Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
3C 273	2011-05-31	03:40:05	2455712.65284	C	0.882	0.002	12.75	0.04
BZU J0742+5444	2011-05-31	03:57:57	2455712.66524	A	2.221	0.012
OJ 287	2011-05-31	04:32:17	2455712.68909	4	0.687	0.009	14.88	0.01
B2 1633+382	2011-05-31	04:56:42	2455712.70604	A	1.429	0.048	15.69	0.05
S4 1030+61	2011-05-31	05:21:24	2455712.72319	A	3.224	0.007
BL Lac	2011-05-31	09:58:03	2455712.91531	B	0.876	0.008	13.82	0.01