Table 1: Date of observations, and number of frames (nof) obtained at each optical band.

Date	B	V	R	I
	(nof)	(nof)	(nof)	(nof)
26/03/01	-	-	24	24
18/04/01	16	16	17	16
19/04/01	5	5	5	5
23/05/02	27	-	-	27
28/05/02	19	-	-	19
29/05/02	24	-	-	24
20/05/02	24	-	-	24