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The amplitude of the orbital periodicity with P = 0d.693265 changed from 0m.07 V in September 1997 to 0m.73 V in the second part of 2000. The system displays the properties of an eclipsing interacting binary. The small amplitude orbital light variations were found in the pre-maximum stage. The structure of system in outburst, and the nature of flaring episodes during the light decay are discussed.