Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
3C 273	2011-07-30	03:29:36	2455772.64556	C	0.852	0.011	12.72	0.04
B2 1633+382	2011-07-30	05:08:52	2455772.71449	A	2.354	0.052	16.61	0.05
BL Lac	2011-07-30	06:04:57	2455772.75344	B	1.262	0.003	14.20	0.01