Table 1: UMa: log of observations.

4440-4640 Å		4040-4260 Å
JD (2 400 000+)	Phase	JD (2 400 000+)	Phase
49 804.373	0.010	49 804.485	0.032
49 799.346	0.023	49 799.410	0.035
49 799.679	0.088	49 799.628	0.078
49 805.334	0.199	49 805.384	0.209
49 800.327	0.215	49 800.358	0.221
49 800.474	0.244	49 800.530	0.255
49 800.689	0.286	49 806.382	0.405
49 806.298	0.389	49 801.336	0.414
49 801.308	0.408	49 801.667	0.479
49 801.687	0.483	49 802.350	0.613
49 802.324	0.608	49 797.457	0.651
49 797.381	0.636	49 797.689	0.697
49 797.601	0.680	49 803.303	0.800
49 803.387	0.817	49 798.316	0.820
49 798.658	0.887	49 798.654	0.885