefly described. The angular resolution of the array is discussed in derail. We demonsbate, using our data, that the shower front is not a plane and derive an expression for the correcrion lo be applied lo the observed time delays in each ms before fitting a plane front. We suggest using an accepmce cone, dependent on the number of timing detectors used to estimate lhe anival direction of ms, for pint source searches.
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